Re: Detecting number of Physical CPUs in Intel Hyperthreaded CPUsystems

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You can do something like this from the shell:

processors=`egrep -c ^cpu[0-9]+ /proc/stat || :`

René

Ken Sheppard wrote:
> Does anyone know how I can determine the number of physical processors
> on a machine with Intel Hyperthreaded CPUs? I have code from Intel which
> will report the number of physical CPUs on a windows system. It uses the
> Win32 process affinity stuff to issue commands on specific CPUs so it
> isn't portable to Linux. I was hoping I could simply read /proc/cpuinfo.
> The /proc/cpuinfo I looked at on a 2.4.? machine didn't appear to have
> enough information.
> 
> Thanks,
> 
> Ken
> 
> 
> 
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-- 
B.Sc. in Computer Systems Engineering
The Maersk Mc-Kinney Moller Institute for Production Technology
University of Southern Denmark
http://www.mip.sdu.dk/~fonseca



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