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Message boards : Generalized Fermat Prime Search : Genefer 3.3.3 testing

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Iain BethuneProject donor
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Message 112339 - Posted: 15 Dec 2017 | 9:16:16 UTC

Hi folks,

Yves has been busy and we have just pushed out a new release of genefer for testing. What's new? On the CPU, expect ~10% speedups for the x87 transform (current n<=20 leading edge tests), especially on 64-bit machines. The vector transforms (sse2, avx, fma3...) have also been optimised with a focus on the large (n>=21) tests. It's hard to generate code that is faster on *all* CPU types, so let us know how it goes for you. There are no speed improvements for the OCL code.

You can download the binaries from here:

https://app.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin

Ignore the comments that say 3.3.2 (my bad) - all of the binaries are the new version 3.3.3.

We will do a full test campaign to verify everything works on a range of platforms, but for now it would be interesting to see benchmark results from anyone that wants to give it a try.

Cheers

- Iain
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3073428256125*2^1290000-1 is Prime!

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Discovered 9 mega primesEliminated 4 conjecture "k"sFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes largest primeFound 4 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain StageFound 1 prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de PrimesFound 1 prime in the 2021 Tour de Primes Mountain StageFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (105,242,843)Cullen LLR Double Bronze: Earned 100,000,000 credits (101,538,484)ESP LLR Double Bronze: Earned 100,000,000 credits (100,642,296)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (106,956,296)PPS LLR Double Silver: Earned 200,000,000 credits (224,801,835)PSP LLR Double Bronze: Earned 100,000,000 credits (101,484,952)SoB LLR Double Bronze: Earned 100,000,000 credits (113,220,736)SR5 LLR Double Bronze: Earned 100,000,000 credits (140,314,344)SGS LLR Double Bronze: Earned 100,000,000 credits (100,409,432)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Double Bronze: Earned 100,000,000 credits (100,338,924)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,172,892)321 Sieve (suspended) Double Bronze: Earned 100,000,000 credits (115,948,450)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,142,109)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,504,945)PPS Sieve Double Gold: Earned 500,000,000 credits (513,057,580)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,288,222)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,149,354)AP 26/27 Double Silver: Earned 200,000,000 credits (240,277,097)GFN Double Gold: Earned 500,000,000 credits (864,847,311)WW Double Amethyst: Earned 1,000,000,000 credits (1,988,304,000)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 112344 - Posted: 15 Dec 2017 | 16:08:57 UTC

I took production primegrid_genefer_3_3_2_3.16_windows_x86_64__cpuGFN15.exe and mentioned 3.3.3 version of Genefer CPU.

Run specific x87 benchmark on 3 different CPUs, all Win10x64

CPU i5-3570K, version 3.3.2

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 131 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 286 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 612 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 1.31 ms/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 2.79 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 5.94 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 12.7 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 26.7 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 56.5 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 119 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 250 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 532 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 1.1 s/mul. Err: 0.0001 90294174 digits

CPU i5-3570K, version 3.3.3

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 120 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 260 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 560 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 1.2 ms/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 2.55 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 5.44 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 11.7 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 24.9 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 53 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 112 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 235 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 495 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 1.04 s/mul. Err: 0.0001 90294174 digits

CPU i5-6600, version 3.3.2

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 128 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 277 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 600 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 1.28 ms/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 2.75 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 5.85 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 12.5 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 26.1 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 56.9 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 116 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 243 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 512 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 1.05 s/mul. Err: 0.0001 90294174 digits

CPU i5-6600, version 3.3.3

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 120 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 254 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 547 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 1.18 ms/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 2.51 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 5.37 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 11.4 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 23.8 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 50.5 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 106 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 223 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 469 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 999 ms/mul. Err: 0.0001 90294174 digits

CPU i7-8700K, version 3.3.2

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 99.7 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 214 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 462 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 988 us/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 2.11 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 4.47 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 9.47 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 20 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 42.5 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 88.7 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 187 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 388 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 814 ms/mul. Err: 0.0001 90294174 digits

CPU i7-8700K, version 3.3.3

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)"
...
2688666^4096+1 Time: 91.5 us/mul. Err: 0.0001 26336 digits
2199064^8192+1 Time: 199 us/mul. Err: 0.0001 51956 digits
1798620^16384+1 Time: 427 us/mul. Err: 0.0001 102481 digits
1471094^32768+1 Time: 914 us/mul. Err: 0.0001 202102 digits
1203210^65536+1 Time: 1.94 ms/mul. Err: 0.0001 398482 digits
984108^131072+1 Time: 4.13 ms/mul. Err: 0.0001 785521 digits
804904^262144+1 Time: 8.77 ms/mul. Err: 0.0001 1548156 digits
658332^524288+1 Time: 18.6 ms/mul. Err: 0.0001 3050541 digits
538452^1048576+1 Time: 39.6 ms/mul. Err: 0.0001 6009544 digits
440400^2097152+1 Time: 82.8 ms/mul. Err: 0.0001 11836006 digits
360204^4194304+1 Time: 175 ms/mul. Err: 0.0001 23305854 digits
294612^8388608+1 Time: 366 ms/mul. Err: 0.0001 45879398 digits
240964^16777216+1 Time: 767 ms/mul. Err: 0.0001 90294174 digits
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Message 112345 - Posted: 15 Dec 2017 | 16:54:52 UTC

Does anyone have a link to the previous version? I'd love to test, but I really have no idea on how to get the old release outside of requesting a WU from Boinc and retrieving the program manually.


Speaking which, it would be nice if "new version, test please" posts in general would include the links for both the old and the new versions. It would be pretty handy to have both in a single, convenient place.

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Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,148,632)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,703,540,875)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 112347 - Posted: 15 Dec 2017 | 17:53:26 UTC - in response to Message 112345.

Does anyone have a link to the previous version? I'd love to test, but I really have no idea on how to get the old release outside of requesting a WU from Boinc and retrieving the program manually.


Speaking which, it would be nice if "new version, test please" posts in general would include the links for both the old and the new versions. It would be pretty handy to have both in a single, convenient place.


I believe these may be what you are looking for:
http://www.primegrid.com/download/primegrid_genefer_3_3_2_3.16_windows_x86_64__cpuGFN21.exe
http://www.primegrid.com/download/primegrid_genefer_3_3_2_3.16_x86_64-apple-darwin__cpuGFN21
http://www.primegrid.com/download/primegrid_genefer_3_3_2_3.16_x86_64-pc-linux-gnu__cpuGFN21

It is the same executable for all N values.

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 112348 - Posted: 15 Dec 2017 | 18:07:03 UTC - in response to Message 112345.

Speaking which, it would be nice if "new version, test please" posts in general would include the links for both the old and the new versions. It would be pretty handy to have both in a single, convenient place.


That is a good suggestion.
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Found 1 prime in the 2018 Tour de Primes321 LLR Bronze: Earned 10,000 credits (53,871)Cullen LLR Bronze: Earned 10,000 credits (15,017)ESP LLR Bronze: Earned 10,000 credits (62,595)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (21,984)PPS LLR Silver: Earned 100,000 credits (136,702)PSP LLR Bronze: Earned 10,000 credits (47,301)SoB LLR Silver: Earned 100,000 credits (305,770)SR5 LLR Bronze: Earned 10,000 credits (18,306)SGS LLR Bronze: Earned 10,000 credits (14,608)TRP LLR Silver: Earned 100,000 credits (282,537)Woodall LLR Bronze: Earned 10,000 credits (33,562)321 Sieve (suspended) Gold: Earned 500,000 credits (865,427)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,397,311)PPS Sieve Ruby: Earned 2,000,000 credits (2,349,587)AP 26/27 Amethyst: Earned 1,000,000 credits (1,475,695)GFN Ruby: Earned 2,000,000 credits (2,056,798)PSA Silver: Earned 100,000 credits (286,377)
Message 112351 - Posted: 15 Dec 2017 | 20:23:17 UTC - in response to Message 112339.
Last modified: 15 Dec 2017 | 20:27:55 UTC

I tested all the transforms for my i5-3317U running Windows 10 Enterprise 2016 LTSB 64 bits. It seems that the F64 transform was removed from 3.3.3 so I will be omitting those results. In summary, AVX saw performance improvements in some areas, and losses in others; SSE2 and SSE4 had losses all around; and x87 had improvements all around.

Version 3.3.2:

Generalized Fermat Number benchmarks for transform implementation "AVX (Intel)" 10980642^32+1 Time: 128 ns/mul. Err: 0.1006 226 digits 8981090^64+1 Time: 242 ns/mul. Err: 0.1250 446 digits 7345652^128+1 Time: 1.46 us/mul. Err: 0.1719 879 digits 6008024^256+1 Time: 1.7 us/mul. Err: 0.1562 1736 digits 4913974^512+1 Time: 4.3 us/mul. Err: 0.1562 3427 digits 4019150^1024+1 Time: 5.14 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 15.5 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 21.2 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 65.5 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 94.8 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 288 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 432 us/mul. Err: 0.1406 398482 digits 984108^131072+1 Time: 1.27 ms/mul. Err: 0.1484 785521 digits 804904^262144+1 Time: 1.98 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 6.22 ms/mul. Err: 0.1445 3050541 digits 538452^1048576+1 Time: 10.2 ms/mul. Err: 0.1367 6009544 digits 440400^2097152+1 Time: 30.8 ms/mul. Err: 0.1406 11836006 digits 360204^4194304+1 Time: 51.4 ms/mul. Err: 0.1484 23305854 digits 294612^8388608+1 Time: 157 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 271 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 7.


Generalized Fermat Number benchmarks for transform implementation "SSE2" 10980642^32+1 Time: 316 ns/mul. Err: 0.1250 226 digits 8981090^64+1 Time: 805 ns/mul. Err: 0.1875 446 digits 7345652^128+1 Time: 1.49 us/mul. Err: 0.1562 879 digits 6008024^256+1 Time: 2.55 us/mul. Err: 0.1562 1736 digits 4913974^512+1 Time: 5.01 us/mul. Err: 0.1562 3427 digits 4019150^1024+1 Time: 10.6 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 20.7 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 45.8 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 89.7 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 201 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 393 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 881 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.71 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 3.86 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 7.95 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 17.9 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 35.1 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 87.5 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 170 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 419 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 5.


