运行mmdetection的benchmark.py报错:RuntimeError: Distributed package doesn‘t have NCCL built in
起因:利用mmdetection的tools/benchmark.py计算FPS时报错。错误内容如下:Traceback(mostrecentcalllast):File"tools/analysis_tools/benchmark.py",line191,inmain()File"tools/analysis_tools/benchmark.py",line183,inmaininit_dist