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program runtime question

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darksideofthemoon101
Hi,
I have a program that (for what I've done so far) takes a long time to run (~4s per loop). In the final version of the code I will be performing hundreds of loops. Would it be quicker if I assigned parts of the code as functions, or would this actually increase the run time?
Thanks
Richard

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Walter Roberson
Walter Roberson 2011-4-6
It is difficult to predict exactly how MATLAB will optimize code. Especially before 2010b, the details how how the code was written in the file could make a substantial difference. This is one of those "You'd have to try it and see" matters.
Have you used the profiler to track down the portion of your code that is taking a lot of time?
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darksideofthemoon101
darksideofthemoon101 2011-4-6
No, I might try this. Thanks Walter (and everyone else on here), you guys are great!

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Jason Ross
Jason Ross 2011-4-6
Have you looked into using functions from the Parallel Computing Toolbox (parfor, spmd, etc)?
Of course, not knowing your problem, you may have conditions that prevent the use of these functions.

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