阿里发布自研CPU芯片倚天710：采用5nm工艺，性能超过业界标杆20%

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"10月19日，在2021云栖大会上，阿里巴巴旗下半导体公司平头哥发布自研云芯片倚天710。该芯片是业界性能最强的ARM服务器芯片，性能超过业界标杆20%，能效比提升50%以上。倚天710是阿里云推进“一云多芯”策略的重要一步，也是阿里第一颗为云而生的CPU芯片，将在阿里云数据中心部署应用。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/a6\/ba\/a6d8e9cee310846af7dc329a82871fba.jpg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"倚天710采用业界最先进的5nm工艺，单芯片容纳高达600亿晶体管。在此之前，服务器芯片最先进的工艺仍为7nm，倚天710是第一颗采用5nm工艺的服务器芯片。据了解，5nm工艺对能量密度、芯片内部结构的布局有极高的要求，在研发过程中，平头哥灵活调度多达30种不同EDA软件、深度定制时钟网络和定制IP技术，此外平头哥还采用了先进的多芯片堆叠技术，最后成功确保了芯片性能、功耗的优化。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在芯片架构上，倚天710基于最新的ARMv9架构，内含128核CPU，主频最高达到3.2GHz，能同时兼顾性能和功耗。在内存和接口方面，集成业界最领先的DDR5、PCIe5.0等技术，能有效提升芯片的传输速率，并且可适配云的不同应用场景。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/97\/9c\/97982a04209ff612320085aba822c29c.jpg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"据了解，倚天710采用了很多最领先的技术，包括ARMv9、DDR5、PCIe5.0等等，这些技术都是刚刚诞生不久，平头哥对此做了深度定制，同时也引入了许多自研技术。平头哥从前端架构设计到后端物理实现全自研，既要克服工艺以及IP不成熟带来的困难，又要针对云场景的独特要求做定制化设计，技术上保障性能、功耗的均衡。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在前端设计方面，为解决核数众多条件下的带宽瓶颈，平头哥对于片上互联作出特殊优化，采用新的流控算法，降低系统反压，有效提升了系统效率和扩展性，使单核高性能有效地转化为整个系统的高性能。此外，通过新的系统地址到DRAM地址的转换机制，支持安全、非安全隔离、多NUMA、异常通道隔离多种特性，同时DRAM读写效率大幅度提升；在后端物理实现方面，灵活调度多达30种不同EDA软件、深度定制时钟网络和定制IP技术，此外平头哥还采用了先进的多芯片堆叠技术，最后成功确保了芯片性能、功耗的优化。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"为解决云计算高并发条件下的带宽瓶颈，倚天710针对片上互联进行了特殊优化设计，通过全新的流控算法，有效缓解系统拥塞，从而提升了系统效率和扩展性。在标准测试集SPECint2017上，倚天710的分数达到440，超出超过业界标杆20%，能效比提升50%以上。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"云是高性能服务器芯片最大的应用场景。倚天710针对云场景的高并发、高性能和高能效需求而设计，将领先的芯片设计技术与云场景的独特需求相结合，最终实现了性能和能效比的突破。目前，阿里云已全面兼容x86、ARM、RISC-V等主流芯片架构，自研倚天710进一步丰富了阿里云的底层技术架构，并与飞天操作系统协同，为云上客户提供高性价比的云服务。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里云智能总裁、达摩院院长张建锋表示：“基于阿里云‘一云多芯’和‘深基础’的商业策略，我们发布倚天710，希望满足客户多样性的计算需求，这款芯片不出售，主要是阿里云自用。我们将继续与英特尔、英伟达、AMD、ARM等合作伙伴保持密切合作，为客户提供更多选择。”"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"目前，平头哥拥有处理器IP、AI芯片及通用芯片等产品家族，旗下玄铁系列处理器出货量已达25亿颗；两年前问世的阿里第一颗芯片含光800已实现规模化应用，通过阿里云服务了搜索推荐、视频直播等行业客户。"}]}]}