Is it possible to run two different versions of MATLAB Parallel Server and MJS on the same machine at the same time?

I would like to run two different versions of MATLAB Parallel Server on the same machine, at the same time. I have a license for MATLAB Parallel Server R2009b and R2010b. I am able to start one, but when I try to start the other I get the error:

ERROR: wrapper  | CreateService failed - The specified service already exists. (0x431)
Script mdce unable to complete successfully - exiting

Is it possible to run two different versions of MATLAB Parallel Server, on the same machine, at the same time? If not, how can I serve R2009b and R2010b clients on the same machine?

Answer 1

[MathWorks Support Team]

You cannot run two MJS (MATLAB Job Scheduler) services of different versions on the same machine.

From R2016a onwards we support the newest installed version of MATLAB Parallel Server running a service that is aware of older installed versions of MATLAB Parallel Server and can dynamically start the relevant version needed when jobs are submitted to the MATLAB Job Scheduler. This is noted as backwards compatibility in the documentation:

https://www.mathworks.com/help/matlab-parallel-server/configure-advanced-options-for-matlab-job-scheduler-integration.html#mw_178b475c-781c-42f1-9f08-1846f694593e

For older releases, it is possible to have a third-party scheduler serve multiple installations of MATLAB Parallel Server. The integration of MATLAB with the third-party scheduler will ensure that the version of MATLAB started on the cluster will be the same version as that used to submit the job.