MATLAB: Simultaneous reading of mat file allowed

Question

I know it is bad to allow multiple users to write to a mat-file simultaneously (or one read while another is writing).

But can two users simultaneously read (only) from a mat-file? Or do we need to lock out other users while another performs any R/W operation?

Answer 1

Having multiple instances of the same file is not recommended. A possible workaround for this issue would be to create a "lock" file for each instance of MATLAB. You can find an example on how to use the lock mechanism in the below link.

https://de.mathworks.com/matlabcentral/answers/347790-unable-to-read-mat-file-shared-resources-between-matlab-instances