how to kill a process from Matlab
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Hello,
I need to unload Ansys's HFSS from memory from Matlab.
I am able to close the project file using
invoke(oDesktop,'Closeproject',project_full_pathname');
to close the application (HFSS) I am trying
status=dos('taskill /F IM ansysedt.exe');
I am using Ansys HFSS 2021R2 and Matlab
the command is simply ignored. No error but also no execution
Any ideas?
Thanks
댓글 수: 4
Jan
2021년 10월 11일
편집: Jan
2021년 10월 11일
"it says it couldn't find the process" - please post a copy of the message, not a rough paraphrasation. I have suggested two methods. To which one does the description "couldn't find process" belong?
How do you start the process?
I assume, this is still a communication problem. Some important details are missing, so please try to explain what you do as exact as possible.
Sander
2021년 10월 15일
For this specific HFSS case, an easier solution than the current accepted answer might be to use the QuitApplication function in the oDesktop object.
invoke(oDesktop,'QuitApplication');
채택된 답변
Bruno Luong
2021년 10월 11일
편집: Bruno Luong
2021년 10월 12일
I don't know if it is matter but I always use PID to kill a process, not directly the image name. Here is my code
function KillSrvProcess(PrgName)
% KillSrvProcess(PrgName)
% Kill a process of program PrgName
% INPUT:
% PrgName is a char array, the name of the program to be killed
if nargin < 1
PrgName = 'LSAlgoSrv';
end
if ~contains(PrgName, '.exe','IgnoreCase', true)
PrgName = sprintf('%s.exe', PrgName);
end
Mypid = GetCurrentProcessId();
fprintf('Current pid == %d\n', Mypid);
ntries = 30;
for n = 1:ntries
cmd = sprintf('TaskList -fi "ImageName eq %s"', PrgName);
[status, out] = system(cmd);
if status > 0
warndlg('Need administrator privilege?', 'KillSrvProcess');
return
end
lines = strsplit(out,newline());
idxc = regexp(lines, ['^' PrgName], 'start', 'once');
keep = ~cellfun('isempty', idxc);
lines = lines(keep);
pidstr = regexp(lines, sprintf('%s\\s+([0-9]+)', PrgName), 'tokens', 'once');
pid = cellfun(@str2double, pidstr);
% Remove the Current Process ID
pid(pid == Mypid) = [];
if isempty(pid)
break
end
for k = 1:length(pid)
% 'cmd /C ...' To set credentials for taskkill to require admin privileges
cmd = sprintf('cmd /C taskkill /f /pid %d', pid(k));
status = system(cmd);
if status > 0
warndlg('Need administrator privilege?', 'KillSrvProcess');
return
end
end
pause(1);
end
end % KillSrvProcess
You migh comment the lines GetCurrentProcessId() and call
KillSrvProcess('ansysedt')
This is the GetCurrentProcessId() mex file
// mex -O GetCurrentProcessId.c
#include <string.h>
#include "mex.h"
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
plhs[0] = mxCreateDoubleScalar(GetCurrentProcessId());
}
댓글 수: 2
Image Analyst
2021년 10월 11일
@NAFTALI HERSCOVICI, so I assume you've tried it by now, so did it work?
추가 답변 (4개)
Image Analyst
2021년 10월 10일
I'm not sure there is a taskill (with a single "k"). You should try taskkill instead. Here's an example to forcibly shut down Excel
system('taskkill /F /IM EXCEL.EXE');
댓글 수: 2
Image Analyst
2021년 10월 10일
편집: Image Analyst
2021년 10월 10일
What processes do you see if you type Control-shift-Esc?
Attach a screenshot of the window showing as many processes as will fit.
NAFTALI HERSCOVICI
2021년 10월 10일
댓글 수: 1
Image Analyst
2021년 10월 10일
편집: Image Analyst
2021년 10월 10일
What is that? Do you care to explain at all?
You said you tried
system('taskkill /F /IM ansysedt.EXE'); % With 2 "k"s this time.
and it didn't work
NAFTALI HERSCOVICI
2021년 10월 10일
댓글 수: 23
Bruno Luong
2021년 10월 11일
편집: Bruno Luong
2021년 10월 11일
Normally the option "/f" of taskkill would force the process to be killed even it is not in iddle state (busy doing something else).
Image Analyst
2021년 10월 11일
Yeah, you'd think. So I'm not 100% trusting she's doing it the right way. @NAFTALI HERSCOVICI, can you run Windows's PSR (type it in after you hit the start button) and record your screenshots as you try to kill this process from MATLAB? Then save the recording (it will go into a zip file) and attach the zip file here with the paperclip icon so we can see exactly what you're doing?
kunal gokhe
2021년 10월 15일
Use Ctrl+C to kill Porcess.
댓글 수: 2
Image Analyst
2021년 10월 15일
That will only kill the current MATLAB script running. It won't kill a totally different program such as ansysedt.exe or Excel or Word or any other program. It doesn't even kill MATLAB.
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