MPI_Probe(3)

NAME
     MPI_Probe - Provides a blocking test for a message

SYNOPSIS
     C:

          #include <mpi.h>

          int MPI_Probe( source, tag, comm, status )
          int         source;
          int         tag;
          MPI_Comm    comm;
          MPI_Status  *status;


     C++:

          #include <mpi.h>

          void Comm::Probe(
          int               source,
          int               tag) const


     Fortran:

          INCLUDE "mpif.h" (or USE MPI)

          INTEGER source, tag, comm, status(MPI_STATUS_SIZE), ierror

          CALL MPI_PROBE(source, tag, comm, status(MPI_STATUS_SIZE), ierror)


STANDARDS
     This release implements the MPI 1.2 standard, as documented by the MPI
     Forum in the spring 1997 release of MPI:  A Message Passing Interface
     Standard.

DESCRIPTION
     The MPI_Probe routine provides a blocking test for a message.  This
     routine accepts the following parameters:

     source    Specifies a source rank or MPI_ANY_SOURCE (integer)

     tag       Specifies a tag value or MPI_ANY_TAG (integer)

     comm      Specifies the communicator (handle)

     status    Returns the status object (status)
     ierror    Specifies the return code value for successful completion,
               which is in MPI_SUCCESS.  MPI_SUCCESS is defined in the mpif.h
               file.