[petsc-users] Pthread support

Jed Brown jedbrown at mcs.anl.gov
Mon Jul 23 22:04:22 CDT 2012

On Mon, Jul 23, 2012 at 10:00 PM, Alexander Goncharov <alexvg77 at gmail.com>wrote:

> thank you for a quick reply. If I run ex2 with -mat_type seqaijpthread
> -nthreads 4, everything runs fine. I see 400% utilization.
> The problem persists if I just start two instances of the ex2 from the
> console without seqaijpthread/seqpthread options. Just two single
> processor jobs. They show up as two 50% jobs in the "top" output and run
> slower. I hope I made my problem more clear.

Does -nthreads 1 fix it?
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