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MPI_IPROBE(3)							 MPI_IPROBE(3)

NAME
     MPI_Iprobe - Provides a nonblocking test for a message

SYNOPSIS
     C:

	  #include <mpi.h>

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

     C++:

	  #include <mpi.h>

	  bool Comm::Iprobe(
	  int		    source,
	  int		    tag) const

     Fortran:

	  INCLUDE "mpif.h" (or USE MPI)

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

	  CALL MPI_IPROBE(source, tag, comm, flag, 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_Iprobe routine provides a nonblocking test for a message.	This
     routine accepts the following parameters:

     source    Specifes a source rank or MPI_ANY_SOURCE (integer)

     tag       Specifies a tag value or MPI_ANY_TAG (integer)

     comm      Specifies the communicator (handle)

									Page 1

MPI_IPROBE(3)							 MPI_IPROBE(3)

     flag      Returns a value of true if the operation completed (logical)

     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.

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