Docs: Leveraging the TPU/GPUs available on Colab

[JohnTigue]

On Colab, you have to explicitly request a GPU. As of late 2019, there are three that have been seen recently

• Tesla P100
• Tesla T4
• Tesla K80

The first two work with Rapids, the K80 does not. Let's make sure we have one that works with Rapids.

In the first pass of getting ShuTu working on Colab, there is no focus on the Nvidia T4 GPU that is made freely available on Colab. ShuTu is not written to leverage GPUs, rather it uses multiple CPU cores, of which there is only one on Colab (cue sad trombone).

Nonetheless, the whole imaging pipeline should run on RAPIDs and CUDA etc. Just chuck the image stack onto the GPU and out comes a SWC. Yup, just that simple :)

[JohnTigue]

Nvidia: GPU Accelerated Computing with Python

[JohnTigue]

See #18 for notes on GPUing max intensity projections, which would be trivial.

[JohnTigue]

Speeding up Python is a Colab hosted Jupyter notebook.