dist.broadcast(base_tensor, src=0) logger.info(f"Broadcast result: {base_tensor.cpu()}") # 2. 广播对象列表 obj_list = [obj_data] if rank == 0 else [None] dist.broadcast_object_list(obj_list, src=0) logger.info(f"Broadcast objects: {obj_list}") # 3. 全局归约 (求和) dist....
🐛 Describe the bug After the torch.distributed.recv_object_list(obj, dst) method returns, the obj resides on the sender GPU's memory, not on the receiver GPU's memory. I would expect obj to be residing on the receiving GPU. import torch ...
torch.distributed包为在一台或多台机器上运行的多个计算节点上的多进程并行性提供PyTorch支持和通信原语。类 torch.nn.parallel.DistributedDataParallel()基于此功能构建,以提供同步分布式训练作为包装器任何PyTorch模型。这与 Multiprocessing package - torch.multiprocessing 和 torch.nn.DataParallel() 因为它支持多个联网...
torch.distributed.broadcast(tensor,src,group=<object object>,async_op=False)[source] 将张量广播到整个组。在收集中所有参与的进程,张量必须有相同的元素数。 参数: tensor(Tensor) – Data to be sent ifsrcis the rank of current process, and tensor to be used to save received data otherwise. tens...
现在基本都是用DistributedDataParallel了:PyTorch分布式训练简明教程 进行DistributedDataParallel时有个broadcast_buffers参数,用于控制buffers是否要在每一张卡上同步,还是各用各的,参考链接PyTorch 多进程分布式训练实战 分布式训练中几个名词的含义(参考链接): node,结点,指一台物理机器,比如一台服务器,不同的服务器有不...
""" if not is_distributed_training_run(): return assert ( self.distributed_model is None ), "init_ddp_non_elastic must only be called once" broadcast_buffers = ( self.broadcast_buffers_mode == BroadcastBuffersMode.FORWARD_PASS ) self.distributed_model = init_distributed_data_parallel_model...
🚀 The feature, motivation and pitch could save the effor to create [None, None, ...] (length=world_size) similar collectives are broadcast_object_list, scatter_object_list motivated by PR #118755 Alternatives No response Additional conte...
torch.distributed.deprecated.init_process_group(backend, init_method='env://', **kwargs) 初始化分布式包 参数: backend(str)-待使用后台的名字。取决于构建时配置有效值,包括:tco,mpi,gloo以及nccl。 init_method(str,optional)-指定如何初始化包的URL ...
此外broardcast可以将已经broadcast的大tensor的index转化为对应的没有broadcast的小tensor的index。注意`to_index`和`index_to_position`并不是互相为逆函数,因此`to_index(pos, shape, index)`和`pos2=index_to_position`中pos只是绝大多数情况下等于pos2,有时strided access和broadcast并用可能导致pos与pos2不...
Examples: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>>rnn=nn.RNN(10,20,2)>>>input=torch.randn(5,3,10)>>>h0=torch.randn(2,3,20)>>>output,hn=rnn(input,h0) LSTM classtorch.nn.LSTM(*args,**kwargs)[source] Applies a multi-layer long short-term memory (LSTM) RNN to ...