When using Matlab engine and calling from multiple ranks, does each rank use one Matlab license?

2 次查看（过去 30 天）
Dan Houck
Dan Houck 2024-6-26
评论： Divyanshu 2024-7-3
I'm trying to write a python code that will call a Matlab function compiled for python. I need to know if, when running this code using multiple MPI processes, will each need one instance of Matlab? Will this be a potential bottleneck in opening multiple instances of Matlab?

请先登录，再回答此问题。

采纳的回答

Divyanshu
Divyanshu 2024-7-1
Hi Dan,
As per my understanding you are trying to call MATLAB functions from Python Code. If you are running the Python code from multiple processes and are trying to connect each Python session with an instance of MATLAB, it is possible to do so.
Please refer the following documentation link for more details on 'How to connect Python to a Running MATLAB session on your local machince':
https://www.mathworks.com/help/matlab/matlab_external/connect-python-to-running-matlab-session.html
You may replicate the steps specified in the above documentation to multiple Python sessions.
Hope it helps!
  2 个评论
Dan Houck
Dan Houck 2024-7-1
I think this partially answers the question. I work at a large institution and I don't know the specifics of our licensing arrangement. I'm worried that we could hit a license limit if each instance of Matlab requires one license. Does anyone know if that's the case or not? As a related question, can anyone speculate on how slow it will be to have to open an instance of Matlab each time the Matlab function compiled for python is called?
Divyanshu
Divyanshu 2024-7-3
Hi, I don't think you will hit any such license limit because running Multiple sessions/instances of MATLAB on same machine under the same user account does not consume multiple licenses.
You can refer the following thread for more details:
https://www.mathworks.com/matlabcentral/answers/2080371-do-multiple-instances-of-matlab-on-the-same-computer-take-up-more-than-one-seat

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Call MATLAB from Python 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by