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[Octave-bug-tracker] [bug #54956] [octave forge] (interval) Unit test in
From: |
Kai Torben Ohlhus |
Subject: |
[Octave-bug-tracker] [bug #54956] [octave forge] (interval) Unit test in mpfr_matrix_mul_d.cc fails non-deterministically |
Date: |
Thu, 22 Nov 2018 08:46:40 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36 |
Follow-up Comment #1, bug #54956 (project octave):
Added Oliver as package maintainer.
Personally, I cannot reproduce your problem on Linux with Octave 4.4.1 and
interval 3.2.0. Which Octave version do you use and what is the output for
you running the test?
__octave_config_info__.ENABLE_OPENMP
nproc ("overridable")
A = vec (magic (2000));
tic; mpfr_matrix_mul_d (A', A, A', A); time_per_element = toc
A = [A A];
tic; mpfr_matrix_mul_d (A', A, A', A); time_per_element_parallel = toc / numel
(ans)
My system with Octave 4.4.1 "says":
>> __octave_config_info__.ENABLE_OPENMP
ans = 1
>> nproc ("overridable")
ans = 4
time_per_element = 3.4767
time_per_element_parallel = 0.65099
So at least my system "behaves" as Oliver expected with this test...
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