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FAQ:
AIX (unsupported)

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Table of contents:

  1. Is AIX a supported operating system for Open MPI?
  2. Does Open MPI work on AIX?


1. Is AIX a supported operating system for Open MPI?

No. AIX used to be supported, but none of the current Open MPI developers has any platforms that require AIX support for Open MPI.

Since Open MPI is an open source project, its features and requirements are driven by the union of its developers. Hence, AIX support has fallen away because none of us currently use AIX. All this means that is we do not develop or test on AIX; there is no fundamental technology reason why Open MPI couldn't be supported on AIX.

AIX support could certainly be re-instated if someone who wanted AIX support joins the core group of developers and contributes the development and testing to support AIX.


2. Does Open MPI work on AIX?

There have been reports from random users that a small number of changes are required to the Open MPI code base to make it work under AIX. For example, see the following post on the Open MPI user's list, reported by Ricardo Fonseca: