matlab-multicore

Parallel computing without the Parallel Computing Toolbox

This is basically a "fork" of https://uk.mathworks.com/matlabcentral/fileexchange/13775-multicore-parallel-processing-on-multiple-cores, with some convenience functions added for my own convenience.

All credit goes to Markus Buehren

See also

https://github.com/ojwoodford/batch_job

Changes

• added spawnmulticoreslaveinstances and killmulticoreslaveinstances functions to automate instance launching
• made code usable as a package (simply copy files to path\+multicore\)

Basic usage

The simplest usage example is:

multicore.spawnmulticoreslaveinstances;
results = multicore.startmulticoremaster(@functionHandle, parameterCell);
multicore.killmulticoreslaveinstances;

This will

• determine the number of available (physical) cores on the local machine
• start slave instances such that the total number of workers (including master) matches the number of cores
• perform the calculations
• remove all temp files
• shut down all slaves

Advanced usage

multicoreDir = multicore.spawnmulticoreslaveinstances(n_slaves, multicoreDir, settings)

allows to pass the same settings to each of n_slaves, using multicoreDir for the job pool.

Additional machines can be pointed at the same multicoreDir.

multicore.killmulticoreslaveinstances(multicoreDir);

will shut down all slaves working on the job pool in multicoreDir