gsplat/cuda/csrc/backward.cu(108): error: no suitable conversion function from "half" to "int" exists

[xiaoqin422]

When I try to install git+https://github.com/nerfstudio-project/gsplat.git with pip, CSRC building gets an error. The following error message is displayed:
gsplat/cuda/csrc/backward.cu(108): error: no suitable conversion function from "half" to "int" exists

gsplat/cuda/csrc/backward.cu(108): error: no suitable conversion function from "__half" to "int" exists

[phongnhhn92]

@liruilong940607 I am also having this issue. Please help !

[xiaoqin422]

邮件已收到。

[kerrj]

what CUDA compute capability is your GPU? @liruilong940607 found that the environment variable TORCH_CUDA_ARCH_LIST incorrectly had old compute capabilities that prevented compilation, you can try unset TORCH_CUDA_ARCH_LIST to see if that fixes it

[liruilong940607]

We only supports GPUs with CUDA compute capability >= 5.3. You can check your GPU's compute capability from here: https://developer.nvidia.com/cuda-gpus

[suvigy]

Could 12.2 Cuda version be a problem?

[liruilong940607]

No CUDA 12.2 should work