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Message boards : Number crunching : Operational LLR-GPU application already running here?

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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 (2,706,281)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)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 (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,330)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,862,452)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 (10,118,303)GFN Emerald: Earned 50,000,000 credits (75,106,140)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 32772 - Posted: 12 Feb 2011 | 15:46:46 UTC

I'm not going to provide links, but I noticed that the wingman on one of my Cullen LLR WUs had already returned the result -- in one fifth the time it takes my computer to do it. Looking at the wingman's computer, it's returned many of them that quickly, and they all validated correctly.

My computer is a C2Q, his is an i5. No CPU is currently fast enough to do the calculations that quickly; with current architectures you would need to be running above 10 GHz or maybe higher.

The only conclusion is that he's running a GPU version of LLR under an anonymous platform. He's running Cullen and Woodall using the anonymous platform mechanism, both with exceptionally fast run times. Other LLR WUs, which are not using an anonymous platform, are showing normal run times on the same computer.

So, does anyone know anything about the status of GPU-LLR programming right now? It seems like someone is making some serious progress.
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Discovered 7 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 Primes321 LLR Emerald: Earned 50,000,000 credits (91,282,326)Cullen LLR Emerald: Earned 50,000,000 credits (54,948,885)ESP LLR Emerald: Earned 50,000,000 credits (50,853,190)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,309,119)PPS LLR Double Bronze: Earned 100,000,000 credits (122,476,468)PSP LLR Emerald: Earned 50,000,000 credits (50,563,867)SoB LLR Double Bronze: Earned 100,000,000 credits (101,502,109)SR5 LLR Double Bronze: Earned 100,000,000 credits (101,883,529)SGS LLR Emerald: Earned 50,000,000 credits (53,154,727)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Double Bronze: Earned 100,000,000 credits (100,338,924)Woodall LLR Emerald: Earned 50,000,000 credits (50,956,094)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 (232,724,773)GFN Double Gold: Earned 500,000,000 credits (744,575,469)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 32774 - Posted: 12 Feb 2011 | 16:18:00 UTC - in response to Message 32772.
Last modified: 12 Feb 2011 | 16:18:43 UTC

So, does anyone know anything about the status of GPU-LLR programming right now? It seems like someone is making some serious progress.


llrCUDA at Mersenne forum is worth watching.
(I haven't seen Windows build to test it myself)
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Found 2 primes 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 (2,010,094)Cullen LLR Amethyst: Earned 1,000,000 credits (1,603,881)ESP LLR Amethyst: Earned 1,000,000 credits (1,193,202)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (767,102)PPS LLR Jade: Earned 10,000,000 credits (17,460,353)PSP LLR Ruby: Earned 2,000,000 credits (4,060,731)SoB LLR Ruby: Earned 2,000,000 credits (3,860,053)SR5 LLR Amethyst: Earned 1,000,000 credits (1,709,799)SGS LLR Amethyst: Earned 1,000,000 credits (1,152,571)TPS LLR (retired) Bronze: Earned 10,000 credits (19,376)TRP LLR Ruby: Earned 2,000,000 credits (2,520,745)Woodall LLR Amethyst: Earned 1,000,000 credits (1,230,355)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,915,071)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,584,236)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,461,309)PPS Sieve Emerald: Earned 50,000,000 credits (83,501,701)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (352,129)TRP Sieve (suspended) Gold: Earned 500,000 credits (776,202)AP 26/27 Turquoise: Earned 5,000,000 credits (5,851,049)GFN Sapphire: Earned 20,000,000 credits (31,234,565)PSA Ruby: Earned 2,000,000 credits (4,154,617)
Message 32781 - Posted: 12 Feb 2011 | 20:46:07 UTC - in response to Message 32774.

I am in a position to make llrCUDA work with BOINC relatively quickly, I think, but I haven't done so yet. And no Windows builds are working right now, that I know of.

Were you going by elapsed time or by date and time of return minus date and time of send? I've noticed in some cases the wrapper can forget about elapsed time previously spent on a WU when it restarts.
____________

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 (2,706,281)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)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 (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,330)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,862,452)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 (10,118,303)GFN Emerald: Earned 50,000,000 credits (75,106,140)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 32828 - Posted: 13 Feb 2011 | 23:50:20 UTC - in response to Message 32774.

