MPI_Type_get_contents

get type contents

Synopsis

int MPI_Type_get_contents(MPI_Datatype datatype,
                        int max_integers,
                        int max_addresses,
                        int max_datatypes,
                        int array_of_integers[],
                        MPI_Aint array_of_addresses[],
                        MPI_Datatype array_of_datatypes[])

Input Parameters

datatype: datatype to access (handle)
max_integers: number of elements in array_of_integers (non-negative integer)
max_addresses: number of elements in array_of_addresses (non-negative integer)
max_datatypes: number of elements in array_of_datatypes (non-negative integer)

Output Parameters

array_of_integers: contains integer arguments used in constructing the datatype (array of integers)
array_of_addresses: contains address arguments used in constructing the datatype (array of integers)
array_of_datatypes: contains datatype arguments used in constructing the datatype (array of handles)

Notes

Notes for Fortran

All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) have an additional argument ierr at the end of the argument list. ierris an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement.

All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGERin Fortran.

Errors

All MPI routines (except MPI_Wtime and MPI_Wtick) return an error value; C routines as the value of the function and Fortran routines in the last argument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job. The error handler may be changed with MPI_Comm_set_errhandler (for communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. The predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarentee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible.

MPI_SUCCESS: No error; MPI routine completed successfully.