mersenneforum.org  

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

Reply
 
Thread Tools
Old 2013-01-06, 22:41   #2014
Roy_Sirl
 
Roy_Sirl's Avatar
 
Sep 2002
Cornwall, UK

2×5 Posts
Default

Excellent - a red letter day indeed! Many thanks to all those involved.
Roy_Sirl is offline   Reply With Quote
Old 2013-01-06, 22:49   #2015
swl551
 
swl551's Avatar
 
Aug 2012
New Hampshire

11001010002 Posts
Default Outstanding

Fasther throughput on i5 (bottlnecked with 4 instances using 0.19)
CPU doesn't even throttle up (power draw 6.4 watts)
LOWER overall system power consumption by 100 watts!



OUTSTANDING RESULTS!

Oh and nvidia 310.90 just came out.
Attached Thumbnails
Click image for larger version

Name:	outstanding.PNG
Views:	122
Size:	236.4 KB
ID:	9100  
swl551 is offline   Reply With Quote
Old 2013-01-06, 22:57   #2016
firejuggler
 
firejuggler's Avatar
 
Apr 2010
Over the rainbow

47538 Posts
Default

Geforce 560, option by default, 200 Ghz-d by day
Attached Thumbnails
Click image for larger version

Name:	mfact0.20.jpg
Views:	116
Size:	79.4 KB
ID:	9101  
firejuggler is offline   Reply With Quote
Old 2013-01-06, 23:01   #2017
kladner
 
kladner's Avatar
 
"Kieren"
Jul 2011
In My Own Galaxy!

2×3×1,693 Posts
Default

Still running -st2 on both GPUs. GTX 570 at about 55%, 460 about 75%. Affinity not set. CPU at about 20-25%. The 570 finished. With the 460 still running it's pulling 10-12% CPU.

EDIT: Now running an assignment on the 570, and there is negligible CPU usage for that instance. Just -st2 is using more CPU.

Last fiddled with by kladner on 2013-01-06 at 23:06
kladner is offline   Reply With Quote
Old 2013-01-06, 23:05   #2018
TheJudger
 
TheJudger's Avatar
 
"Oliver"
Mar 2005
Germany

100010101112 Posts
Default

Quote:
Originally Posted by kladner View Post
Still running -st2 on both GPUs. GTX 570 at about 55%, 460 about 75%. Affinity not set. CPU at about 20-25%. The 570 finished. With the 460 still running it's pulling 10-12% CPU.
-st/-st2 tests both, CPU-sieve and GPU-sieve kernels.

Oliver
TheJudger is offline   Reply With Quote
Old 2013-01-07, 00:02   #2019
Chuck
 
Chuck's Avatar
 
May 2011
Orange Park, FL

88610 Posts
Default

Quote:
Originally Posted by swl551 View Post
Fasther throughput on i5 (bottlnecked with 4 instances using 0.19)
CPU doesn't even throttle up (power draw 6.4 watts)
LOWER overall system power consumption by 100 watts!



OUTSTANDING RESULTS!

Oh and nvidia 310.90 just came out.
I upgraded to 310.70 two weeks ago, and it gave me slightly poorer performance (with the non-GPU sieving mfaktc) than the earlier 306.97 version. I reverted back to the earlier version. I guess I could change drivers again with this new mfaktc and see what the results are.

Chuck
Chuck is offline   Reply With Quote
Old 2013-01-07, 00:07   #2020
swl551
 
swl551's Avatar
 
Aug 2012
New Hampshire

80810 Posts
Default

Quote:
Originally Posted by Chuck View Post
I upgraded to 310.70 two weeks ago, and it gave me slightly poorer performance (with the non-GPU sieving mfaktc) than the earlier 306.97 version. I reverted back to the earlier version. I guess I could change drivers again with this new mfaktc and see what the results are.

Chuck
310.70 had a short life, suggesting it did have some problems.
swl551 is offline   Reply With Quote
Old 2013-01-07, 00:21   #2021
kladner
 
kladner's Avatar
 
"Kieren"
Jul 2011
In My Own Galaxy!

2·3·1,693 Posts
Default

Quote:
Originally Posted by swl551 View Post
Oh and nvidia 310.90 just came out.