So, does anyone know anything about the status of GPU-LLR programming right now? It seems like someone is making some serious progress.


llrCUDA at Mersenne forum is worth watching.
(I haven't seen Windows build to test it myself)


Actually, since you're the wingman, might I ask how you're getting Cullen Woodall LLRs completed successfully in the 50,000 second range?
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Discovered 7 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 Primes321 LLR Emerald: Earned 50,000,000 credits (91,282,326)Cullen LLR Emerald: Earned 50,000,000 credits (54,948,885)ESP LLR Emerald: Earned 50,000,000 credits (50,853,190)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,309,119)PPS LLR Double Bronze: Earned 100,000,000 credits (122,476,468)PSP LLR Emerald: Earned 50,000,000 credits (50,563,867)SoB LLR Double Bronze: Earned 100,000,000 credits (101,502,109)SR5 LLR Double Bronze: Earned 100,000,000 credits (101,883,529)SGS LLR Emerald: Earned 50,000,000 credits (53,154,727)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Double Bronze: Earned 100,000,000 credits (100,338,924)Woodall LLR Emerald: Earned 50,000,000 credits (50,956,094)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 (232,724,773)GFN Double Gold: Earned 500,000,000 credits (744,575,469)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 32833 - Posted: 14 Feb 2011 | 6:44:36 UTC

When running anonymous platform using old wrapper and client got restarted, it was reporting wrong run time (ie. it goes to zero upon restart, even task is 75% finished and continue from checkpoint). I even have results showing 15k, 10k or 5k sec on C/W LLRs.
It results in unbelievable low run-time and even lower credit, albeit real run-time was in ~150k sec expected range.
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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (7,755,670)Cullen LLR Turquoise: Earned 5,000,000 credits (5,775,956)ESP LLR Jade: Earned 10,000,000 credits (11,742,728)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,214,657)PPS LLR Jade: Earned 10,000,000 credits (16,398,910)PSP LLR Turquoise: Earned 5,000,000 credits (9,409,109)SoB LLR Jade: Earned 10,000,000 credits (12,074,463)SR5 LLR Sapphire: Earned 20,000,000 credits (22,886,469)SGS LLR Turquoise: Earned 5,000,000 credits (7,290,166)TPS LLR (retired) Bronze: Earned 10,000 credits (76,372)TRP LLR Jade: Earned 10,000,000 credits (15,711,883)Woodall LLR Turquoise: Earned 5,000,000 credits (8,519,621)321 Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,528)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,264)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,347)PPS Sieve Double Silver: Earned 200,000,000 credits (392,097,930)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,177,104)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,556,644)AP 26/27 Double Bronze: Earned 100,000,000 credits (138,699,038)GFN Double Silver: Earned 200,000,000 credits (396,207,892)PSA Double Amethyst: Earned 1,000,000,000 credits (1,079,860,880)
Message 32838 - Posted: 14 Feb 2011 | 9:00:04 UTC - in response to Message 32833.

It results in unbelievable low run-time and even lower credit, albeit real run-time was in ~150k sec expected range.

This will also be a problem as soon as we have a llrCUDA ready for BOINC... with the current credit system, we'll have high credits (if two CPU results validate against each other), medium credits (CPU vs GPU) and low credits (two GPUs) for similar WUs.
____________

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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 (2,706,281)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)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 (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,330)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,862,452)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 (10,118,303)GFN Emerald: Earned 50,000,000 credits (75,106,140)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 32842 - Posted: 14 Feb 2011 | 9:42:49 UTC - in response to Message 32838.

It results in unbelievable low run-time and even lower credit, albeit real run-time was in ~150k sec expected range.

This will also be a problem as soon as we have a llrCUDA ready for BOINC... with the current credit system, we'll have high credits (if two CPU results validate against each other), medium credits (CPU vs GPU) and low credits (two GPUs) for similar WUs.


I'm pretty sure SETI@home has a similar scenario -- credits based upon run-times and CPU vs, GPU validations -- and I don't remember having a problem there with credits being too low on GPU apps. It's been over a year since I crunched there, however, so I might be remembering some of the details incorrectly.
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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (3,949,575)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (9,200,261)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,990,322)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Emerald: Earned 50,000,000 credits (50,195,808)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (42,454,923)PSA Sapphire: Earned 20,000,000 credits (34,214,582)
Message 32845 - Posted: 14 Feb 2011 | 10:24:03 UTC - in response to Message 32842.
Last modified: 14 Feb 2011 | 10:24:42 UTC

LLR should use an algorithmic server-side formula based on n, k, digits, FFT size etc that takes client claim out of the picture. However, I'm not sure how easy it is to come up with a single formula that copes equally well with PPS and SoB WUs for instance. The aim would be to reward work done, rather than how it was done - the same formula would apply regardless of CPU versus GPU etc.
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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (7,755,670)Cullen LLR Turquoise: Earned 5,000,000 credits (5,775,956)ESP LLR Jade: Earned 10,000,000 credits (11,742,728)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,214,657)PPS LLR Jade: Earned 10,000,000 credits (16,398,910)PSP LLR Turquoise: Earned 5,000,000 credits (9,409,109)SoB LLR Jade: Earned 10,000,000 credits (12,074,463)SR5 LLR Sapphire: Earned 20,000,000 credits (22,886,469)SGS LLR Turquoise: Earned 5,000,000 credits (7,290,166)TPS LLR (retired) Bronze: Earned 10,000 credits (76,372)TRP LLR Jade: Earned 10,000,000 credits (15,711,883)Woodall LLR Turquoise: Earned 5,000,000 credits (8,519,621)321 Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,528)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,264)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,347)PPS Sieve Double Silver: Earned 200,000,000 credits (392,097,930)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,177,104)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,556,644)AP 26/27 Double Bronze: Earned 100,000,000 credits (138,699,038)GFN Double Silver: Earned 200,000,000 credits (396,207,892)PSA Double Amethyst: Earned 1,000,000,000 credits (1,079,860,880)
Message 32846 - Posted: 14 Feb 2011 | 10:26:22 UTC - in response to Message 32842.

