Problemsby IbisTrouble with PyTorch inputs
MLOps2 posts from 2 people2d active+11 post in the last 7 days, 1 the 7 days before (steady)Unverified
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2, newest first[MPS] integer torch.bincount is ~1000x slower when most inputs fall in one bin## 🐛 Describe the bug On MPS, integer `torch.bincount` gets ~1000x slower as more inputs land in the same bin. The weighted path and `torch.unique(return_counts=True)` give the same counts in ~1 ms. 1M int64 inputs, 630 bins, Apple M3 Max: | fraction of inputs in bin 0 |...pytorch/pytorch · ArthurZucker3 repliesOpen ↗torch.compile: complex sgn decomposition overflows on tiny inputs which causes NaN gradients in abs backward...in eager mode but gets intermittent NaN gradients under `torch.compile`. I traced the failing `abs` backward to a single STFT residual element of magnitude 1.4e-45 and the repro below shows the same failure without the model. I made an experiment of two runs with that model by...pytorch/pytorch · Shakil-MuhitOpen ↗
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About this problem
Evidence
2 posts from 2 people in 1 place, about 2 a week over 6 days. Mostly on pytorch/pytorch. Tools named alongside: NVIDIA.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts about PyTorch with no known issue, sharing the word "inputs". First post Oct 10, 2026, latest Oct 15, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
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Trouble with PyTorch inputs (1 post)