I want to build a version of OpenMPI v4 to run on a cluster where some ranks are IBM POWER (little endian) and other ranks are x86_64. The OpenMPI wiki says that I need to define OMPI_ENABLE_HETEROGENEOUS_SUPPORT so that structure padding will be inserted as appropriate to make this work; but a quick 'grep' in the source code finds that this macro isn't used anywhere.
Can I build OpenMPI for such a cluster nowadays ? T J (Chris) Ward, IBM Research. Scalable Data-Centric Computing - IBM Spectrum MPI IBM United Kingdom Ltd., Hursley Park, Winchester, Hants, SO21 2JN 011-44-1962-818679 LinkedIn https://www.linkedin.com/in/tjcward/ ResearchGate https://www.researchgate.net/profile/Thomas_Ward16 IBM Research -- Data Centric Systems IBM Supercomputer Marketing IBM Branded Products IBM Branded Swag UNIX in the Cloud - Find A Place Where There's Room To Grow, with the original Open Standard. Free Trial Here Today Protein Folding by Supercomputer - BlueMatter Molecular Dynamics package. Data Tables - In-memory key-value store package. Linux on Windows - Virtualisation package. On the Lighthouse ! Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
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