[slurm-dev] Re: multiple MPI versions with slurm

[r...@open-mpi.org]

If you are using a recent (as in v16.05 or greater) version of SLURM, then you 
can also build it with the PMIx support and use that for OpenMPI - it will 
launch faster

> On Jul 21, 2017, at 7:12 AM, Paul Edmon  wrote:
> 
> 
> I would build MPI using the pmi libraries and slurm with pmi support.  Then 
> you can launch any version of MPI using the same srun command and leveraging 
> pmi.
> 
> -Paul Edmon-
> 
> 
> On 07/21/2017 10:03 AM, Manuel Rodríguez Pascual wrote:
>> Hi all,
>> 
>> I'm trying to provide support to users demanding different versions of
>> MPI, namely mvapich2 and OpenMPI. In particular, I'd like to support
>> "srun -n X ./my_parallel_app", maybe with "--with-mpi=X" flag.
>> 
>> 
>> Has anybody got any suggestion on how to do that? I'm am kind of new
>> to cluster administration, so probably there is some obvious solution
>> that I am not aware of.
>> 
>> Cheers,
>> 
>> 
>> Manuel

[slurm-dev] Re: multiple MPI versions with slurm

[Paul Edmon]

I would build MPI using the pmi libraries and slurm with pmi support.  
Then you can launch any version of MPI using the same srun command and 
leveraging pmi.


-Paul Edmon-


On 07/21/2017 10:03 AM, Manuel Rodríguez Pascual wrote:

Hi all,

I'm trying to provide support to users demanding different versions of
MPI, namely mvapich2 and OpenMPI. In particular, I'd like to support
"srun -n X ./my_parallel_app", maybe with "--with-mpi=X" flag.


Has anybody got any suggestion on how to do that? I'm am kind of new
to cluster administration, so probably there is some obvious solution
that I am not aware of.

Cheers,


Manuel