URL:
<http://savannah.gnu.org/bugs/?43015>
Summary: eigen test fails on 32-bit (x86) Linux with -O3
Project: GNU Scientific Library
Submitted by: psa
Submitted on: Mon 18 Aug 2014 06:19:04 PM GMT
Category: Runtime error
Severity: 3 - Normal
Operating System:
Status: None
Assigned to: None
Open/Closed: Open
Release:
Discussion Lock: Any
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Details:
>From victor.zverovich =at= gmail.com
Hello,
I noticed that eigen test fails on 32-bit Linux (x86) when compiled with -O3
flag:
$ ./configure CFLAGS="-O3"
$ make
$ eigen/test
FAIL: gen, direct eigenvalue(4) imag, random (-0.481216772353650846
observed vs 0.481216772353650846 expected) [877968]
FAIL: gen, direct eigenvalue(5) imag, random (0.481216772353650901 observed
vs -0.481216772353650846 expected) [877970]
FAIL: gen, direct eigenvalue(15) imag, random (6.85872455924790447 observed
vs -6.85872455924790536 expected) [877990]
FAIL: gen, direct eigenvalue(16) imag, random (-6.85872455924790536
observed vs 6.85872455924790625 expected) [877992]
I'm using GSL version 1.16, 32-bit Ubuntu 10.04 and GCC 4.4.3.
Best regards,
Victor
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