Generalized Fermat Number benchmarks for transform implementation "SSE4" 10980642^32+1 Time: 184 ns/mul. Err: 0.1250 226 digits 8981090^64+1 Time: 516 ns/mul. Err: 0.1875 446 digits 7345652^128+1 Time: 1.13 us/mul. Err: 0.1562 879 digits 6008024^256+1 Time: 1.86 us/mul. Err: 0.1562 1736 digits 4913974^512+1 Time: 3.73 us/mul. Err: 0.1562 3427 digits 4019150^1024+1 Time: 7.78 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 15.9 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 34.8 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 75.4 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 158 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 321 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 700 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.42 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 3.14 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 6.8 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 15 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 30.5 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 76.7 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 151 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 372 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 6.


Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)" 10980642^32+1 Time: 811 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 1.75 us/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 4 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 8.34 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 18.1 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 39.3 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 85.1 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 184 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 400 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 858 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.83 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 3.9 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 8.38 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 17.8 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 37.7 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 80 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 169 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 355 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 748 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.57 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 1.



Version 3.3.3:

Generalized Fermat Number benchmarks for transform implementation "AVX (Intel)" 4019150^1024+1 Time: 4.15 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 8.9 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 20.1 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 41.2 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 90.2 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 187 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 404 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 847 us/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 1.89 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 4.36 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 9.95 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 23.2 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 53.5 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 128 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 289 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 8.


Generalized Fermat Number benchmarks for transform implementation "SSE2" 4019150^1024+1 Time: 15.5 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 32.4 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 66.8 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 147 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 306 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 677 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 1.4 ms/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 3.03 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 6.28 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 13.7 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 28.2 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 61.2 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 128 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 279 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 579 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 3.


Generalized Fermat Number benchmarks for transform implementation "SSE4" 4019150^1024+1 Time: 10.5 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 22.2 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 46 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 108 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 227 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 519 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 1.08 ms/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 2.61 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 5.02 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 11.2 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 23.3 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 51.5 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 108 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 241 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 501 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 4.


Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)" 10980642^32+1 Time: 681 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 1.54 us/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 3.47 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 7.43 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 16.1 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 36.4 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 78.1 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 169 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 366 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 785 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.68 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 3.57 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 7.64 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 16.4 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 35.1 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 74.6 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 158 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 332 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 698 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.48 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 1.

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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 7 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (27,589,187)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (46,834,631)PPS LLR Emerald: Earned 50,000,000 credits (61,756,838)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Emerald: Earned 50,000,000 credits (50,873,282)SR5 LLR Sapphire: Earned 20,000,000 credits (23,807,284)SGS LLR Sapphire: Earned 20,000,000 credits (21,819,843)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (502,006,216)GFN Double Silver: Earned 200,000,000 credits (278,220,852)WW Double Silver: Earned 200,000,000 credits (473,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 112363 - Posted: 16 Dec 2017 | 4:28:06 UTC

Here are results from my X5675:
x87 3.3.2:

Generalized Fermat Number benchmarks for transform implementation "x87 (80-bit)" 1471094^32768+1 Time: 1.47 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 3.15 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 6.63 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 14.1 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 29.7 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 63.1 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 133 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 281 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 584 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.24 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 2.


3.3.3:
1471094^32768+1 Time: 1.34 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 2.88 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 6.11 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 13 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 27.5 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 59.2 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 125 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 266 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 556 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.17 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 2.

A good 10%+ speedup at lower n. Keeps some life in the old platform for non-AVX units.

SSE4 (gfn20+):
3.3.2
538452^1048576+1 Time: 12.1 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 25.1 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 55.9 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 114 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 266 ms/mul. Err: 0.1250 90294174 digits


3.3.3
538452^1048576+1 Time: 19.7 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 42.9 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 88.7 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 193 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 397 ms/mul. Err: 0.1094 90294174 digits


Almost twice the time. Not a good result! (Also, if it matters, 3.3.2 starts SSE4/SSE2 benchmarks at n=5, 3.3.3 at n=10)

SSE2 (gfn20+)
3.3.2
538452^1048576+1 Time: 15.6 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 31.2 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 69.9 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 137 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 329 ms/mul. Err: 0.1250 90294174 digits


3.3.3
538452^1048576+1 Time: 24.8 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 52.6 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 109 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 231 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 478 ms/mul. Err: 0.1094 90294174 digits


Ouch. Something not right?

On my 3930k:
x87
3.3.2:
1471094^32768+1 Time: 1.29 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 2.75 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 5.82 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 12.4 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 26.2 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 55.6 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 116 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 245 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 510 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.07 s/mul. Err: 0.0001 90294174 digits


3.3.3:
1471094^32768+1 Time: 1.18 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 2.49 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 5.33 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 11.4 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 24.2 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 51.5 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 110 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 228 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 474 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 978 ms/mul. Err: 0.0001 90294174 digits


A good result there.

AVX (20+):
3.3.2
538452^1048576+1 Time: 6.38 ms/mul. Err: 0.1367 6009544 digits 440400^2097152+1 Time: 17.6 ms/mul. Err: 0.1406 11836006 digits 360204^4194304+1 Time: 29.4 ms/mul. Err: 0.1484 23305854 digits 294612^8388608+1 Time: 79.9 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 136 ms/mul. Err: 0.1250 90294174 digits


3.3.3
538452^1048576+1 Time: 5.89 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 12.6 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 28 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 61.1 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 135 ms/mul. Err: 0.1094 90294174 digits


Some speedup, some not.

SSE2:
3.3.2
538452^1048576+1 Time: 13.3 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 25.9 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 57.7 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 113 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 251 ms/mul. Err: 0.1250 90294174 digits


3.3.3
538452^1048576+1 Time: 21.1 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 45.1 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 92.5 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 197 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 438 ms/mul. Err: 0.1094 90294174 digits


Another system with a serious slowdown on SSE2 (and SSE4, not going to post benchies).
____________
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Message 112365 - Posted: 16 Dec 2017 | 8:27:52 UTC
Last modified: 16 Dec 2017 | 8:39:00 UTC

Here are some benchmarks for the i5 6600k, overclocked to 4100mhz and with some high speed RAM. Generally speaking, the new version is good if you're sure to use x87, but bad otherwise.


FMA3: both seem about the same, maybe with some small margin in favor of the old version

Ver. 3.3.2
4019150^1024+1 Time: 2.01 us/mul. Err: 0.1602 6763 digits 3287270^2048+1 Time: 3.97 us/mul. Err: 0.1641 13347 digits 2688666^4096+1 Time: 8.29 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 17.5 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 36.6 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 78.8 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 166 us/mul. Err: 0.1504 398482 digits 984108^131072+1 Time: 363 us/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 753 us/mul. Err: 0.1523 1548156 digits 658332^524288+1 Time: 1.7 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 3.64 ms/mul. Err: 0.1406 6009544 digits 440400^2097152+1 Time: 8.35 ms/mul. Err: 0.1406 11836006 digits 360204^4194304+1 Time: 17.3 ms/mul. Err: 0.1328 23305854 digits 294612^8388608+1 Time: 40.3 ms/mul. Err: 0.1367 45879398 digits Genefer Mark = 24.


Ver. 3.3.3
4019150^1024+1 Time: 1.97 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 4.12 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 8.64 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 18.5 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 38.5 us/mul. Err: 0.1406 102481 digits 1471094^32768+1 Time: 81.8 us/mul. Err: 0.1406 202102 digits 1203210^65536+1 Time: 172 us/mul. Err: 0.1289 398482 digits 984108^131072+1 Time: 366 us/mul. Err: 0.1406 785521 digits 804904^262144+1 Time: 779 us/mul. Err: 0.1250 1548156 digits 658332^524288+1 Time: 1.68 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 3.76 ms/mul. Err: 0.1172 6009544 digits 440400^2097152+1 Time: 8.27 ms/mul. Err: 0.1172 11836006 digits 360204^4194304+1 Time: 18.1 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 39.9 ms/mul. Err: 0.1104 45879398 digits 240964^16777216+1 Time: 86.9 ms/mul. Err: 0.1016 90294174 digits Genefer Mark = 24.


AVX: marginal speedups overall (scored a 22 instead of a 21). Notice how the older version is consistently slower when "n" is odd and consistently faster when "n" is even... the new version loses a bit of speed with even n, but gains a lot more when n is odd, coming out on top when you compare the overall performance.

Ver. 3.3.2
4019150^1024+1 Time: 2.34 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 5.32 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 9.82 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 23.2 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 43.3 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 102 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 194 us/mul. Err: 0.1406 398482 digits 984108^131072+1 Time: 462 us/mul. Err: 0.1484 785521 digits 804904^262144+1 Time: 876 us/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 2.1 ms/mul. Err: 0.1445 3050541 digits 538452^1048576+1 Time: 4.13 ms/mul. Err: 0.1367 6009544 digits 440400^2097152+1 Time: 9.97 ms/mul. Err: 0.1406 11836006 digits 360204^4194304+1 Time: 19.3 ms/mul. Err: 0.1484 23305854 digits 294612^8388608+1 Time: 46.8 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 90.7 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 21.


Ver. 3.3.3
4019150^1024+1 Time: 2.2 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 4.65 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 9.86 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 20.9 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 43.9 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 93 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 197 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 414 us/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 878 us/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 1.88 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 4.17 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 9.1 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 19.7 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 43.1 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 93.5 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 22.



SSE4: MAJOR slowdows (7 vs 13).

Ver. 3.3.2
4019150^1024+1 Time: 4.35 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 8.93 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 19.1 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 39.3 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 85.4 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 175 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 378 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 774 us/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 1.69 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 3.47 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 7.61 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 15.6 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 34.3 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 69.6 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 154 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 13.


Ver. 3.3.3
4019150^1024+1 Time: 5.9 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 12.4 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 25.9 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 60.2 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 125 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 287 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 598 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.34 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 2.79 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 6.18 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 12.8 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 28.1 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 57.7 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 125 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 257 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 7.


SSE2: MAJOR slowdowns (6 vs 11)
Ver 3.3.2
4019150^1024+1 Time: 5.26 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 11.4 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 22.3 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 48.3 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 97.3 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 210 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 425 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 912 us/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 1.88 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 4.01 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 8.36 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 17.8 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 37.4 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 78.5 ms/mul. Err: 0.1406 45879398 digits Genefer Mark = 11.


Ver. 3.3.3
4019150^1024+1 Time: 8.19 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 17.1 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 35.4 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 78.9 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 164 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 363 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 752 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.64 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 3.4 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 7.38 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 15.2 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 32.8 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 67.4 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 144 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 295 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 6.


x87: A small speedup
Ver. 3.3.2
10980642^32+1 Time: 434 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 960 ns/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 2.15 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 4.86 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 10.8 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 23.4 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 51.3 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 112 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 241 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 519 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.11 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 2.37 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 5.03 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 10.7 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 22.5 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 47.6 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 99.5 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 209 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 436 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 912 ms/mul. Err: 0.0001 90294174 digits Genefer Mark = 2.


