Re: [OMPI users] Runtime replacement of mpi libraries?

2014-09-11 Thread Michael Raymond
Another option is SGI PerfBoost. It will let you run apps compiled against other ABIs with SGI MPT with practically no performance loss. $ module load openmpi $ make $ module unload openmpi $ module load mpt perfboost $ mpiexec_mpt -np 2 perfboost -ompi a.out On 09/11/2014 01:28 PM, JR Cary w

Re: [OMPI users] Runtime replacement of mpi libraries?

2014-09-11 Thread Michael Raymond
, Michael Raymond wrote: Another option is SGI PerfBoost. It will let you run apps compiled against other ABIs with SGI MPT with practically no performance loss. $ module load openmpi $ make $ module unload openmpi $ module load mpt perfboost $ mpiexec_mpt -np 2 perfboost -ompi a.out On 09/11/2014

Re: [OMPI users] Directed to Undirected Graph

2012-06-05 Thread Michael Raymond
You need to use 2 calls. One option is an Allgather followed by an Allgatherv. Allgather() with one integer, which is the number of nodes the rank is linked to Allgatherv() with a variable size array of integers where each entry is a connected to node On 06/05/2012 08:39 AM, Mudassar Maje