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| From: | Dmitri A. Sergatskov |
| Subject: | [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow |
| Date: | Wed, 15 Aug 2018 17:56:31 -0400 (EDT) |
| User-agent: | Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
Follow-up Comment #18, bug #45890 (project octave):
But it fast in 4.2.2 9same computer):
octave:1> bm_sparse
----------------------------------------------------------------------
GNU Octave Version: 4.2.2
GNU Octave License: GNU General Public License
Operating System: Linux 4.17.12-200.fc28.x86_64 #1 SMP Fri Aug 3 15:01:13 UTC
2018 x86_64
----------------------------------------------------------------------
no packages installed.
N=1000000 NNZ=20000000 NRUNS=5
sparse: 2.505576 (0.008103)
2*A : 0.257853 (0.005682)
A' : 2.001430 (0.008049)
A+B : 0.841132 (0.006074)
A*x : 0.425208 (0.006004)
A'*x : 0.160962 (0.004781)
Dmitri.
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