Message boards : Graphics cards (GPUs) : Q9550 using 3 cpu theads & 1 gpu thread ?
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Is this the way it is supposed to run? I thought I would be using 4 cpu threads and 1 gpu thread. | |
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 Krunchin-Keith [USA] Send message Joined: 17 May 07 Posts: 512 Credit: 111,288,061 RAC: 0 Level  Scientific publications     | |
Is this the way it is supposed to run? I thought I would be using 4 cpu threads and 1 gpu thread. Yes. The project can vary how much CPU is allocated. Currently it is set to use 1 CPU, although it only actually uses something like 4% or less of 1 CPU (or core). We are still studying which way has the best performance. Clients 6.3.14 and up will show you next to Running how much CPU/CUDA is allocated. If you want to run 4 CPU + 1 CPU/CUDA you can by using the ncpus+1 trick, amking BOINC think you have 5 CPU's. 1 CPU will ahve to share a little. See other threads which cover this. | |
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Thanks Keith I will surf some more....now the grid task has paused and am back to 4 CPU's...I intended it to run ncpu4+1gpu and let the gpu stand alone so I need to configure it I guess | |
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Krunchin-Keith [USA] Send message Joined: 17 May 07 Posts: 512 Credit: 111,288,061 RAC: 0 Level Scientific publications | |
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I should mention, if its not in the other threads, running ncpus+1 has a drawback. If your resource shares are too low for the GPU project, or the GPU project runs out of work, you will end up with 5 CPU tasks running, the drawback being 2 of them will be sharing a CPU core and not running at full speed. This may be OK for a short term, but if your are going to be out of GPU work for a long period you may want to go back to no ncpus setting. | |
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Message boards : Graphics cards (GPUs) : Q9550 using 3 cpu theads & 1 gpu thread ?
