Hi!

I'm looking for a C# library for matrix operations and preferably some linear algebra or optimization routines. Basically a NumPy/SciPy or PyTorch.

Ideally there'd be support for various backends (e.g. CPU, CUDA, OpenCL) for operations where possible.

As far as I can tell, there's Math.NET Numerics, Numpy.NET (which binds to Python's numpy), and NumSharp (which hasn't had commits since 2021), which seem to fit the bill mostly, though none are accelerated.

Otherwise, there are some libraries I've forgotten that seem to specifically target CUDA, which is too selective for my purpose. Maybe it was Hybridizer, which seems like its own compiler, which I'm not sure would work for me either.

There's also ComputeSharp which lets you write shaders directly in C#, though targets DirectX if I understand well.

The closest thing I've found is ILGPU, which seems brilliant since it JIT compiles kernels to CPU, CUDA, and OpenCL. The problem is I believe I'd need to write my own operations and kernels and essentially implement my own matrix compute library, though there seems to be some work on it, so maybe what I'm looking for is supported out of the box, minus optimization algorithms and so on.

Basically, does anyone have any pointers?

Hopefully this one makes it through. I've been desperately trying to post to a community on this instance. A spinner appears, and then nothing for a half hour. I tried again, same thing.

Anyone know what's up?

Title suffices I think. Have other people noticed this? I've tried poking around for other threads a bit.

What could be causing this?

Shamelessly cross-posted from https://lemmy.world/post/390718 since I was looking for a procedural generation community and didn't find one!

This was something I was toying around with in Godot 3.4 some time back. It uses shaders for generation from simple noise + thresholds.

I was wondering what people have been doing to share videos! It doesn't seem like uploading locally to the instance is currently an option, right?

Just a random thought experiment. Let's say I have my account on a lemmy instance: userA@mylemmy.com. One day I decide to stop paying for the domain and move to userA@mynewlemmy.com, and someone else gains it and also starts up a lemmy instance.

If they make their own userA@mylemmy.com, how do federated instances distinguish who's who?

Have I misunderstood the role of domain names in this?