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Re: [Gomp-discuss] Number of CPU's
From: |
Steven Bosscher |
Subject: |
Re: [Gomp-discuss] Number of CPU's |
Date: |
17 Feb 2003 10:58:52 +0100 |
Op ma 17-02-2003, om 10:43 schreef Lars Segerlund:
>
> I am fairly sure that POSIX doesn't provide a way to determine the
> number of physical CPU's in the system, this has to be done in a system
> dependent manner.
Well, like I said: You can get the number of configured and online CPUs
with:
long N_CPUs_configured = sysconf (_SC_NPROCESSORS_CONF);
long N_CPUs_online = sysconf (_SC_NPROCESSORS_ONLN);
This works on Solaris, HPUX and Linux, I'm not sure if it's POSIX but if
it isn't then it's sort-of the de facto standard.
Greetz
Steven
RE: [Gomp-discuss] Number of CPU's, Scott Robert Ladd, 2003/02/17