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)

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


       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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