Ver. 3.3.3
10980642^32+1 Time: 371 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 835 ns/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 1.92 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 4.33 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 9.73 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 21.6 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 47.3 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 103 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 223 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 480 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.03 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 2.19 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 4.67 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 9.94 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 21 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 44.4 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 93.2 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 196 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 409 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 854 ms/mul. Err: 0.0001 90294174 digits Genefer Mark = 2.

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Message 112366 - Posted: 16 Dec 2017 | 9:17:43 UTC - in response to Message 112344.
Last modified: 16 Dec 2017 | 9:19:54 UTC

i7-8700K, a bit of slowdown for FMA3 in 3.3.3.

CPU i7-8700K, version 3.3.2 FMA3

1471094^32768+1 Time: 70.5 us/mul. Err: 0.1562 202102 digits
1203210^65536+1 Time: 150 us/mul. Err: 0.1504 398482 digits
984108^131072+1 Time: 329 us/mul. Err: 0.1562 785521 digits
804904^262144+1 Time: 679 us/mul. Err: 0.1523 1548156 digits
658332^524288+1 Time: 1.51 ms/mul. Err: 0.1562 3050541 digits
538452^1048576+1 Time: 3.17 ms/mul. Err: 0.1406 6009544 digits
440400^2097152+1 Time: 7.81 ms/mul. Err: 0.1406 11836006 digits
360204^4194304+1 Time: 16.7 ms/mul. Err: 0.1328 23305854 digits
294612^8388608+1 Time: 39.2 ms/mul. Err: 0.1367 45879398 digits
240964^16777216+1 Time: 79.9 ms/mul. Err: 0.1289 90294174 digits
Genefer Mark = 26.

CPU i7-8700K, version 3.3.3 FMA3

1471094^32768+1 Time: 73 us/mul. Err: 0.1406 202102 digits
1203210^65536+1 Time: 155 us/mul. Err: 0.1289 398482 digits
984108^131072+1 Time: 329 us/mul. Err: 0.1406 785521 digits
804904^262144+1 Time: 702 us/mul. Err: 0.1250 1548156 digits
658332^524288+1 Time: 1.51 ms/mul. Err: 0.1250 3050541 digits
538452^1048576+1 Time: 3.29 ms/mul. Err: 0.1172 6009544 digits
440400^2097152+1 Time: 7.69 ms/mul. Err: 0.1172 11836006 digits
360204^4194304+1 Time: 17.1 ms/mul. Err: 0.1094 23305854 digits
294612^8388608+1 Time: 38.5 ms/mul. Err: 0.1104 45879398 digits
240964^16777216+1 Time: 87.1 ms/mul. Err: 0.1016 90294174 digits
Genefer Mark = 26.

i7-8700K, similar for AVX

CPU i7-8700K, version 3.3.2 AVX

1471094^32768+1 Time: 83.1 us/mul. Err: 0.1562 202102 digits
1203210^65536+1 Time: 176 us/mul. Err: 0.1328 398482 digits
984108^131072+1 Time: 372 us/mul. Err: 0.1289 785521 digits
804904^262144+1 Time: 785 us/mul. Err: 0.1406 1548156 digits
658332^524288+1 Time: 1.67 ms/mul. Err: 0.1250 3050541 digits
538452^1048576+1 Time: 3.57 ms/mul. Err: 0.1250 6009544 digits
440400^2097152+1 Time: 8.3 ms/mul. Err: 0.1250 11836006 digits
360204^4194304+1 Time: 18.6 ms/mul. Err: 0.1094 23305854 digits
294612^8388608+1 Time: 42.1 ms/mul. Err: 0.1250 45879398 digits
240964^16777216+1 Time: 92 ms/mul. Err: 0.1094 90294174 digits
Genefer Mark = 24.

CPU i7-8700K, version 3.3.3 FMA3

1471094^32768+1 Time: 83.3 us/mul. Err: 0.1562 202102 digits
1203210^65536+1 Time: 176 us/mul. Err: 0.1328 398482 digits
984108^131072+1 Time: 373 us/mul. Err: 0.1289 785521 digits
804904^262144+1 Time: 793 us/mul. Err: 0.1406 1548156 digits
658332^524288+1 Time: 1.67 ms/mul. Err: 0.1250 3050541 digits
538452^1048576+1 Time: 3.62 ms/mul. Err: 0.1250 6009544 digits
440400^2097152+1 Time: 8.35 ms/mul. Err: 0.1250 11836006 digits
360204^4194304+1 Time: 18.5 ms/mul. Err: 0.1094 23305854 digits
294612^8388608+1 Time: 41.4 ms/mul. Err: 0.1250 45879398 digits
240964^16777216+1 Time: 93.2 ms/mul. Err: 0.1094 90294174 digits
Genefer Mark = 24.
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Message 112367 - Posted: 16 Dec 2017 | 10:23:59 UTC

"Generalized Fermat Prime Search benchmarks" are the most significant.

GFN15-GFN19 => x87.
x87 was written in c++ in ver 3.3.2 and is optimized in asm in 3.3.3: then it should be faster on every CPU.

GFN20 => x87 with 3.3.2. The error of 3.3.3 (fma, avx, ...) is lower then this version may still to be able to test some n=20 with fast transforms... but we are very close to the limit at b ~ 950000.

GFN21 is then only n that uses fma, avx, sse4, or sse2 transform. On a fixed processor, only the faster transform is relevant. fma (i3/i5/i7 4th-8th gen) is expected to run at about the same speed, avx (2th-3th gen) to be faster. I didn't check 1th gen (sse4), it seems to be a major slowdown.

I purchased a 7th gen i5 with a particular focus on fma transform on x-Lake processors, but it will take time before this version is available.

In production, ver 3.3.3 is an improvement for n <= 20.
One may wonder whether 3.3.2 or 3.3.3 is the most appropriate for n=21.

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Message 112371 - Posted: 16 Dec 2017 | 13:33:25 UTC - in response to Message 112367.

"Generalized Fermat Prime Search benchmarks" are the most significant.


i.e. using the "-b2" option (this takes a little longer than the "-b" benchmark, but runs b values that are close to the current leading edge of the search.

For reference, the previous release binaries can be found here: https://app.assembla.com/spaces/genefer/subversion/source/HEAD/tags/3.3.2-7 (or from the download links posted above for the CPU versions).

Thanks for all the results so far!

- Iain

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3073428256125*2^1290000-1 is Prime!

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Message 112375 - Posted: 16 Dec 2017 | 15:54:01 UTC - in response to Message 112371.

"Generalized Fermat Prime Search benchmarks" are the most significant.


i.e. using the "-b2" option (this takes a little longer than the "-b" benchmark, but runs b values that are close to the current leading edge of the search.

For reference, the previous release binaries can be found here: https://app.assembla.com/spaces/genefer/subversion/source/HEAD/tags/3.3.2-7 (or from the download links posted above for the CPU versions).

Thanks for all the results so far!

- Iain

In that case, here are the -b2 results for the i5-3317U. Even with larger candidates, 3.3.3 seems to be faster.

Version 3.3.2:
Generalized Fermat Prime Search benchmarks 50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:26:00 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:46:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 7:05:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 7:51:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 28:00:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 117:00:00 900000^1048576+1 6243476 digits AVX (Intel) Estimated time: 60:40:00 130000^2097152+1 10724717 digits AVX (Intel) Estimated time: 313:00:00 100000^4194304+1 20971521 digits AVX (Intel) Estimated time: 1016:00:00


Version 3.3.3:
Generalized Fermat Prime Search benchmarks 75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:24:20 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:37:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 6:38:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 7:11:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 26:20:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 107:00:00 950000^1048576+1 6268098 digits AVX (Intel) Estimated time: 58:40:00 180000^2097152+1 11021106 digits AVX (Intel) Estimated time: 243:00:00 110000^4194304+1 21145134 digits AVX (Intel) Estimated time: 1066:00:00

as an aside, we could really use some spoiler tags.

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Message 112381 - Posted: 16 Dec 2017 | 19:55:02 UTC

On my Haswell (i7-4750HQ):

genefer 3.3.2-4 (Apple-x86/CPU/64-bit) ... 50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:21:30 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:27:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 5:46:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 6:24:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 23:20:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 93:10:00 900000^1048576+1 6243476 digits FMA3 Estimated time: 41:30:00 130000^2097152+1 10724717 digits FMA3 Estimated time: 147:00:00 100000^4194304+1 20971521 digits FMA3 Estimated time: 578:00:00 genefer 3.3.3 (Apple-x86/CPU/64-bit) ... 75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:19:50 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:19:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 5:21:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 5:51:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 21:40:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 85:40:00 950000^1048576+1 6268098 digits FMA3 Estimated time: 40:00:00 180000^2097152+1 11021106 digits FMA3 Estimated time: 150:00:00 110000^4194304+1 21145134 digits FMA3 Estimated time: 630:00:00


So clearly faster for n<=20, something of a slowdown for n>20 (although the b value is higher). Comparing the same b values, suggests something of a slowdown:

genefer 3.3.2-4 (Apple-x86/CPU/64-bit) ... 538452^1048576+1 Time: 6.95 ms/mul. Err: 0.1519 6009544 digits 440400^2097152+1 Time: 15.5 ms/mul. Err: 0.1484 11836006 digits 360204^4194304+1 Time: 32.1 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 75.4 ms/mul. Err: 0.1406 45879398 digits genefer 3.3.3 (Apple-x86/CPU/64-bit) ... 538452^1048576+1 Time: 7.46 ms/mul. Err: 0.1172 6009544 digits 440400^2097152+1 Time: 16.2 ms/mul. Err: 0.1172 11836006 digits 360204^4194304+1 Time: 35.5 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 78.6 ms/mul. Err: 0.1104 45879398 digits

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Message 112393 - Posted: 17 Dec 2017 | 14:59:37 UTC

New round of benches, using -b2 and with 2 more CPUs. TLDR: FMA3 seems inconsistent (I re-ran the tests manually and sometimes there was improvement, at others slowdown, and even about the same performance), x87 is always better, SSE2 is MUCH slower.

