Parfor error: The client lost connection to lab

Dear all, I'm using a parfor loop with 8 workers. My pc has 8 cores and 16 GB RAM.

Each worker has to run a function that calls a simulink model. After a lot of iterations (more than 3600) I get the following error "The client lost connection to lab X This might be due to network problems ..." I don't know which is the problem. The function that is sent to the workers is always the same.

I read on a forum that another user solves this problem by closing the workers and opening them again. I didn't try this solution because i want to know if it is a known issue and if there is another solution.

I could be a memory leak, but i have no idea. Any suggestions?

Answer 1

[Walter Roberson]

The most common cause of this happening would be running out of memory, either due to memory leak or due to there being more than 2 Gb of data to transfer (older versions; I do not recall when the limit was lifted.)

[Antonio Parziale]

I do not trasfer a lot of date between workers. They are just some arrays.

So, do you think that to close and to open the workers after some iterations is a good idea?