Do i need to modify my program to use it in compiler?

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subha 2014-6-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/135293-do-i-need-to-modify-my-program-to-use-it-in-compiler

编辑： José-Luis 2014-6-19

I have implemented a program in Matlab.It is too slow. To improve the speed, i would like to use Matlab compiler. As per the videos added in Mathworks, i created standalone app for matlab. when i run it outside matlab, it shows me message as below.

error invalid file identifier. Use fopen to generate valid file identifier. error in line 6

This is my main file.

clear all

close all

maxepoch=50;

numhid=500;

fprintf(1,'Converting Raw files into Matlab format \n');

converter;

makebatches2;

[numcases numdims numbatches]=size(batchdata);

%N=numcases;

restart=1;

gdrbmcd2;

As per my understanding, i need to rewrite the main file. For ex: converter is a subfile of my program.So, i need to use fopen to open that file during compilation. Is that right?

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José-Luis 2014-6-18

编辑：José-Luis 2014-6-19

Why do you say it is too slow? The compiler might not be the solution. Why do you want to do it this way?

Are you sure you are not confusing Matlab compiler with Matlab coder? Maybe a mex file is what you need instead?

subha 2014-6-19

编辑：subha 2014-6-19

Thanks for your suggestion. what is mex file.

To run this model, it approximately takes more than 8 hour.Someone suggested me to use compiler. I am new to matlab. When i search about matlab compiler, i come to know matlab is for standalone applications not for speed. But i want to know to use compiler.

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Answer 1

Image Analyst 2014-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/135293-do-i-need-to-modify-my-program-to-use-it-in-compiler#answer_141611

I know you read the post by the Mathworks that says that compiling your app won't speed it up because you posted an "Answer" to it. http://www.mathworks.com/matlabcentral/answers/94695-does-the-matlab-compiler-speed-up-the-execution-time-of-matlab-functions

So I don't know why you have asked this question.

In most (or all?) cases, you compile the code to provide it to people who have computers without the MATLAB development installed - not to speed up your m-file.

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Image Analyst 2014-6-19

在 MATLAB Online 中打开

1 is the standard output so it should have been okay. But it's actually not needed. Just use fprintf() this way:

fprintf('Converting Raw files into Matlab format \n');

Image Analyst 2014-6-19

By the way, it doesn't look like batchdata is in scope so your size function will also bomb.

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Do i need to modify my program to use it in compiler?

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