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Failed to start a parallel pool in matlab2015a

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Han Peng
Han Peng on 7 Apr 2015
Answered: Nik Gap on 22 Apr 2020
Hi, I have tried parpool and it ended as:
-----------------
Error using parpool (line 103)
Failed to start a parallel pool. (For information in addition to the
causing error, validate the profile 'local' in the Cluster Profile
Manager.)
Caused by:
Error using parallel.internal.pool.InteractiveClient>iThrowWithCause
(line 667)
Failed to initialize the interactive session.
Error using
parallel.internal.pool.InteractiveClient>iThrowIfBadParallelJobStatus
(line 768)
The interactive communicating job failed with no message.
----------
I then tried to validate the profile 'local', and got these details:
----------
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: Failed
Description:The job errored or did not reach state finished.
Command Line Output:(none)
Error Report:(none)
Debug Log:
LOG FILE OUTPUT:
Stage: Pool job test (createCommunicatingJob)
Status: Skipped
Description:Validation skipped due to previous failure.
Command Line Output:(none)
Error Report:(none)
Debug Log:(none)
Stage: Parallel pool test (parpool)
Status: Skipped
Description:Validation skipped due to previous failure.
Command Line Output:(none)
Error Report:(none)
Debug Log:(none)
-------
I have searched for answered and tried to close my computer firewall but it didn't work. Does anyone know how to solve this problem? Thanks in advance!

  1 Comment

Edric Ellis
Edric Ellis on 8 Apr 2015
I suggest you contact MathWorks technical support to resolve installation problems like this.

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Accepted Answer

Jason Fice
Jason Fice on 14 Jul 2015
I had the same error, and validation results. I contacted Mathworks for help and their suggestion was simple and worked for me. See below for an excerpt from their response to me:
"Thank you for contacting MathWorks Installation and Licensing Support. If you are experiencing issues with opening parpool with the local cluster, you may be having issues with the new local mpiexec implementation. It may not woork on all hardware and software configurations. Try the following command to disable this feature:
distcomp.feature( 'LocalUseMpiexec', false )
If this resolves the issue, add the line to your startup.m file. If you do not have a startup.m, create a new file called startup.m in your MATLAB startup directory and add the above line.
Disabling the local mpiexec will not slow down parpool operation but it may make parpool open more slowly. The decrease in efficacy is negligible"

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LeWis RoofRack
LeWis RoofRack on 6 Mar 2017
This solved my problem:
distcomp.feature( 'LocalUseMpiexec', false )
Thanks!
Muahammad Younas
Muahammad Younas on 10 Feb 2018
hi everyone.... i have the same problem using matlab (2015a)... i am not able to solve the problem with above mentioned method... while putting "distcomp.feature( 'LocalUseMpiexec', false )" in "startup.m". Access denied answer is shown to me..... Please help me ...
Amany Arafa
Amany Arafa on 22 Mar 2018
Run Matlab as Administrator so you can start parpool

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More Answers (4)

Tao Wang
Tao Wang on 13 Jul 2018
Edited: Tao Wang on 13 Jul 2018
Hi Mathworks,
I have a similar issue (matlab R2018a), but the solution "distcomp.feature( 'LocalUseMpiexec', false )" does not work for me.
Here is the Cluster profile report. Any ideas?
VALIDATION REPORT Profile: local Scheduler Type: Local
Stage: Cluster connection test (parcluster) Status: Passed Start Time: Fri Jul 13 12:55:45 PDT 2018 Finish Time: Fri Jul 13 12:55:45 PDT 2018 Running Duration: 0 min 0 sec Description: Error Report: Command Line Output: Debug Log:
Stage: Job test (createJob) Status: Failed Start Time: Fri Jul 13 12:55:45 PDT 2018 Finish Time: Fri Jul 13 12:55:45 PDT 2018 Running Duration: 0 min 0 sec Description: An unexpected error occurred accessing properties: "AdditionalPaths" "ApiTag" "AttachedFileData" "AttachedFilePaths" "AttachedFiles" "AutoAttachFiles" "AutoAddClientPath" "CreateDateTime" "CreateTime" "DependentFiles" "EnvironmentVariables" "ExecutionMode" "FinishDateTime" "FinishTime" "JobData" "MATLABDrivePathMap" "Name" "NumPathsToAppend" "NumThreads" "ProductKeys" "StartDateTime" "StartTime" "StateEnum" "SubmitDateTime" "SubmitTime" "Tag" "Username" "Version" "JobSchedulerData" Error Report: An unexpected error occurred accessing properties: "AdditionalPaths" "ApiTag" "AttachedFileData" "AttachedFilePaths" "AttachedFiles" "AutoAttachFiles" "AutoAddClientPath" "CreateDateTime" "CreateTime" "DependentFiles" "EnvironmentVariables" "ExecutionMode" "FinishDateTime" "FinishTime" "JobData" "MATLABDrivePathMap" "Name" "NumPathsToAppend" "NumThreads" "ProductKeys" "StartDateTime" "StartTime" "StateEnum" "SubmitDateTime" "SubmitTime" "Tag" "Username" "Version" "JobSchedulerData"
Caused by: Error using assert Too many input arguments. Command Line Output: Debug Log:
Stage: SPMD job test (createCommunicatingJob) Status: Failed Start Time: Fri Jul 13 12:55:45 PDT 2018 Finish Time: Fri Jul 13 12:55:45 PDT 2018 Running Duration: 0 min 0 sec Description: An unexpected error occurred accessing properties: "AdditionalPaths" "ApiTag" "AttachedFileData" "AttachedFilePaths" "AttachedFiles" "AutoAttachFiles" "AutoAddClientPath" "CreateDateTime" "CreateTime" "DependentFiles" "EnvironmentVariables" "ExecutionMode" "FinishDateTime" "FinishTime" "JobData" "MATLABDrivePathMap" "Name" "NumPathsToAppend" "NumThreads" "ProductKeys" "StartDateTime" "StartTime" "StateEnum" "SubmitDateTime" "SubmitTime" "Tag" "Username" "Version" "JobSchedulerData" "MinNumWorkers" "MaxNumWorkers" Error Report: An unexpected error occurred accessing properties: "AdditionalPaths" "ApiTag" "AttachedFileData" "AttachedFilePaths" "AttachedFiles" "AutoAttachFiles" "AutoAddClientPath" "CreateDateTime" "CreateTime" "DependentFiles" "EnvironmentVariables" "ExecutionMode" "FinishDateTime" "FinishTime" "JobData" "MATLABDrivePathMap" "Name" "NumPathsToAppend" "NumThreads" "ProductKeys" "StartDateTime" "StartTime" "StateEnum" "SubmitDateTime" "SubmitTime" "Tag" "Username" "Version" "JobSchedulerData" "MinNumWorkers" "MaxNumWorkers"
Caused by: Error using assert Too many input arguments. Command Line Output: Debug Log:
Stage: Pool job test (createCommunicatingJob) Status: Skipped Start Time: Finish Time: Running Duration: Description: Validation skipped due to previous failure. Error Report: Command Line Output: Debug Log:
Stage: Parallel pool test (parpool) Status: Skipped Start Time: Finish Time: Running Duration: Description: Validation skipped due to previous failure. Error Report: Command Line Output: Debug Log:

