Yup, that's expected. That's because of your MPI implementation. OpenMPI does a busy wait when waiting for mpi messages. I think there's an environment variable or something that you can set to disable that, I am no sure. Maybe someone on the mailing list knows, or try checking the OpenMPI documentation.<br>
<br>Utkarsh<br><br><div class="gmail_quote">On Mon, Jun 15, 2009 at 11:28 AM, Randy Heiland <span dir="ltr"><<a href="mailto:heiland@indiana.edu">heiland@indiana.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
When I use 'mpirun -np 2 pvserver' on my dual core MacBook (either connecting to it via paraview client or standalone), it keeps one of my CPUs pegged at nearly 100%. Is this to be expected? (Just running the serial './pvserver' of course just generates 'Listening...Waiting for client...' with no CPU load).<br>
<br>
% ./pvserver --version<br>
ParaView3.7<br>
<br>
% ompi_info<br>
Open MPI: 1.3.1<br>
<br>
thanks, Randy<br>
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