Does Numpy automatically detect and use GPU?

Question

I have a few basic questions about using Numpy with GPU (nvidia GTX 1080 Ti). I'm new to GPU, and would like to make sure I'm properly using the GPU to accelerate Numpy/Python. I searched on the internet for a while, but didn't find a simple tutorial that addressed my questions. I'd appreciate it if someone can give me some pointers:

1) Does Numpy/Python automatically detect the presence of GPU and utilize it to speed up matrix computation (e.g. numpy.multiply, numpy.linalg.inv, ... etc)? Or do I have code in a specific way to exploit the GPU for fast computation?

2) Can someone recommend a good tutorial/introductory material on using Numpy/Python with GPU (nvidia's)?

Thanks a lot!

Answer 1

Does Numpy/Python automatically detect the presence of GPU and utilize it to speed up matrix computation (e.g. numpy.multiply, numpy.linalg.inv, ... etc)?

No.

Or do I have code in a specific way to exploit the GPU for fast computation?

Yes. Search for Numba, CuPy, Theano, PyTorch or PyCUDA for different paradigms for accelerating Python with GPUs.

Answer 2

No, you can also use CuPy which has a similar interface with numpy. https://cupy.chainer.org/