310.70 had a short life, suggesting it did have some problems.
That's very good to know. Thanks! I'm running 310.70, but will upgrade.

@ Oliver- Thanks for the explanation. I'm now running assignments on both cards:

Code:
64.8M 69-73 assignments -both cards
GTX 570 6.004s 415 GHz-D/D  GPU 95%  823 MHz  71 C
GTX 460 12.135s  205 GHz-D/D  GPU 98%  830 MHz  70 C
CPU is essentially idle.

The temperatures above are about 2-3 C higher than with 4 instances of mfaktc 0.19 on the 570, and 2 instances on the 460. Considering that the CPU is idle, they seem to be working harder. On the other hand, a cool CPU means that the case fans throttled back.

This looks like a big jump in throughput, and I haven't even gotten P95 running yet. I now have up to six cores to run P-1, or something.
kladner is offline   Reply With Quote
Old 2013-01-07, 00:59   #2022
swl551
 
swl551's Avatar
 
Aug 2012
New Hampshire

23×101 Posts
Default comparison

0.19 running 4 instances on GTX-570 988mv@850mhz with i7-2600k @ 4.2ghz
yielded 118ghzDay per instance = 472ghzDay total


0.20 running 1 instance on GTX-570 988mv@850mhz with i7-2600k @ 4.2ghz
yielding 427ghzDay. down 45ghzDay


However on my i5 2500k 0.20 increased by 25ghzDay compared to 0.19. (cpu was bottlenecked)

Last fiddled with by swl551 on 2013-01-07 at 01:00
swl551 is offline   Reply With Quote
Old 2013-01-07, 01:03   #2023
kracker
 
kracker's Avatar
 
"Mr. Meeseeks"
Jan 2012
California, USA

1000011110012 Posts
Default

Quote:
Originally Posted by swl551 View Post
0.20 running 1 instance on GTX-570 988mv@850mhz with i7-2600k @ 4.2ghz
yielding 427ghzDay. down 45ghzDay
But now maybe you can run something on the cpu!

EDIT: Er, that is using the part of da cpu that 0.19 *used* to take.

Last fiddled with by kracker on 2013-01-07 at 01:06
kracker is offline   Reply With Quote
Old 2013-01-07, 01:50   #2024
kladner
 
kladner's Avatar
 
"Kieren"
Jul 2011
In My Own Galaxy!

236568 Posts
Default

With 6x 0.19 on the 570, and 2x on the 460 I was getting a combined GHz-D/D of 530-535 (per mfaktc readings). With 2.0 (32 bit -slightly better than 64 bit) those mfaktc readings total about 625 GHz-D/D with 1 instance per GPU. I now have 5 workers running P-1 in P95. This last item did not seem make any difference in the mfaktc 2.0 performance.

EDIT: [OT]PrimeNet still keeps sticking in 1 DC assignment (Worker #3) to 4 P-1s in P95. All the settings I can find, both online and in P95, are set to P-1. I have worked around this by moving all the assignments from the other 4 workers to Worker #3. This stops #3 from getting more assignments for now, and the other 4 then fill in with P-1s.[/OT]

EDIT2: Sieve is running 82,485 on both GPUs, with SievePrimesAdjust=1. Otherwise the settings are default except for CheckpointDelay=300, Stages=0, and StopAfterFactor=2.

Last fiddled with by kladner on 2013-01-07 at 02:10
kladner is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
mfakto: an OpenCL program for Mersenne prefactoring Bdot GPU Computing 1668 2020-12-22 15:38
The P-1 factoring CUDA program firejuggler GPU Computing 753 2020-12-12 18:07
gr-mfaktc: a CUDA program for generalized repunits prefactoring MrRepunit GPU Computing 32 2020-11-11 19:56
mfaktc 0.21 - CUDA runtime wrong keisentraut Software 2 2020-08-18 07:03
World's second-dumbest CUDA program fivemack Programming 112 2015-02-12 22:51

All times are UTC. The time now is 06:33.

Tue Apr 20 06:33:05 UTC 2021 up 12 days, 1:13, 0 users, load averages: 3.09, 3.33, 3.19

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.