I assumed you meant processes on a host, but I noticed that you
wrote "cores". I'm not sure what the answer is if you really meant cores.
I run different number of processes per "node" using mpirun
-hostfile=hosts .... ,
where hosts file contains:
host0 slots=5
host1 slots=5
host2 slots=5
host3 slots=5
host4 slots=4
host5 slots=4
host6 slots=4
This would create 5 processes on host0-3 and 4 processes on host4-6.
Siamak Riahi wrote:
Thanks for the answer. I have been using LAM MPI. I'm using FDS (Fire
Dynamic Simulator) and in my model I have 7 threads and want to tie
them to two cores which means I don't want the 7 threads to use all
four cores on the cluster that we have. Have you done some thing
similar to this?
Thanks,
Siamak
On 10/23/07, *Prasun Ratn* <prasu...@ncsu.edu
<mailto:prasu...@ncsu.edu>> wrote:
I do this using the hostfile. There might be a more sophisticated
way too.
Siamak Riahi wrote:
> I have a question about using the open mpi.
>
> I want to tie "N" number of processes to one core and "M" number of
> processes to another core. I want to know if open mpi is capable of
> doing that.
>
> Thanks,
>
> Siamak
