SetAlgConfig

Sets the communication algorithm.

      
           uint32_t SetAlgConfig(const std::string &algConfig)

**Table 1** Parameters
Parameter	Input/Output	Description
algConfig	Input	Communication algorithm configuration. The value is of the string type and can contain a maximum of 128 bytes. For the Atlas A3 training products / Atlas A3 inference products , the following values are supported: "AllReduce=level0:doublering": AllReduce communication task. "AllGather=level0:doublering": AllGather communication task. "ReduceScatter=level0:doublering": ReduceScatter communication task. "AlltoAll=level0:fullmesh;level1:pairwise": AlltoAllV and AlltoAllcommunication tasks. "BatchWrite=level0:fullmesh": BatchWrite communication task. For the Atlas A2 training products / Atlas A2 inference products , this parameter is reserved and does not take effect after being configured. By default, only the FullMesh algorithm is supported. Full-mesh algorithm. Full-mesh connections are established between NPUs, that is, data can be directly transmitted between any two NPUs. For details about the algorithm of "Collective Communication Algorithm Introduction" in .

None

For details about the calling example of this API, see Example.

Parent topic: HCCL Tiling APIs