Wheel compilation hangs

[KLL535]

Help me! I don't understand what the problem is. Everything hangs on these lines.

flash_bwd_hdim128_bf16_sm80.cu - why is it called 6 times?

Then it sometimes writes a bunch of text, but without an error, and then everything repeats itself with the same files again! In general, I never waited for the completion. What could I have broken? RAM in 25%

  "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.8\bin\nvcc" -c csrc/flash_attn/src/flash_bwd_hdim128_bf16_sm80.cu -o build\temp.win-amd64-cpython-313\Release\csrc\flash_attn\src\flash_bwd_hdim128_bf16_sm80.obj -IC:\Users\AnY\AppData\Local\Temp\pip-install-dvudl9jd\flash-attn_2aa6bf2d947f445b8003738b86ba85f2\csrc\flash_attn -IC:\Users\AnY\AppData\Local\Temp\pip-install-dvudl9jd\flash-attn_2aa6bf2d947f445b8003738b86ba85f2\csrc\flash_attn\src -IC:\Users\AnY\AppData\Local\Temp\pip-install-dvudl9jd\flash-attn_2aa6bf2d947f445b8003738b86ba85f2\csrc\cutlass\include -IH:\ComfyUI128\python_embeded\Lib\site-packages\torch\include -IH:\ComfyUI128\python_embeded\Lib\site-packages\torch\include\torch\csrc\api\include "-IC:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.8\include" -IH:\ComfyUI128\python_embeded\include -IH:\ComfyUI128\python_embeded\Include "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\ATLMFC\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.20348.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\ATLMFC\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.20348.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.20348.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\include" -Xcudafe --diag_suppress=dll_interface_conflict_dllexport_assumed -Xcudafe --diag_suppress=dll_interface_conflict_none_assumed -Xcudafe --diag_suppress=field_without_dll_interface -Xcudafe --diag_suppress=base_class_has_different_dll_interface -Xcompiler /EHsc -Xcompiler /wd4068 -Xcompiler /wd4067 -Xcompiler /wd4624 -Xcompiler /wd4190 -Xcompiler /wd4018 -Xcompiler /wd4275 -Xcompiler /wd4267 -Xcompiler /wd4244 -Xcompiler /wd4251 -Xcompiler /wd4819 -Xcompiler /MD -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_BFLOAT16_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr -O3 -std=c++17 -U__CUDA_NO_HALF_OPERATORS__ -U__CUDA_NO_HALF_CONVERSIONS__ -U__CUDA_NO_HALF2_OPERATORS__ -U__CUDA_NO_BFLOAT16_CONVERSIONS__ --expt-relaxed-constexpr --expt-extended-lambda --use_fast_math -gencode arch=compute_80,code=sm_80 -gencode arch=compute_90,code=sm_90 -gencode arch=compute_100,code=sm_100 -gencode arch=compute_120,code=sm_120 --threads 2 -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=flash_attn_2_cuda -D_GLIBCXX_USE_CXX11_ABI=0 -std=c++17 --use-local-env
  flash_bwd_hdim128_bf16_sm80.cu
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_BFLOAT16_CONVERSIONS__' with '/U__CUDA_NO_BFLOAT16_CONVERSIONS__'
  flash_bwd_hdim128_bf16_sm80.cu
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_BFLOAT16_CONVERSIONS__' with '/U__CUDA_NO_BFLOAT16_CONVERSIONS__'
  flash_bwd_hdim128_bf16_sm80.cu
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_BFLOAT16_CONVERSIONS__' with '/U__CUDA_NO_BFLOAT16_CONVERSIONS__'
  flash_bwd_hdim128_bf16_sm80.cu
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_BFLOAT16_CONVERSIONS__' with '/U__CUDA_NO_BFLOAT16_CONVERSIONS__'
  flash_bwd_hdim128_bf16_sm80.cu
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
  cl : Command line warning D9025 : overriding '/D__CUDA_NO_BFLOAT16_CONVERSIONS__' with '/U__CUDA_NO_BFLOAT16_CONVERSIONS__'
  flash_bwd_hdim128_bf16_sm80.cu

I looked at how many such files there are, there are about a hundred of them. At this speed, it would take me a week to compile.