c++ program using too much memory -

i have c++ program makes simulation. simulation large. needs ran several times.

i didn't take account memory management guidelines passing arguments reference functions avoid copies of same data wasting memory, , maybe other techniques don't know about. late redo whole program again (or maybe won't help).

i have program

void main(){  //simulation consuming lot of memory.  }; 

i

void main(){    (int i=0;i<10000;i++){         //simulation consuming lot of memory (depending on i).    }; }; 

but in such way after each loop of for memory used inside released (probably except used program , counter of for).

the memory holds fine 1 repetition of loop not two.

i there way can done?

on unix/linux, create bash shell script call c++ program required number of times, run_my_app.sh following content:

i=0 while (( $i < 10000 ));     ./my_app $i     let i+=1 done 

then make executable chmod +x run_my_app.sh.

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on windows, same cmd.exe "shell", creating run_my_app.bat with:

for /l %i in (0,1,9999) my_app %i 

you can add full path my_app if need to, e.g.: c:\dir1\dir2\my_app instead of my_app. don't need make executable - that's implied .bat extension.

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then modify c++ program follows:

#include <cstdlib>  int main(int argc, const char* argv[]) {     if (argc != 2)     {          std::cerr << "usage: " << argv[0] << " i\n"               "run simulation iteration number <i>.\n";          exit(exit_failure);     }      int = std::atoi(argv[1]);      ...simulation... }