bugGNU Scientific Library - Bugs: bug #56843, Unit Tests in linalg eigen fail on...

 
 

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bug #56843: Unit Tests in linalg eigen fail on non-x86 hardware due to slight accuracy differences

Submitter:  Jason Furmanek <jayfurmanek>
Submitted:  Sat 31 Aug 2019 07:04:10 PM UTC
   
 
Category:  Accuracy problem Severity:  3 - Normal
Operating System:  Linux Status:  None
Assigned to:  None Open/Closed:  Open
Release:  2.5

Tue 21 Jun 2022 10:16:07 PM UTC, comment #1: 

I think these two distro reports are related, although one of them is on x86_64:

https://bugs.gentoo.org/664936
https://git.adelielinux.org/adelie/packages/-/issues/504

Michael Orlitzky <mjo>
Sat 31 Aug 2019 07:04:10 PM UTC, original submission:  

I'm seeing a few unit tests (as run with "make check") fail on non-x86 hardware, specifically ppc64le and aarch64.

These looks to be just slight accuracy differences and may be chalked up to functional differences in hardware. I don't see any tolerance controls for these tests to account for differences like these. It would be nice if there were.

====================================
   gsl 2.5: linalg/test-suite.log
====================================

# TOTAL: 1
# PASS:  0
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: test
==========

FAIL: mcholesky_invert unscaled hilbert (  4,  4)[0,2]: -2.55795384873636067e-13                        0
 (-2.55795384873636067e-13 observed vs 0 expected) [789499]





===================================
   gsl 2.5: eigen/test-suite.log
===================================

# TOTAL: 1
# PASS:  0
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: test
==========

FAIL: herm random, normalized(1), unsorted (0.999999999999999112 observed vs 1 expected) [117761]
FAIL: herm random, normalized(2), val/asc (0.999999999999999112 observed vs 1 expected) [117789]
FAIL: herm random, normalized(0), val/desc (0.999999999999999112 observed vs 1 expected) [117811]
FAIL: herm random, normalized(1), abs/asc (0.999999999999999112 observed vs 1 expected) [117836]
FAIL: herm random, normalized(1), abs/desc (0.999999999999999112 observed vs 1 expected) [117860]

Jason Furmanek <jayfurmanek>

 

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