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Tips and tricks

83 bytes added, 19:29, 17 September 2016
→‎Changing BLAS: Should not write as if all Linux workstations used apt-get
===Changing BLAS===
Many Octave functions are wrappers to optimized numerical libraries, notably BLAS and ATLAS. It is possible to achieve impressive performance gains by simply using a library tuned to your platform. One example is using OpenBLAS to replace the default BLAS implementation ([ further details]).
On some Linuxdistributions, this just takes a few commands:. For instance, on Ubuntu, it usually suffices to run
sudo apt-get install libopenblas-base libatlas3gf-base
Then runfollowed by
sudo update-alternatives --config
and select then selecting the openblas option.

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