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Re: generalized eigensystems

From: Patrick Alken <patrick dot alken at colorado dot edu>
To: gsl-discuss at sourceware dot org
Date: Tue, 20 Mar 2007 13:17:13 -0600
Subject: Re: generalized eigensystems
References: <20070313050349.GA22421@hippogriff.physics.drexel.edu> <87ps7989yp.wl%bjg@network-theory.co.uk>

> Good work! I have done some memory testing with valgrind on testgen
> and not found any problems. I will try some numerical tests as well
> now.

I recently realized that when compiling gen.c with -O2 on gcc 3.4.6
it gives incorrect eigenvalue output on some of the integer test
cases. This seems to be a bug in the optimizer since its fine without
the -O2. Upgrading to gcc 4.1.2 seems to fix the problem.

Patrick Alken

Follow-Ups:
- Re: generalized eigensystems
  - From: Leopold Palomo Avellaneda

References:
- generalized eigensystems
  - From: Patrick Alken
- Re: generalized eigensystems
  - From: Brian Gough

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