niklas-pihl: Implemented CUDA matrix multiplication#11
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Implemented both naive and tiled multiplication.
The measured results are not the best. Had some problems due to the lack of an NVIDIA GPU, so I had to run the code in Google Colab which skewed the measurements somewhat and I couldn't even get measurable results on many runs. I suspect the tiled multiplication was too fast, because most of the runs just showed 0 seconds even with precision set to 20. This led to some funny results, comparing colabs speed to the speed of my own CPU (Parallel CPU).