From masc0155@rohan.sdsu.edu Mon Nov 10 11:33:03 2003 -0800
Date: Mon, 10 Nov 2003 11:32:11 -0800 (PST)
From: kris stewart <stewart@rohan.sdsu.edu>
To: cs575@rohan.sdsu.edu
Subject: Group Report - Compiler Autoparallel

Hello CS 575 Students

I will be updating our "calendar" home page for today's lecture to
reflect some very successful experiments I was able to run
that demonstrate Ch. 11 Programming Shared-Memory Multiprocessors
(Rohan) p. 223 using automatic parallelization by the Fortran f95
compiler.

For more details on SPARC Optimization and Parallel Processing are from

http://docs.sun.com/source/806-3566/plug_optimizing.html

This will become the basis of your group program using the Stommel
Model problem as the starting point.

You have had the copy of the Stommel Model code since Lab 4 (October 2)
and we have been discussing in class (and via the web page notes) some
of the background information that this Stommel Model is based on -

Jacobi Iteration

to approximate the solution of the steady-state Stommel Equation.

stc_00.c
stf_00.f

are the serial versions of this code in C and Fortran 90 and you have
your choise of which language version to focus on depending on your own
background.

The Goals is to explore the optimization and parallelization possible
using Rohan's Solaris compilers - without modification to the code.

We examine the sample code from Ch 11 in our text (p. 223)
that consisted of a simple code fragment with no loop dependencies.
This is an ideal candidate for the compiler to be able to demonstrate
its successful translation of the High Level Language into SPARC assembler
that can use separate processors, specified by the user using

setenv PARALLEL #   where the example had # = 1, 2, 4

and compiling using f95 with the

-xautopar

option.  I expect this same compiler option to work with cc

Your group assignment is to examine the information online from SUN
http://docs.sun.com/source/806-3566/plug_optimizing.html
to be able to apply the more general information our textbook has
provided as background for "Programming Shared-Memory Multiprocessors"
to your specific computing platform Rohan.

See you this afternoon

Kris Stewart
stewart@rohan.sdsu.edu
GMCS Office Hours MW 2-3:30pm