Re: Octave multi threading.

[Kai Torben Ohlhus]

On 6/18/20 10:44 PM, Ilaya Bharathi wrote:
> Hi team,
> 
> I'm looking for an Octave release which will utilize multiple cores of
> processors at a same time during heavy operations rather than a single
> core. 
> 
> If there is any release of octave or any add on libraries that fulfill
> my expectation, Please let me know. Waiting for your reply.
> 
> Many thanks 
> Ilaya bharathi
> 


What kind of heavy operations do you perform?  For example if you solve
large linear systems, x = A \ b;, you should make sure that you use a
(Open-)BLAS version that supports multiple threads with your Octave
installation.

If you run custom Octave code (m-files), you might be able to
parallelize tasks by using the Octave Forge (OF) parallel [1] or ocs [2]
package.

Additionally, it is helpful to know some details about your system to
give more precise advice.

Personally, I run a custom Singularity Octave image [3] on a cluster of
a few machines (each system has 28 cores [56 threads]) that really makes
use of all given resources for linear-algebra operations.  It can be
combined with the aforementioned OF packages at low installation effort.

HTH,
Kai

[1] https://octave.sourceforge.io/parallel/
[2] https://octave.sourceforge.io/ocl/
[3] https://wiki.octave.org/Octave_for_GNU/Linux#Singularity