How to use parallel 'for' loop in Octave or Scilab?

matlab parallel-processing octave scilab
han17 picture han17 · Jul 26, 2014 · Viewed 11.6k times · Source

I have two for loops running in my Matlab code. The inner loop is parallelized using Matlabpool in 12 processors (which is maximum Matlab allows in a single machine).

I dont have Distributed computing license. Please help me how to do it using Octave or Scilab. I just want to parallelize 'for' loop ONLY.

There are some broken links given while I searched for it in google.

Answer

ederag picture ederag · Aug 21, 2014

parfor is not really implemented in octave yet. The keyword is accepted, but is a mere synonym of for (http://octave.1599824.n4.nabble.com/Parfor-td4630575.html).

The pararrayfun and parcellfun functions of the parallel package are handy on multicore machines. They are often a good replacement to a parfor loop.

For examples, see http://wiki.octave.org/Parallel_package. To install, issue (just once)

pkg install -forge parallel

And then, once on each session

pkg load parallel

before using the functions

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