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From: Sefa Arslan (sefa_at_[hidden])
Date: 2007-10-31 14:45:50


I think if you boot the mpi on the host machine, and than run your
program with 8 thread (mpirun -np 8 <program_name>) , the operating
system will automatically distribute it to the cores.

Jeff Pummill wrote:
> I am doing some testing on a variety of 8-core nodes in which I just
> want to execute a couple of executables and have them distributed to
> the available cores without overlapping. Typically, this would be done
> with a parameter like /-machinefile machines/, but I have no idea what
> names to put into the /machines/ file as this is a single node with
> two quad core cpu's. As I am launching the jobs sans scheduler, I need
> to specify what cores to run on I would think to keep from
> overscheduling some cores while others receive nothing to do at all.
>
> Simple suggestions? Maybe Open MPI takes care of this detail for me?
>
> Thanks!
>
> Jeff Pummill
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