Error when using parallel computing toolbox

Question

Florian 2023-7-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1995153-error-when-using-parallel-computing-toolbox

评论： Farhad 2023-10-6

Hi,

I am running matlab on a Linux cluster, unsing the parallel computing toolbox. While everything worked out so far, suddenly when I ran my code I get the following error:

Parallel pool failed to start with the following error. For more detailed information, validate the profile 'Processes' in the Cluster Profile Manager.

Error in samplescript_expdata (line 278)

parpool(8)

Caused by:

Error using parallel.internal.pool.SpfClientSession

An unexpected error occurred accessing a parallel pool. The underlying error was: Timeout binding/connecting to specified endpoints.

Thus I went to the cluster profile manager and ran the validation process. However, the last step fails as well reporting the following lengthy error message that I am going to paste below.

Does anyone have any idea what's wrong and how I can fix this?

Thank you in advance for your help!

Stage started at 2:20:01 PM. Completed in 0 min 30 sec.

Error Report: An unexpected error occurred accessing a parallel pool. The underlying error was: Timeout binding/connecting to specified endpoints.

Debug Log: CLIENT LOG OUTPUT

Session starting on cluster type: Local, with name: Processes

Session failed to start when creating InteractiveClient. Error: Error using parallel.internal.pool.SpfClientSession

An unexpected error occurred accessing a parallel pool. The underlying error was: Timeout binding/connecting to specified endpoints.

Error in parallel.internal.pool.CppBackedSession.buildInteractiveClient (line 397)

clientSession = parallel.internal.pool.SpfClientSession(bindEndpoint, ...

Error in parallel.internal.pool.AbstractClusterPool>@(c)parallel.internal.pool.CppBackedSession.buildInteractiveClient(c,sessionInfo) (line 839)

sessionBuildFcn = @(c) parallel.internal.pool.CppBackedSession.buildInteractiveClient(c, sessionInfo);

Error in parallel.internal.pool.AbstractInteractiveClient/start (line 100)

[session, connFcn] = sessionBuildFcn(clus);

Error in parallel.internal.pool.AbstractClusterPool>iStartClient (line 874)

spmdInitialized = client.start(sessionBuildFcn, sessionInfo, numWorkers, cluster, ...

Error in parallel.internal.pool.AbstractClusterPool.hBuildPool (line 636)

iStartClient(client, sessionInfo, forceSpmdEnabled, cluster, supportRestart, argsList);

Error in parallel.internal.types.ValidationStages>iOpenPoolForCluster (line 510)

aPool = parallel.internal.pool.AbstractClusterPool.hBuildPool('Cluster', cluster, ...

Error in parallel.internal.types.ValidationStages>@()iOpenPoolForCluster(runInfo)

Error in parallel.internal.types.ValidationStages>iCallWithNoHotlinks (line 391)

[varargout{1:nargout}] = fcn();

Error in parallel.internal.types.ValidationStages>iRunParpoolStage (line 302)

[commandWindowOutput, aPool] = evalc(iWrapForEvalc(openPoolFcn));

Error in parallel.internal.types.ValidationStages/run (line 74)

[eventData, runInfo] = obj.RunFunction(obj, runInfo);

Error in parallel.internal.validator.Validator/runValidationSuite (line 191)

[eventData, stageRunInfo] = currentStage.run(stageRunInfo);

Error in parallel.internal.validator.Validator/validate (line 103)

status = obj.runValidationSuite(profileName, suite);

Error in parallel.internal.ui.AbstractValidationManager/validate (line 36)

obj.Validator.validate(profileName, validationSuite);

Error in parallel.internal.ui.ValidationManager.validateProfile (line 36)

parallel.internal.ui.ValidationManager.getOrCreateInstance().validate(profileName, suite);

Session failed to start with message: Error using parallel.internal.pool.SpfClientSession