Save data from parallel job session
psave(fileroot) saves the data from the workers' workspace into the files named [fileroot num2str(labindex)]. The files can be loaded by using the pload command with the same fileroot, which should point to a folder accessible to all the workers. If fileroot contains an extension, the character representation of the labindex is inserted before the extension. Thus, psave('abc') creates the files 'abc1.mat', 'abc2.mat', etc., one for each worker.
Create three arrays — one replicated, one variant, and one codistributed. Then save the data. (This example works in a communicating job or in pmode, but not in a parfor or spmd block.)
clear all; rep = speye(numlabs); var = magic(labindex); D = eye(numlabs,codistributor()); psave('threeThings');
This creates three files (threeThings1.mat, threeThings2.mat, threeThings3.mat) in the current working folder.
Clear the workspace on all the workers and confirm there are no variables.
clear all whos
Load the previously saved data into the workers. Confirm its presence.
pload('threeThings'); whos isreplicated(rep) iscodistributed(D)