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#!/bin/bash
# compile
mpicc -o /ubuntu/mpi_hello_world i./mpi_hello_world.c
# scp hello wrold to all clients. sudo -u mpi for auto scp connect. see /home/mpi/.ssh
while read -r line;
do
scp /ubuntu/mpi_hello_world ubuntu@$line:/ubuntu/mpi_hello_world
done < /ubuntu/hosts
# cd to work dir
cd /ubuntu
# run it!
mpirun -n 10 -f /ubuntu/hosts /ubuntu/mpi_hello_world 2>&1 | tee /tmp/output.log