Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!cmcl2!adm!smoke!chidsey
From: chidsey@smoke.brl.mil (Irving Chidsey)
Newsgroups: comp.lang.fortran
Subject: -i8 flag, was Re: DEC System 5000 f77 bug
Message-ID: <16350@smoke.brl.mil>
Date: 7 Jun 91 13:15:34 GMT
References: <23143@shlump.lkg.dec.com> <OLES.91Jun5144301@kelvin.uio.no> <1991Jun6.165953.14819@rice.edu>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 25

In article <1991Jun6.165953.14819@rice.edu> zdenko@katzo.rice.edu (zdenko tomasic) writes:
<It is very unlikely that -i8 or the equivalent exists for MIPS
<R2000/R3000 chips as they are 32-bit chips. You may have to wait
<for R4000 (64-bit) to have such a flag (but there is no guarantee
<it will be implemented).

	Why?  Emulating 64 bits on a 32 bit machine is simple, but 
it does affect memory requirements and execution speed.  Our Convex
has a -i8 compiler flag.

	Convex also has a -cfc flag on their Fortran compiler that makes it
think it is a Cray Fortran Compiler.  With present loads clocktime is 
about the same on our Convex as on our Cray, and so are the answers.
Clock time scatters Much more than the answers. ;^)

<Zdenko Tomasic, Rice U., Chem. Dept., P.O. Box 1892, Houston, Tx 77251
<INTERNET: zdenko@katzo.rice.edu

								Irv

-- 
I do not have signature authority.  I am not authorized to sign anything.
I am not authorized to commit the BRL, the DA, the DOD, or the US Government
to anything, not even by implication.  They do not tell me what their policy 
is.  They may not have one.		Irving L. Chidsey  <chidsey@brl.mil>