openMP not working

[A-Man]

The compiler is not finding the library containing the definitions of these methods to link against. You need to use "-fopenmp" as a linker option for the functions you mentioned to work. On code::blocks, go settings->compiler settings->linker settings tab->append "-fopenmp" to what's in the "other linker options" box.

If that doesn't work, it would help if you'd show the command you attempted to compile your program with.