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Important information on using MPI applications on the CHPC cluster with the PBSPro scheduler.
Do not use
–machinefile option with
Insert examples here of loading an MPI module and launching the the MPI code.
Firstly, don't. Check if the MPI library you need is not already installed. If not, open a ticket with Helpdesk and ask us to build it for you.
Secondly, if you really need to build your own MPI library then you must make sure it uses the PBSPro tools to launch all MPI ranks on the nodes. See the 'recipes' below for the most popular MPI libraries: