If you're on Linux/macOS: Terminal

cd /path/to/your/file g++ a.cpp -fopenmp -o a.out ./a.out

sudo apt update sudo apt install g++

window a.exe

4 nvcc main.cu -o matrix_mul ./matrix_mul

nvcc --version

Note: The file should have a .cu extension (not .cpp) for CUDA. So rename it to a.cu if needed: mv a.cpp a.cu