Hi,

Two queries.

1) Is Open MPI thread-safe (assuming the system-supplied libraries are thread-safe)? In particular will it be possible to call MPI routines from OpenMP regions and will it be possible to use OpenMP directives within MPI tasks?

2) Does Open MPI use the same mechanism as LAM-MPI's "lamboot" (rsh/ssh) to start daemons on other nodes or is there a different mechanism altogether?

Regards
        Neil Storer
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