Hi Kenneth, On 28 March 2018 at 03:55, Kenneth Hoste <[email protected]> wrote:
> > I *think* that the main difference between OpenMPI 2.x and 3.x is support > for MPI-3, so the major version bump doesn't need to be a signal of > potential trouble... > OpenMPI has supported MPI 3.0 fully since v 1.7.5/1.8 and MPI 3.1 fully since v 2.0.0. According to the news: "v3.0.0 is the start of a new release series for Open MPI. Open MPI 3.0.0 enables MPI_THREAD_MULTIPLE by default, so a build option to Open MPI is no longer required to enable thread support." -- however the easyconfig already enabled threads for a long time, so from this point of view nothing changed in this department. v3.1.0 does a bunch of smaller changes and performance improvements for Reduce/Allreduce but nothing major it seems. Bart -- Dr. Bart E. Oldeman | [email protected] | [email protected] Scientific Computing Analyst / Analyste en calcul scientifique McGill HPC Centre / Centre de Calcul Haute Performance de McGill | http://www.hpc.mcgill.ca Calcul Québec | http://www.calculquebec.ca Compute/Calcul Canada | http://www.computecanada.ca Tel/Tél: 514-396-8926 | Fax/Télécopieur: 514-396-8934
