Separate HTML for Basic Foil 7 Introduction to Fortran90 Arrays

Basic HTML version of Foils prepared 17 Sept 1996

Foil 7 Introduction to Fortran90 Arrays - II

From New CPS615HPF and Fortran90 Discussion Sept 17 96 Basic Simulation Track for Computational Science CPS615 -- Fall Semester 96. by Geoffrey C. Fox, Tom Haupt

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(!)