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Message boards : Proth Prime Search : What happen, PPS Sieve Slow down.

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John10051
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Joined: 16 Dec 12
Posts: 2
ID: 185186
Credit: 290,703,747
RAC: 0
321 LLR Bronze: Earned 10,000 credits (14,915)Cullen LLR Bronze: Earned 10,000 credits (20,444)PPS LLR Silver: Earned 100,000 credits (344,280)PSP LLR Silver: Earned 100,000 credits (110,750)SoB LLR Bronze: Earned 10,000 credits (86,606)SGS LLR Silver: Earned 100,000 credits (225,271)TRP LLR Bronze: Earned 10,000 credits (33,233)Woodall LLR Bronze: Earned 10,000 credits (51,149)PPS Sieve Double Silver: Earned 200,000,000 credits (285,719,218)TRP Sieve (suspended) Silver: Earned 100,000 credits (349,962)GFN Ruby: Earned 2,000,000 credits (3,744,145)
Message 70861 - Posted: 13 Nov 2013 | 22:46:38 UTC

The Run time (sec) of my computers with GTX660ti Slow down, from 715. 12 to 837.40 sec for PPS (Sieve) v1.39. BOINC Manager's Status was changed from 0.122 CPUs to 0.0741 CPUs. And GTX650ti is from 1,609 to 2,783 sec, GT640 is from 3,033 sec to 5,500 sec.

TroubledBunnyProject donor
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Joined: 4 Jun 07
Posts: 605
ID: 8931
Credit: 385,015,100
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Discovered 1 mega prime321 LLR Gold: Earned 500,000 credits (622,449)Cullen LLR Amethyst: Earned 1,000,000 credits (1,019,085)ESP LLR Amethyst: Earned 1,000,000 credits (1,006,207)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (769,754)PPS LLR Ruby: Earned 2,000,000 credits (3,839,000)PSP LLR Amethyst: Earned 1,000,000 credits (1,147,411)SoB LLR Gold: Earned 500,000 credits (521,611)SR5 LLR Amethyst: Earned 1,000,000 credits (1,036,817)SGS LLR Amethyst: Earned 1,000,000 credits (1,069,052)TRP LLR Amethyst: Earned 1,000,000 credits (1,004,422)Woodall LLR Gold: Earned 500,000 credits (531,350)321 Sieve Silver: Earned 100,000 credits (223,275)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,655,968)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,006,509)PPS Sieve Double Silver: Earned 200,000,000 credits (343,952,410)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,014,690)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,141,121)AP 26/27 Amethyst: Earned 1,000,000 credits (1,422,266)GFN Ruby: Earned 2,000,000 credits (4,753,065)PSA Jade: Earned 10,000,000 credits (16,276,495)
Message 70862 - Posted: 13 Nov 2013 | 23:11:38 UTC - in response to Message 70861.

I have a GTX660Ti running PPS Sieve and I get run times of c. 630 secs, e.g. 367653800
I haven't noticed any changes to my times yet.
But you have seen changes in performance across all of your GPUs so I guess it will hit me sooner or later.
Oh well,
Pete

