cudatoolkit 11.0 doesn't support compute_86

[njzjz]

deepmd-kit/source/op/cuda/CMakeLists.txt

Line 32 in b3b2662

-gencode arch=compute_86,code=sm_86; # Anpere - RTX 3090

compute_86 is only supported in cudatoolkit >= 11.1

related PRs: #353, #354

[amcadmus]

can be closed if #390 solves this issue @njzjz