Basic HTML version of Foils prepared 19 September 98

Foil 67 Example of Vector type

From MPI Message Passing Interface Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
1 Suppose in Fortran, we have an array
  • u (0 : nxblock+1, 0 : nyblock+1)
  • where we want to send rows and columns of elements from 1 : nxblock and 1 : nyblock
  • in Fortran, arrays are stored column major order (C is row major)
2 Contiguous elements
3 MPI_Type_vector( nyblock, 1, nxblock+2, MPI_REAL, rowtype )
4 defines a row of elements 1:nyblock
5 0 nyblock+1
6 nxblock+1
in Table To:

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