Subject: Re: [Boost-users] ?==?utf-8?q? boost-mpi - Serious performance degradation with OpenMPI 1.10.1
From: Ilja Honkonen (ilja.honkonen_at_[hidden])
Date: 2016-03-16 05:02:04
> I didn't check that specific version of open-mpi. I cannot guarantee to
> find much time to look into this problem but if you could provide a
> simple test case...
I used http://listarchives.boost.org/boost-users/att-83807/test.cpp which
showed that boost::mpi was at least 10x slower than MPI for sending
largeish vectors between two processes on a laptop with openmpi 1.6.5
but the problem didn't seem specific to openmpi.
Ilja