- i5 6600k -
Ver. 3.3.2

50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:15:30 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:03:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 4:12:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 4:40:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 16:40:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 67:30:00 900000^1048576+1 6243476 digits FMA3 Estimated time: 21:00:00 130000^2097152+1 10724717 digits FMA3 Estimated time: 83:20:00 100000^4194304+1 20971521 digits FMA3 Estimated time: 336:00:00


Ver. 3.3.3
75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:14:40 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 0:59:10 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 3:57:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 4:20:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 15:40:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 63:30:00 950000^1048576+1 6268098 digits FMA3 Estimated time: 21:50:00 180000^2097152+1 11021106 digits FMA3 Estimated time: 84:50:00 110000^4194304+1 21145134 digits FMA3 Estimated time: 357:00:00



- i5 4590 -
Ver 3.3.2
50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:18:50 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:16:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 5:04:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 5:38:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 20:10:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 81:50:00 900000^1048576+1 6243476 digits FMA3 Estimated time: 31:10:00 130000^2097152+1 10724717 digits FMA3 Estimated time: 129:00:00 100000^4194304+1 20971521 digits FMA3 Estimated time: 500:00:00


Ver 3.3.3
75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:17:30 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:10:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 4:41:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 5:09:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 18:40:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 76:50:00 950000^1048576+1 6268098 digits FMA3 Estimated time: 33:00:00 180000^2097152+1 11021106 digits FMA3 Estimated time: 125:00:00 110000^4194304+1 21145134 digits FMA3 Estimated time: 556:00:00


- Pentium Dual Core E2180 -
Ver 3.3.2
50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:30:40 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 2:12:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 9:02:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 10:00:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 39:40:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 158:00:00 900000^1048576+1 6243476 digits SSE2 Estimated time: 164:00:00 130000^2097152+1 10724717 digits SSE2 Estimated time: 571:00:00 100000^4194304+1 20971521 digits SSE2 Estimated time: 2897:00:00



Ver 3.3.3
75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:29:00 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 2:04:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 8:54:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 9:50:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 39:50:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 160:00:00 950000^1048576+1 6268098 digits SSE2 Estimated time: 245:00:00 180000^2097152+1 11021106 digits SSE2 Estimated time: 968:00:00 110000^4194304+1 21145134 digits SSE2 Estimated time: 3940:00:00

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Message 112394 - Posted: 17 Dec 2017 | 15:48:48 UTC

I'm going to test the new Genefer on 5 different CPUs in a moment, but first this:

I:\GFN>genefer_windows64-3.3.2.exe -v genefer 3.3.2-4 (Windows/CPU/64-bit) Copyright 2001-2017, Yves Gallot Copyright 2009, Mark Rodenkirch, David Underbakke Copyright 2010-2012, Shoichiro Yamada, Ken Brazier Copyright 2011-2014, Michael Goetz, Ronald Schneider Copyright 2011-2017, Iain Bethune Genefer is free source code, under the MIT license. Supported transform implementations: fma3 avx sse4 sse2 f64 x87 I:\GFN>genefer_windows64-3.3.3.exe -v genefer 3.3.3 (Windows/CPU/64-bit) Copyright 2001-2017, Yves Gallot Copyright 2009, Mark Rodenkirch, David Underbakke Copyright 2010-2012, Shoichiro Yamada, Ken Brazier Copyright 2011-2014, Michael Goetz, Ronald Schneider Copyright 2011-2017, Iain Bethune Genefer is free source code, under the MIT license. Supported transform implementations: fma3 avx sse4 sse2 x87


The new Genefer is missing the old f64 transform. Does this mean the Genefer will no longer run on old CPUs like my recently defunct Sempron? If so, I need to know about this because it affects the server configuration. My strong preference would be for Genefer to continue to support the f64 transform; removal makes things a lot more complex on the server side.
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Message 112397 - Posted: 17 Dec 2017 | 16:52:05 UTC

On second thought, I just noticed that the -b2 benchmarks were modified to test different values in 3.3.3 -- so comparing these benchmarks in the old and new versions isn't a good comparison.
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Message 112403 - Posted: 17 Dec 2017 | 21:01:32 UTC - in response to Message 112394.

The new Genefer is missing the old f64 transform. Does this mean the Genefer will no longer run on old CPUs like my recently defunct Sempron?

Genefer 3.3.3 64-bit => fma3 avx sse4 sse2 x87
Genefer 3.3.3 32-bit => fma3 avx sse4 sse2 x87 f64

K7 Sempron is a 32-bit processor without SSE2 but K8 Sempron is a 64-bit processor with SSE2.

f64 was removed from the 64-bit version because the SSE2 is included in AMD64 specification.

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Message 112405 - Posted: 17 Dec 2017 | 21:28:14 UTC - in response to Message 112393.
Last modified: 17 Dec 2017 | 21:29:42 UTC

SSE2 is MUCH slower.

I'm working on SSE2/SSE4 code.
The theory is that AVX and SSE2/SSE4 code are similar and one 256-bit AVX instruction is replaced by two 128-bit SSE2 instructions; but gcc is foolish and generates a lot of unnecessary code in the second case. An unexpected and unusual occurrence that should be bypassed!

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Message 112407 - Posted: 17 Dec 2017 | 21:58:55 UTC - in response to Message 112403.

The new Genefer is missing the old f64 transform. Does this mean the Genefer will no longer run on old CPUs like my recently defunct Sempron?

Genefer 3.3.3 64-bit => fma3 avx sse4 sse2 x87
Genefer 3.3.3 32-bit => fma3 avx sse4 sse2 x87 f64

K7 Sempron is a 32-bit processor without SSE2 but K8 Sempron is a 64-bit processor with SSE2.

f64 was removed from the 64-bit version because the SSE2 is included in AMD64 specification.


Gotcha -- the 32 bit version still supports f64. All should be good then. Thanks for clearing that up for me.
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 112426 - Posted: 18 Dec 2017 | 6:31:18 UTC

i7-5820K (Haswell-E) @ 3.4 GHz (slight o/c, nominal is 3.3 GHz)

genefer 3.3.2-4 (Linux/CPU/64-bit) ... 50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:18:30 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:15:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 4:59:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 5:32:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 19:30:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 79:00:00 900000^1048576+1 6243476 digits FMA3 Estimated time: 28:30:00 130000^2097152+1 10724717 digits FMA3 Estimated time: 117:00:00 100000^4194304+1 20971521 digits FMA3 Estimated time: 478:00:00

genefer 3.3.3 (Linux/CPU/64-bit) ... 75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:17:10 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:09:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 4:41:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 5:07:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 18:10:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 73:40:00 950000^1048576+1 6268098 digits FMA3 Estimated time: 30:40:00 180000^2097152+1 11021106 digits FMA3 Estimated time: 118:00:00 110000^4194304+1 21145134 digits FMA3 Estimated time: 504:00:00

Iain BethuneProject donor
Honorary cruncher
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Joined: 28 Jan 09
Posts: 1588
ID: 34775
Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 112496 - Posted: 19 Dec 2017 | 9:45:42 UTC

Updated binaries (version 3.3.3-1) are now available from https://app.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin, which address the performance issues of the sse2/sse4 transforms.

- Iain
____________
Twitter: IainBethune
Proud member of team "Aggie The Pew". Go Aggie!
3073428256125*2^1290000-1 is Prime!

Profile Rafael
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Joined: 22 Oct 14
Posts: 906
ID: 370496
Credit: 468,117,442
RAC: 218,653
321 LLR Jade: Earned 10,000,000 credits (10,008,611)Cullen LLR Jade: Earned 10,000,000 credits (10,005,009)ESP LLR Jade: Earned 10,000,000 credits (10,041,747)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,000,820)PPS LLR Jade: Earned 10,000,000 credits (10,020,730)PSP LLR Jade: Earned 10,000,000 credits (10,049,767)SoB LLR Jade: Earned 10,000,000 credits (18,023,850)SR5 LLR Jade: Earned 10,000,000 credits (10,003,746)SGS LLR Jade: Earned 10,000,000 credits (10,002,215)TRP LLR Jade: Earned 10,000,000 credits (10,011,903)Woodall LLR Jade: Earned 10,000,000 credits (10,076,850)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,033,828)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,037,204)PPS Sieve Jade: Earned 10,000,000 credits (10,305,147)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Emerald: Earned 50,000,000 credits (50,015,953)GFN Sapphire: Earned 20,000,000 credits (43,975,850)WW Emerald: Earned 50,000,000 credits (50,712,000)PSA Double Bronze: Earned 100,000,000 credits (170,761,999)
Message 112502 - Posted: 19 Dec 2017 | 12:22:28 UTC - in response to Message 112365.
Last modified: 19 Dec 2017 | 12:28:37 UTC

Testing the new 3.3.3-1 SSE4 and SSE2 (TL:DR better than previous 3.3.3 release, but still not worth it over 3.3.2).

First, the i5 6600k Skylake. I had to go with the -b option, given that -b2 doesn't use the SSE transforms. Both SSE4 and SSE2 saw major improvements, but are still slightly slower than 3.3.2.

For the i5 4590 Haswell, comparing 3.3.3-1 vs 3.3.2, performance is just about the same for SSE4, with a marginal tip towards the slower side. SSE2 is slower; not by that much, but you can definitely notice it. Regardless, there's no reason to use the new version, other than the fact that lower Err. values could allow a faster transform to be used during transition periods.

I won't be able to test my LGA775 pentium next year, but to make up for it, I'm adding benchmarks for an i3 530, which is SSE4. A full suit of benchmarks is available below, with both -b2 and -b options tested. Across the board, 3.3.3-1 is noticeably slower than 3.3.2



- i5 6600k -

SSE4: slight slowdowns (12 vs 13)
Ver. 3.3.2
4019150^1024+1 Time: 4.35 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 8.93 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 19.1 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 39.3 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 85.4 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 175 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 378 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 774 us/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 1.69 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 3.47 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 7.61 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 15.6 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 34.3 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 69.6 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 154 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 13.


Ver. 3.3.3-1
4019150^1024+1 Time: 4.84 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 9.61 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 20.3 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 42.4 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 89.8 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 189 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 400 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 837 us/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 1.77 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 3.7 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 7.86 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 16.5 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 34.9 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 73.4 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 155 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 12.



SSE2: slight slowdowns (10 vs 11)
Ver 3.3.2
4019150^1024+1 Time: 5.26 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 11.4 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 22.3 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 48.3 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 97.3 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 210 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 425 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 912 us/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 1.88 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 4.01 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 8.36 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 17.8 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 37.4 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 78.5 ms/mul. Err: 0.1406 45879398 digits Genefer Mark = 11.


