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MPI

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Installing openmpi: 

yum install openmpi
yum install openmpi-devel

This installs openmpi in /usr/lib64/ For the libraries and binaries to be accessible to the users just add the following lines to .basrh file: 

export LD_LIBRARY_PATH=/usr/lib64/openmpi/lib/:$LD_LIBRARY_PATH
export PATH=/usr/lib64/openmpi/bin/:$PATH
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