Xref: utzoo comp.lang.fortran:4136 comp.lang.c:34221
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From: ghe@comphy.physics.orst.edu (Guangliang He)
Newsgroups: comp.lang.fortran,comp.lang.c
Subject: Re: Fortran vs. C for numerical work
Message-ID: <21884@orstcs.CS.ORST.EDU>
Date: 21 Nov 90 18:43:08 GMT
References: <BGLENDEN.90Nov21003342@mandrill.cv.nrao.edu>
Sender: usenet@orstcs.CS.ORST.EDU
Reply-To: ghe@comphy.PHYSICS.ORST.EDU.UUCP (Guangliang He)
Organization: IBM T.J. Watson Research, NY
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In article <BGLENDEN.90Nov21003342@mandrill.cv.nrao.edu> bglenden@mandrill.cv.nrao.edu (Brian Glendenning) writes:
>
>It is often stated that Fortran is better than C for numerical work.
>[Some deleted text here]

It may not be true any more. A friend of mine brought a little fortran
program (It is two big do loops with some instrinsic function calculation in
the loop.) and the C translation of the fortran program. We compiled two
program on a IBM RISC System 6000/530 with xlc and xlf. To my surprise, the
excutable from C is faster than the excutable from Fortran by a few percent.

>Brian
>--
>       Brian Glendenning - National Radio Astronomy Observatory
>bglenden@nrao.edu          bglenden@nrao.bitnet          (804) 296-0286

Guangliang He
ghe@physics.orst.edu
                            Guangliang He

                            ghe@PHYSICS.ORST.EDU
                            hegl@ORSTVM.BITNET