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auto generated invalid variable names

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Alexander
Alexander on 4 May 2019
Commented: Alexander on 8 May 2019
As stated here:
I get an error
Error using opt705 (line 86)
Invalid variable name "_symans_[[32, 0, 7034898]]" in ASSIGNIN.
Error in run (line 91)
evalin('caller', strcat(script, ';'));
During a script run.
The according main script opt705.m and related functions are attached.
I assume, the error has a random nature, so I don't know how to reproduce it directly. However, I have saved data files until the crash, so it would be helpful, I could post the matfiles generated by the script so far (until it crashed).

  13 Comments

Jan
Jan on 8 May 2019
@Alexander: Running a script inside the workspace of the caller is ugly. I do not know, if this must necessarily cause the observed problem, but especially if running in parallel, the computing is more fragile.
The error message is strange:
Error using opt705 (line 86)
Invalid variable name "_symans_[[32, 0, 7034898]]" in ASSIGNIN.
Line 86 in opt705 is:
parfor i = 1:length(x)
I do not see, how this line can cause this error.
Alexander
Alexander on 8 May 2019
yeah... I don't see any reason too, why the line should cause any problems. This is why I posted the problem here :)
Another problem occures, which states
*** Error in `/opt/R2018b/toolbox/symbolic/mupad/../../../bin/glnxa64/mupkern': malloc(): smallbin double linked list corrupted: 0x000000000b731180 ***
This is why my current assumption is, that I have to tweak my ulimits. However, the script is running since two days now (even after the message about malloc), and I need my results more, that a stable script. So, if it crushes again, my next try will be to experiment with ulimits, if not, the problem will become minor in my eyes anyway.
Anyway, thanks @all for have a look into the problem...

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