SSH and MEX: Assertion default???!!

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Mett
Mett 2011-11-19
Hello everybody, I'm working with Matlab 2011a on linux 64bit, I got an assertion error calling a mex function, a system() method, another time the mex and then the system(), as following:
Init = ElaborateModelRFAll(I, 50); %function which contains a calling to a mex
disp('first');
system('ssh jotunn "qsub cluprocess_RF.sh"');
disp('second');
Init = ElaborateModelRFAll(I, 50); %function which contains a calling to a mex
disp('third');
system('ssh jotunn "qsub cluprocess_RF.sh"');
disp('fourth');
the result is till the third text displayed, then it crashes (assertion fault) when it calls the second time the system()... Why? It's because I called the second MEX!! Can anybody give to me a reasonable answer of this unbelievable behavior???!! Thanks, Matt

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回答（1 个）

Walter Roberson
Walter Roberson 2011-11-19
The usual reason for something like this is that there is a bug in the mex file that is corrupting MATLAB's internal memory in such a way that the corruption happens to be critical the next time system() is called.
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Kaustubha Govind
Kaustubha Govind 2011-11-21
Mett: If you have access to the source code, I would recommend debugging it to find the cause of the SegV (http://www.mathworks.com/help/techdoc/matlab_external/f32489.html). If you don't have the source code, you should contact the vendor.

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