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[Bug-gsl] [bug #56843] Unit Tests in linalg eigen fail on non-x86 hardwa
From: |
Jason Furmanek |
Subject: |
[Bug-gsl] [bug #56843] Unit Tests in linalg eigen fail on non-x86 hardware due to slight accuracy differences |
Date: |
Sat, 31 Aug 2019 15:04:12 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0 |
URL:
<https://savannah.gnu.org/bugs/?56843>
Summary: Unit Tests in linalg eigen fail on non-x86 hardware
due to slight accuracy differences
Project: GNU Scientific Library
Submitted by: jayfurmanek
Submitted on: 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
Discussion Lock: Any
_______________________________________________________
Details:
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]
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