Undefined reference to `omp_get_max_threads_'

Question

I\'m getting the following errors trying to compile a project: (fortran, using gfortran)

undefined reference to `omp_get_max_threads_\'

undefined

Answer 1

gcc -program.c -o obj -fopenmp

Answer 2

With gcc, you need to compile and link with -fopenmp to enable OpenMP. Other compilers have different options; with intel it's -openmp, with pgi it's -mp, etc.

Answer 3

The code needs to be compiled with -fopenmp.