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MPI_Free_mem(3)                    Open MPI                    MPI_Free_mem(3)

NAME
       MPI_Free_mem   -  Frees  memory  that  has been allocated using MPI_Al-
       loc_mem.

SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Free_mem(void *base)

Fortran Syntax
       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_FREE_MEM(BASE, IERROR)
            <type> BASE(*)
            INTEGER IERROR

Fortran 2008 Syntax
       USE mpi_f08
       MPI_Free_mem(base, ierror)
            TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: base
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax
       #include <mpi.h>
       void MPI::Free_mem(void *base)

INPUT PARAMETER
       base      Initial address of memory segment allocated by  MPI_Alloc_mem
                 (choice).

OUTPUT PARAMETER
       IERROR    Fortran only: Error status (integer).

DESCRIPTION
       MPI_Free_mem frees memory that has been allocated by MPI_Alloc_mem.

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
       may  be  used  to cause error values to be returned. Note that MPI does
       not guarantee that an MPI program can continue past an error.

SEE ALSO
       MPI_Alloc_mem

4.1.2                            Nov 24, 2021                  MPI_Free_mem(3)

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