Losing access to file server upon entering parfor loop in code

Angela Nietz

2021 10 15

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I am processing data by loading files from an external drive, running my processing code, and then saving the processed data to a network drive/file server. In order to get through data faster, I am using a parfor loop to process multiple files at once and save the outputs (I'm using a custom save function to get around parfor issues with using the built-in matlab save function). I was able to run the code sucessfully without problems once and then on subsequent runs when the code gets to the parfor loop matlab loses access to the network drive/file server for saving the files (I did not change the code or parallel preference). I have added the main directory folder for saving the files to the network drive/server to the worker search path in the cluster profile manager as well as all custom functions called by the main code, however the issue still occurs. Occassionally it is fixed/runs appropriately after remapping the network drive/file server or restarting matlab and my computer.

Is there a potential fix for this issue?