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Message boards : Generalized Fermat Prime Search : GFN short/WR both low GPU usage

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Profile Andrew Hughes
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Credit: 78,325,605
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321 LLR Silver: Earned 100,000 credits (435,860)PPS LLR Turquoise: Earned 5,000,000 credits (7,595,445)TRP LLR Bronze: Earned 10,000 credits (75,112)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (80,285)PPS Sieve Ruby: Earned 2,000,000 credits (4,823,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (199,298)GFN Emerald: Earned 50,000,000 credits (64,856,896)PSA Silver: Earned 100,000 credits (258,808)
Message 86621 - Posted: 10 Jul 2015 | 4:08:05 UTC

Hello, I am having some slight difficulties fully using my GPUs for GFN testing.

Both of my GPUs run at ~50% gpu usage with one task, no heating, clocking or other issues that are occurring. I'm wondering if there is a way to increase the usage of the GPU or if there is away to run two tasks on the same GPU like in SETI.

Thanks!

Profile Andrew Hughes
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Credit: 78,325,605
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321 LLR Silver: Earned 100,000 credits (435,860)PPS LLR Turquoise: Earned 5,000,000 credits (7,595,445)TRP LLR Bronze: Earned 10,000 credits (75,112)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (80,285)PPS Sieve Ruby: Earned 2,000,000 credits (4,823,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (199,298)GFN Emerald: Earned 50,000,000 credits (64,856,896)PSA Silver: Earned 100,000 credits (258,808)
Message 86623 - Posted: 10 Jul 2015 | 7:53:55 UTC - in response to Message 86621.

oops, forgot to say that I am using the opencl build

Profile Gary Craig
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Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,893,273)Cullen LLR Ruby: Earned 2,000,000 credits (2,440,687)ESP LLR Turquoise: Earned 5,000,000 credits (5,738,876)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,292,626)PPS LLR Turquoise: Earned 5,000,000 credits (9,648,951)PSP LLR Turquoise: Earned 5,000,000 credits (5,653,927)SoB LLR Jade: Earned 10,000,000 credits (10,558,341)SR5 LLR Turquoise: Earned 5,000,000 credits (5,748,705)SGS LLR Ruby: Earned 2,000,000 credits (3,335,713)TRP LLR Jade: Earned 10,000,000 credits (12,602,818)Woodall LLR Ruby: Earned 2,000,000 credits (2,282,622)321 Sieve Gold: Earned 500,000 credits (740,566)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (59,788,598)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,143,068)PPS Sieve Double Gold: Earned 500,000,000 credits (524,673,938)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,130,821)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,074,710)AP 26/27 Sapphire: Earned 20,000,000 credits (43,842,888)GFN Double Silver: Earned 200,000,000 credits (224,648,943)PSA Emerald: Earned 50,000,000 credits (62,378,755)
Message 86624 - Posted: 10 Jul 2015 | 8:09:10 UTC - in response to Message 86621.
Last modified: 10 Jul 2015 | 8:10:56 UTC

Use app_config.xml. This is a file that goes in the projects/www.primegrid.com directory and should have the same ownership and permissions as the other files there. This is the file I use to get multiple PPS Sieve tasks running simultaneously on a single gtx770 in a Linux box:

<app_config> <app> <name>pps_sr2sieve</name> <max_concurrent>4</max_concurrent> <gpu_versions> <gpu_usage>0.5</gpu_usage> <cpu_usage>0.1</cpu_usage> </gpu_versions> </app> </app_config>

Of course for GFN, you would want to replace "pps_sr2sieve" with "genefer" or "genefer_wr". Tweak the numeric values above so that it does something reasonable on your box. I usually restart BOINC after any such change just to ensure the latest changes are read.

You may also want to check that the *CPU* side of the GFN *GPU* app is getting enough cycles to feed the GPU well. On Linux with OpenCL it takes a whole CPU core to feed the GPU.

--Gary
EDIT: you need a relatively recent version of BOINC for this. 6.x.y is definitely too old.

