How many matlab licenses can be used on the same workstation?

Hi, we have an HPC system, which has two GPUs. Currently there is only a profile who is enabled for using MATLAB (ver. 2014a), but we need to create a new one for another user. We bought a new license for MATLAB 2014b, therefore our IT specialist would like to know if we can install the 2014b version on the same machine and if the two versions can generate problems. Regards Giovanni

Answer 1

[Walter Roberson]

You can have any number of MATLAB versions installed on the same machine.

However, if you are using MS Windows then only one version can be configured system-wide as the default version to use when you double click on an associated file (such as a .m or .fig file) to open it from the browser, if I understand properly. You run into similar situations for OS-X and Linux but those operating systems allow the associations to be configured per-user.

Also in MS Windows the version that you get when you use MATLAB as a COM server is controlled by the registry.

To configure one version of MATLAB as the version to start up upon double-clicks, and the version to be used by COM, start MATLAB with the -regserver flag; see http://www.mathworks.com/help/matlab/ref/matlabwindows.html

A note in that regards is that the R2014b license also authorizes the person to use all previous releases of that product, so the person with the R2014b license can use the R2014a executables.