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