Trouble with PyTorch windows
4 posts from 4 people4d activeSteady, +1 this week
Posts per day
The posts behind it
[Windows] Bundled cuDNN fails on first use since #202206 when no cuDNN is on PATH ("Cannot load symbol cudnnGetVersion")
### 🐛 Describe the bug Since #202206 removed the preload of every DLL in torch\lib, Windows wheels that bundle cuDNN crash on first cuDNN use when no cuDNN is on PATH with error `Invalid handle. Cannot load symbol cudnnGetVersion` and the process exits with `0xC0000409`. This...
Add varlen attention support on Windows
### 🚀 The feature, motivation and pitch I hope Windows can support varlen attention too, that would be really convenient ### Alternatives _No response_ ### Additional context _No response_ cc @peterjc123 @mszhanyi @skyline75489 @nbcsm @iremyux @Blackhex @nkhasbag-nv @drisspg...
PyTorch 2.10.0 CPU Windows wheel: provenance / notices for bundled OpenMP, MSVCP and libuv binaries
### Packaging / redistribution documentation question I am preparing to redistribute the **unmodified official PyTorch 2.10.0+cpu Windows x64 / CPython 3.12 wheel** in a paid, offline-capable Windows application. I understand PyTorch's main BSD-style license and am **not asking...
[PyTorch Nightly] [Windows] [CUDA]: 'fcntl' module is required (but non-existent in Windows)
Trying to use latest Pytorch Nightly in ComfyUI I get this error (relevant portion of the log): My environment: Trying to solve the issue I found out that `fcntl` module doesn't exist in Windows. Using information from this source...
Companies and products named
About this problem
Evidence
4 posts from 4 people in 1 place, about 1 a week over 21 days. Mostly on pytorch/pytorch. Tools named alongside: NVIDIA, GitHub.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts about PyTorch with no known issue, sharing the word "windows". First post Oct 16, 2026, latest Nov 5, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method
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History