🐛 Bug

I'm seeing a lot of warning: ignoring #pragma omp parallel like this:

Maybe there should be a -fopenmp?

Environment

• PyTorch / torchvision Version (e.g., 1.0 / 0.4.0): master/master
• OS (e.g., Linux): Ubuntu 18.04
• How you installed PyTorch / torchvision (conda, pip, source): source
• Build command you used (if compiling from source): cmake+ninja+gcc-8
• Python version: 3.6
• CUDA/cuDNN version: 11.0/8