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[Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by
From: |
Marco Caliari |
Subject: |
[Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows |
Date: |
Wed, 15 Jun 2016 12:54:17 +0000 (UTC) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0 |
Follow-up Comment #3, bug #48085 (project octave):
The title is misleading. It is not the lu decomposition itself to be slow (it
is not measured), but the solution *after* a lu decomposition. In particular,
one permutation matrix multiplication, one lower triangular solution and one
upper triangular solution. Since I'm on linux with no 3.8.x available, can you
please measure separately the three steps above? Solution of triangular
systems is managed by LAPACK dtrtrs, can you tell us which version of LAPACK
are you using?
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- [Octave-bug-tracker] [bug #48085] slow LU decomposiotion? for octave 4 for windows, Tatsuro MATSUOKA, 2016/06/02
- [Octave-bug-tracker] [bug #48085] slow LU decomposiotion? for octave 4 for windows, Tatsuro MATSUOKA, 2016/06/02
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Kai Torben Ohlhus, 2016/06/02
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/02
- Message not available
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows,
Marco Caliari <=
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/16
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Marco Caliari, 2016/06/16
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/16
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/17
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Marco Caliari, 2016/06/17
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/17
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/18
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/19
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Dmitri A. Sergatskov, 2016/06/19
- [Octave-bug-tracker] [bug #48085] Slow solving simultaneous equations by LU decomposition for octave 4 on windows, Tatsuro MATSUOKA, 2016/06/19