Re: Building octave 3.8.2 from source on Ubuntu 14.04 for using multiple cores

[lukshuntim]

On Saturday, September 06, 2014 05:42 AM, Sunil Shah wrote:
> Hi ST,
>
> Thanks for pointing out the obvious error on my part in testing openblas.
>
> Happily, with octave 3.8.1 switching to
>
> /usr/lib/openblas-base/__libblas.so.3
> and
> /usr/lib/lapack/liblapack.so.3
>
> does work.   It also uses all available cores for EC2.  So, now I see
> cpu usage go up to 1600% on 16 cores.
>
>
> When building octave 3.8.2 from source, do I need to specify these blas
> and lapack libraries as configure options explicitly or it will pick
> them automatically given that they have been set through
> update-alternatives ?

No, the package maintainers did a good job for us. Dependencies are 
automatically pulled in. The libraries are in the standard places. You 
can check what files are installed by the packages using tools like 
apt-file, wajig, or synaptic.

Regards,
ST
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