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Message boards : Proth Prime Search : OSX 10.10.5 + GTX 680

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Van ZimmermanProject donor
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Joined: 30 Aug 12
Posts: 1950
ID: 168418
Credit: 6,027,212,190
RAC: 241,078
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 Sapphire: Earned 20,000,000 credits (27,444,825)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 (4,415,904,413)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 87478 - Posted: 25 Aug 2015 | 16:36:00 UTC

I typically run 8 concurrent pps sieve threads on my gtx 680 in a mac pro 3,1. I was getting run times of approx. 4200 seconds each. After upgrading from 10.10.4 to 10.10.5, these run times have gone to approx. 5200 seconds each. Switching to/from nvidia vs. mac drivers doesn't help, and upgrading cuda didn't help.

Anyone else notice this? Its a pretty big hit.

Box is a dedicated cruncher, so its not like anything else is/should be happening on it.

Van ZimmermanProject donor
Volunteer moderator
Project administrator
Volunteer tester
Project scientist
Send message
Joined: 30 Aug 12
Posts: 1950
ID: 168418
Credit: 6,027,212,190
RAC: 241,078
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 Sapphire: Earned 20,000,000 credits (27,444,825)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 (4,415,904,413)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 87487 - Posted: 25 Aug 2015 | 22:07:46 UTC - in response to Message 87478.
Last modified: 25 Aug 2015 | 22:31:47 UTC

I confirmed this on a second identical machine. Mac or nvidia driver (10.4.2 310.41.35f01, as old version ceases to work once 10.10.5 installed). Cuda 7.0.36 or 7.0.64.

[Doh].

I assumed, apparently incorrectly, that installing the new nvidia web driver would automatically select the nvidia web driver upon the reboot it insists on, as I thought had been past behavior. This assumption was embarrassingly incorrect. My apologies. Forcing it to switch and giving it dirty looks while rebooting appears to have restored the expected behavior.

Message boards : Proth Prime Search : OSX 10.10.5 + GTX 680

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