Message boards :
Number crunching :
rising and falling gpu usage while crunching[solved]
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AI4FR Send message Joined: 13 Apr 11 Posts: 57 Credit: 23,590,991 RAC: 0 |
I have two 580's in one of my PC's and had the same problem as you did. When seti would send shorties, the gpu's would run fine at 99%. Otherwise I ran into your issue. I tried 1,2,3, and 4 wu's per gpu. I finally settled on 3. But I had to drop a few cores(6-HT). I now run 3 gpu wu's per card and 6 cpu cores. GPU's run at 98-99% and cpu usage is around 60 or so. My cpu utilizes hyper-threading which I think is the issue. I have not tried it with HT off. My other machines without HT has no issues at all. The GTX 550's run 3 wu's at a time and all of the cpu. Usage is 99% for gpu and 100% for cpu. For anyone wondering if dropping a cpu core will help in their machine, simply suspend cpu work while noting gpu usage. Good luck. http://www.AI4FR.com |
zoom3+1=4 Send message Joined: 30 Nov 03 Posts: 65689 Credit: 55,293,173 RAC: 49 |
I have two 580's in one of my PC's and had the same problem as you did. When seti would send shorties, the gpu's would run fine at 99%. Otherwise I ran into your issue. I tried 1,2,3, and 4 wu's per gpu. I finally settled on 3. But I had to drop a few cores(6-HT). I now run 3 gpu wu's per card and 6 cpu cores. GPU's run at 98-99% and cpu usage is around 60 or so. My cpu utilizes hyper-threading which I think is the issue. I have not tried it with HT off. Thanks, I just need to wait until I can get an i7 870 or an i7 875K cpu in about September, that's the best I can do until then, My 2nd PC won't be online until I have a lot more parts, but it's a custom water cooled rig. The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's |
zoom3+1=4 Send message Joined: 30 Nov 03 Posts: 65689 Credit: 55,293,173 RAC: 49 |
Issue solved, I'm unsubscribing from the thread now. The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's |
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