+1, with an addition and modification: * add the async_modex on by default * make the change in master and let it "stew" for awhile before moving to 2.0. I believe only Cisco has been running MTT against that setup so far.
On Thu, Feb 4, 2016 at 6:04 AM, Gilles Gouaillardet < gilles.gouaillar...@gmail.com> wrote: > +1 > > should we also enable sparse groups by default ? > (or at least on master, and then v2.x later) > > Cheers, > > Gilles > > > On Thursday, February 4, 2016, Joshua Ladd <jladd.m...@gmail.com> wrote: > >> +1 >> >> >> On Wed, Feb 3, 2016 at 9:54 PM, Jeff Squyres (jsquyres) < >> jsquy...@cisco.com> wrote: >> >>> WHAT: Decrease default value of mpi_add_procs_cutoff from 1024 to 32 >>> >>> WHY: The "partial add procs" behavior is supposed to be a key feature of >>> v2.0.0 >>> >>> WHERE: ompi/mpi/runtime/ompi_mpi_params.c >>> >>> TIMEOUT: Next Tuesday teleconf (9 Feb 2016) >>> >>> MORE DETAIL: >>> >>> The mpi_add_procs_cutoff MCA param controls the crossover to when we >>> start doing "partial" add_procs() behavior (i.e., don't just >>> pml.add_procs(ALL_PROCS) during MPI_INIT). Currently, this value defaults >>> to 1024, meaning that we don't get the "partial add_procs" behavior until >>> you run 1025 processes. >>> >>> Does anyone have an issue with reducing this value to a lower value? I >>> picked 32 somewhat arbitrarily. See the PR for master: >>> >>> https://github.com/open-mpi/ompi/pull/1340 >>> >>> -- >>> Jeff Squyres >>> jsquy...@cisco.com >>> For corporate legal information go to: >>> http://www.cisco.com/web/about/doing_business/legal/cri/ >>> >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >>> http://www.open-mpi.org/community/lists/devel/2016/02/18543.php >>> >> >> > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2016/02/18551.php >
