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SETI applications for NVIDIA GPU improvement - how you can help
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Zalster Send message Joined: 27 May 99 Posts: 5517 Credit: 528,817,460 RAC: 242 |
Not seen a lot of improvement with both in the commandline. Few seconds improvement Normal AR http://setiathome.berkeley.edu/result.php?resultid=5134899382 WU true angle range is : 0.445407 Run time 4 min 1 sec CPU time 3 min 55 sec http://setiathome.berkeley.edu/result.php?resultid=5135025942 WU true angle range is : 0.432571 Run time 4 min 6 sec CPU time 3 min 39 sec VLARs http://setiathome.berkeley.edu/result.php?resultid=5134892915 WU true angle range is : 0.010503 Run time 7 min 7 sec CPU time 7 min 4 sec http://setiathome.berkeley.edu/result.php?resultid=5134893156 WU true angle range is : 0.011400 Run time 7 min 20 sec CPU time 7 min 18 sec |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
any noticeable improvement could be only on VLAR cause it's PulseFind area and VLAR is where PulseFind dominates. SETI apps news We're not gonna fight them. We're gonna transcend them. |
robertmiles Send message Joined: 16 Jan 12 Posts: 213 Credit: 4,117,756 RAC: 6 |
Raistmer, suggestions for future improvements: Check if Nvidia OpenCL offers a way for an application to check the temperature of its GPU. If so, occasionally check it, and print the maximum value somewhere in stderr. This should make overheating as a cause of problems more obvious. Also, when the Task postponed: Suspicious spike results notice is issued, mention it in stderr to help identify which task it was from. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
We have 8.18 deployed on beta, test please. Hopefully they are new RC for main. SETI apps news We're not gonna fight them. We're gonna transcend them. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Raistmer, suggestions for future improvements: There is no temperature reading interface in OpenCL. Also, no need to link to particular task in general, What is needed is the knowledge that smth wrong with computational device. One could look into tasks list and see what task is postponed. SETI apps news We're not gonna fight them. We're gonna transcend them. |
J. Mileski Send message Joined: 9 Jun 02 Posts: 632 Credit: 172,116,532 RAC: 572 |
We have 8.18 deployed on beta, test please. Hopefully they are new RC for main. I have switched 2 of my computers to beta, the first is a xeon E5-2670 8 core 16 thread with 2 GTX 750ti's the other is an AMD 1090T 6 core with 3 GTX 550ti's I've got 2 gt 240, here on an E8500 core2duo, but the newest driver available from Nvidia is 241.96, I do not believe it is new enough for your open CL apps. |
Kiska Send message Joined: 31 Mar 12 Posts: 302 Credit: 3,067,762 RAC: 0 |
We have 8.18 deployed on beta, test please. Hopefully they are new RC for main. Latest version for GTS 240(which I am assuming, couldn't find GT 240) is 337.88, which is located here for windows Which does not result in invalids |
robertmiles Send message Joined: 16 Jan 12 Posts: 213 Credit: 4,117,756 RAC: 6 |
Raistmer, suggestions for future improvements: Writing that something is wrong with the GPU, with no checkable hint on what, does not help me find the problem. I am NOT going to get another 560 to try instead. As for postponed tasks, that seldom lasts long enough for me to find time for looking at the tasks list. |
J. Mileski Send message Joined: 9 Jun 02 Posts: 632 Credit: 172,116,532 RAC: 572 |
We have 8.18 deployed on beta, test please. Hopefully they are new RC for main. No, it is not a GTS 240, it really is a GT240 |
Wiggo Send message Joined: 24 Jan 00 Posts: 36774 Credit: 261,360,520 RAC: 489 |
Those GT 240's are using the latest (341.96, I noticed the typo) and very likely the last driver you'll be able to use with them as all pre Fermi GPU's are now regarded by Nvidia as legacy products so they will not be releasing anymore driver updates for them. Cheers. |
J. Mileski Send message Joined: 9 Jun 02 Posts: 632 Credit: 172,116,532 RAC: 572 |
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Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Here https://cloud.mail.ru/public/5Kth/LJGfW7s5i is new builds, r3528. Please test if both recently found issues (CL file compilation, high prec timer omission in low-perth path) are fixed. SETI apps news We're not gonna fight them. We're gonna transcend them. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Finally, cards kindly donated by Mr. Kevvy and those shipment was organized and carried by Mike received and tested. Both in fine working condition. I would like to thank you both, Mr. Kevvy and Mike, for this action. Hope it will help to make some new discoveries on NV-specific optimization path. Thank you! SETI apps news We're not gonna fight them. We're gonna transcend them. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
And first results: both GTX460SE and GTX570 confirmed compilation issue on PTX level for 8.18 NV build (errors wording is different but both failed to build CL file). Also confirmed that r3528 is free from this issue. SETI apps news We're not gonna fight them. We're gonna transcend them. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
8.19 (r3528) is deployed on beta. Please test. SETI apps news We're not gonna fight them. We're gonna transcend them. |
robertmiles Send message Joined: 16 Jan 12 Posts: 213 Credit: 4,117,756 RAC: 6 |
And first results: Does r3500 share this problem or is it with some change since r3500? Does it affect the beta4 now under test? |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
And first results: r3500 doesn't have it. r3528 doesn't have it too (8.19) SETI apps news We're not gonna fight them. We're gonna transcend them. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Just remind: the more different hosts will participate in beta currently the earlier we will be able to get main updated. I would recommend to switch most computational resourses to beta for 1-2 next weeks. SETI apps news We're not gonna fight them. We're gonna transcend them. |
AMDave Send message Joined: 9 Mar 01 Posts: 234 Credit: 11,671,730 RAC: 0 |
Are there any default settings for switches (ex  -sbs N where N=128) of which we should be aware? |
Jimbocous Send message Joined: 1 Apr 13 Posts: 1856 Credit: 268,616,081 RAC: 1,349 |
I would recommend to switch most computational resourses to beta for 1-2 next weeks. There goes my RAC :) You got it ... |
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