MPI_Iprobe

Nonblocking test for a message.

📝Syntax

[flag, stat, info] = MPI_Iprobe(rank, tag)
[flag, stat, info] = MPI_Iprobe(rank, tag, comm)

📥Input Arguments

Parameter	Description
rank	an integer value: source rank.
tag	an integer value: message tag.
comm	a MPI_Comm object.

📤Output Arguments

Parameter	Description
flag	an integer value: 1 if the message is ready to be received, 0 if it is not.
stat	a struct: source rank, message tag, error, count, cancelled for the accepted message.
info	an integer value: 0 (MPI_SUCCESS) other value is an error.

📄Description

Nonblocking test for a message.

💡Examples

mpiexec([modulepath('mpi'), '/examples/help_examples/MPI_Iprobe.m'], 4)

if ~MPI_Initialized()
  MPI_Init();
end
comm = MPI_Comm_object();
world_rank = MPI_Comm_rank();
world_size = MPI_Comm_size();

[FLAG, STAT, INFO] = MPI_Iprobe(world_rank,1, comm)

if MPI_Initialized()
  MPI_Finalize();
end

🔗See Also

MPI_Probe

🕔Version History

Version	Description
1.0.0	initial version

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