multi-target not supported at /pytorch/aten/src/THCUNN/generic/classNLLCriterion.cu::15
在计算点云语义分割crossentropy时,遇到了RuntimeError: multi-target not supported at /pytorch/torch/lib/THCUNN/generic/ClassNLLCriterion.cu其原因在于Loss函数出入维度不对loss_func = nn.CrossEntropyLoss()loss =loss_func(output, labels)在我的函数中,loss函数的第一个输入为(batch_size, n, C),其中n是点