MPI between two nodes that are not directly connected

MPI between two nodes that are not directly connected

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yossiamat
Fr, 29/07/2011 - 07:26

Hi Assuming that I have three nodes in the network A, B, C such that A is connected to B and B is connected to C, but A and C are not directly connected but only through B. Will it be possible to send an MPI message from A to C by the Intel MPI framework such that B will route it automatically?

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Dmitry Kuzmin (Intel)
Mo, 01/08/2011 - 03:24

No, Intel MPI cannot route it automatically. Intel MPI library relies on OS or a driver or whatever, so direct connection between A and C has to be transparent.

Regards!
Dmitry

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