Why do I receive an "Undefined command/function" message when I execute my function MATLAB file using DFEVAL from Distributed Computed Toolbox 1.0.1 (R14SP2)?

I have an function MATLAB file called myfunc.m stored in a directory that is located on a Windows mapped network drive. To add this directory to my worker's path, I insert the following command in the jobStartup.m file:

addpath('T:\mydir')

Then I use DFEVAL to evaluate my function MATLAB file:

y=dfeval('myfunc',{1},{2},{3},'JobManager','MyJobManager','Filedependencies',{'$MATLAB\toolbox\distcomp\user\jobStartup.m'})

The jobStartup.m file is passed to the worker using the FileDependencies property so that the worker's path is correctly set. However, I receive the following warning and error message when DFEVAL executes:

 Warning: Errors occurred during execution of task 1. Results may be incorrect.

 Error using ==> feval

 Undefined command/function 'myfunc'.

 > In dfevalasync>taskFinish at 170

   In distcomp.task.pDispatchJavaEvent at 22

   In distcomp.objectroot.objectroot>nDispatchJavaEvent at 36

   In distcomp.eventwaiter.waitForEvent at 33

   In distcomp.job.waitForState at 90

   In dfeval at 62

 ??? Error using ==> dfeval

 Requested number of output arguments is greater than the number

 of output arguments returned by the tasks.  Data must be manually

 retrieved from job 6.

I expect the worker to find myfunc.m because I specified the path.

Answer 1

[MathWorks Support Team]

A Distributed Computing worker runs as a service. On Windows, a service does not know about network drive mappings. As a workaround, use UNC paths, e.g., \\mathworks\tempdir instead of T:\mydir in the ADDPATH command.

For example,

addpath('\\mathworks\tempdir')