Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!usc!cs.utexas.edu!uunet!mcvax!ukc!icdoc!bilpin!ian
From: ian@bilpin.UUCP (Ian Jones)
Newsgroups: comp.unix.aux
Subject: Re: Unisoft optimizing FORTRAN vs. f77
Summary: Unisoft FORTRAN
Keywords: FORTRAN compilers for A/UX
Message-ID: <1595@bilpin.UUCP>
Date: 22 Jun 89 13:39:11 GMT
References: <2311@pembina.UUCP>
Organization: SRL, London, England
Lines: 25

In article <2311@pembina.UUCP>, simon@alberta.uucp (Simon Tortike) writes:
> Does anyone have some comments on how the Unisoft optimizing FORTRAN
> compares with the f77 included in the A/UX v1.1 release?

We have assisted a software developer in porting an extremely large FORTRAN
application to A/UX (1.1) . We encountered several problems with the standard 
f77 compiler, many of which we worked around, but were finally beaten.

The Unisoft compiler coped well with the code, but I don't have information
on how fast or compact the code is, but the documentation contains extensive
notes on the different optimisations performed. It seems that the compiler
works hard to give good code.

As far as debugging goes, this compiler supports the '-g' option so that
the standard symbolic debugger (sdb) may be used, but be warned that it is 
very difficult to debug programs which have been wholly or partially optimised.

I was most impressed that the compiler coped with such a large (several megs
of code, and many more of data) without complaint. I hope this helps!

-- 
_______________________________________________________________________________
Ian  Jones          SRL Data	      || Apple link : UK0001
UK A/UX National support organisation || UUCP	  : ian@bilpin.uucp
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