[PATCH] Fix reductions for MPI operation

[Richard Guenther]

This patch fixes (works around) a previously discovered problem 
(remember the WaitingIterate).  I'm sure there is a real problem
to fix (at least for MPI - I'm not sure about Cheetah), and this
is the least intrusive way of fixing it until the right idea for
a cross-context csem like mechanism pops up.

Without this patch random lockups during reductions may occour.

Ok?

Richard.


2004Aug21  Richard Guenther <richard.guenther at uni-tuebingen.de>

	* src/Engine/RemoteEngine.h: For MPI avoid doing blocking
	operation during reductions while iterates are still pending.
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