uniquetol give an "Unknown option specified" error when I run it on a cluster

I have code that I'm trying to run on a cluster. I've tested my code on a local host and it works fine, but if I run it on my cluster the MATLAB built-in function `uniquetol` errors out.

I call my function with the following script:

%% submit_script.m
cluster = parcluster('MyGenericClusterProfile') % NOTE: if I change the cluster profile to 'local' I don't have any errors
job = createCommunicatingJob(cluster);
job.numWorkersRange=[1 1]; % Trying to get it to work on a single node before I scale up and add communications functionality
createTask(job,@myFunction,0,{},'CaptureDiary',true);
submit(job);

%% myFunction.m
function myFunction()
    % Lots of code building and setting up arrays, some of which are
    % gpuArrays but none of the ones in uniquetol are gpuArrays
    class(A) % returns 'double' in Task1.diary.txt
    [C,IA,IC]=uniquetol(A,1e-4,'highest'); % According to Task1.out.mat, generates a MATLAB:uniquetol:UnknowOptions ParallelException when run on cluster
end

If I comment out the 'highest' option of uniquetol while running on the cluster, my code runs without Exceptions but I need that option to get the correct run-time results. Why does my code behave differently depending on where I run it, and how do I make it behave correctly?

Answer 1

[Walter Roberson]

That option is new as of R2021b, the release after your cluster has.

[Raymond Norris]

A couple of comments

• There's a typo in your example

;CaptureDiary'

should be

'CaptureDiary'

• @Walter Roberson is probably right, I'm just puzzled how @Frank Moore-Clingenpeel is running R2021b locally (where it works), but then R2021a on the cluster, since MATLAB should have thrown a version mismatch. Unless the client is running R2021a on the cluster as well, but Frank didn't run the code locally on the cluster.

[Frank Moore-Clingenpeel]

Fixed the typo, for posterity.

Yeah, this is the issue. My development machine and the machine submitting the job are different, due to firewall reasons. I copy my code over to a login node and submit from there. I was certain the local development machine was R2021a but further investigation shows that it's actually R2021b.