Parallel Processing Failure To Start Version 2014b

All,

I have searched through the questions and did the suggested troubleshooting that I could find; however, I need some professional type help.

I am running parallel processing with MATLAB2014b on Ubuntu. I have run with parallel processor before (same computer and configuration) with success and was running with 6 "workers" earlier today. I needed to make a variation of my code with an indexing issue and now the parallel processing has failed to start up again. I have reset my computer twice now without any success. Here is what is different in this case from what I have seen in other questions regarding this subject: it looks like it does create the setup (bottom left corner of the matlab screen) and gives me the amount of workers and the timeout remaining. It then errors out and states that "The client lost connection to worker #. This might be due to network problems."

I ran the validation (see below) and it fails at the parpool. I checked my license (license('test','distrib_computing_toolbox'), ans = 1) and have a valid one for it.

Any help is going to be greatly appreciated.

Best, Corbin

-----

pool = parpool(6)

parfor

 - run my function

end

delete(pool)

-----

When I ran the validation, here are the results:

VALIDATION DETAILS Profile: local Scheduler Type: Local

Stage: Cluster connection test (parcluster) Status: Passed Description:Validation Passed Command Line Output:(none) Error Report:(none) Debug Log:(none)

Stage: Job test (createJob) Status: Passed Description:Validation Passed Command Line Output:(none) Error Report:(none) Debug Log:(none)

Stage: SPMD job test (createCommunicatingJob) Status: Passed Description:Validation Passed Command Line Output:(none) Error Report:(none) Debug Log:(none)

Stage: Pool job test (createCommunicatingJob) Status: Passed Description:Validation Passed Command Line Output:(none) Error Report:(none) Debug Log:(none)

Stage: Parallel pool test (parpool) Status: Failed Description:The validation stage encountered a MATLAB exception. Command Line Output:(none) Error Report: Failed to initialize the interactive session.

Caused by: Error using parallel.internal.pool.InteractiveClient/start (line 355) Java exception occurred: com.mathworks.toolbox.distcomp.pmode.SessionDestroyedException at com.mathworks.toolbox.distcomp.pmode.Session.waitForSessionToStart(Session.java:607) at com.mathworks.jmi.NativeMatlab.SendMatlabMessage(Native Method) at com.mathworks.jmi.NativeMatlab.sendMatlabMessage(NativeMatlab.java:266) at com.mathworks.jmi.MatlabLooper.sendMatlabMessage(MatlabLooper.java:120) at com.mathworks.jmi.Matlab.mtFevalConsoleOutput(Matlab.java:1690) at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:195) at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:172) at com.mathworks.toolbox.distcomp.ui.profile.model.ValidationManager$2.runOnMatlabThread(ValidationManager.java:121) at com.mathworks.jmi.MatlabWorker$2.run(MatlabWorker.java:79) at com.mathworks.jmi.NativeMatlab.dispatchMTRequests(NativeMatlab.java:475) Debug Log:(none)

[Edric Ellis]

Hmm, looks like something is going wrong there - I would suggest contacting install support to get help with this.

[Han Peng]

May I ask have your problem solved? It seems that I confronted the same problem. Thanks.