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| From: | Dmitri A. Sergatskov |
| Subject: | [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows |
| Date: | Sun, 19 Jun 2016 23:14:32 +0000 (UTC) |
| User-agent: | Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0 |
Follow-up Comment #12, bug #48085 (project octave):
I think the size of the benchmark is too small. Try to increase
both numbers by factor of 10.
(Num=10000; ItNum=100;)
octave-cli (4.0.1 -- as provided by Fedora 24)
octave:1> lutest_v
Simple left division
Elapsed time is 13.3167 seconds.
LU decomposition
Elapsed time is 1.77494 seconds.
same octave (with gui):
>> lutest_v
Simple left division
Elapsed time is 12.9441 seconds.
LU decomposition
Elapsed time is 1.8458 seconds.
same octave ( --no-gui):
>> lutest_v
Simple left division
Elapsed time is 13.6711 seconds.
LU decomposition
Elapsed time is 1.78795 seconds.
octave 4.1.0+ (SELF-COMPILED):
>> lutest_v
Simple left division
Elapsed time is 13.1303 seconds.
LU decomposition
Elapsed time is 1.77669 seconds.
(i7-2600K CPU @ 3.40GHz)
Dmitri.
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