新一期全球超级计算机500强榜单17日面世，中国超算上榜数量蝉联第一，美国超算“顶点”仍是运算速度冠军。新榜单还有一大看点是史上首次所有上榜超算的速度都突破了每秒千万亿次。
全球超算500强榜单每半年发布一次，在德国法兰克福举行的国际超级计算大会17日发布了最新榜单。中国境内有219台超算上榜，在上榜数量上位列第一，美国以116台位列第二，日本、法国、英国和德国依次位居其后。这是2017年11月以来，中国超算上榜数量连续第四次位居第一。
中国企业也继续保持上榜数量优势。在此次榜单上，联想、浪潮和中科曙光分别以173台、71台和63台的数量位居全球超算制造商前三位。
美国能源部下属橡树岭国家实验室开发的“顶点”以每秒14.86亿亿次的浮点运算速度再次登顶，这超过了它在半年前榜单上的每秒14.35亿亿次的纪录。
新一期榜单的前四位较上次没有变化。美国能源部下属劳伦斯利弗莫尔国家实验室开发的“山脊”、中国超算“神威·太湖之光”和“天河二号”分列二三四位。
值得关注的是，本次入选500强榜单的全部超算的浮点运算速度均已突破每秒千万亿次。这份榜单的最低“门槛”是每秒1022万亿次。
全球超级计算机500强榜单始于1993年，由国际组织“TOP500”编制，每半年发布一次，是给全球已安装的超级计算机排座次的知名榜单。
TOP500.org在新闻稿中表示，2019年6月的榜单是TOP500榜单26年的历史中的又一个全新里程碑：上榜的全部500台超级计算机HPL基准测试成绩全部越过1PetaFLOPS，也就是说全球最强的500台超级计算机全部达到了一千万亿次每秒的浮点运算能力。在这其中，联想制造的超级计算机数量由上期榜单的140台提升至173台，远远超过其他同行业厂商。
联想设计制造的超级计算机正在全面服务中国与全球客户。
l 联想交付的173台超级计算机有74台部署在中国，不仅是全球最大的超级计算机供应商，也是中国最大的超级计算机供应商。中国与美国的科技公司与研究机构交付了全部Top500超级计算机。
l 全球Top500超算中，联想进入了19个国家与地区的市场，是数量最多的商业公司。
l 全球最强的30台超算中，联想交付了9台。
l 10个国家的最强超算由联想交付，包括在澳大利亚、巴西、加拿大、德国、爱尔兰、荷兰、挪威、新加坡、南非和西班牙。
l 由联想设计制造的德国最强超算“超级慕尼黑-NG”（SuperMUC-NG）位列全球最强超算第九名。
作为人工智能、空气动力、大气科学、能源科学等技术的建筑材料与动力，性能更强更高效的超级计算机是全球研究机构、大学与公司正在追求的目标。TOP500发布的榜单显示，中国与美国的科技公司与组织不仅建造了全部TOP500的超级计算机，同时也部署了全球最多的超级计算机。从数量上来看，中国拥有219台超算，美国拥有116台超算；中国公司联想、浪潮和曙光是全球最大的三家超算供应商，分别交付了173、71与63台Top500超级计算机。美国公司惠普、克雷、Bull等位列之后。
BERKELEY, Calif.; FRANKFURT, Germany; and KNOXVILLE, Tenn.— The 53rd edition of the TOP500 marks a milestone in the 26-year history of the list. For the first time, all 500 systems deliver a petaflop or more on the High Performance Linpack (HPL) benchmark, with the entry level to the list now at 1.022 petaflops.
Top 10 rundown
The top of the list remains largely unchanged, with only two new entries in the top 10, one of which was an existing system that was upgraded with additional capacity.
Two IBM-built supercomputers, Summit and Sierra, installed at the Department of Energy’s Oak Ridge National Laboratory (ORNL) in Tennessee and Lawrence Livermore National Laboratory in California, respectively, retain the first two positions on the list. Both derive their computational power from Power 9 CPUs and NVIDIA V100 GPUs. The Summit system slightly improved its HPL result from six months ago, delivering a record 148.6 petaflops, while the number two Sierra system remains unchanged at 94.6 petaflops.
The Sunway TaihuLight, a system developed by China’s National Research Center of Parallel Computer Engineering & Technology (NRCPC) and installed at the National Supercomputing Center in Wuxi, holds the number three position with 93.0 petaflops. It’s powered by more than 10 million SW26010 processor cores.
At number four is the Tianhe-2A (Milky Way-2A) supercomputer, developed by China’s National University of Defense Technology (NUDT) and deployed at the National Supercomputer Center in Guangzhou. It used a combination of Intel Xeon and Matrix-2000 processors to achieve an HPL result of 61.4 petaflops.
Frontera, the only new supercomputer in the top 10, attained its number five ranking by delivering 23.5 petaflops on HPL. The Dell C6420 system, powered by Intel Xeon Platinum 8280 processors, is installed at the Texas Advanced Computing Center of the University of Texas.
At number six is Piz Daint, a Cray XC50 system installed at the Swiss National Supercomputing Centre (CSCS) in Lugano, Switzerland. It’s equipped with Intel Xeon CPUs and NVIDIA P100 GPUs. Piz Daint remains the most powerful system in Europe.
Trinity, a Cray XC40 system operated by Los Alamos National Laboratory and Sandia National Laboratories improves its performance to 20.2 petaflops, which earns it the number seven position. It’s powered by Intel Xeon and Xeon Phi processors.
The AI Bridging Cloud Infrastructure (ABCI) is installed in Japan at the National Institute of Advanced Industrial Science and Technology (AIST) and is listed at number eight, delivering 19.9 petaflops. The Fujitsu-built system is equipped with Intel Xeon Gold processors and NVIDIA Tesla V100 GPUs.
SuperMUC-NG is in the number nine position with 19.5 petaflops. It’s installed at the Leibniz-Rechenzentrum (Leibniz Supercomputing Centre) in Garching, near Munich. The Lenovo-built machine is equipped with Intel Platinum Xeon processors, as well as the company’s Omni-Path interconnect.
The upgraded Lassen supercomputer captures the number 10 spot, with an upgrade that boosted its original 15.4 petaflops result on HPL to 18.2 petaflops. Installed at Lawrence Livermore National Laboratory, Lassen is the unclassified counterpart to the classified Sierra system and shares the same IBM Power9/NVIDIA V100 GPU architecture.