[kuczmas]

Dear forumers,

I want to compile a code that incorporates omp.h library. This library uses '#pragma' statements in order to inform the compiler about the parallel parts of the code. So the if I compile the file test.cpp using g++ I have to put a flag '-fopenmp':

g++ test.cpp -fopenmp

Is it possible to set the '-fopenmp' flag in wmake? If yes, how to do it?

Any help will be greatly appreciated.

[wyldckat]

Greetings Paweł,

I got the PM you sent me. The quick answer is: have a look into the files located at "wmake/rules/linux*Gcc/c*".
Problem is that editing those files will affect the whole building process. I'll try to have a better look into this during the coming weekend.

Best regards,
Bruno

[wyldckat]

Hi Paweł,

OK, I've finally managed to have a look into this. The files I looked at were:

• "wmake/Makefile"
• "wmake/rules/General/standard"
• "wmake/rules/linux64Gcc/c++"
• Then the "Make/options" and "blockMeshApp.dep" files for the blockMesh application source code.

What I could figure out is that you can edit the file "Make/options" for your application and add this line to the beginning or end of that file:

ptFLAGS += -fopenmp

Best regards,
Bruno

[kuczmas]

Hi Bruno,

tanks a lot for your quick and precise answer. It saved me a lot of time!

My model is added to OF in the form of separate dynamic library - where I would like to include parallel parts of the code. So I think it should be enough to compile only my library with -fopenmp flag and then use it normally inside the OF.

Many thanks!