Re: [Gomp-discuss] Number of CPU's

[Steven Bosscher]

Op ma 17-02-2003, om 10:58 schreef Steven Bosscher:
> 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.
> 

UNICOS and AIX support this, too.