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Sorry if this has been fixed for 1.3.4, but in the manpge for mpirun in
1.3.3 I noticed the following in the "MCA" section of the manpage:
Note: The -mca switch is simply a shortcut for setting
environment variables. The same
effect may be accomplished by setting corresponding
environment variables before running
mpirun. The form of the environment variables that Open MPI sets
However, as <key> is defined the env var one must set is actually
Paul H. Hargrove PHHargrove_at_[hidden]
Future Technologies Group Tel: +1-510-495-2352
HPC Research Department Fax: +1-510-486-6900
Lawrence Berkeley National Laboratory