MPI_TYPE_VECTOR(count, blocklength, stride, oldtype, newtype) IN count number of blocks IN blocklength number of elements in each block IN stride spacing between start of each block, measured as number of elements IN oldtype old datatype OUT newtype new datatypeMPI_Type_vector(int count, int blocklength, int stride, MPI_Datatype oldtype, MPI_Datatype *newtype)
MPI_TYPE_VECTOR(COUNT, BLOCKLENGTH, STRIDE, OLDTYPE, NEWTYPE, IERROR)INTEGER COUNT, BLOCKLENGTH, STRIDE, OLDTYPE, NEWTYPE, IERROR
MPI_TYPE_VECTOR is a constructor that allows replication of a datatype into locations that consist of equally spaced blocks. Each block is obtained by concatenating the same number of copies of the old datatype. The spacing between blocks is a multiple of the extent of the old datatype. The action of the Vector constructor is represented schematically in Figure .
A call to MPI_TYPE_CONTIGUOUS(count, oldtype, newtype) is equivalent to a call to MPI_TYPE_VECTOR(count, 1, 1, oldtype, newtype), or to a call to MPI_TYPE_VECTOR(1, count, num, oldtype, newtype), with num arbitrary.