I'm pretty sure SETI@home has a similar scenario -- credits based upon run-times and CPU vs, GPU validations -- and I don't remember having a problem there with credits being too low on GPU apps. It's been over a year since I crunched there, however, so I might be remembering some of the details incorrectly.

S@h was granting credit based on FLOPs (counted by the app itself), when I crunched there last time. But that's over two years ago, so it might have changed.
____________

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Discovered 7 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 Primes321 LLR Emerald: Earned 50,000,000 credits (91,282,326)Cullen LLR Emerald: Earned 50,000,000 credits (54,948,885)ESP LLR Emerald: Earned 50,000,000 credits (50,853,190)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,309,119)PPS LLR Double Bronze: Earned 100,000,000 credits (122,476,468)PSP LLR Emerald: Earned 50,000,000 credits (50,563,867)SoB LLR Double Bronze: Earned 100,000,000 credits (101,502,109)SR5 LLR Double Bronze: Earned 100,000,000 credits (101,883,529)SGS LLR Emerald: Earned 50,000,000 credits (53,154,727)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Double Bronze: Earned 100,000,000 credits (100,338,924)Woodall LLR Emerald: Earned 50,000,000 credits (50,956,094)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 (232,724,773)GFN Double Gold: Earned 500,000,000 credits (744,575,469)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 32849 - Posted: 14 Feb 2011 | 12:17:24 UTC - in response to Message 32845.

LLR should use an algorithmic server-side formula based on n, k, digits, FFT size etc that takes client claim out of the picture.

I believe similar formula is used on PRPNet

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321 LLR Bronze: Earned 10,000 credits (11,773)Cullen LLR Bronze: Earned 10,000 credits (14,945)ESP LLR Bronze: Earned 10,000 credits (26,855)PPS LLR Bronze: Earned 10,000 credits (84,876)PSP LLR Bronze: Earned 10,000 credits (15,311)SoB LLR Bronze: Earned 10,000 credits (21,440)SR5 LLR Bronze: Earned 10,000 credits (29,270)SGS LLR Bronze: Earned 10,000 credits (26,616)TPS LLR (retired) Bronze: Earned 10,000 credits (36,288)TRP LLR Bronze: Earned 10,000 credits (41,655)Woodall LLR Bronze: Earned 10,000 credits (15,807)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,014)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (23,405)PPS Sieve Bronze: Earned 10,000 credits (36,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,306)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,738)GFN Bronze: Earned 10,000 credits (86,217)PSA Ruby: Earned 2,000,000 credits (2,143,756)
Message 32865 - Posted: 14 Feb 2011 | 14:56:03 UTC - in response to Message 32772.

Michael Goetz wrote:
So, does anyone know anything about the status of GPU-LLR programming right now? It seems like someone is making some serious progress.

Good progress is being made on llrCUDA but not to the effect that you're describing. Currently, it's only slightly faster than a single core. Honza posts a more practical explanation. Although, I wish yours was correct and llrCUDA was that much faster. :)

vato wrote:
LLR should use an algorithmic server-side formula based on n, k, digits, FFT size etc that takes client claim out of the picture. However, I'm not sure how easy it is to come up with a single formula that copes equally well with PPS and SoB WUs for instance. The aim would be to reward work done, rather than how it was done - the same formula would apply regardless of CPU versus GPU etc.

The holy grail of LLR credit. :D
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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 (2,706,281)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)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 (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,330)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,862,452)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 (10,118,303)GFN Emerald: Earned 50,000,000 credits (75,106,140)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 32868 - Posted: 14 Feb 2011 | 16:31:59 UTC - in response to Message 32833.

When running anonymous platform using old wrapper and client got restarted, it was reporting wrong run time (ie. it goes to zero upon restart, even task is 75% finished and continue from checkpoint). I even have results showing 15k, 10k or 5k sec on C/W LLRs.
It results in unbelievable low run-time and even lower credit, albeit real run-time was in ~150k sec expected range.



::sigh:: And I was hoping you were testing what would have been a major breakthrough. :(
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Message boards : Number crunching : Operational LLR-GPU application already running here?

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