Depending on what version you use, the option has been renamed
--enable-mpi-thread-multiple.
Anyhow, there is widespread concern whether the support is robust. The
support is known to be limited and the performance poor.
On 5/4/2011 9:14 AM, Mark Dixon wrote:
I've been asked about mixed-mode MPI/OpenMP programming with OpenMPI,
so have been digging through the past list messages on MPI_THREAD_*,
etc. Interesting stuff :)
Before I go ahead and add "--enable-mpi-threads" to our standard
configure flags, is there any reason it's disabled by default, please?
I'm a bit puzzled, as this default seems in conflict with whole "Law
of Least Astonishment" thing. Have I missed some disaster that's going
to happen?
