mexw32 sharing violation
in [Matlab]
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From: Norman on 6 May 2008 05:18 Hi! Can matlab be ordered to release file handles of once uses mexw32 files automatically after using them? I use process models for calculations and to improve the calculation speed I want to use c-files and two CPU cores (with two matlabs running at the same time). Say I used models 1 to 5 (and in doing so the mex-files for these models were needed), then I go on with models 6+. Now I want to re-compile models 1-5 with the new informations I got with the second matlab. But all I get is a sharing violations since the first matlab has not closed the file handles. Matlab commands: > mex -inline -O -output mex_timeupdate_Modell_51_VPAR (...) cannot open output file mex_timeupdate_Modell_51_VPAR.mexw32: C:\PROGRA~1\MATLAB\R2007B\BIN\MEX.PL: Error: Link of 'mex_timeupdate_Modell_51_VPAR.mexw32' failed. I used a file monitor programm to see what's the real cause of this error. And it's the attempt of lcclnk.exe to create the mentioned file, resulting in a SHARING VIOLATION. Any idea how to close such file handles (but not manually)?
From: Steven Lord on 6 May 2008 09:38 "Norman " <norman.nospam.violet(a)tu-berlin.de> wrote in message news:fvp7oc$rll$1(a)fred.mathworks.com... > Hi! > > Can matlab be ordered to release file handles of once uses > mexw32 files automatically after using them? > > I use process models for calculations and to improve the > calculation speed I want to use c-files and two CPU cores > (with two matlabs running at the same time). Say I used > models 1 to 5 (and in doing so the mex-files for these > models were needed), then I go on with models 6+. Now I want > to re-compile models 1-5 with the new informations I got > with the second matlab. But all I get is a sharing > violations since the first matlab has not closed the file > handles. Try to use the CLEAR function with the name of the MEX-file to clear the MEX-file from memory, or use "clear functions" to clear all M-file functions and MEX-functions from memory. http://www.mathworks.com/access/helpdesk/help/techdoc/ref/clear.html -- Steve Lord slord(a)mathworks.com
From: Norman on 6 May 2008 10:16
> Try to use the CLEAR function with the name of the MEX-file to clear the > MEX-file from memory, or use "clear functions" to clear all M-file functions > and MEX-functions from memory. Thank you very much! For example .. "clear mex_timeupdate_Modell_1.mexw32" did the job. Thanks again! Norman |