Re: [OMPI devel] Process placement

FWIW: speaking just to the —map-by node issue, Josh Ladd reported the problem on master as well yesterday. I’ll be looking into it on Wed. > On Apr 12, 2016, at 5:53 PM, George Bosilca wrote: > > > > On Wed, Apr 13, 2016 at 1:59 AM, Gilles Gouaillardet > wrote: > Ge

Re: [OMPI devel] Process placement

On Wed, Apr 13, 2016 at 1:59 AM, Gilles Gouaillardet wrote: > George, > > about the process binding part > > On 4/13/2016 7:32 AM, George Bosilca wrote: > >> Also my processes, despite the fact that I asked for 1 per node, are not >> bound to the first core. Shouldn’t we release the process bindi

Re: [OMPI devel] Process placement

George, about the process binding part On 4/13/2016 7:32 AM, George Bosilca wrote: Also my processes, despite the fact that I asked for 1 per node, are not bound to the first core. Shouldn’t we release the process binding when we know there is a single process per node (as in the above case)

[OMPI devel] Process placement

I noticed that my old scheme of process placement seems to be have a different outcome with the current master. I used to start a single process per node on my cluster using a hostfile together with “map-by node”, with a command line that looked like this “mpirun —hostfile arc —map-by node -np 2