The cleaner way to define such an environment is by using the max-
slots and/or slots options in the hostfile. Here is a FAQ entry about
how Open MPI deal with these options (http://www.open-mpi.org/faq/?
On Oct 26, 2007, at 10:52 AM, 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?
> Jeff Pummill
> users mailing list
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