=== Mpi4py ===
This is for running on multi-processor machines, for the analyses in relax which support it. Download the file from the [https://code.google.com/p/mpi4py/downloads/list mpi4py download site]. <br>
Note, this will require an up to date version of XCode installed on your system, as the code will be compiled.<br>
Download the file labelled as '''mpi4py-1.x.x.tar.gz'''.<br>Open this through the Finder to unpackage the archive into the '''~/Downloads/mpi4py-1.x.x/''' directory.<br># [[Mpi4py#Install | Mpi4py]]Open a terminal and type, replacing the x's with the current version, the following to get into the correct directory: <source lang="bash">$ cd ~/Downloads/mpi4py-1.x.x </source><br>Then to be sure the correct Python version is being used, type:
<source lang="bash">
$ sudo /Library/Frameworks/Python.framework/Versions/2.7/bin/python setup.py install