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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: | Mon, 20 Jun 2016 03:29:05 +0000 (UTC) |
User-agent: | Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0 |
Follow-up Comment #17, bug #48085 (project octave): I re-run the test on the same computer/same octave binary but preloading reference blas library: LD_PRELOAD=/usr/lib64/libblas.so octave-cli octave:1> lutest_vp2 Simple left division Elapsed time is 3.4795 seconds. LU decomposition c=P*B Elapsed time is 0.0395591 seconds. y=L\c Elapsed time is 14.4594 seconds. x=U\y Elapsed time is 15.1527 seconds. So it looks like your octave 4.1.0 uses reference blas rather than openblas... Dmitri. -- _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?48085> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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