NAME

       MPI_Type_create_indexed_block,  MPI_Type_create_hindexed_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, const int array_of_displacements[], MPI_Datatype oldtype, MPI_Datatype *newtype)

       int MPI_Type_create_hindexed_block(int count, int blocklength, const 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

       MPI_TYPE_CREATE_HINDEXED_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

       MPI::Datatype MPI::Datatype::Create_hindexed_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). In units of the  extent  of  oldtype
                 for MPI_Type_create_indexed_block and bytes for MPI_Type_create_hindexed_block.

       oldtype   Old data type (handle).

OUTPUT PARAMETERS

       newtype   New data type (handle).

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       MPI_Type_create_indexed_block  and  MPI_Type_create_hindexed_block  create an indexed data
       type with the same block length for all  blocks.  The  only  difference  between  the  two
       functions is MPI_Type_create_indexed_block takes an array of displacements in units of the
       extent of oldtype while MPI_Type_create_hindexed_block takes displacements in bytes.

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