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MPI_Type_create_darray(3) MPI MPI_Type_create_darray(3)
MPI_Type_create_darray - Create a datatype representing a distributed
int MPI_Type_create_darray(int size,
MPICH2_CONST int array_of_gsizes,
MPICH2_CONST int array_of_distribs,
MPICH2_CONST int array_of_dargs,
MPICH2_CONST int array_of_psizes,
size - size of process group (positive integer)
rank - rank in process group (nonnegative integer)
ndims - number of array dimensions as well as process grid dimensions
- number of elements of type oldtype in each dimension of global
array (array of positive integers)
- distribution of array in each dimension (array of state)
- distribution argument in each dimension (array of positive
- size of process grid in each dimension (array of positive
order - array storage order flag (state)
- old datatype (handle)
- new datatype (handle)
THREAD AND INTERRUPT SAFETY
This routine is thread-safe. This means that this routine may be
safely used by multiple threads without the need for any user-provided
thread locks. However, the routine is not interrupt safe. Typically,
this is due to the use of memory allocation routines such as malloc or
other non-MPICH runtime routines that are themselves not interrupt-
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. ierr is
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 INTEGER in
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.
- No error; MPI routine completed successfully.
- Invalid datatype argument. May be an uncommitted MPI_Datatype
(see MPI_Type_commit ).
- Invalid argument. Some argument is invalid and is not
identified by a specific error class (e.g., MPI_ERR_RANK ).