Re: number of processors

[Philip Willoughby]

Today, Eric Siegerman wrote:

>Rather:
>    if (nprocs == -1)          /* Value unavailable */
>      exit(EXIT_ERROR);
>    else if (nprocs == 0)
>      nprocs = 1;
>
>>   printf ("%ld\n",nprocs);
>>   exit (EXIT_SUCCESS);
>> }
>
>Then if it exits with an error, proceed to your other tests.

Yes...

A more useful variant of my original code (I tidied it up a bit after
posting) can be got from http://csgsoft.doc.ic.ac.uk/numcpus

Also IMO the best way to test on linux is to add one to the number of the
last processor (they are numbered sequentially from 0).

Regards,

Philip Willoughby

Systems Programmer, Department of Computing, Imperial College, London, UK
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