https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98258
--- Comment #4 from Chinoune <mehdi.chinoune at hotmail dot com> --- gfortran -O3 -fopenmp -fopenacc -foffload=disable bug_omp_acc.f90 -o test.x ./test.x 2048 dim1 = dim2 = 2048 CPU Time = 4.99999989E-03 libgomp: target function wasn't mapped gfortran -O3 -fopenacc -foffload=disable bug_omp_acc.f90 -o test.x ./test.x 2048 dim1 = dim2 = 2048 CPU Time = 1.90100002 libgomp: target function wasn't mapped gfortran -O3 -fopenmp -foffload=disable bug_omp_acc.f90 -o test.x ./test.x 2048 dim1 = dim2 = 2048 CPU Time = 6.00000005E-03 GPU Time = 1.44500005 Max(|C2-C1|) = 559.285156