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Subject: Re: [OMPI users] configure: mpi-threads disabled by default
From: Eugene Loh (eugene.loh_at_[hidden])
Date: 2011-05-04 12:38:59

Depending on what version you use, the option has been renamed

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?