Message boards :
Graphics cards (GPUs) :
half a GTX295
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Send message Joined: 12 Jul 07 Posts: 100 Credit: 21,848,502 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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Is there any way I can tell boinc to only use 1 core of my GTX295? My gtx295 runs under linux and since the recent compute capability upgrade device #1 fails every WU while device #0 works fine. I've tried all available drivers (185.18.14, 185.18.31 & 190.18) but they all fail on device #1 I've been babysitting it recently, suspending all but 1 WU and although that works fine but I'd prefer boinc to do it itself. So, untill there's a driver that works for my setup, does anyone know if there's some method of telling boinc to only use cuda device #0 ? |
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Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
No.. because that would lead to micro management *duck* MrS Scanning for our furry friends since Jan 2002 |
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Send message Joined: 28 Aug 09 Posts: 4 Credit: 2,179,800 RAC: 0 Level ![]() Scientific publications
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Is there any way I can tell boinc to only use 1 core of my GTX295? You can do this if you tell BOINC to use 50% of your processors. I do this with my i7 - at any time it uses four threads and one GPU. Try it out... R |
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Send message Joined: 12 Jul 07 Posts: 100 Credit: 21,848,502 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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So, untill there's a driver that works for my setup, does anyone know if there's some method of telling boinc to only use cuda device #0 ?You can do this if you tell BOINC to use 50% of your processors. I do this with my i7 - at any time it uses four threads and one GPU. thanks R I gave this a quick try this morning, c2q and gtx295 and it cut the CPU down to 2 WUs but still allowed 2 GPU WUs (the 2nd of which promptly failed). I'll have a play with different %'s tonight |
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Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
I'll have a play with different %'s tonight You must not use any value higher than 50%. MrS Scanning for our furry friends since Jan 2002 |
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Send message Joined: 12 Jul 07 Posts: 100 Credit: 21,848,502 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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I'll have a play with different %'s tonight I had a play with this, with 49% 1 got 1 CPU WU but still 2 GPU WUs 24% didn't cause a benchmark and had no effect. I've gone back to 75% and use a script at 4am to suspend the current WU and resume a fresh one |
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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theirs no option in boinc yet as to limit or %'s of gpu. hopefully in 6.10 that will change. or v7. |
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Send message Joined: 12 Jul 07 Posts: 100 Credit: 21,848,502 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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I'm not sure what I've done, I've tried no end of things but my GTX295 is now running successfully both on cores. Some of the last things I tried were setting ownership on /dev/nvidia[01] to the same as boinc and upgrading the nvidia drivers to 190.32. If I were to hazzard a guess, I'd say it was changing ownership that did the trick. Now I've just got to get gpu #1 to run all full speed. It's stuck at performance level 0 (300MHz GPU & 100MHz memory) whereas gpu #0 is at level 2 (576MHz & 999MHz). nvidia-settings just flatly refuses to adjust it and nvclock complains Coolbits isn't set even though it is :? At least I don't have to babysit it any more :) |
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