MPI_Sizeof(3) Open MPI MPI_Sizeof(3)
NAME
MPI_Sizeof - Returns the size, in bytes, of the given type
SYNTAX
Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_SIZEOF(X, SIZE, IERROR)
<type> X
INTEGER SIZE, IERROR
Fortran 2008 Syntax
USE mpi_f08
MPI_Sizeof(x, size, ierror)
TYPE(*), DIMENSION(..) :: x
INTEGER, INTENT(OUT) :: size
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
X A Fortran variable of numeric intrinsic type (choice).
OUTPUT PARAMETERS
SIZE Size of machine representation of that type (integer).
IERROR Error status (integer).
DESCRIPTION
MPI_SIZEOF returns the size (in bytes) of the machine representation of
the given variable. It is a generic Fortran type and has a Fortran
binding only. This routine is similar to the sizeof builtin in C/C++.
However, if given an array argument, it returns the size of the base
element, not the size of the whole array.
NOTES
This function is not available in C/C++ because it is not necessary.
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 the MPI man page for a full list of MPI error codes.
4.1.2 Nov 24, 2021 MPI_Sizeof(3)
Generated by dwww version 1.14 on Mon Jan 27 11:28:55 CET 2025.