HonzaProject donor
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Joined: 15 Aug 05
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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 Double Bronze: Earned 100,000,000 credits (100,425,701)Cullen LLR Emerald: Earned 50,000,000 credits (60,526,018)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 (101,573,710)SR5 LLR Double Bronze: Earned 100,000,000 credits (101,883,529)SGS LLR Emerald: Earned 50,000,000 credits (55,573,529)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 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 (764,820,760)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 86628 - Posted: 10 Jul 2015 | 11:47:35 UTC

Andrew, if to looked up correctly, we are talking about Windows and BOINC 7.4.42.
Not sure if vbox version of BOINC is the way to go for GPU.

As Gary mentioned, make sure you have enough CPU cycles free, a single core should do.

I'm getting ~95% of HD7950 GPU usage, running short GFN, i5-4670.
3 cores are running GFN on CPU, 4th core is feeding GPU (4-8% CPU usage)

I would also try latest Catalyst driver (just released 15.7 is working fine in my case)
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Profile Andrew Hughes
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Joined: 19 Feb 15
Posts: 71
ID: 381849
Credit: 78,325,605
RAC: 0
321 LLR Silver: Earned 100,000 credits (435,860)PPS LLR Turquoise: Earned 5,000,000 credits (7,595,445)TRP LLR Bronze: Earned 10,000 credits (75,112)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (80,285)PPS Sieve Ruby: Earned 2,000,000 credits (4,823,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (199,298)GFN Emerald: Earned 50,000,000 credits (64,856,896)PSA Silver: Earned 100,000 credits (258,808)
Message 86662 - Posted: 12 Jul 2015 | 16:45:27 UTC

Got it working by setting up two tasks on a GPU then setting them to 0.499 GPU usage each, o crashes! :)

Profile Rick Reynolds
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Credit: 5,312,080,766
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Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 12 primes in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,244,909)Cullen LLR Jade: Earned 10,000,000 credits (10,194,451)ESP LLR Turquoise: Earned 5,000,000 credits (5,174,327)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,028,260)PPS LLR Emerald: Earned 50,000,000 credits (61,072,468)PSP LLR Turquoise: Earned 5,000,000 credits (5,151,448)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (14,871,275)SGS LLR Turquoise: Earned 5,000,000 credits (7,860,522)TRP LLR Jade: Earned 10,000,000 credits (11,130,742)Woodall LLR Turquoise: Earned 5,000,000 credits (5,419,909)321 Sieve Double Bronze: Earned 100,000,000 credits (101,538,236)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,840,173,136)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Silver: Earned 200,000,000 credits (276,723,135)GFN Double Silver: Earned 200,000,000 credits (323,467,712)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 86837 - Posted: 27 Jul 2015 | 14:02:08 UTC

So I put the app_config.xml in use and now want to disable or remove it. I renamed it but am still getting dual GPU jobs running for some reason and even rebooted. I'm sure I'm missing something really small but other than deleting the file is there anything else I need to do? I also thought maybe there was another copy somewhere but it's only in the folder Gary mentioned.

Any help would be appreciated.

Cheers

JimBProject donor
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Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,691,081)Cullen LLR Turquoise: Earned 5,000,000 credits (5,031,868)ESP LLR Turquoise: Earned 5,000,000 credits (5,064,082)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,038,750)PPS LLR Turquoise: Earned 5,000,000 credits (5,000,220)PSP LLR Turquoise: Earned 5,000,000 credits (7,674,374)SoB LLR Sapphire: Earned 20,000,000 credits (42,604,648)SR5 LLR Jade: Earned 10,000,000 credits (11,829,173)SGS LLR Ruby: Earned 2,000,000 credits (2,410,767)TRP LLR Ruby: Earned 2,000,000 credits (2,291,092)Woodall LLR Turquoise: Earned 5,000,000 credits (5,046,412)321 Sieve Jade: Earned 10,000,000 credits (10,057,614)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,005,451)PPS Sieve Emerald: Earned 50,000,000 credits (52,042,965)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Jade: Earned 10,000,000 credits (10,742,251)GFN Emerald: Earned 50,000,000 credits (50,000,251)PSA Double Gold: Earned 500,000,000 credits (728,547,693)
Message 86841 - Posted: 27 Jul 2015 | 23:38:37 UTC - in response to Message 86837.