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Star Rats
Star Rats on 10 Apr 2019
This works for my case:
For Windows:
Go to the Start Menu and select Run.
Type in %APPDATA% and press Enter.
For Microsoft Windows Vista:
Type in %APPDATA% in the "Start Search" field above the Start menu and press Enter.
From the Application Data folder, go to MathWorks to MATLAB.
Rename or delete the folder "local_scheduler_data" (when working with MATLAB versions prior to R2012a) or "local_cluster_jobs" (when working with MATLAB R2012a and newer).
Once cleared, try restarting MATLAB.
Source: here
haseeb qureshi
haseeb qureshi on 25 Mar 2020
Cheers Star Rats, your solution worked for me. You're a star!

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Mininath Bendre
Mininath Bendre on 25 Apr 2016
Thanks a lot Jason Fice and Martin Muller,
distcomp.feature( 'LocalUseMpiexec', false )
This one works........

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shuai li
shuai li on 18 Apr 2019
I got some other issues. The parallel pool starts normally with small number of workers set. Commands parpool(4) and parpool(6) works well. But when the number of workers increases, command parpool(10) cannot start the pool correctly, and gives the following errors:
Error using parpool (line 113)
Parallel pool failed to start with the following error. For more detailed
information, validate the profile 'local' in the Cluster Profile Manager.
Caused by:
Error using parallel.internal.pool.InteractiveClient>iThrowWithCause
(line 678)
Failed to initialize the interactive session.
Error using
parallel.internal.pool.InteractiveClient>iThrowIfBadParallelJobStatus
(line 792)
The interactive communicating job failed with no message.
Does anyone know how to fix the problem?
Thanks!

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Nik Gap
Nik Gap on 22 Apr 2020
I have got another problem: only the last stage failed (Parallel pool test). Error: Failed to locate and destroy old interactive jobs.
What should I do?
VALIDATION REPORT
Profile: local
Scheduler Type: Local
Stage: Cluster connection test (parcluster)
Status: Passed
Start Time: Wed Apr 22 13:31:21 CEST 2020
Finish Time: Wed Apr 22 13:31:21 CEST 2020
Running Duration: 0 min 0 sec
Description:
Error Report:
Command Line Output:
Debug Log:
Stage: Job test (createJob)
Status: Passed
Start Time: Wed Apr 22 13:31:21 CEST 2020
Finish Time: Wed Apr 22 13:31:33 CEST 2020
Running Duration: 0 min 13 sec
Description:
Error Report:
Command Line Output:
Debug Log:
Stage: SPMD job test (createCommunicatingJob)
Status: Passed
Start Time: Wed Apr 22 13:31:34 CEST 2020
Finish Time: Wed Apr 22 13:31:51 CEST 2020
Running Duration: 0 min 18 sec
Description: Job ran with 28 workers.
Error Report:
Command Line Output:
Debug Log:
Stage: Pool job test (createCommunicatingJob)
Status: Passed
Start Time: Wed Apr 22 13:31:51 CEST 2020
Finish Time: Wed Apr 22 13:32:14 CEST 2020
Running Duration: 0 min 23 sec
Description: Job ran with 28 workers.
Error Report:
Command Line Output:
Debug Log:
Stage: Parallel pool test (parpool)
Status: Failed
Start Time: Wed Apr 22 13:32:15 CEST 2020
Finish Time: Wed Apr 22 13:32:15 CEST 2020
Running Duration: 0 min 1 sec
Description: Failed to locate and destroy old interactive jobs.
Error Report: Failed to locate and destroy old interactive jobs.
Caused by:
Error using parallel.Cluster/findJob (line 74)
Unknown type: concurrentconcurrentconcurrent.
Command Line Output:
Debug Log:

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