On Wed, 21 Jul 2010 14:10:53 -0400, David Ronis <David.Ronis_at_[hidden]> wrote:
> Is there another MPI routine that polls for data and then gives up its
You're probably looking for the runtime option -mca yield_when_idle 1.
This will slightly increase latency, but allows other threads to run
without competing with the spinning MPI.