Ver. 3.3.3
4019150^1024+1 Time: 6.55 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 12.6 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 26.3 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 54 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 113 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 234 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 493 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.02 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 2.16 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 4.44 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 9.42 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 19.6 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 41.1 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 85.1 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 180 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 10.



- i5 4590 -
SSE4: just about the same thing
Ver 3.3.2
4019150^1024+1 Time: 5.66 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 11.9 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 25.4 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 53.5 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 114 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 240 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 511 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.06 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 2.27 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 4.86 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 10.4 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 21.4 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 47.7 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 103 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 219 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 9.


Ver. 3.3.3-1
4019150^1024+1 Time: 6.58 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 12.2 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 26.4 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 55.3 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 119 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 250 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 535 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.11 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 2.37 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 4.94 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 10.7 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 22.3 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 48.4 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 102 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 220 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 9.



SSE2: slight slowdowns
Ver 3.3.2
4019150^1024+1 Time: 7.16 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 14.3 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 31.4 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 62.5 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 138 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 275 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 604 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.21 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 2.64 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 5.35 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 11.9 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 23.8 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 53.7 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 107 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 243 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 8.


Ver 3.3.3-1
4019150^1024+1 Time: 8.18 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 16.5 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 33.9 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 70.3 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 149 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 309 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 652 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.35 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 2.84 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 5.88 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 12.5 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 26.2 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 56 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 118 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 251 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 8.


- i3 530 -
-b2 benchmarks
Ver. 3.3.2
50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:25:40 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:47:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 6:37:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 7:18:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 26:10:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 109:00:00 900000^1048576+1 6243476 digits SSE4 Estimated time: 85:00:00 130000^2097152+1 10724717 digits SSE4 Estimated time: 298:00:00 100000^4194304+1 20971521 digits SSE4 Estimated time: 1332:00:00


Ver. 3.3.3-1
75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:24:10 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:38:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 6:19:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 6:52:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 25:00:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 100:00:00 950000^1048576+1 6268098 digits SSE4 Estimated time: 94:00:00 180000^2097152+1 11021106 digits SSE4 Estimated time: 352:00:00 110000^4194304+1 21145134 digits SSE4 Estimated time: 1461:00:00


SSE4: noticeable slowdowns
Ver. 3.3.2
4019150^1024+1 Time: 7.52 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 15.7 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 34.9 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 71.1 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 155 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 324 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 700 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.44 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 3.14 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 6.61 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 14.7 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 30.1 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 69 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 140 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 318 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 6.


Ver. 3.3.3-1
4019150^1024+1 Time: 8.14 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 17.3 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 37.6 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 80.9 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 175 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 371 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 796 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.67 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 3.56 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 7.65 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 16.3 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 34.7 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 75 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 160 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 343 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 6.


SSE2: noticeable slowdowns
Ver. 3.3.2
4019150^1024+1 Time: 11.8 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 22.8 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 51.3 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 99.2 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 224 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 435 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 969 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.89 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 4.22 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 8.41 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 19.1 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 37.3 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 86.5 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 168 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 386 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 5.


Ver. 3.3.3-1
4019150^1024+1 Time: 13 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 26.3 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 55.1 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 116 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 243 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 510 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 1.07 ms/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 2.22 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 4.67 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 9.75 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 20.6 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 43.4 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 92.4 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 196 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 412 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 5.

Profile Michael GoetzProject donor
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Posts: 13785
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 112503 - Posted: 19 Dec 2017 | 13:13:01 UTC - in response to Message 112502.

First, the i5 6600k Skylake. I had to go with the -b option, given that -b2 doesn't use the SSE transforms. Both SSE4 and SSE2 saw major improvements, but are still slightly slower than 3.3.2.


Note: As currently written, it is impossible to use -b2 to compare timings because 3.3.2 and 3.3.3 use different numbers in the -b2 benchmark.

You will always get somewhat longer times in the 3.3.3 -b2 benchmarks because it's testing larger numbers. For x87 tests, the code improvement is substantial enough that it exceeds the extra time needed to run more iterations of the calculation. But with other transforms, you see a slowdown, but it's unclear if that's because the transform is actually slower or if you're running a larger number.

I recommend using -b for comparing 3.3.2 vs 3.3.3.
____________
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Profile GrebulonerProject donor
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Joined: 2 Nov 09
Posts: 441
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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 7 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (27,589,187)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (46,834,631)PPS LLR Emerald: Earned 50,000,000 credits (61,756,838)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Emerald: Earned 50,000,000 credits (50,873,282)SR5 LLR Sapphire: Earned 20,000,000 credits (23,807,284)SGS LLR Sapphire: Earned 20,000,000 credits (21,819,843)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (502,006,216)GFN Double Silver: Earned 200,000,000 credits (278,220,852)WW Double Silver: Earned 200,000,000 credits (473,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 112511 - Posted: 19 Dec 2017 | 16:57:18 UTC

Ran new 3.3.3-1 benches on my X5675:

3.3.2/SSE2:

538452^1048576+1 Time: 15.6 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 31.2 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 69.9 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 137 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 329 ms/mul. Err: 0.1250 90294174 digits


3.3.3-1/SSE2:
538452^1048576+1 Time: 17.1 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 36 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 76.3 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 163 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 348 ms/mul. Err: 0.1094 90294174 digits


3.3.2/SSE4:
538452^1048576+1 Time: 12.1 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 25.1 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 55.9 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 114 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 266 ms/mul. Err: 0.1250 90294174 digits


3.3.3-1/SSE4:
538452^1048576+1 Time: 13.5 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 28.8 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 62.3 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 135 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 292 ms/mul. Err: 0.1094 90294174 digits


Times are still >10% longer over 3.3.2 in 3.3.3-1, but compared to 3.3.3-0, we're getting closer.
____________
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Iain BethuneProject donor
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113494 - Posted: 16 Jan 2018 | 22:14:55 UTC
Last modified: 28 Jan 2018 | 21:50:10 UTC

Hi all,

Genefer 3.3.3 is now ready for testing. The test programme is quite comprehensive as we need to check changes (quite substantial) to the CPU transforms, and some minor changes to the OCL transforms.

Binaries are available from SVN:

Windows: https://www.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin/windows

Linux: https://www.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin/linux

Mac: https://www.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin/mac

These binaries are version "3.3.3-2", due to some performance tweaks which had to be made.

There is a full list of tests, with some instructions for how and what to run on a google sheet:

https://docs.google.com/spreadsheets/d/13K5NKoywrlE4UtDZTM0ws8mMoz6y11b7kR4hFbehnBo/edit?usp=sharing

There are a large set of manual tests, for n=16,17 and n=22 (which will take a long time, unfortunately!), and also some BOINC tests to run under app_info.xml. Please check carefully as some tests require specifying the transform to use (via the -x option), and some leave genefer free to select the appropriate transform.

Please post into this thread if you want to reserve tests, and if you have results and/or questions. I will try to keep the thread clean by hiding posts when I update the google sheet. Manual credit will be awarded for the standalone tests.

Thanks in advance for the help - the more people contribute, the sooner we can start using the new apps.

Cheers

- Iain
____________
Twitter: IainBethune
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3073428256125*2^1290000-1 is Prime!

Profile Michael GoetzProject donor
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Joined: 21 Jan 10
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 113899 - Posted: 28 Jan 2018 | 22:08:04 UTC

I want to point out that one significant change to GeneferOCL is that we're reversing a change we made back in 2014.

Originally, GeneferCUDA ran at normal priority. Most BOINC programs run at idle priority so as not to interfere with whatever else the computer is doing. But a GPU program should run at normal priority so that the CPU can keep the GPU running full speed.

When Genefer OCL first came out, because of a driver "feature" the CPU portion of the program could consume a full CPU core, so we had to lower the priority of GeneferOCL.

Eventually that driver 'feature' was fixed, or we found a way around it, and as a result GeneferOCL no longer uses a whole CPU core.

Now, with 3.3.3, we're able to once again raise the priority of GeneferOCL. As a result, the GPU doesn't get starved even if you're running LLR on all cores. You no longer need to keep a core free for the GPU. The GPU program takes precedence over the other BOINC tasks.

Note that the GPU versions of AP27 and PPS-Sieve already work this way, so you don't need to keep a core free for them either.
____________
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Joined: 2 Nov 09
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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 7 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (27,589,187)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (46,834,631)PPS LLR Emerald: Earned 50,000,000 credits (61,756,838)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Emerald: Earned 50,000,000 credits (50,873,282)SR5 LLR Sapphire: Earned 20,000,000 credits (23,807,284)SGS LLR Sapphire: Earned 20,000,000 credits (21,819,843)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (502,006,216)GFN Double Silver: Earned 200,000,000 credits (278,220,852)WW Double Silver: Earned 200,000,000 credits (473,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 113900 - Posted: 28 Jan 2018 | 23:17:02 UTC

It's been a long time since the last update to 3.3.3, so I definitely want to ask: has the performance regression of SSE2/4 been reversed?

I would like to reserve/do the Windows non-boinc testing for 64 bit CPU and NVIDIA OCL through the n17 tests, after that I'll see about the n22 tests.
____________
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113907 - Posted: 29 Jan 2018 | 2:20:35 UTC

geneferocl_linux64 starts 8 threads, but only the main one gets essentially all the CPU time (another one amassed a total of 0.10 seconds by the time the main thread had 10.5 minutes, and a third got 0.01 seconds). Is this normal?

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Joined: 16 Feb 10
Posts: 1002
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Credit: 878,663,462
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113910 - Posted: 29 Jan 2018 | 3:53:01 UTC

D48, D50, D52, D54, D56; note the failure and successful completion from checkpoint on D56

geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:09:16
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0004) (time = 0:09:20) 21:01:23
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL2

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL2 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:13:50
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:13:43) 21:15:06
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL3

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL3 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:11:40
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:11:49) 21:26:55
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL4

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL4 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:08:03
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:08:06) 21:35:01
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL5

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:09:34
maxErr exceeded for 52186^131072+1, 1.0000 > 0.4500
Errors occurred for all available transform implementations

reran OCL5, it picked up from the last checkpoint
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL5

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Resuming 52186^131072+1 from a checkpoint (2054077 iterations left)
Estimated time for 52186^131072+1 is 0:09:30
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:09:28) 21:47:16

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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113919 - Posted: 29 Jan 2018 | 14:29:31 UTC - in response to Message 113900.

It's been a long time since the last update to 3.3.3, so I definitely want to ask: has the performance regression of SSE2/4 been reversed?


