阿里發佈自研CPU芯片倚天710：採用5nm工藝，性能超過業界標杆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雲棲大會上，阿里巴巴旗下半導體公司平頭哥發佈自研雲芯片倚天710。該芯片是業界性能最強的ARM服務器芯片，性能超過業界標杆20%，能效比提升50%以上。倚天710是阿里雲推進“一雲多芯”策略的重要一步，也是阿里第一顆爲雲而生的CPU芯片，將在阿里雲數據中心部署應用。"}]},{"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採用業界最先進的5nm工藝，單芯片容納高達600億晶體管。在此之前，服務器芯片最先進的工藝仍爲7nm，倚天710是第一顆採用5nm工藝的服務器芯片。據瞭解，5nm工藝對能量密度、芯片內部結構的佈局有極高的要求，在研發過程中，平頭哥靈活調度多達30種不同EDA軟件、深度定製時鐘網絡和定製IP技術，此外平頭哥還採用了先進的多芯片堆疊技術，最後成功確保了芯片性能、功耗的優化。"}]},{"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":"在芯片架構上，倚天710基於最新的ARMv9架構，內含128核CPU，主頻最高達到3.2GHz，能同時兼顧性能和功耗。在內存和接口方面，集成業界最領先的DDR5、PCIe5.0等技術，能有效提升芯片的傳輸速率，並且可適配雲的不同應用場景。"}]},{"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":"據瞭解，倚天710採用了很多最領先的技術，包括ARMv9、DDR5、PCIe5.0等等，這些技術都是剛剛誕生不久，平頭哥對此做了深度定製，同時也引入了許多自研技術。平頭哥從前端架構設計到後端物理實現全自研，既要克服工藝以及IP不成熟帶來的困難，又要針對雲場景的獨特要求做定製化設計，技術上保障性能、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":"在前端設計方面，爲解決核數衆多條件下的帶寬瓶頸，平頭哥對於片上互聯作出特殊優化，採用新的流控算法，降低系統反壓，有效提升了系統效率和擴展性，使單核高性能有效地轉化爲整個系統的高性能。此外，通過新的系統地址到DRAM地址的轉換機制，支持安全、非安全隔離、多NUMA、異常通道隔離多種特性，同時DRAM讀寫效率大幅度提升；在後端物理實現方面，靈活調度多達30種不同EDA軟件、深度定製時鐘網絡和定製IP技術，此外平頭哥還採用了先進的多芯片堆疊技術，最後成功確保了芯片性能、功耗的優化。"}]},{"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":"爲解決雲計算高併發條件下的帶寬瓶頸，倚天710針對片上互聯進行了特殊優化設計，通過全新的流控算法，有效緩解系統擁塞，從而提升了系統效率和擴展性。在標準測試集SPECint2017上，倚天710的分數達到440，超出超過業界標杆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":"雲是高性能服務器芯片最大的應用場景。倚天710針對雲場景的高併發、高性能和高能效需求而設計，將領先的芯片設計技術與雲場景的獨特需求相結合，最終實現了性能和能效比的突破。目前，阿里雲已全面兼容x86、ARM、RISC-V等主流芯片架構，自研倚天710進一步豐富了阿里雲的底層技術架構，並與飛天操作系統協同，爲雲上客戶提供高性價比的雲服務。"}]},{"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":"阿里雲智能總裁、達摩院院長張建鋒表示：“基於阿里雲‘一雲多芯’和‘深基礎’的商業策略，我們發佈倚天710，希望滿足客戶多樣性的計算需求，這款芯片不出售，主要是阿里雲自用。我們將繼續與英特爾、英偉達、AMD、ARM等合作伙伴保持密切合作，爲客戶提供更多選擇。”"}]},{"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，平頭哥擁有處理器IP、AI芯片及通用芯片等產品家族，旗下玄鐵系列處理器出貨量已達25億顆；兩年前問世的阿里第一顆芯片含光800已實現規模化應用，通過阿里雲服務了搜索推薦、視頻直播等行業客戶。"}]}]}