Mex file is faster when it is called from command but slower when it is called inside a code!!!
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Hi everyone,
I am working on an optimization problem which needs to run my model several times and test for different constraints and cost. For this reason I need a model which can be simulated quickly. The solution which I found is to convert the model to a mex file. I have converted a part of the model to mex file... Now when I run this part alone to check if it is faster than m file, I observe that it is faster about 4 times. However, when I plug this mex file to the rest of the model, the result becomes slower....
Does any of you have an idea what can be a possible reason? Thanks in advanced, Reza
1 个评论
Jan
2012-12-8
How did you measure the timings? I do not think that anybody can guess the reasons without seeing the code.
回答（1 个）
Walter Roberson
2012-12-8
0 个投票
If you have a "clear all" call, get rid of it.
4 个评论
Aragorn_
2012-12-8
Walter Roberson
2012-12-8
Is this Simulink or MATLAB directly?
Aragorn_
2012-12-8
Walter Roberson
2012-12-8
Could you profile the code to determine where it is spending its time?
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