Yes, SSE2/4 should now give roughly the same performance as previous releases.

- Iain


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3073428256125*2^1290000-1 is Prime!

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Posts: 1588
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Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113920 - Posted: 29 Jan 2018 | 14:37:22 UTC - in response to Message 113906.

C10; did not switch to X87 transform


That's fine - the b limits of the 'fast' transforms are increased a little.
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113921 - Posted: 29 Jan 2018 | 14:45:13 UTC - in response to Message 113916.

B10 reserved
...
EDIT: This was completed before the spreadsheet changed. I will run with the other transforms now



Sorry - I have updated the spreadsheet now. Please check posts in the thread to see if any tests are outstanding that are not yet in the spreadsheet.

Cheers

- Iain
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3073428256125*2^1290000-1 is Prime!

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Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113923 - Posted: 29 Jan 2018 | 15:02:25 UTC - in response to Message 113910.


geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL5

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Starting initialization...
Initialization complete (0.113 seconds).
Testing 52186^131072+1... 2054077 steps to go
Estimated time for 52186^131072+1 is 0:09:34
maxErr exceeded for 52186^131072+1, 1.0000 > 0.4500
Errors occurred for all available transform implementations

reran OCL5, it picked up from the last checkpoint
geneferocl 3.3.3-2 (Linux/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_linux64 -q 52186^131072+1 -x OCL5

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'NVIDIA CUDA', device 'GeForce GTX 760', vendor 'NVIDIA Corporation', version 'OpenCL 1.2 CUDA' and driver '384.111'.
6 computeUnits @ 1137MHz, memSize=1996MB, cacheSize=96kB, cacheLineSize=128B, localMemSize=48kB, maxWorkGroupSize=1024.
Resuming 52186^131072+1 from a checkpoint (2054077 iterations left)
Estimated time for 52186^131072+1 is 0:09:30
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:09:28) 21:47:16


This is strange. b=52186 is well below the b limit, and for OCL5 the calculation should be exact (err=0.0000). Does this recreate on your hardware? It seems to run fine for Grebuloner and Van Zimmerman, and also I tested on my own linux system with a Tesla K40m. If not I can only think it is either a hardware glitch, or a (very rare) software bug. In either case the error correction worked and it restarted from the last known good checkpoint...
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3073428256125*2^1290000-1 is Prime!

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Joined: 28 Jan 09
Posts: 1588
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Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113924 - Posted: 29 Jan 2018 | 15:08:36 UTC - in response to Message 113907.

geneferocl_linux64 starts 8 threads, but only the main one gets essentially all the CPU time (another one amassed a total of 0.10 seconds by the time the main thread had 10.5 minutes, and a third got 0.01 seconds). Is this normal?


No idea - but I'm not surprised it spawns some additional threads (presumably in the OCL/driver stack, rather than the user code).

- Iain
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113926 - Posted: 29 Jan 2018 | 16:14:29 UTC - in response to Message 113923.
Last modified: 29 Jan 2018 | 16:14:47 UTC


This is strange. b=52186 is well below the b limit, and for OCL5 the calculation should be exact (err=0.0000). Does this recreate on your hardware? It seems to run fine for Grebuloner and Van Zimmerman, and also I tested on my own linux system with a Tesla K40m. If not I can only think it is either a hardware glitch, or a (very rare) software bug. In either case the error correction worked and it restarted from the last known good checkpoint...

This error happened the second time I ran those 5 tests OCL ... OCL5 using a bash 'for' loop.
The first set completed normally but I overwrote the output file accidentally so I ran it again.
On the second set, the first 4 tests completed successfully and the glitch happened within the first 10 seconds of starting OCL5, so I started that test manually and it picked up the checkpoint.

The GPU is factory overclocked but this is hardly ever an issue since I set the fan speed at 100%.

I was getting daily system crashes before the New Year Challenge while I was trying XMP memory speed, so I returned to normal memory speed and the system has been stable ever since.

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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113929 - Posted: 29 Jan 2018 | 18:44:52 UTC

There's something slightly fishy given that the error value was exacly 1.000.

Is this the high limit of the range of error values?

Might this indicate some very early failure before the calculation has propagated and averaged down?

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 113930 - Posted: 29 Jan 2018 | 19:25:26 UTC - in response to Message 113929.

There's something slightly fishy given that the error value was exacly 1.000.

Is this the high limit of the range of error values?

Might this indicate some very early failure before the calculation has propagated and averaged down?


You get an error of 1.0 when something goes wrong with the any of the fixed point transforms, i.e., anything that's not the original OCL. Since it's not using floating point, any error it detects will always be an integer.

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Found 2 primes in the 2018 Tour de PrimesESP LLR Silver: Earned 100,000 credits (203,247)PPS LLR Turquoise: Earned 5,000,000 credits (8,314,588)SoB LLR Double Bronze: Earned 100,000,000 credits (104,826,219)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (65,538)PPS Sieve Sapphire: Earned 20,000,000 credits (20,283,307)AP 26/27 Sapphire: Earned 20,000,000 credits (28,345,473)GFN Bronze: Earned 10,000 credits (41,179)
Message 113935 - Posted: 29 Jan 2018 | 21:29:29 UTC

Bit of a toaster of a datapoint compared to most things, but on my i7-4710MQ (2.5GHz) laptop (w7x64),

old:

Generalized Fermat Prime Search benchmarks 50000000^32768+1 252280 digits x87 (80-bit) Estimated time: 0:28:30 25000000^65536+1 484832 digits x87 (80-bit) Estimated time: 1:53:00 8000000^131072+1 904802 digits x87 (80-bit) Estimated time: 7:25:00 46000000^131072+1 1004373 digits x87 (80-bit) Estimated time: 8:00:00 2800000^262144+1 1690084 digits x87 (80-bit) Estimated time: 28:40:00 1500000^524288+1 3238051 digits x87 (80-bit) Estimated time: 115:00:00 900000^1048576+1 6243476 digits FMA3 Estimated time: 43:40:00 130000^2097152+1 10724717 digits FMA3 Estimated time: 184:00:00 100000^4194304+1 20971521 digits FMA3 Estimated time: 729:00:00


new:

Generalized Fermat Prime Search benchmarks 75000000^32768+1 258051 digits x87 (80-bit) Estimated time: 0:25:10 27000000^65536+1 487022 digits x87 (80-bit) Estimated time: 1:40:00 10000000^131072+1 917505 digits x87 (80-bit) Estimated time: 6:58:00 48000000^131072+1 1006796 digits x87 (80-bit) Estimated time: 8:05:00 3600000^262144+1 1718696 digits x87 (80-bit) Estimated time: 28:20:00 1700000^524288+1 3266550 digits x87 (80-bit) Estimated time: 115:00:00 950000^1048576+1 6268098 digits FMA3 Estimated time: 47:50:00 180000^2097152+1 11021106 digits FMA3 Estimated time: 182:00:00 110000^4194304+1 21145134 digits FMA3 Estimated time: 833:00:00



x87:

old:

10980642^32+1 Time: 761 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 1.69 us/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 3.8 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 8.46 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 18.7 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 40.4 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 89.4 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 194 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 416 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 886 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.9 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 4.06 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 8.67 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 18.3 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 39.2 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 85.7 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 205 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 433 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 892 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.64 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 1.


new:

10980642^32+1 Time: 643 ns/mul. Err: 0.0001 226 digits 8981090^64+1 Time: 1.43 us/mul. Err: 0.0001 446 digits 7345652^128+1 Time: 3.3 us/mul. Err: 0.0001 879 digits 6008024^256+1 Time: 7.42 us/mul. Err: 0.0001 1736 digits 4913974^512+1 Time: 16.8 us/mul. Err: 0.0001 3427 digits 4019150^1024+1 Time: 38.5 us/mul. Err: 0.0001 6763 digits 3287270^2048+1 Time: 80.7 us/mul. Err: 0.0001 13347 digits 2688666^4096+1 Time: 175 us/mul. Err: 0.0001 26336 digits 2199064^8192+1 Time: 386 us/mul. Err: 0.0001 51956 digits 1798620^16384+1 Time: 823 us/mul. Err: 0.0001 102481 digits 1471094^32768+1 Time: 1.99 ms/mul. Err: 0.0001 202102 digits 1203210^65536+1 Time: 4.53 ms/mul. Err: 0.0001 398482 digits 984108^131072+1 Time: 9.57 ms/mul. Err: 0.0001 785521 digits 804904^262144+1 Time: 20.9 ms/mul. Err: 0.0001 1548156 digits 658332^524288+1 Time: 43.6 ms/mul. Err: 0.0001 3050541 digits 538452^1048576+1 Time: 93.2 ms/mul. Err: 0.0001 6009544 digits 440400^2097152+1 Time: 175 ms/mul. Err: 0.0001 11836006 digits 360204^4194304+1 Time: 347 ms/mul. Err: 0.0001 23305854 digits 294612^8388608+1 Time: 702 ms/mul. Err: 0.0001 45879398 digits 240964^16777216+1 Time: 1.49 s/mul. Err: 0.0001 90294174 digits Genefer Mark = 1.


sse4:

old:

10980642^32+1 Time: 184 ns/mul. Err: 0.1250 226 digits 8981090^64+1 Time: 485 ns/mul. Err: 0.1875 446 digits 7345652^128+1 Time: 1.1 us/mul. Err: 0.1562 879 digits 6008024^256+1 Time: 1.83 us/mul. Err: 0.1562 1736 digits 4913974^512+1 Time: 3.94 us/mul. Err: 0.1562 3427 digits 4019150^1024+1 Time: 7.97 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 17 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 36.2 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 77.5 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 165 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 346 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 724 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.58 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 3.39 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 7.15 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 14.9 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 30.8 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 66.6 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 132 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 296 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 6.


new:

4019150^1024+1 Time: 8.62 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 17.8 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 38.6 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 80 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 172 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 354 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 754 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.59 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 3.44 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 7.07 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 14.9 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 30.9 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 69.4 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 140 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 293 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 6.



sse2:

old:

