OSError: [WinError 126] The specified module could not be found. Error loading "...miniconda3\envs\rapids-25.04\lib\site-packages\intel_extension_for_pytorch\bin\intel-ext-pt-gpu-bitsandbytes.dll" or one of its dependencies.

[krembuk]

Describe the issue

why am i getting this:

C:\users\me\Documents\01. Stock\script\experimental>python -c "import torch; import intel_extension_for_pytorch as ipex; print(torch.version); print(ipex.version); [print(f'[{i}]: {torch.xpu.get_device_properties(i)}') for i in range(torch.xpu.device_count())];"
Traceback (most recent call last):
File "", line 1, in
File "C:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages\intel_extension_for_pytorch_init_.py", line 118, in
raise err
OSError: [WinError 126] The specified module could not be found. Error loading "C:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages\intel_extension_for_pytorch\bin\intel-ext-pt-gpu-bitsandbytes.dll" or one of its dependencies.

when my installation seems successful:

pip install intel_extension_for_pytorch

Requirement already satisfied: intel_extension_for_pytorch in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (2.7.10+xpu)
Requirement already satisfied: psutil in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (7.0.0)
Requirement already satisfied: numpy in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (2.2.5)
Requirement already satisfied: packaging in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (25.0)
Requirement already satisfied: ruamel.yaml in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (0.18.10)
Requirement already satisfied: dpcpp-cpp-rt==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: mkl-dpcpp==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: intel-openmp==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: intel-opencl-rt==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: intel-sycl-rt==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: mkl==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-blas==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-lapack==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-dft==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-sparse==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-vm==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-rng==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-stats==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: onemkl-sycl-datafitting==2025.0.1 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from mkl-dpcpp==2025.0.1->intel_extension_for_pytorch) (2025.0.1)
Requirement already satisfied: tbb==2022.* in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel-opencl-rt==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2022.1.0)
Requirement already satisfied: intel-cmplr-lic-rt==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel-opencl-rt==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: intel-cmplr-lib-ur==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel-openmp==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: intel-cmplr-lib-rt==2025.0.5 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel-sycl-rt==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (2025.0.5)
Requirement already satisfied: umf==0.9.* in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from intel-cmplr-lib-ur==2025.0.5->intel-openmp==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (0.9.1)
Requirement already satisfied: tcmlib==1.* in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from tbb==2022.*->intel-opencl-rt==2025.0.5->dpcpp-cpp-rt==2025.0.5->intel_extension_for_pytorch) (1.2.0)
Requirement already satisfied: ruamel.yaml.clib>=0.2.7 in c:\users\me\miniconda3\envs\rapids-25.04\lib\site-packages (from ruamel.yaml->intel_extension_for_pytorch) (0.2.12)

[huiyan2021]

Hi @krembuk , I cannot reproduce, I tried conda env (with python3.12) and python venv (with python3.10), both work at my side.

Could you download and run collect_env.py, and attach the result here, as well as the result of pip list

Thanks!