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Message boards : Number crunching : gpu primes ? or only cpu primes ?

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Profile scottishwebcamslive.com
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Joined: 26 Jun 06
Posts: 11
ID: 3074
Credit: 225,178,654
RAC: 0
PPS Sieve Double Silver: Earned 200,000,000 credits (225,178,628)
Message 36468 - Posted: 27 May 2011 | 5:39:09 UTC

Hi,
something i never thought of and may have been missed by me seeing as i only use gpu's and not any cpu's on this project
do you get gpu primes ? or are they alot harder to find or am i never going to find one while only using my GPU's to do work here ?

best regards
Ian

Profile HammehProject donor
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ID: 31582
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Discovered 1 Fermat divisorPPS LLR Bronze: Earned 10,000 credits (11,534)SGS LLR Bronze: Earned 10,000 credits (66,436)321 Sieve (suspended) Bronze: Earned 10,000 credits (34,150)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (118,830)PPS Sieve Ruby: Earned 2,000,000 credits (3,857,433)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (12,667)PSA Silver: Earned 100,000 credits (250,466)
Message 36469 - Posted: 27 May 2011 | 7:06:10 UTC
Last modified: 27 May 2011 | 7:06:25 UTC

The are currently no GPU Prime Searches running on the BOINC platform, only sieves. LLR CUDA is available on PRPNet for GPU Prime Searches (see here.).
LLR CUDA requires a double precision GPU. Double precision GPUs are nvidia GTX 260 or above/newer.

Peter
____________

My Top 5000 Primes:
110059!+1 is prime! (FPS)
14493618614235*2^666666-1 is prime! (SGS)

ZydorProject donor
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Message 36470 - Posted: 27 May 2011 | 7:06:14 UTC - in response to Message 36468.
Last modified: 27 May 2011 | 7:15:33 UTC

There's only GPU apps for a couple of Sieve Projects at PG at present (PPS and Cullen/Woodall. CUDA for both, but AMD only works on PPS Sieve at present.

I did see a brief comment somewhere a while back about the possiblity of someone winding up a LLR GPU app, not sure which Project - I think PPS LLR - but nothing heard since. Given the effort and time it takes to do it however, the latter is not surprising, and if its still intended probably be a while yet.

EDIT: oppps .... cross posted there, sorry. See above re my last para which is obviously out of date ..... is that PRPNet Cuda app up and running now??

Regards
Zy

Message boards : Number crunching : gpu primes ? or only cpu primes ?

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