At 15:59 08/05/2012, you wrote:
Yep you are correct. I did the same and it worked. When I have more
than 3 MPI tasks there is lot of overhead on GPU.
But for CPU there is not overhead. All three machines have 4 quad
core processors with 3.8 GB RAM.
Just wondering why there is no degradation
Yep you are correct. I did the same and it worked. When I have more than 3
MPI tasks there is lot of overhead on GPU.
But for CPU there is not overhead. All three machines have 4 quad core
processors with 3.8 GB RAM.
Just wondering why there is no degradation of performance on CPU ?
On Tue, May
You should be running with one GPU per MPI process. If I understand correctly,
you have a 3 node cluster and each node has a GPU so you should run with np=3.
Maybe you can try that and see if your numbers come out better.
From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On B
