Alain Miniussi 58713af3e2 Workaround MPI_Bcast bug w.r.t. MPI_BOTTOM. ...

Some implementations have issues with  using MPI_BOTTOM in MPI_Bcast.
If that the case we can use an alternate implementation.

There is a macro in config.hpp named BOOST_MPI_BCAST_BOTTOM_WORKS_FINE
that can be used to control that. broadcast_test.cpp print a message
that point to that macro if suspicious behavior is detected.

LAM and Bull X MPI seems to have that problem.

2015-04-24 01:02:52 +02:00

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