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MPI_Type_create_indexed_block

NAME

MPI_Type_create_indexed_block - Creates an indexed data type with the same block length for all blocks.

SYNTAX

C Syntax

 #include <mpi.h>
 int MPI_Type_create_indexed_block(int count, int blocklength, int array_of_displacements[], MPI_Datatype oldtype, MPI_Datatype *newtype)
 
 

 

Fortran Syntax

 INCLUDE 'mpif.h'
 MPI_TYPE_CREATE_INDEXED_BLOCK(COUNT, BLOCKLENGTH, 
                 ARRAY_OF_DISPLACEMENTS, OLDTYPE, NEWTYPE, IERROR)
         INTEGER COUNT, BLOCKLENGTH, ARRAY_OF_DISPLACEMENTS(*),
                 OLDTYPE, NEWTYPE, IERROR 
 
 

 

C++ Syntax

 #include <mpi.h>
 MPI::Datatype MPI::Datatype::Create_indexed_block( int count,
         int blocklength, const int array_of_displacements[]) const
 
 

 

INPUT PARAMETERS

count

Length of array of displacements (integer).

blocklength

Size of block (integer).

array_of_displacements

Array of displacements (array of integers).

oldtype

Old data type (handle).

OUTPUT PARAMETERS

newtype

New data type (handle).

IERROR

Fortran only: Error status (integer).

DESCRIPTION

MPI_Type_create_indexed_block creates an indexed data type with the same block length for all blocks.

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 ALSO

MPI_Type_indexed