Re: [OMPI devel] size of shared-memory backing file + maffinity

2009-01-13 Thread Eugene Loh
Lenny Verkhovsky wrote: Actually the size is suppose to be the same, Yes, I would think that that is how it is supposed to work. It just suppose to bind process to it's closer memory node, instead of leaving it to OS. mpool_sm_module.c:82: opal_maffinity_base_bind(&mseg, 1, mpool_sm->mem_n

Re: [OMPI devel] size of shared-memory backing file + maffinity

2009-01-13 Thread Lenny Verkhovsky
Actually the size is suppose to be the same, It just suppose to bind process to it's closer memory node, instead of leaving it to OS. see: mpool_sm_module.c:82:opal_maffinity_base_bind(&mseg, 1, mpool_sm->mem_node); Best regards Lenny. On Mon, Jan 12, 2009 at 10:02 PM, Eugene Loh wrote

[OMPI devel] size of shared-memory backing file + maffinity

2009-01-12 Thread Eugene Loh
I'm trying to understand how much shared memory is allocated when maffinity is on. The sm BTL sets up a file that is mmapped into each local process's address space so that the processes on a node can communicate via shared memory. Actually, when maffinity indicates that there are multiple "