re: Mandelbrot in Parallel with C++/CLI

Riza Guntur Prakoso — Sun, 24 May 2009 02:04:17 GMT

Hello there, actually I don't really understand about how to implement this OpenMP which from your code under pragma sentence in C++ it much like how CUDA and ATI Brook+ behave.

Yes I've been using Visual C++ to do much of my work lately and I've already seen that OpenMP option in project properties.

Do you know any other sources I can get to study OpenMP?

Including steps to activate it in Visual Studio.

I'm also curious if to activate OpenMP just by "setting the OpenMP Support value to Yes in the property pages for the project under Configuration Properties | C/C++ | Language. Under Configuration Properties | General, you'll also need to set Common Language Runtime support to Common Language Runtime support (/clr).

Now, on a for loop (like the one used to render the image), you can add an OpenMP pragma like:

#pragma omp parallel for

for(int j=0; j<height; j++) { ... }

If it is like that I can try it immidiately.

Thank you for all your answer.

re: Mandelbrot in Parallel with C++/CLI

toub — Sun, 24 May 2009 03:12:58 GMT

You can learn more about OpenMP in Visual C++ at:

http://msdn.microsoft.com/en-us/library/tt15eb9t(VS.80).aspx

http://msdn.microsoft.com/en-us/magazine/cc163717.aspx

re: Mandelbrot in Parallel with C++/CLI

Riza Guntur Prakoso — Sat, 30 May 2009 20:20:58 GMT

Thank you very much, it's a big help since when I try blindly by just adding #pragma omp parallel for all I get just a mighty slowdown