Mpi send and recv are blocking, while you can exit bcast even if other
processes haven't receive the bcast yet. A general rule of thumb is
mpi calls are optimized and almost always perform better than if you
were to manage the communication youself.
On 9/1/10, ananda.mu...@wipro.com
Hi
If I replace MPI_Bcast() with a paired MPI_Send() and MPI_Recv() calls,
what kind of impact does it have on the performance of the program? Are
there any benchmarks of MPI_Bcast() vs paired MPI_Send() and
MPI_Recv()??
Thanks
Ananda
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