ValueError: Unknown CUDA arch (8.0) or GPU not supported

[HALaser]

File "setup.py", line 70, in <module>
   cmdclass={"build_ext": torch.utils.cpp_extension.BuildExtension},
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/setuptools/__init__.py", line 153, in setup
   return distutils.core.setup(**attrs)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/core.py", line 148, in setup
   dist.run_commands()
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/dist.py", line 966, in run_commands
   self.run_command(cmd)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/dist.py", line 985, in run_command
   cmd_obj.run()
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/command/build.py", line 135, in run
   self.run_command(cmd_name)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/cmd.py", line 313, in run_command
   self.distribution.run_command(command)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/dist.py", line 985, in run_command
   cmd_obj.run()
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/setuptools/command/build_ext.py", line 79, in run
   _build_ext.run(self)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/command/build_ext.py", line 340, in run
   self.build_extensions()
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 372, in build_extensions
   build_ext.build_extensions(self)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/command/build_ext.py", line 449, in build_extensions
   self._build_extensions_serial()
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/command/build_ext.py", line 474, in _build_extensions_serial
   self.build_extension(ext)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/setuptools/command/build_ext.py", line 196, in build_extension
   _build_ext.build_extension(self, ext)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/command/build_ext.py", line 534, in build_extension
   depends=ext.depends)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/distutils/ccompiler.py", line 574, in compile
   self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 288, in unix_wrap_compile
   "'-fPIC'"] + cflags + _get_cuda_arch_flags(cflags)
 File "/home/dgxadmin/miniconda3/envs/ZoomSloMo/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 1027, in _get_cuda_arch_flags
   raise ValueError("Unknown CUDA arch ({}) or GPU not supported".format(arch))
ValueError: Unknown CUDA arch (8.0) or GPU not supported

Error comes from missing arch for compute=80 in pytorch=1.4.0 version (got it from HighResSlowMo.ipynb )
see
/lib/python3.7/site-packages/torch/utils/cpp_extension.py -> def _get_cuda_arch_flags(cflags=None):

--> just give -gencode=arch=compute_XX,code=sm_XX with compile args in setup.py
--> in my case: "-gencode=arch=compute_75,code=sm_75",
-->in /codes/models/modules/DCNv2/setup.py

def get_extensions():
    this_dir = os.path.dirname(os.path.abspath(__file__))
    extensions_dir = os.path.join(this_dir, "src")

    main_file = glob.glob(os.path.join(extensions_dir, "*.cpp"))
    source_cpu = glob.glob(os.path.join(extensions_dir, "cpu", "*.cpp"))
    source_cuda = glob.glob(os.path.join(extensions_dir, "cuda", "*.cu"))

    sources = main_file + source_cpu
    extension = CppExtension
    extra_compile_args = {"cxx": []}
    define_macros = []

    if torch.cuda.is_available() and CUDA_HOME is not None:
        extension = CUDAExtension
        sources += source_cuda
        define_macros += [("WITH_CUDA", None)]
        extra_compile_args["nvcc"] = [
            "-DCUDA_HAS_FP16=1",
            "-gencode=arch=compute_75,code=sm_75",
            "-D__CUDA_NO_HALF_OPERATORS__",
            "-D__CUDA_NO_HALF_CONVERSIONS__",
            "-D__CUDA_NO_HALF2_OPERATORS__",
        ]
    else:
        raise NotImplementedError('Cuda is not availabel')

Its an torch-version-issue

[yuan243212790]

i have the same question. how do you sovle it?