So I put the app_config.xml in use and now want to disable or remove it. I renamed it but am still getting dual GPU jobs running for some reason and even rebooted. I'm sure I'm missing something really small but other than deleting the file is there anything else I need to do? I also thought maybe there was another copy somewhere but it's only in the folder Gary mentioned.

Let all your jobs finish, detach from PrimeGrid and reattach. That's how I do it.

Profile Rick Reynolds
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Joined: 13 Aug 10
Posts: 7880
ID: 65483
Credit: 5,312,080,766
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Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 12 primes in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,244,909)Cullen LLR Jade: Earned 10,000,000 credits (10,194,451)ESP LLR Turquoise: Earned 5,000,000 credits (5,174,327)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,028,260)PPS LLR Emerald: Earned 50,000,000 credits (61,072,468)PSP LLR Turquoise: Earned 5,000,000 credits (5,151,448)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (14,871,275)SGS LLR Turquoise: Earned 5,000,000 credits (7,860,522)TRP LLR Jade: Earned 10,000,000 credits (11,130,742)Woodall LLR Turquoise: Earned 5,000,000 credits (5,419,909)321 Sieve Double Bronze: Earned 100,000,000 credits (101,538,236)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,840,173,136)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Silver: Earned 200,000,000 credits (276,723,135)GFN Double Silver: Earned 200,000,000 credits (323,467,712)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 86844 - Posted: 28 Jul 2015 | 12:26:24 UTC - in response to Message 86841.

So I put the app_config.xml in use and now want to disable or remove it. I renamed it but am still getting dual GPU jobs running for some reason and even rebooted. I'm sure I'm missing something really small but other than deleting the file is there anything else I need to do? I also thought maybe there was another copy somewhere but it's only in the folder Gary mentioned.

Let all your jobs finish, detach from PrimeGrid and reattach. That's how I do it.


Thanks. Will try that in the future. I removed and reinstalled boinc but your solution is better.

Cheers Rick

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321 LLR Silver: Earned 100,000 credits (101,692)Cullen LLR Silver: Earned 100,000 credits (104,876)ESP LLR Silver: Earned 100,000 credits (101,979)PPS LLR Silver: Earned 100,000 credits (148,018)PSP LLR Silver: Earned 100,000 credits (140,441)SoB LLR Silver: Earned 100,000 credits (119,475)SR5 LLR Silver: Earned 100,000 credits (120,939)SGS LLR Silver: Earned 100,000 credits (122,783)TRP LLR Silver: Earned 100,000 credits (100,115)Woodall LLR Silver: Earned 100,000 credits (107,459)321 Sieve Silver: Earned 100,000 credits (202,757)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,908,135)PPS Sieve Sapphire: Earned 20,000,000 credits (25,450,104)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (130,966)TRP Sieve (suspended) Silver: Earned 100,000 credits (201,525)AP 26/27 Silver: Earned 100,000 credits (100,015)GFN Silver: Earned 100,000 credits (246,369)PSA Silver: Earned 100,000 credits (226,594)
Message 86892 - Posted: 1 Aug 2015 | 17:24:34 UTC - in response to Message 86844.

So I put the app_config.xml in use and now want to disable or remove it. I renamed it but am still getting dual GPU jobs running for some reason and even rebooted. I'm sure I'm missing something really small but other than deleting the file is there anything else I need to do? I also thought maybe there was another copy somewhere but it's only in the folder Gary mentioned.

Let all your jobs finish, detach from PrimeGrid and reattach. That's how I do it.


Thanks. Will try that in the future. I removed and reinstalled boinc but your solution is better.

Cheers Rick

Does let all jobs finish, rename the xml file and restart boinc not work?
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Best wishes. Knowledge is power. by jjwhalen

Message boards : Generalized Fermat Prime Search : GFN short/WR both low GPU usage

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