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From: | Dmitri A. Sergatskov |
Subject: | [Octave-bug-tracker] [bug #53700] eigs test failure related to ARPACK generating real NaN rather than complex NaN+1i*NaN |
Date: | Fri, 20 Apr 2018 14:54:38 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0 |
Follow-up Comment #21, bug #53700 (project octave): it works for me wit hany blas: LD_PRELOAD=/usr/lib64/atlas/libtatlas.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.33795 seconds. LD_PRELOAD=/usr/lib64/atlas/libsatlas.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.33742 seconds. LD_PRELOAD=/usr/lib64/libopenblaso.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.68253 seconds. octave:2> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.50371 seconds. LD_PRELOAD=/usr/lib64/libopenblasp.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.68722 seconds. LD_PRELOAD=/usr/lib64/libopenblas.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.42171 seconds. LD_PRELOAD=/usr/lib64/libblas.so ./run-octave -f -q octave:1> tic; test eigs; toc PASSES 179 out of 179 tests Elapsed time is 1.40842 seconds. Notice the times are different wrt blas version -- atlas seems faster than ref/openblas. So it is possible that actual solutions are different. (I think the size of the problem is too small to judge the efficiency of particular blas implementation.) Dmitri. -- _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?53700> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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