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choosing the processor for a program!

Posted on 2000-03-02
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Last Modified: 2010-04-02
I have a NT server with 4 processors. I need to know how to start up programs from my TrafficCop on each separate processor so the four programs run parallel to each other. I have noticed that we are not using the full potential, let alone all of the processors. Is it up to my program to decide which processors to run on or is it up to the OS? How is this performed?
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Question by:rrrrr80
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Expert Comment

by:Iexpert
ID: 2576875
Obviously the OS must deal with it.
If a program supports running seperate instances of itself then
doing this allows the OS to spread them out over multiple processors.
If only one intance of a program can be started, then the program
must be explicitly written to use multiple threads, and again the
OS can share these out amoung the processors.
In summary it depends on how the programs are written.
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jhance earned 40 total points
ID: 2576906
See the:

SetProcessAffinityMask()

in the SDK if you want to specify.  Otherwise NT will decide for you based on load.
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Author Comment

by:rrrrr80
ID: 2589132
That is exactly what I was looking for!
Sorry it took me this long to get back to you! thanks again for the info!
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