On Sep 4, 2008, at 4:35 PM, Eugene Loh wrote:
There are many alternatives to polling hard. One is to yield the
CPU if someone else is asking for it. Again, Open MPI has some
support for this today with the "mpi_yield_when_idle" variable.
Right? Might not be all of what someone wants, bu
Jeff Squyres wrote:
OMPI currently polls for message passing progress. While you're in
MPI_BCAST, it's quite possible/ likely that OMPI will poll hard until
the BCAST is done. It is possible that a future version of OMPI will
use a hybrid polling+non- polling approach for progress, such th
