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MPI_Request_get_status(3) man page (version 1.3.4)

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NAME

       MPI_Request_get_status  -  Access information associated with a request
       without freeing the request.

SYNTAX


C Syntax

       #include <mpi.h>
       int MPI_Request_get_status(MPI_Request request, int *flag, MPI_Status *status)

Fortran Syntax

       INCLUDE 'mpif.h'
       MPI_REQUEST_FREE(REQUEST, FLAG, STATUS, IERROR)
            INTEGER   REQUEST, STATUS(MPI_STATUS_SIZE), IERROR
            LOGICAL   FLAG

C++ Syntax

       #include <mpi.h>
       bool MPI::Request::Get_status(MPI::Status& status) const

       bool MPI::Request::Get_status() const

INPUT PARAMETER

       request         Communication request (handle).

OUTPUT PARAMETERS

       flag      Boolean flag, same as from MPI_Test (logical).

       status    MPI_Status object if flag is true (status).

DESCRIPTION

       MPI_Request_get_status sets flag=true if the operation is  complete  or
       sets flag=false if it is not complete. If the operation is complete, it
       returns in status the request status. It does not deallocate or inacti-
       vate  the  request;  a subsequent call to test, wait, or free should be
       executed with that request.

       If your application does not need to examine the status field, you  can
       save  resources by using the predefined constant MPI_STATUS_IGNORE as a
       special value for the status argument.

ERRORS

       Almost all MPI routines return an error value; C routines as the  value
       of  the  function  and Fortran routines in the last argument. C++ func-
       tions do not return errors. If the default  error  handler  is  set  to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI  error  handler  is
       called.  By  default, this error handler aborts the MPI job, except for
       I/O  function  errors.  The  error  handler   may   be   changed   with
       MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN

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