If gpu computing or convert to mex file help to accelerate the code

Attached is the profiling results of my code, where the most time-consuming lines are those from build-in functions(e.g., find, max, min,...). As my code cannot be vectorized or run in parallel, I am wondering how to speed up the code? If gpu computing or convert to mex file help for this case?

Thank you very much.

Answer 1

[Joss Knight]

It doesn't look as though the problem is the speed of execution of those functions, so much as the number of times they are called. You should have a go at removing your loops by vectorizing your code.

[Chaoyang Jiang]

Thanks a lot for your answer!