Processor Affinity on multiprocessor computer


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Questions and Answers : Preferences : Processor Affinity on multiprocessor computer

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Message 12719 - Posted: 27 Jul 2004, 13:37:23 UTC

Is it possible to set somehow? As I have experiences from S@H1 it hase effect to speed up one WU processing by about 15% if every WU is running on it's own CPU.
I checked in Task Manager and I see that both seti@home clients are running on both processor, which as I know and wrote above is not a good solution.



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John McLeod VII
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Message 12740 - Posted: 27 Jul 2004, 14:17:52 UTC

Not yet. This has been discussed, but it seems to help multi processors, and hurt hyperthreaded machines. So it needs to be an option somehow.

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Message 12989 - Posted: 28 Jul 2004, 5:29:35 UTC - in response to Message 12740.

Are somewhere more details about it? Seems like my hyperthreaded P4 works well when I set processor affinity. I may write a tool which will try to keep processor affinity for client process (I did it for priority too, I like run it at BellowNormal insted of Idle) and do some tests in next days.



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Questions and Answers : Preferences : Processor Affinity on multiprocessor computer

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