mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Hardware > GPU Computing

View Poll Results: I use my GPU for...
Trial Factoring with mfaktc 16 69.57%
Lucas-Lehmer tests with CUDALucas 9 39.13%
something else (maybe describe in answer) 6 26.09%
Multiple Choice Poll. Voters: 23. You may not vote on this poll

Reply
 
Thread Tools
Old 2011-04-11, 20:37   #1
Brain
 
Brain's Avatar
 
Dec 2009
Peine, Germany

331 Posts
Default GPU Usage

I'd like to find out how many people out there do GPU work, especially for PrimeNet. As far as I know, there are mfaktc, CUDALucas, llrCUDA and genefer (all CUDA) and early trials in OpenCL. PrimeNet accepts the first two. So here's the poll:
Brain is offline   Reply With Quote
Old 2011-04-11, 20:42   #2
Brain
 
Brain's Avatar
 
Dec 2009
Peine, Germany

331 Posts
Default Work distribution

80% CUDALucas, 20% mfaktc. The latter mainly for score hunting.
Brain is offline   Reply With Quote
Old 2011-04-11, 21:48   #3
vsuite
 
Jan 2010

11100102 Posts
Default

Initially only mfaktc
Now CudaLucas mainly (since they take so long to finish) and short bursts of mfaktc (sometimes running same time as CudaLucas, sharing the GPU).
vsuite is offline   Reply With Quote
Old 2011-04-12, 04:00   #4
Christenson
 
Christenson's Avatar
 
Dec 2010
Monticello

70316 Posts
Default

GEForce 210 (cheap, not bought for GIMPS) on a dual-core Pentium 4, doing only mfaktc, doing 53M exponents to depth 72. Runs about 5M factors per second, haven't found out how to make it coexist well with normal console use (writing programs, editing, browsing, running autocad viewer) on that machine, so mfaktc doesn't run if I'm doing work on it. I report results once or twice a week to GIMPS.

Bunch of other non-GPU machines ATM, 2 at home including 6-core Phenom II, 4 at UVA of various vintages plugging away at ECM, P-1, LL-D, and LL. One more, about 5 years old at home, need to get xubuntu running on it, have been too distracted to get done. All report to GIMPS, though NSF@home might start getting some cycles as they factor such numbers as M1061.

TF no longer makes sense except on a GPU.

Last fiddled with by Christenson on 2011-04-12 at 04:07 Reason: GEForce210 is *not* a high-end GPU, just a cheap way to get dualview.
Christenson is offline   Reply With Quote
Old 2011-04-12, 08:39   #5
xilman
Bamboozled!
 
xilman's Avatar
 
"π’‰Ίπ’ŒŒπ’‡·π’†·π’€­"
May 2003
Down not across

2·3·5·353 Posts
Default

My gpu-usage falls neatly into two categories: polynomial searching for GNFS in my leisure activities and CUDA software development in professional life.


Paul
xilman is offline   Reply With Quote
Old 2011-04-12, 09:39   #6
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

12C216 Posts
Default

Mfaktc, CUDALucas and ppsieve
ET_ is offline   Reply With Quote
Old 2011-04-12, 13:22   #7
Honza
 
Honza's Avatar
 
Feb 2011

101002 Posts
Default

Now only TPSieve; some CUDALLR and GeneferCUDA earlier.
Honza is offline   Reply With Quote
Old 2011-04-12, 13:40   #8
diep
 
diep's Avatar
 
Sep 2006
The Netherlands

26×11 Posts
Default

Quote:
Originally Posted by Brain View Post
I'd like to find out how many people out there do GPU work, especially for PrimeNet. As far as I know, there are mfaktc, CUDALucas, llrCUDA and genefer (all CUDA) and early trials in OpenCL. PrimeNet accepts the first two. So here's the poll:
Brain this is impossible to figure out statistics on gpu computing in a commercial manner; those who have software well to work at gpu's, they really don't want to make any noise and profit from it bigtime. Furthermore AMD/ATI and Nvidia really obfuscate what happens there as well, let me politely call it incompetence driven by greed.

If they know anyhow what happens over there; if a company orders a couple of thousands of gpu's then obviously they're not going to spam entire planet for that. Relatively seen price is so low. What is it, if you buy a 1000 at a time, you're looking at under half a million dollar; compare a single 8 socket box Xeon already is a similar price when fully configured.

The only 'victims' of this is the open source community so to speak, at which also many public scientists depend; they have no clue what already happened there past decades in gpu computing.

So the real successtories you will never hear about, as that has direct consequences for the persons involved. GPU programming in itself is not new. Already somewhere start 90s there were GPU type arrays you could buy for not too much, which for specific type of work total outgunned any supercomputer.

The arrival of bigger caches lately and the huge number of cores and huge power budgets now have made it attractive to do gpuwork at home for the hobbyists.

Please note more and more applications slowly start to use it as well, yet because of the obscurity and big greed in which things have been going, it really doesn't get used as much as i thought it would happen.

It's the big commercial companies with unlimited need for computational power that already use them for years. There is very few jobs though where they openly write that they need a GPU expert to program their stuff.

Vincent

Last fiddled with by diep on 2011-04-12 at 13:43
diep is offline   Reply With Quote
Old 2011-04-12, 15:49   #9
TheJudger
 
TheJudger's Avatar
 
"Oliver"
Mar 2005
Germany

111110 Posts
Default

mfaktc (not really a surprise, is it?) Most of the time I'm running -pre releases (last stage of my test procedure).

Oliver

Last fiddled with by TheJudger on 2011-04-12 at 15:49
TheJudger is offline   Reply With Quote
Old 2011-04-12, 22:25   #10
Christenson
 
Christenson's Avatar
 
Dec 2010
Monticello

5×359 Posts
Default

@diep:
I don't think Brain has any issues with the limitations of his poll, which go well beyond what you identified. Think "informal poll" and "rough guesstimate"...not "precise mathematics"
Christenson is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Low CPU/GPU usage? GeoffreyY Msieve 23 2017-02-17 18:01
GMP-ECM resource usage lavalamp Software 0 2010-10-11 20:46
High CPU usage Primix Hardware 2 2008-07-20 23:44
Usage of GMP-ECM ECMFreak Factoring 13 2007-07-20 17:34
CPU usage Unregistered Software 6 2003-11-19 07:05

All times are UTC. The time now is 16:35.

Thu Mar 4 16:35:57 UTC 2021 up 91 days, 12:47, 0 users, load averages: 2.55, 2.25, 2.26

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.