pytorch多GPU使用的方法model=nn.DataParallel(model).cuda() 2022-10-24 09:06:18 单GPU:importosos.environ["CUDA_VISIBLE_DEVICES"] ="0"12多GPU:device_ids= [0,1,2,3]单GPU:importosos.environ["CUDA_VISIBLE_DEVICES"] ="0"12多GPU:device_ids= [0,1,2,3]