Sorry I missed this message before... it got lost in the deluge that
is my inbox.
Are you using the mpi_leave_pinned MCA parameter? That will make a
big difference on the typical ping-pong benchmarks:
mpirun --mca mpi_leave_pinned 1
On Oct 11, 2007, at 11:44 AM, Matteo Cicuttin
Il giorno 11/ott/07, alle ore 07:16, Neeraj Chourasia ha scritto:
Dear All,
Could anyone tell me the important tuning parameters in openmpi
with IB interconnect? I tried setting eager_rdma, min_rdma_size,
mpi_leave_pinned parameters from the mpirun command line on 38
nodes cluster (3
Hi Neeraj,
>Could anyone tell me the important tuning parameters in openmpi with
>IB interconnect? I tried setting eager_rdma, min_rdma_size,
>mpi_leave_pinned parameters from the mpirun command line on 38 nodes
>cluster (38*2 processors) but in vain. I found simple mpirun with
Dear All, Could anyone tell me the important tuning
parameters in openmpi with IB interconnect? I tried setting eager_rdma,
min_rdma_size, mpi_leave_pinned parameters from the mpirun command line on 38
nodes cluster (38*2 processors) but in vain. I found simple mpirun with no mca
parameters
