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Message boards : Generalized Fermat Prime Search : CPU version of GFN-16 is no longer available.

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Profile Michael GoetzProject donor
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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 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,004,590)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,130)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 (20,114,159)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 (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 137078 - Posted: 1 Feb 2020 | 22:16:52 UTC

We've reached the software b limit for GFN-16 on a CPU. These tasks are no longer available.

GPU tasks are still available.

This only affects GFN-16.

If you currently have CPU tasks selected for GFN-16, you won't be getting any more of them, so you'll have to select something else to run on your CPU.
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Profile JeppeSNProject donor
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Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (360,928)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Ruby: Earned 2,000,000 credits (4,532,592)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Bronze: Earned 10,000 credits (99,305)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 137143 - Posted: 3 Feb 2020 | 14:05:16 UTC

It would probably be possible to configure GFN-16 to use LLR when running on a CPU. LLR can handle extremely high b values. But I guess it is too slow to be worth the effort. /JeppeSN

Profile Michael GoetzProject donor
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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 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,004,590)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,130)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 (20,114,159)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 (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 137149 - Posted: 3 Feb 2020 | 15:28:08 UTC - in response to Message 137143.

It would probably be possible to configure GFN-16 to use LLR when running on a CPU. LLR can handle extremely high b values. But I guess it is too slow to be worth the effort. /JeppeSN


They do not produce compatible residues:

C:\bench>genefer_windows64 -q "1234^4096+1" genefer 3.3.4 (Windows/CPU/64-bit) Testing 1234^4096+1... Using FMA3 transform 1234^4096+1 is composite. (RES=244d1535d39789b7) (12663 digits) (err = 0.0000) (time = 0:00:02) 10:22:44 C:\bench>llr64 -d -q"1234^4096+1" Base factorized as : 2*617 Base prime factor(s) taken : 617 Starting N-1 prime test of 1234^4096+1 Using all-complex FMA3 FFT length 2K, a = 3 1234^4096+1 is not prime. RES64: 378B6BA67180D76A. OLD64: A6A242F354828639 Time : 2.515 sec.


While running genefer with "-p" produces the same residue as LLR, I'm not sure if there's a way to get LLR to produce a residue that matches Genefer's PRP test.
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Message 137153 - Posted: 3 Feb 2020 | 16:44:10 UTC - in response to Message 137149.

It would probably be possible to configure GFN-16 to use LLR when running on a CPU. LLR can handle extremely high b values. But I guess it is too slow to be worth the effort. /JeppeSN

While running genefer with "-p" produces the same residue as LLR, I'm not sure if there's a way to get LLR to produce a residue that matches Genefer's PRP test.

genefer can generate LLR residues:

geneferocl_windows.exe -llr -q "1234^4096+1"
1234^4096+1 is composite. (RES=244d1535d39789b7 RES64=022A9B06450EF6F8) (12663 digits) (err = 0.0000)

cllr64.exe -d -q"1234^4096+1" -oFBase=2
1234^4096+1 is not prime. RES64: 022A9B06450EF6F8.

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 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,004,590)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,130)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 (20,114,159)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 (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 137162 - Posted: 3 Feb 2020 | 19:57:32 UTC - in response to Message 137153.

It would probably be possible to configure GFN-16 to use LLR when running on a CPU. LLR can handle extremely high b values. But I guess it is too slow to be worth the effort. /JeppeSN

While running genefer with "-p" produces the same residue as LLR, I'm not sure if there's a way to get LLR to produce a residue that matches Genefer's PRP test.

genefer can generate LLR residues:

geneferocl_windows.exe -llr -q "1234^4096+1"
1234^4096+1 is composite. (RES=244d1535d39789b7 RES64=022A9B06450EF6F8) (12663 digits) (err = 0.0000)

cllr64.exe -d -q"1234^4096+1" -oFBase=2
1234^4096+1 is not prime. RES64: 022A9B06450EF6F8.


Ok, it's theoretically possible. The same could be said of GFN-15, and GFN-17-MEGA.

I don't see it happening, however. Somebody would need to have a really good explanation for why bringing a NerfTM ball to a gunfight is so important. :)
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Profile dannyridel
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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (569,699)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 137177 - Posted: 4 Feb 2020 | 3:02:22 UTC - in response to Message 137162.

Ok, it's theoretically possible. The same could be said of GFN-15, and GFN-17-MEGA.

I don't see it happening, however. Somebody would need to have a really good explanation for why bringing a NerfTM ball to a gunfight is so important. :)


Nerf--TM...不不不不不

Just a side question, but then why are GFN22/20/19 CPU versions here? Virtully no one would be crunching them unless they're running 24/7. But most people crunching 24/7 know better to crunch a SoB using that much time since the GPUs(machine guns) are so much quicker than CPUs(NerfTM ball).
Therefore, IMHO PG should just altogether cancel CPU-GFN for all GFN except GFN21&22, which could potentially support MTing. I don't know all the info behind the scenes so point out any errors I have in my thinking!
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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 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,004,590)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,130)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 (20,114,159)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 (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 137183 - Posted: 4 Feb 2020 | 4:58:50 UTC - in response to Message 137177.

Just a side question, but then why are GFN22/20/19 CPU versions here?


Not everyone has a GPU, so we permit it where possible. It doesn't mean it's a good idea to run it.

The exception is DYFL -- that's simply too slow, so we don't allow it even though it would run.
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Werinbert
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321 LLR Gold: Earned 500,000 credits (533,081)Cullen LLR Gold: Earned 500,000 credits (529,186)ESP LLR Gold: Earned 500,000 credits (513,315)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (521,209)PPS LLR Ruby: Earned 2,000,000 credits (2,859,767)PSP LLR Gold: Earned 500,000 credits (566,492)SoB LLR Gold: Earned 500,000 credits (597,244)SR5 LLR Gold: Earned 500,000 credits (609,158)SGS LLR Gold: Earned 500,000 credits (503,589)TRP LLR Gold: Earned 500,000 credits (542,295)Woodall LLR Gold: Earned 500,000 credits (615,831)321 Sieve Ruby: Earned 2,000,000 credits (3,319,604)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,101,470)PPS Sieve Double Bronze: Earned 100,000,000 credits (100,344,557)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (715,073)TRP Sieve (suspended) Gold: Earned 500,000 credits (630,833)AP 26/27 Turquoise: Earned 5,000,000 credits (7,067,164)GFN Sapphire: Earned 20,000,000 credits (33,525,353)PSA Ruby: Earned 2,000,000 credits (2,262,901)
Message 137228 - Posted: 5 Feb 2020 | 1:42:44 UTC
Last modified: 5 Feb 2020 | 1:43:15 UTC

My computers have only one GPU (or none) but many CPU cores. As I am trying to increase WUProp application hours I find it convenient to run the long running WUs on the GPU and the short running WUs on a few CPU cores. The funny thing is even when running GFN tasks on my CPU I still occasionally turn mine in before the final wingman.

I have also noticed that while GFN-17 Mega run at near 100% on my 1660 Ti, the GFN-16s can't get above 75% GPU utilization.
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