Basic HTML version of Foils prepared 26 September 1996

Foil 19 Introduction to Fortran90 Arrays - II

From HPCC Software Technologies Fall 96 -- Overview and HPF Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 26 September 96. by Geoffrey C. Fox
Extract sections (subarrays) of arrays as u(lb:ub:step)
  • lb is Lower Bound
  • ub is Upper Bound
  • step (defaults to 1) is step
masked (conditional) Array operations using WHERE .... ELSEWHERE
Can still do Fortran77 array element operations (DO Loops) but of course this might not be interpretable for efficient parallelism by HPF compiler
Note Fortran90 designed for science and engineering with originally special concern for vector supercomputers but Cray supports F77 better than F90(!)

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