Check out the MPI_T support - that should give you a lot of control, though it is still somewhat untested and new
> On Sep 15, 2015, at 10:40 AM, marcin.krotkiewski > <marcin.krotkiew...@gmail.com> wrote: > > I was wondering if it is possible, or considered to make it possible to > change the various MCA parameters by individual ranks during runtime in > addition to the command line? > > I tried to google a bit, but did not get any indication that such topic has > even been discussed. It would be a very useful thing, especially in > multi-threaded applications when using MPI_THREAD_MULTIPLE, but I could come > up with plenty uses in usual single-threaded ranks setups. > > Marcin > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/09/27576.php
