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### Your current environment
The output of `python collect_env.py`
```text
(xinf) root@DESKTOP-ESRGKIB:~/vllm# python3 collect_env.py
Collecting environment information...
PyTorch version: 2…
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### 🐛 Describe the bug
Original discussion: https://github.com/pytorch/pytorch/pull/126635
I found some inputs that cause massive ( > 25 max abs err) for channels last (CL) GroupNorm (GN) when run…
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[model_input.txt](https://github.com/user-attachments/files/17492230/model_input.txt)
### Your current environment
The output of `python collect_env.py`
```text
Collecting environment inform…
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### 🐛 Describe the bug
When training a large model on H100s, we are seeing an illegal memory access error when using AdamW `fused=True`. I suspect the root cause may be related to https://github.co…
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### Your current environment
```text
Collecting environment information...
PyTorch version: 2.4.0+cu121
Is debug build: False
CUDA used to build PyTorch: 12.1
ROCM used to build PyTorch: N/A
…
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When doing a pip install on python 3.9, 3.10, 3.11 on my older Intel CPU when I do `import lancedb` python dumps core with an `illegal instruction` error.
This is on ubuntu 20.04.
```
$uname -a…
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### 🐛 Describe the bug
Code to reproduce:
```python
import torch
device = torch.device('cpu')
dtype = torch.bfloat16
n = 512
x = torch.tensor([0, 1], dtype=dtype, device=device).repeat(…
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### 🐛 Describe the bug
There is a popular method of getting compiled graphs using a custom backend.
E.g.
```
def my_backend(gm: torch.fx.GraphModule, example_inputs: List[torch.Tensor]):
…
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### Your current environment
Using container image `vllm/vllm-openai:v0.4.0`
```text
Collecting environment information...
PyTorch version: 2.1.2+cu121
Is debug build: False
CUDA used to build…
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### 🐛 Describe the bug
There appears to be an instance of `torch._inductor.ir.ExternKernel` that has a cycle in its data members that is causing an infinite loop in the `__str__` method.
torch/_…