Re: Instructions for Installing BLAS and LAPACK library on Octave 5.2.0

On Friday, 25 September 2020, Ilaya Bharathi <[email protected]>
wrote:

> Hi team,
>
> I'm looking for Instructions to install libraries for multithreading
> purposes on Octave 5.2.0 on the Windows 10 operating system.
>
> After some research, I found BLAS and LAPACK libraries would help to
> implement multithreading. Unfortunately, I wasn't able to find the proper
> instructions to configure the libraries I need.
>

The openblas library is included with your octave installation and
configured for use (assuming you used the installation exe program rather
than the zip file).

This means if you have a program such as:
   a = rand(1, 1000000);
   b = a*a;

then Octave will automatically use openBLAS to do the calculations. By
default openblas uses all processor threads. You can configure the number
of threads using the environment variable OPENBLAS_NUM_THREADS.

Cheers Ian