Bug | Warning | UserWarning: 1Torch was not compiled with flash attention about comfyui HOT 2 CLOSED

D:\AI\ComfyUI>call conda activate D:\AI\ComfyUI\venv-comfyui
Total VRAM 8188 MB, total RAM 65268 MB
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 4060 Laptop GPU : cudaMallocAsync
VAE dtype: torch.bfloat16
Using pytorch cross attention
****** User settings have been changed to be stored on the server instead of browser storage. ******
****** For multi-user setups add the --multi-user CLI argument to enable multiple user profiles. ******

Import times for custom nodes:
0.0 seconds: D:\AI\ComfyUI\custom_nodes\websocket_image_save.py

Starting server

To see the GUI go to: http://127.0.0.1:8188
got prompt
model_type EPS
Using pytorch attention in VAE
Using pytorch attention in VAE
clip missing: ['clip_l.logit_scale', 'clip_l.transformer.text_projection.weight']
Requested to load SDXLClipModel
Loading 1 new model
D:\AI\ComfyUI\comfy\ldm\modules\attention.py:345: UserWarning: 1Torch was not compiled with flash attention. (Triggered internally at ..\aten\src\ATen\native\transformers\cuda\sdp_utils.cpp:263.)
out = torch.nn.functional.scaled_dot_product_attention(q, k, v, attn_mask=mask, dropout_p=0.0, is_causal=False)
Requested to load SDXL
Loading 1 new model
100%|██████████████████████████████████████████████████████████████████████████████████| 20/20 [00:11<00:00, 1.71it/s]

from comfyui.

Check this:
https://discuss.pytorch.org/t/flash-attention-compilation-warning/196692/12
and this:
pytorch/pytorch#108175

Not supported on Windows.

from comfyui.