Eugene Loh wrote:
Yves Caniou wrote:
Le Wednesday 28 July 2010 15:05:28, vous avez écrit :
I am confused. I thought all you wanted to do is report out the binding of
the process - yes? Are you trying to set the affinity bindings yourself?
If the latter, then your
Yves,
In Open MPI you can have a very fine control over how the deployment is bound
to the cores. For more information, please refer to the faq concerning the
rankfile description (in a rankfile you can specify very precisely what rank
goes on what physical PU). For a more single shot option,
Yves Caniou wrote:
Le Wednesday 28 July 2010 15:05:28, vous avez écrit :
I am confused. I thought all you wanted to do is report out the binding of
the process - yes? Are you trying to set the affinity bindings yourself?
If the latter, then your script doesn't do anything that mpi
Le Wednesday 28 July 2010 15:05:28, vous avez écrit :
> I am confused. I thought all you wanted to do is report out the binding of
> the process - yes? Are you trying to set the affinity bindings yourself?
>
> If the latter, then your script doesn't do anything that mpirun wouldn't
> do, and doesn'
Le Wednesday 28 July 2010 11:34:13 Ralph Castain, vous avez écrit :
> On Jul 27, 2010, at 11:18 PM, Yves Caniou wrote:
> > Le Wednesday 28 July 2010 06:03:21 Nysal Jan, vous avez écrit :
> >> OMPI_COMM_WORLD_RANK can be used to get the MPI rank. For other
> >> environment variables -
> >> http://ww
On Jul 27, 2010, at 11:18 PM, Yves Caniou wrote:
> Le Wednesday 28 July 2010 06:03:21 Nysal Jan, vous avez écrit :
>> OMPI_COMM_WORLD_RANK can be used to get the MPI rank. For other environment
>> variables -
>> http://www.open-mpi.org/faq/?category=running#mpi-environmental-variables
>
> Are pr
Le Wednesday 28 July 2010 06:03:21 Nysal Jan, vous avez écrit :
> OMPI_COMM_WORLD_RANK can be used to get the MPI rank. For other environment
> variables -
> http://www.open-mpi.org/faq/?category=running#mpi-environmental-variables
Are processes affected to nodes sequentially, so that I can get th
OMPI_COMM_WORLD_RANK can be used to get the MPI rank. For other environment
variables -
http://www.open-mpi.org/faq/?category=running#mpi-environmental-variables
For processor affinity see this FAQ entry -
http://www.open-mpi.org/faq/?category=all#using-paffinity
--Nysal
On Wed, Jul 28, 2010 at 9
Hi,
I have some performance issue on a parallel machine composed of nodes of 16
procs each. The application is launched on multiple of 16 procs for given
numbers of nodes.
I was told by people using MX MPI with this machine to attach a script to
mpiexec, which 'numactl' things, in order to make
