Multi-core CPU systems, need a help

  • Thread starter Thread starter Villi Bernaroli
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Villi Bernaroli

I have a single threaded application working under 3 different multi-core
systems, one with XP 32 bit, one with Vista and one with Windows 2003.
On XP the workload is all on a single core, while in Vista and 2003 the
workload affects both the two cores.
Am I correct in suspecting the 2 latter OS'es (Vista and 2003) are
internally splitting the single thread between more cores?
And if so, is there a way to tell Vista (or 2003) not to use this feature so
to let the single threaded application work on one core only?
 
You can do this manually by setting the affinity in Task Manager. I don't
know of a way to set it automatically.
 
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