From ripley@stats.ox.ac.uk  Tue Nov  6 15:25:16 2001
From: ripley@stats.ox.ac.uk (Prof Brian Ripley)
Date: Tue, 6 Nov 2001 15:25:16 +0000 (GMT)
Subject: R-devel & ATLAS generates Dr. Watson on NT (was RE: [Rd] Look,
 Wa tson! La.svd & ATLAS)
In-Reply-To: <51F9C42DA15CD311BD220008C707D81903DC8368@usrymx10.merck.com>
Message-ID: <Pine.LNX.4.31.0111061520390.22427-100000@gannet.stats>

On Tue, 6 Nov 2001, Liaw, Andy wrote:

> I've done more test with the following results:
>
> I have two versions of ATLAS 3.2.1.  One was compiled on my old Thinkpad
> 600E (PII), the other was compiled on my new Thinkpad T22 (PIIISSE1).
>
> I compiled R-devel dated 10/31, 11/01 and 11/04, linked against either of
> the two ATLAS libs.  All gave Dr. Watson when given this code:
>
>   La.svd(matrix(runif(1e5), 1e3, 1e2))
>
> (There's no problem with smaller matrices, say 100x100.)
>
> When compiled without ATLAS, the above code ran fine in all three R-devel's.
>
> I tried R-1.3.1 with both ATLAS libs, and both ran fine.
>
> Any ideas on what could be wrong?  Seems like R-devel doesn't like ATLAS, at
> least on WinNT...

I have no idea.  Quite possible though.  As we no longer have an active
Windows maintainer, it's down to you.  (Very little testing has been done
on Windows since 1.3.1 was released.)  You need to build a debug version
and look at the dump with gdb to start to debug the problem.

It's not realistic to expect R-devel to work on minority platforms all the
time.  These days it is unrealistic to expect much support on Windows
at all.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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R-devel & ATLAS generates Dr. Watson on NT (was RE: [Rd] Look, Wa tson! La.svd & ATLAS)
Prof Brian Ripley