mpi.get.sourcetag: Utility for finding the source and tag of a received message

In Rmpi: Interface (Wrapper) to MPI (Message-Passing Interface)

Utility for finding the source and tag of a received message

Description

mpi.get.sourcetag finds the source and tag of a received message.

Usage

  mpi.get.sourcetag(status = 0)

Arguments

status

a status number

Details

When mpi.any.source and/or mpi.any.tag are used by mpi.recv or mpi.probe, one can use mpi.get.sourcetag to find who sends the message or with what a tag number. mpi.get.sourcetag must be called immediately after calling mpi.recv or mpi.probe otherwise the obtained information may not be right.

Value

2 dim int vector. The first integer is the source and the second is the tag.

Author(s)

Hao Yu

References

https://www.open-mpi.org/

See Also

mpi.send, mpi.recv, mpi.probe, mpi.get.count

Rmpi documentation built on April 4, 2025, 1:35 a.m.