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Asked: 2026-06-13T04:38:41+00:00

I am trying to teach myself the MPI message passing interface with mpi4py. I

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I am trying to teach myself the MPI message passing interface with mpi4py. I noticed that MPI had a function called “sendrecv”. However, it is not listed in mpi4py documentation:
http://documen.tician.de/boostmpi/reference.html

Could I simply emulate the sendrecv function with say

  communicator.send(0xdeadbeef, dest=1, tag=0)
  data = communicator.recv(source=1, tag=0)

What does “sendrecv” do other than emulate a recv followed by a send? Where can I find mpi4py documentation that talks about it?

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  1. Editorial Team

    MPI_Sendrecv is a convenience function. It sends one message and receives one message, and guarantees that there will be no deadlocks due to each process waiting for another one to send.

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