mersenneforum.org  

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

Reply
 
Thread Tools
Old 2013-03-16, 01:34   #243
Redarm
 
Redarm's Avatar
 
Apr 2012
Berlin Germany

638 Posts
Default

314.21 beta available
Redarm is offline   Reply With Quote
Old 2013-03-16, 16:27   #244
Brain
 
Brain's Avatar
 
Dec 2009
Peine, Germany

331 Posts
Default Efficiency table: FFT length and Titan

Quote:
Originally Posted by Brain View Post
In preparation for a new table with efficient FFT lengths I ran the CUDALucas cufftbench on a 810MHz/2500MHz Titan.

Code:
rem 1048576    8388608    16777216
rem         8421376    16809984    16842752
e:
cd E:\Eigene Dateien\Computing\CUDALucas\2.03\D0
CUDALucas-2.03-5.0-sm_35-x64.exe -cufftbench 1048576 16842752 65536
CUDALucas-2.03-5.0-sm_35-x64.exe -cufftbench 1048576 8421376 32768 > bench_1M-8M.txt
CUDALucas-2.03-5.0-sm_35-x64.exe -cufftbench 8388608 16809984 32768 > bench_8M-16M.txt
pause
Okay, here a very first result file. Windows/Excel CSV format, no comments please. ;-)
Sorted descending by efficiency. Single cufftbench run on my Titan. Only 1M-16M fft length.
I will do more runs and average the results. Additionally, length up to 20M for 332M expos. But I will be on vacation for a week so I'll post this.
Attached Files
File Type: zip efficiency_1M-16M.csv.zip (4.4 KB, 46 views)
Brain is offline   Reply With Quote
Old 2013-03-16, 16:57   #245
Brain
 
Brain's Avatar
 
Dec 2009
Peine, Germany

331 Posts
Default

Quote:
Originally Posted by Redarm View Post
314.21 beta available
Nothing with regard to CUDA !?!
http://us.download.nvidia.com/Window...ease-notes.pdf
Brain is offline   Reply With Quote
Old 2013-03-18, 07:58   #246
Karl M Johnson
 
Karl M Johnson's Avatar
 
Mar 2010

3·137 Posts
Default

Quote:
Originally Posted by Brain View Post
Yeah, it was aimed at improving Tomb Raider's performance.
Shesh, people using their GPUs for games

Last fiddled with by Karl M Johnson on 2013-03-18 at 08:56
Karl M Johnson is offline   Reply With Quote
Old 2013-03-22, 12:16   #247
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

166258 Posts
Default

A request for someone with a Titan:

What GHz-days/day do you get for the usual first-time TF (~62.5M) using

GPUSieveSize=128
GPUSieveProcessSize=8

and

GPUSieveSize=4
GPUSieveProcessSize=8

Approximate temperatures would be appreciated as well, along with any other info that is interesting. (GPU load would be very interesting.)

Thanks!

Xyzzy is offline   Reply With Quote
Old 2013-03-22, 16:03   #248
Redarm
 
Redarm's Avatar
 
Apr 2012
Berlin Germany

3·17 Posts
Default

GPUSieveSize=128
GPUSieveProcessSize=8
GHz-days/day 439.5

http://gpuz.techpowerup.com/13/03/22/rk.png

GPUSieveSize=4
GPUSieveProcessSize=8
GHz-days/day 324.5

http://gpuz.techpowerup.com/13/03/22/34.png

Last fiddled with by Redarm on 2013-03-22 at 16:06 Reason: added images
Redarm is offline   Reply With Quote
Old 2013-03-23, 01:49   #249
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

7,573 Posts
Default

Thanks!

Xyzzy is offline   Reply With Quote
Old 2013-03-23, 02:32   #250
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

7,573 Posts
Default

It looks like we have a Titan enroute to us.



We do not know if we will keep both or sell either the GXT690 or the Titan.

We anticipate keeping both so we ordered a larger power supply, which was on sale plus it had an additional discount. We have been real happy with our AX650 so we ordered the AX850.

$199.99 - $30.00 - 20% and a $15 rebate! (20% off w/ promo code DYMCASE, ends 3/27)
Xyzzy is offline   Reply With Quote
Old 2013-03-23, 08:39   #251
LaurV
Romulan Interpreter
 
LaurV's Avatar
 
Jun 2011
Thailand

5·11·157 Posts
Default

given your history (of selling "tons" of gtx570 at a very cheap price), if you ever decide to sell, give me a sign

I pay the international shipping :smilw:
LaurV is offline   Reply With Quote
Old 2013-03-23, 12:26   #252
Chuck
 
Chuck's Avatar
 
May 2011
Orange Park, FL

15158 Posts
Default

Quote:
Originally Posted by Xyzzy View Post
It looks like we have a Titan enroute to us.



We do not know if we will keep both or sell either the GXT690 or the Titan.
I'll be interested in hearing your comments on the Titan fan noise — I see it has the blower on one end like the 580. The 690 is so quiet since the fan is in the center and the exhaust air comes out of each end.
Chuck is offline   Reply With Quote
Old 2013-03-24, 13:50   #253
nucleon
 
nucleon's Avatar
 
Mar 2003
Melbourne

5×103 Posts
Default

Initially, I thought the fans were loud.

But now I'm used to them.

Some points, I can play starcraft2 while cudalucas runs in background. Performance hit is minimal. Per 1M iterations - 41mins with starcraft2, 31mins without. I'll check when finished to make sure results match.

Tip for newbie - extend the write times. I had write checkpoints every 10k iterations. My SSD was continually writing. Probably not good for endurance :) I've pushed that out to 1M so as to be close to 30mins.

I have 3x utilities running to monitor the card - all say different memory speeds. :) GPUz - 1250MHz, MSI afterburner - 2500MHz, GPU shark - 2000MHz. I've done the set to 2500MHz via using -500MHz setting in MSI AB.

When under SLI, the cards seem to be set to reduced DP FP. So you need to split the SLI to get full DP FP performance.

You can push GTX580s to almost 100degC, but Titans complain above 80degC.

-- Craig
nucleon is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Titan's Best Choice Brain GPU Computing 30 2019-10-19 19:19
Titan Black ATH Hardware 15 2017-05-27 22:38
Is any GTX 750 the GeForce GTX 750 Ti owner here? pepi37 Hardware 12 2016-07-17 22:35
Nvidia announces Titan X ixfd64 GPU Computing 20 2015-04-28 00:27
2x AMD 7990 or 2x Nvidia Titan ?? Manpowre GPU Computing 27 2013-05-12 10:00

All times are UTC. The time now is 03:14.

Tue Aug 4 03:14:52 UTC 2020 up 17 days, 23:01, 0 users, load averages: 1.51, 1.71, 1.59

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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.