华为：2025年Atlas 800T A3超节点技术白皮书

Core Insights - Huawei's Atlas 800T A3 supernode is designed for AI computing in industries such as internet, telecommunications, and finance, emphasizing high performance, reliability, and ease of deployment [1][25] - The product consists of two main components: the supernode server and the LingQu bus device, which together provide robust hardware support for data center infrastructure [1][25] Group 1: Product Overview - The Atlas 800T A3 supernode features a 10U rack design, supporting standard 19-inch cabinet installation, and integrates key components such as CPU drawers, NPU drawers, and IO frames for high density and easy maintenance [1][41] - It is equipped with four Kunpeng 920 processors and eight Ascend 910 AI modules, achieving peak computing power of 6.016 PFLOPS at FP16 and 12.032 POPS at INT8, with a bidirectional interconnect bandwidth of 784 GB/s between any two NPU modules [1][25][29] Group 2: Power and Cooling Systems - The power system supports dual input options of 220VAC or 336HVDC/240HVDC, with a maximum input power of 16.2 kW and a power conversion efficiency of up to 96%, featuring a 5+1 backup and multiple protection functions [2][43] - The cooling system employs a combination of air cooling and Huawei's self-developed LAAC liquid cooling module, ensuring stable thermal performance under varying loads [2][43] Group 3: Network and Interconnectivity - The LingQu bus device, based on LingQu 630 V1, provides high-performance, high-bandwidth, and low-latency network connections, supporting various power modes and 1+1 power backup [2][34] - The internal network of the Atlas 800T A3 supernode utilizes Huawei's self-developed bus switching protocol, enabling high-performance networking with configurations supporting 64, 96, 192, and 384 supernodes [2][36] Group 4: Hardware Specifications - The supernode server includes a rich array of interfaces, such as LingQu bus interfaces, USB, and management network ports, accommodating various connectivity needs [3][41] - The system management integrates the iBMC intelligent management system, compatible with IPMI 2.0, supporting remote control, fault detection, and alarm reporting [3][41]