Profile DeleteNullProject donor
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Joined: 6 Apr 06
Posts: 220
ID: 2663
Credit: 4,265,253,861
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Discovered 14 mega primesEliminated 2 conjecture "k"sFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 2 mega primes in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain Stage321 LLR Emerald: Earned 50,000,000 credits (50,589,422)Cullen LLR Emerald: Earned 50,000,000 credits (51,425,403)ESP LLR Emerald: Earned 50,000,000 credits (50,455,286)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (58,806,052)PPS LLR Emerald: Earned 50,000,000 credits (80,666,437)PSP LLR Sapphire: Earned 20,000,000 credits (28,643,611)SoB LLR Emerald: Earned 50,000,000 credits (71,606,339)SR5 LLR Emerald: Earned 50,000,000 credits (50,919,719)SGS LLR Sapphire: Earned 20,000,000 credits (23,830,854)TPS LLR (retired) Bronze: Earned 10,000 credits (61,785)TRP LLR Emerald: Earned 50,000,000 credits (50,289,244)Woodall LLR Emerald: Earned 50,000,000 credits (50,544,668)321 Sieve Turquoise: Earned 5,000,000 credits (6,075,980)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,685,309)Generalized Cullen/Woodall Sieve Emerald: Earned 50,000,000 credits (53,324,439)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,560,254,741)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,057,785)TRP Sieve (suspended) Emerald: Earned 50,000,000 credits (50,146,560)AP 26/27 Double Bronze: Earned 100,000,000 credits (157,917,746)GFN Double Gold: Earned 500,000,000 credits (705,488,582)PSA Double Bronze: Earned 100,000,000 credits (139,269,616)
Message 70863 - Posted: 13 Nov 2013 | 23:33:44 UTC - in response to Message 70861.
Last modified: 13 Nov 2013 | 23:34:30 UTC

The Run time (sec) of my computers with GTX660ti Slow down, from 715. 12 to 837.40 sec for PPS (Sieve) v1.39. BOINC Manager's Status was changed from 0.122 CPUs to 0.0741 CPUs. And GTX650ti is from 1,609 to 2,783 sec, GT640 is from 3,033 sec to 5,500 sec.


For Linux the runtimes are very different, depending on kernel and driver version. For my 650TI the difference is factor 2. The worst combination was kernel 3.11 and driver 325.15 (2600 s). The best combination is kernel 3.12 with driver 331.20 (1340 s). The card is running on defaults!

Driver 331.20 is the first version that needs no patching of the sources for kernels higher than 3.10. I have installed it with "./NVIDIA-Linux-x86_64-331.20.run --no-unified-memory".
____________
DeleteNull

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Joined: 21 Jan 10
Posts: 12195
ID: 53948
Credit: 168,887,544
RAC: 158,601
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 Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,115,831)PPS LLR Ruby: Earned 2,000,000 credits (2,768,012)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (30,035,643)SR5 LLR Turquoise: Earned 5,000,000 credits (7,691,131)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,433,520)Woodall LLR Ruby: Earned 2,000,000 credits (2,176,414)321 Sieve Gold: Earned 500,000 credits (823,268)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)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 Turquoise: Earned 5,000,000 credits (7,086,053)GFN Emerald: Earned 50,000,000 credits (60,578,808)PSA Jade: Earned 10,000,000 credits (10,038,118)
Message 70865 - Posted: 14 Nov 2013 | 1:43:15 UTC

As far as I know, nothing has been changed on our side that should affect the PPS sieve run times.
____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

John10051
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Joined: 16 Dec 12
Posts: 2
ID: 185186
Credit: 290,703,747
RAC: 0
321 LLR Bronze: Earned 10,000 credits (14,915)Cullen LLR Bronze: Earned 10,000 credits (20,444)PPS LLR Silver: Earned 100,000 credits (344,280)PSP LLR Silver: Earned 100,000 credits (110,750)SoB LLR Bronze: Earned 10,000 credits (86,606)SGS LLR Silver: Earned 100,000 credits (225,271)TRP LLR Bronze: Earned 10,000 credits (33,233)Woodall LLR Bronze: Earned 10,000 credits (51,149)PPS Sieve Double Silver: Earned 200,000,000 credits (285,719,218)TRP Sieve (suspended) Silver: Earned 100,000 credits (349,962)GFN Ruby: Earned 2,000,000 credits (3,744,145)
Message 70871 - Posted: 14 Nov 2013 | 4:55:35 UTC

Hi DeleteNull,
Yes, you are right. I have updated Nvidia driver to 311.20.
The Run time (sec) of my computers with GTX660ti have restored to 715. 23 sec.

So the best combination is Linux kernel 3.11 with driver 331.20!

Thank you very much.

Message boards : Proth Prime Search : What happen, PPS Sieve Slow down.

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