app0 will have ranks 0-2, app2 will have rank 3-(2+x), app3 will have
rank....you get the picture.
On Jul 3, 2009, at 10:14 AM, Simone Pellegrini wrote:
Ralph Castain wrote:
Sure:
mpirun --np 3 mpi_app1 "app1_args" : -np x mpi_app2 "app2_args" : -
np y mpi_app3 "app3_args"
Nice, but what the implication with the process rank?
Can I assume that app1 will have rank 0, app2 rank 1 and app3 rank
3? or there are no assumption that can me made?
thanks again, regards Simone
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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