Re: [OMPI users] Question about component priority (psm/sm)

2012-06-01 Thread Tom Harvill
We would rather that OpenMPI use shared-mem (sm) module when running intra-node processes. Doesn't PSM use shared memory to communicate between peers on the same node? Possibly, yes (I'm not sure). Even if it does it appears to consume a 'hardware context' for each peer - this is what we

Re: [OMPI users] Question about component priority (psm/sm)

2012-06-01 Thread Jeff Squyres
On Jun 1, 2012, at 4:28 PM, Tom Harvill wrote: > We would rather that OpenMPI use shared-mem (sm) module when running > intra-node processes. Doesn't PSM use shared memory to communicate between peers on the same node? (that is hidden from us in Open MPI; I am *assuming* that internal to PSM,

Re: [OMPI users] Question about component priority (psm/sm)

2012-06-01 Thread George Bosilca
MTL and BTL are mutually exclusive. If you use the psm MTL there is no way you can take advantage of the sm BTl. george. On Jun 2, 2012, at 05:28 , Tom Harvill wrote: > > Hello, > > This is my first post, I've searched the FAQ for (what I think) are relative > terms but am not finding an a