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Subject: [OMPI users] Does MPI_Bsend always use the buffer?
From: Bradley, Peter C. (MIS/CFD) (peter.c.bradley_at_[hidden])
Date: 2007-12-11 10:27:32

In OpenMPI, does MPI_Bsend always copy the message to the user-specified
buffer, or will it avoid the copy in situations where it knows the send can

I recognize bsend is generally to be avoided, but I have a need to emulate
an in-house message-passing library that guarantees that writes won't block.