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Subject: Re: [OMPI users] Changing the MPIRUN/MPIEXEC semantics
From: Ralph Castain (rhc_at_[hidden])
Date: 2009-07-03 11:42:07


Sure:

mpirun --np 3 mpi_app1 "app1_args" : -np x mpi_app2 "app2_args" : -np
y mpi_app3 "app3_args"

On Jul 3, 2009, at 9:36 AM, Simone Pellegrini wrote:

> Dear all,
> current implementation of mpirun starts the executable in different
> nodes. For some reason I need to start different MPI applications
> across nodes and I want to use MPI to communicate among these
> applications. For short I want to breakdown the SPMD model,
> something like:
>
> mpirun --np 3 mpi_app1 "app1_args", mpi_app2, "app2_args", mpi_app3,
> "app3_args"
>
> Is it possible to have this kind of behavior with the current
> implementation of mpirun?
> if not... it's implement it via changing the mpirun and/or mpiexec
> routines or does it implies radical changes to the entire Open MPI
> library?
>
> regards, Simone
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