MPI Send/Receive (cont)

• MPI_Recv (buf, count, datatype, source, tag, comm, status)

  • void *buf (address of send buffer)
  • int count (number of elements in send buffer)
  • int source (source of sending PE)
  • int tag (message tag)
  • MPI_Datatype (datatype of each send element)
  • MPI_Comm (handle of a communicator - a communicator is a group of PEs - two predetermined groups are MPI_COMM_WORLD and MPI_COMM_SELF).

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