[mpich-discuss] linux shell calls and mpi

[Nicolas Rosner]

Charles, if your C program just needs to trigger an external script on
exit and you don't plan to pass parameters to it or expect results
back from it (other than the effect of running it everywhere), then
isn't this basically what you want?

$ mpiexec -f nodes ./hellompi ; mpiexec -f nodes /usr/bin/python ./hello.py
Hello MPI world! I'm rank 0 of 3.
Hello MPI world! I'm rank 1 of 3.
Hello MPI world! I'm rank 2 of 3.
Hello world, I'm a python script.
Hello world, I'm a python script.
Hello world, I'm a python script.

$ ls
hello.py
hellompi
hellompi.c
nodes

N.