mpi_sizeof(3)
NAME
MPI_Sizeof - Returns the size, in bytes, of the given type
SYNTAX
Fortran Syntax
INCLUDE 'mpif.h'
MPI_SIZEOF(X, SIZE, IERROR)
<type> X
INTEGER SIZE, IERROR
INPUT PARAMETER
X A Fortran variable of numeric intrisic 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++ functions 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.