Parallel Computing Toolbox™

ErrorMessage - Message from task error

Description

ErrorMessage contains the message output from execution of the lasterror command if an error occurs during the task evaluation, or a message indicating that the task did not complete.

Characteristics

Values

ErrorMessage is empty before an attempt to run a task, and remains empty if the evaluation of a task object's function does not produce an error or if the error did not provide an message. If a task completes, ErrorMessage has the same value as the message field of the Error property. If a task does not complete because of cancellation or a worker crash, ErrorMessage is set to indicate that fact, and the Error property is left empty.

Examples

Retrieve the error message from a task object.

jm = findResource('scheduler','type','jobmanager', ...
          'name','MyJobManager','LookupURL','JobMgrHost');
j = createJob(jm);
a = [1 2 3 4]; %Note: matrix not square
t = createTask(j, @inv, 1, {a});
submit(j)
get(t,'ErrorMessage')
ans =
Error using ==> inv
Matrix must be square.

See Also

Properties

Error, ErrorIdentifier, Function

ErrorIdentifier

FileDependencies