div (fp32)(@divagr1925):1/4 New writeup: you can fingerprint the exact GPU you're running on with a default torch.index_add_ call, even among identical GPUs. This works because floating-point maths depends on order, and every GPU has its own. This fingerprint survives reboots and can't be faked.

div (fp32)

@divagr1925

mostly into NNs and seeing what else I can stuff into a transformer. occasionally win hackathons. always looking for weird things to work on. DMs open.

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div (fp32)@divagr1925

2026.10.30 18:49

1/4 New writeup: you can fingerprint the exact GPU you're running on with a default torch.index_add_ call, even among identical GPUs. This works because floating-point maths depends on order, and every GPU has its own. This fingerprint survives reboots and can't be faked.