MPIR_Type_indexed(3)

MPIR_Type_indexed3

Create an indexed datatype

Usage

int MPIR_Type_indexed(int count,
                      const int *blocklength_array,
                      const void *displacement_array,
                      int dispinbytes, MPI_Datatype oldtype, MPI_Datatype * newtype)

Input parameters

count: - number of blocks in type

blocklength_array: - number of elements in each block

displacement_array: - offsets of blocks from start of type (see next parameter for units)

dispinbytes: - if nonzero, then displacements are in bytes (the displacement_array is an array of ints), otherwise they in terms of extent of oldtype (the displacement_array is an array of MPI_Aints)

oldtype: - type (using handle) of datatype on which new type is based

Output parameters

newtype: - handle of new indexed datatype

Return value

0 on success, -1 on failure.