MATLAB doesn't exit, all windows close, but MATLAB.exe persists in Task Manager

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Well, the title says it all. Is this a common problem? What could cause and fix this?
I'm on Win8x64 and I use R2014b. When I quit MATLAB, either by pressing the cross or typing
in the command window, all open MATLAB windows close after a few seconds, but the process remains in the Task Manager. It takes a lot of memory too: the usual amount MATLAB uses (usually over 500MB). When I launch MATLAB again, I get a second MATLAB.exe and the first one remains unchanged. I can kill the process by force closing it in the Task Manager, but I'm not comfortable with doing that often and the extra clicks are just annoying.

Answers (1)

Debarati Banerjee
Debarati Banerjee on 13 Apr 2015
Edited: Debarati Banerjee on 13 Apr 2015
It is a known issue with MATLAB R2014b. As a workaround MATLAB can me made to terminate itself via a call to the operating system. You can place the following lines of code in a script named "finish.m" and place the script on the MATLAB path. The codes should be as follows:
id = feature('getpid');
if ispc
cmd = sprintf('Taskkill /PID %d /F',id);
elseif (ismac || isunix)
cmd = sprintf('kill -9 %d',id);
disp('unknown operating system');
Milo Fryling
Milo Fryling on 1 Feb 2023
It's a showstopper for us in our lab. I isolated a line of code, where MATLAB process hangs around after termination if it is present, and not if it is removed. The author of the code says, " It looks like the issue relates to MEX and/or CUDA. The function you have isolated is the first time MATLAB calls compiled code...My first guess is that we somehow need to close the CUDA context that is created when you run GPU code."
The line of code is:
Yb = cyrebin( Y(:), Y_B, int_params_b, double_params_b, GPU_idx, det_type ); % , proj_time );

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