10980642^32+1 Time: 255 ns/mul. Err: 0.1250 226 digits 8981090^64+1 Time: 672 ns/mul. Err: 0.1875 446 digits 7345652^128+1 Time: 1.36 us/mul. Err: 0.1562 879 digits 6008024^256+1 Time: 2.34 us/mul. Err: 0.1562 1736 digits 4913974^512+1 Time: 4.77 us/mul. Err: 0.1562 3427 digits 4019150^1024+1 Time: 10 us/mul. Err: 0.1562 6763 digits 3287270^2048+1 Time: 20 us/mul. Err: 0.1875 13347 digits 2688666^4096+1 Time: 44.1 us/mul. Err: 0.1875 26336 digits 2199064^8192+1 Time: 88.2 us/mul. Err: 0.1875 51956 digits 1798620^16384+1 Time: 197 us/mul. Err: 0.1719 102481 digits 1471094^32768+1 Time: 394 us/mul. Err: 0.1797 202102 digits 1203210^65536+1 Time: 910 us/mul. Err: 0.1719 398482 digits 984108^131072+1 Time: 1.76 ms/mul. Err: 0.1562 785521 digits 804904^262144+1 Time: 3.86 ms/mul. Err: 0.1562 1548156 digits 658332^524288+1 Time: 7.93 ms/mul. Err: 0.1562 3050541 digits 538452^1048576+1 Time: 17 ms/mul. Err: 0.1484 6009544 digits 440400^2097152+1 Time: 34.3 ms/mul. Err: 0.1562 11836006 digits 360204^4194304+1 Time: 75.7 ms/mul. Err: 0.1406 23305854 digits 294612^8388608+1 Time: 155 ms/mul. Err: 0.1406 45879398 digits 240964^16777216+1 Time: 346 ms/mul. Err: 0.1250 90294174 digits Genefer Mark = 6.


new:

4019150^1024+1 Time: 11.1 us/mul. Err: 0.1406 6763 digits 3287270^2048+1 Time: 22.5 us/mul. Err: 0.1562 13347 digits 2688666^4096+1 Time: 47.7 us/mul. Err: 0.1562 26336 digits 2199064^8192+1 Time: 98.9 us/mul. Err: 0.1562 51956 digits 1798620^16384+1 Time: 212 us/mul. Err: 0.1562 102481 digits 1471094^32768+1 Time: 436 us/mul. Err: 0.1562 202102 digits 1203210^65536+1 Time: 952 us/mul. Err: 0.1328 398482 digits 984108^131072+1 Time: 1.98 ms/mul. Err: 0.1289 785521 digits 804904^262144+1 Time: 4.14 ms/mul. Err: 0.1406 1548156 digits 658332^524288+1 Time: 8.66 ms/mul. Err: 0.1250 3050541 digits 538452^1048576+1 Time: 18.1 ms/mul. Err: 0.1250 6009544 digits 440400^2097152+1 Time: 38.5 ms/mul. Err: 0.1250 11836006 digits 360204^4194304+1 Time: 79.5 ms/mul. Err: 0.1094 23305854 digits 294612^8388608+1 Time: 169 ms/mul. Err: 0.1250 45879398 digits 240964^16777216+1 Time: 354 ms/mul. Err: 0.1094 90294174 digits Genefer Mark = 5.

Van ZimmermanProject donor
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Credit: 6,315,554,899
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Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,148,632)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,703,540,875)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 113937 - Posted: 29 Jan 2018 | 21:52:52 UTC

F74 & F76 are in progress, with G74 and G76 starting shortly.

Iain BethuneProject donor
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Posts: 1588
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Credit: 194,056,043
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113939 - Posted: 29 Jan 2018 | 22:52:26 UTC

Please note there are new Windows CPU builds (3.3.3-3), which fix a minor issue with priority when running standalone (i.e. BOINC is not affected). Anyone who is running the CPU code on Windows - please go back to https://app.assembla.com/spaces/genefer/subversion/source/HEAD/trunk/bin/windows and grab the updated binary!

Thanks for all the testing so far!

Cheers

- Iain
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3073428256125*2^1290000-1 is Prime!

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Joined: 28 Jan 09
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Credit: 194,056,043
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113940 - Posted: 29 Jan 2018 | 22:56:30 UTC - in response to Message 113935.

Bit of a toaster of a datapoint compared to most things, but on my i7-4710MQ (2.5GHz) laptop (w7x64),


These results confirm pretty much what everyone else has seen - a decent speedup for the x87 transform, and roughly the same (or slightly slower, depending on hardware and n) performance for the vector transforms. Note that the b values used for the "Generalized Fermat Prime Search benchmarks" are increased in 3.3.3 so you can't directly compare. The b limit for the vector transforms are slightly increased - which might bring some tests back into range.

- Iain

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3073428256125*2^1290000-1 is Prime!

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Credit: 6,315,554,899
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Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,148,632)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,703,540,875)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 113941 - Posted: 29 Jan 2018 | 23:08:53 UTC

G48-G56:

OCL5 Returned an error, and it looks like it isn't the first time it has occurred. I attempted to re-run it, and got the same result.

dora:test vzimmerman$ ./test.sh
geneferocl 3.3.3-2 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_macintel -q 52186^131072+1 -x OCL

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL transform
Running on platform 'Apple', device 'AMD Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.117 seconds).
Estimated time for 52186^131072+1 is 0:07:18
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0004) (time = 0:07:20) 16:54:56
geneferocl 3.3.3-2 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_macintel -q 52186^131072+1 -x OCL2

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL2 transform
Running on platform 'Apple', device 'AMD Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.117 seconds).
Estimated time for 52186^131072+1 is 0:13:00
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:13:01) 17:07:57
geneferocl 3.3.3-2 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_macintel -q 52186^131072+1 -x OCL3

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL3 transform
Running on platform 'Apple', device 'AMD Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.117 seconds).
Estimated time for 52186^131072+1 is 0:10:50
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:11:00) 17:18:57
geneferocl 3.3.3-2 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_macintel -q 52186^131072+1 -x OCL4

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL4 transform
Running on platform 'Apple', device 'AMD Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.117 seconds).
Estimated time for 52186^131072+1 is 0:09:19
52186^131072+1 is composite. (RES=1b196d6c0e4d778f) (618340 digits) (err = 0.0000) (time = 0:09:21) 17:28:18
geneferocl 3.3.3-2 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2018, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2018, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./geneferocl_macintel -q 52186^131072+1 -x OCL5

Normal priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'Apple', device 'AMD Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.117 seconds).
Estimated time for 52186^131072+1 is 0:10:10
Testing 52186^131072+1... 1855860 steps to go (0:09:18 remaining)
maxErr exceeded for 52186^131072+1, 1.0000 > 0.4500
Errors occurred for all available transform implementations

Iain BethuneProject donor
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Joined: 28 Jan 09
Posts: 1588
ID: 34775
Credit: 194,056,043
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 113942 - Posted: 29 Jan 2018 | 23:19:00 UTC - in response to Message 113941.

G48-G56:

OCL5 Returned an error, and it looks like it isn't the first time it has occurred. I attempted to re-run it, and got the same result.


Would be good if you could try running this test several times - and also with the previous genefer release (current stock PrimeGrid app will do). These does seem to be an issue here that we need to understand!
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3073428256125*2^1290000-1 is Prime!

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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113944 - Posted: 30 Jan 2018 | 1:38:36 UTC - in response to Message 113942.

G48-G56:

OCL5 Returned an error, and it looks like it isn't the first time it has occurred. I attempted to re-run it, and got the same result.


Would be good if you could try running this test several times - and also with the previous genefer release (current stock PrimeGrid app will do). These does seem to be an issue here that we need to understand!

Don't forget to remove the checkpoint file between tests, otherwise they are not independent.

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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 7 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (27,589,187)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (46,834,631)PPS LLR Emerald: Earned 50,000,000 credits (61,756,838)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Emerald: Earned 50,000,000 credits (50,873,282)SR5 LLR Sapphire: Earned 20,000,000 credits (23,807,284)SGS LLR Sapphire: Earned 20,000,000 credits (21,819,843)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (502,006,216)GFN Double Silver: Earned 200,000,000 credits (278,220,852)WW Double Silver: Earned 200,000,000 credits (473,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 113945 - Posted: 30 Jan 2018 | 4:56:23 UTC
Last modified: 30 Jan 2018 | 5:19:00 UTC

Retesting the Win64 CPU tests on 3.3.3-3.

I am attempting to run the 32 bit Win CPU tests. It's not a pure environment (x64 Core 2 Duo on x86 Win 7), and I'm turning this laptop on for the first time in about 3 years. If it fails, would you accept a virtualized 32 bit Windows test?

EDIT: It's dead, Jim. We'll see if I can reinstall...
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 113949 - Posted: 30 Jan 2018 | 6:06:50 UTC

Not enough memory in an IBM T40 Thinkpad to emulate a disk big enough to run GFN when running Debian Live i386 on it. I guess it would be easiest to plug in a USB hard disk and tell it to swap there.

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Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,148,632)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,703,540,875)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 113955 - Posted: 30 Jan 2018 | 12:53:51 UTC

Repeat Mac/AMD OCL5 tests resulted in errors. Same error occurred on production version.

dora:test1 vzimmerman$ ./primegrid_genefer_3_3_2_3.18_x86_64-apple-darwin__openclatiGFN18 -q 52186^131072+1 -x OCL5
geneferocl 3.3.2-7 (Apple-x86/OpenCL/64-bit)

Copyright 2001-2017, Yves Gallot
Copyright 2009, Mark Rodenkirch, David Underbakke
Copyright 2010-2012, Shoichiro Yamada, Ken Brazier
Copyright 2011-2014, Michael Goetz, Ronald Schneider
Copyright 2011-2017, Iain Bethune
Genefer is free source code, under the MIT license.

Command line: ./primegrid_genefer_3_3_2_3.18_x86_64-apple-darwin__openclatiGFN18 -q 52186^131072+1 -x OCL5

Low priority change succeeded.

Testing 52186^131072+1...
Using OCL5 transform
Running on platform 'Apple', device 'ATI Radeon RX 480 Compute Engine', vendor 'AMD', version 'OpenCL 1.2 ' and driver '1.2 (Nov 9 2017 18:48:40)'.
36 computeUnits @ 1266MHz, memSize=8192MB, cacheSize=0kB, cacheLineSize=0B, localMemSize=32kB, maxWorkGroupSize=256.
Starting initialization...
Initialization complete (0.120 seconds).
Estimated time for 52186^131072+1 is 0:11:10
Testing 52186^131072+1... 381732 steps to go (0:02:03 remaining)
maxErr exceeded for 52186^131072+1, 1.0000 > 0.4500
Errors occurred for all available transform implementations

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 113957 - Posted: 30 Jan 2018 | 13:23:34 UTC - in response to Message 113955.

Repeat Mac/AMD OCL5 tests resulted in errors. Same error occurred on production version.


