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Re: [Octave 5.2.0 @ Ubuntu 20.04] Long duration of complex matrix invers

From: Thomas D. Dean
Subject: Re: [Octave 5.2.0 @ Ubuntu 20.04] Long duration of complex matrix inverse
Date: Sun, 29 Mar 2020 15:13:08 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

On 2020-03-29 14:40, Dmitri A. Sergatskov wrote:

On Sun, Mar 29, 2020 at 5:25 PM Thomas D. Dean <address@hidden
<mailto:address@hidden>> wrote:

    On 2020-03-29 13:52, Thomas D. Dean wrote:

     > I do not see atlas or blas in /usr/local/bin/octave

    I don't know where my head is. is linked in to liboctave.

      > ldd /usr/local/lib/octave/7.0.0/ | grep blas
     => /usr/lib/x86_64-linux-gnu/

I got similar timing if use reference blas.
You can try to start octave as:


(on Redhat/Fedora, liopenblasp is the name of the multithreaded openblas
adjust accordingly to your system)


I do not have lib* except in python3.6 and maple2019
directories.  (Neither work).

I cloned openblas.  Now, build it and rebuild octave.  Back later.

Tom Dean

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