installation issue

[gardiens]

Hello, Thank you a lot for this repo
I run into an error lately when I tried to install your repo:

line 7, in <module>
    from frnn import _C
    ImportError: libtorch_cuda_cu.so: cannot open shared object file: No such file or directory

Sometime this error happen on prefix_sum as well but not with the version I am currently using,
I am using torch 2.2.0 with cuda 11.8

[gardiens]

Ok I found the solution,
If you are experiencing strange :

• ImportError: libtorch_cuda_cu.so: cannot open shared object file: No such file or directorylibtorch.so or
  ImportError: libtcudartso.11: cannot open shared object file: No such file or directory even though you were working with cuda 12.0,
  Check if their is a build folder in FRNN and FRNN/external/prefix_sum and remove it because the installation withpip install .or python setup.py install doesn't recompile the binary by default and it may have been compiled with the wrong cuda compiler , ( even if you did pip uninstall frnn/prefix_sum). if it still doesn't work, remove every other created filed by setup.py such as cdist.
  I had this issue when I was trying to upgrade my pytorch and therefore upgrading my CUDA version
  NB: in this repo especially, if your setup.py or pip install . doesn't take a lot of times in FRNN it often means that it will use again a built binary which is unsafe when changing cuda version