I just want to confirm Grebuloner's result... I ran this (Windows 7, NVidia GTX 1060) using OCL5 and it worked. I also ran it without specifying the transform and it ran OCL4, which also worked. (I.e., duplicating B53 and B55.)


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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 7 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (27,589,187)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (46,834,631)PPS LLR Emerald: Earned 50,000,000 credits (61,756,838)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Emerald: Earned 50,000,000 credits (50,873,282)SR5 LLR Sapphire: Earned 20,000,000 credits (23,807,284)SGS LLR Sapphire: Earned 20,000,000 credits (21,819,843)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (502,006,216)GFN Double Silver: Earned 200,000,000 credits (278,220,852)WW Double Silver: Earned 200,000,000 credits (473,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 113961 - Posted: 30 Jan 2018 | 16:25:12 UTC
Last modified: 30 Jan 2018 | 16:25:58 UTC

I got my little C2D back up again, reserving/doing 32 bit Win CPU tests.

EDIT: Nevermind. narrowly beaten to the punch.
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Found 1 prime in the 2018 Tour de Primes321 LLR Gold: Earned 500,000 credits (506,942)Cullen LLR Gold: Earned 500,000 credits (500,523)ESP LLR Gold: Earned 500,000 credits (655,642)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (539,100)PPS LLR Gold: Earned 500,000 credits (688,232)PSP LLR Gold: Earned 500,000 credits (561,629)SoB LLR Ruby: Earned 2,000,000 credits (3,659,676)SR5 LLR Gold: Earned 500,000 credits (505,810)SGS LLR Gold: Earned 500,000 credits (506,024)TRP LLR Gold: Earned 500,000 credits (963,625)Woodall LLR Gold: Earned 500,000 credits (506,044)321 Sieve (suspended) Gold: Earned 500,000 credits (511,694)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (549,916)PPS Sieve Gold: Earned 500,000 credits (701,168)AP 26/27 Gold: Earned 500,000 credits (525,590)GFN Jade: Earned 10,000,000 credits (10,762,872)WW Gold: Earned 500,000 credits (500,000)PSA Gold: Earned 500,000 credits (525,639)
Message 113962 - Posted: 30 Jan 2018 | 16:40:00 UTC

I might even be able to run tests on Pentium 4. Which would be an even "purer" in that it doesn't have 64-bit instructions at all. Sorry, Grebuloner :[

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Found 1 prime in the 2018 Tour de Primes321 LLR Gold: Earned 500,000 credits (506,942)Cullen LLR Gold: Earned 500,000 credits (500,523)ESP LLR Gold: Earned 500,000 credits (655,642)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (539,100)PPS LLR Gold: Earned 500,000 credits (688,232)PSP LLR Gold: Earned 500,000 credits (561,629)SoB LLR Ruby: Earned 2,000,000 credits (3,659,676)SR5 LLR Gold: Earned 500,000 credits (505,810)SGS LLR Gold: Earned 500,000 credits (506,024)TRP LLR Gold: Earned 500,000 credits (963,625)Woodall LLR Gold: Earned 500,000 credits (506,044)321 Sieve (suspended) Gold: Earned 500,000 credits (511,694)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (549,916)PPS Sieve Gold: Earned 500,000 credits (701,168)AP 26/27 Gold: Earned 500,000 credits (525,590)GFN Jade: Earned 10,000,000 credits (10,762,872)WW Gold: Earned 500,000 credits (500,000)PSA Gold: Earned 500,000 credits (525,639)
Message 113966 - Posted: 30 Jan 2018 | 19:29:39 UTC

Ok, that second computer turned out to be Pentium 4 511 (prescott, 90nm), one of the first chips to get Intel's x86-64-bit instruction set. So there's no real "pureness" difference testing on it or on that pentium dual-core. Meh.
So I ran a bunch of tests to see the application works there, but I'm only going to commit to fully running the listed tests on the first computer above which I posted first.

Grebuloner, by the way, I'm not going to run the BOINC win32 test, you can still grab that one, if you want!

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,416,635)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,036,951)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 113967 - Posted: 30 Jan 2018 | 19:51:25 UTC - in response to Message 113960.

I have an old pc running 32-bit windows xp. It has an Intel Pentium E2180 (65nm technology, no SSE4 yet, but dual core). Should be fine for a "pure" windows32 test?


It's... better than testing under 64 bit Windows, but that's still a 64 bit CPU. It will execute 64 bit instructions. You *could* run a 64 bit operating system on it if you wanted to. However, testing under XP, in and of itself, is useful as it will show if the build has any incompatibilities with XP. Compiling code with modern compilers that will run on Win 10 as well as XP is getting harder and harder every year.

Until last year I had a true 32 bit computer running XP, but it died in 2017. It was very useful for testing that app builds truly had no instructions that wouldn't run on plain vanilla CPUs. No SSE2, no x64, nothing.

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Discovered 3 mega primesFound 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (8,694,284)Cullen LLR Ruby: Earned 2,000,000 credits (2,769,124)ESP LLR Ruby: Earned 2,000,000 credits (4,575,671)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,036,594)PPS LLR Jade: Earned 10,000,000 credits (14,928,128)PSP LLR Turquoise: Earned 5,000,000 credits (8,934,045)SoB LLR Sapphire: Earned 20,000,000 credits (21,369,769)SR5 LLR Turquoise: Earned 5,000,000 credits (5,899,697)SGS LLR Turquoise: Earned 5,000,000 credits (5,884,857)TRP LLR Turquoise: Earned 5,000,000 credits (6,736,215)Woodall LLR Ruby: Earned 2,000,000 credits (4,718,281)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (22,742,002)Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,356,541)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,424,826)PPS Sieve Double Silver: Earned 200,000,000 credits (373,847,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,181,774)AP 26/27 Sapphire: Earned 20,000,000 credits (47,020,090)GFN Emerald: Earned 50,000,000 credits (60,959,876)WW Jade: Earned 10,000,000 credits (10,008,000)PSA Amethyst: Earned 1,000,000 credits (1,002,500)
Message 113988 - Posted: 31 Jan 2018 | 1:57:31 UTC - in response to Message 113967.

I have an old pc running 32-bit windows xp. It has an Intel Pentium E2180 (65nm technology, no SSE4 yet, but dual core). Should be fine for a "pure" windows32 test?


It's... better than testing under 64 bit Windows, but that's still a 64 bit CPU. It will execute 64 bit instructions. You *could* run a 64 bit operating system on it if you wanted to. However, testing under XP, in and of itself, is useful as it will show if the build has any incompatibilities with XP. Compiling code with modern compilers that will run on Win 10 as well as XP is getting harder and harder every year.

Until last year I had a true 32 bit computer running XP, but it died in 2017. It was very useful for testing that app builds truly had no instructions that wouldn't run on plain vanilla CPUs. No SSE2, no x64, nothing.

Have you tried IntelĀ® Software Development Emulator? It can emulate Intel Quark CPU, which has IA-32 architecture. It will complain if program will try to execute instruction not supported by specified CPU.
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Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 114117 - Posted: 2 Feb 2018 | 9:48:45 UTC

Update on OCL5 "bug" seen on 52186^131072+1:

As far as we know at present this is likely to be a hardware-related issue rather than a code bug. Round-off errors have been seen on Van's Mac with Radeon RX 480 and composite's Linux box with GeForce GTX 760. On Van's machine the error is reproducible on most runs, but not always at the same point in the calculation. On composite's it has only been seen once. Van also sees the same behaviour with the current stock app (3.3.2).

We have over 40 successful tests in both Linux/Nvidia and Mac/AMD setups, and have additional successful tests on Windows/Nvidia and Mac/Nvidia.

composite - would you be able to re-run the test several times on your host where you first saw the bug and see if appears to be recreatable?

In any case, I think we can continue with the test programme - if anyone has Linux and/or Windows systems with AMD GPUs, that could run some tests that would be very helpful - PM me if you're unsure what to do!

- Iain


____________
Twitter: IainBethune
Proud member of team "Aggie The Pew". Go Aggie!
3073428256125*2^1290000-1 is Prime!

Profile composite
Volunteer tester
Send message
Joined: 16 Feb 10
Posts: 1002
ID: 55391
Credit: 878,663,462
RAC: 341,889
Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,055,323)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (3,433,680)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,443,837)PPS LLR Sapphire: Earned 20,000,000 credits (33,686,804)PSP LLR Turquoise: Earned 5,000,000 credits (6,587,988)SoB LLR Sapphire: Earned 20,000,000 credits (44,987,733)SR5 LLR Turquoise: Earned 5,000,000 credits (6,205,694)SGS LLR Ruby: Earned 2,000,000 credits (3,627,819)TRP LLR Turquoise: Earned 5,000,000 credits (7,078,152)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,256,050)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (457,266,658)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Turquoise: Earned 5,000,000 credits (6,798,063)GFN Emerald: Earned 50,000,000 credits (57,113,430)WW Ruby: Earned 2,000,000 credits (2,072,000)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 114500 - Posted: 7 Feb 2018 | 12:53:17 UTC
Last modified: 7 Feb 2018 | 12:57:29 UTC

I still get the same error with OCL5 on Linux testing 52186^131072+1. The first time I tried it today, I got the error twice during the same test (with resumption). Sometimes I don't get the error. It's random.

This GPU works reliably with OCL2. No invalid tasks returned in the last 1256 GFN16 tasks completed during the challenge.

EDIT: When I remove the checkpoint file after failure, the error occurs at different iterations.

Van ZimmermanProject donor
Volunteer tester
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Joined: 30 Aug 12
Posts: 1950
ID: 168418
Credit: 6,315,554,899
RAC: 0
Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,148,632)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,703,540,875)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 114509 - Posted: 7 Feb 2018 | 18:22:12 UTC

G76 errored out, but I suspect that is my now-untrustworthe RX480.

Iain BethuneProject donor
Honorary cruncher
Send message
Joined: 28 Jan 09
Posts: 1588
ID: 34775
Credit: 194,056,043
RAC: 0
321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 115685 - Posted: 1 Mar 2018 | 20:12:27 UTC

Genefer 3.3.3 has now been released and I've applied manual credit for all of the tests that were run. Thanks to everyone who contributed to the testing - and congrats to dukebg, composite and Kiska on your new "Volunteer tester" status!

- Iain
____________
Twitter: IainBethune
Proud member of team "Aggie The Pew". Go Aggie!
3073428256125*2^1290000-1 is Prime!

Message boards : Generalized Fermat Prime Search : Genefer 3.3.3 testing

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