From: Jay Fantini <jay.fantini@dfrc.nasa.gov>
Subject: Parallel execution on SGI with GNAT
Date: Mon, 29 Oct 2001 14:27:56 -0800
Date: 2001-10-29T22:31:45+00:00 [thread overview]
Message-ID: <3BDDD7EC.EC896675@dfrc.nasa.gov> (raw)
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Ada experts,
Maybe you can help me: I am trying to get the following program to execute
on a 6-CPU SGI ONYX-2 R12000 based system. The system is running IRIX 6.5
and I am using GNAT Ada-95 version 3.11p for SGI. The program does compile
and run but it only uses 1 CPU and I would like for it to execute on 3 CPUs.
This program is a prototype for a much larger program.
Do I need to set an environment variable or am I using the wrong Ada-95
construct? Is there a PRAGMA I should use? Please post all answers to this NG.
TIA,
-Jay
-- ******************************************************************
with text_io;
with integer_text_io;
with tems_floating_point_std;
with floating_point_math_lib;
with fp_display;
with higher_functions;
with wexzal;
use tems_floating_point_std;
use floating_point_math_lib;
use higher_functions;
use wexzal;
procedure hog is
task type wzlsum(upper_limit: integer);
task body wzlsum is
x :floating_point;
s :floating_point;
begin
for i in 1..upper_limit loop
x:=floating_point(i);
s:=s+1.0/(x*wzl(x));
end loop;
text_io.put("Sum for n=");
integer_text_io.put(upper_limit);
text_io.put(" is S=");
fp_display.prt(s);
text_io.new_line;
end wzlsum;
cpu_hog_5 :wzlsum(5000000); -- Do big calculation in parallel
cpu_hog_4 :wzlsum(4000000);
cpu_hog_3 :wzlsum(3000000);
begin
text_io.put_line("Program HOG is done!");
end hog;
next reply other threads:[~2001-10-29 22:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-29 22:27 Jay Fantini [this message]
2001-10-29 22:59 ` Parallel execution on SGI with GNAT Marin David Condic
2001-10-30 5:08 ` brentcarnellis
2001-10-31 8:56 ` Peter Hermann
2001-10-30 11:30 ` Tarjei T. Jensen
2001-10-30 12:31 ` David C. Hoos
2001-10-30 14:11 ` Dale Pennington
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