psave

(To be removed) Save data from communicating job session

psave will be removed in a future release. Use dsave instead. For more information, see pload and psave will be removed.

Syntax

psave(fileroot)


Arguments

fileroot

Part of filename common to all saved files.

Description

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.

Examples

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)

Compatibility Considerations

pload and psave will be removed

Warns starting in R2020a

In a future release, the psave and pload functions will be removed. To save and load data on the workers, in the form of Composite arrays or distributed arrays, use dsave and dload instead.