具有忧患意识的天河2 当然不会闲着,它准备进行一次全面升级,把性能提升到 110 PF。眼看英特尔要提供相关升级芯片,美国商务部果断出手了。以可能被用于核武计算为由,美国政府禁止英特尔向中国及其邻国巴基斯坦出口英特尔的PHI芯片。一不做二不休,美商务部同时禁止NVIDIA与AMD向中国出口基于显卡的 GPGPU。这一石三鸟的好招似乎把天河2升级扼杀在了萌芽状态,还断了其他基于显卡的超级机的生路。而美国计划在2018年推出名为“巅峰"(Summit) 的180 PF 的超级机。可以想象,美国商务部内应该是一片得意的笑声。相关网页下有两百个评论,有的美国人称赞其政府干得好,但更多的人似乎对这种做法不以为然。连美国国家安全局(NSA)人士都表示,美商务部这个禁止出口的决定可能损害美国公司的全球竞争力 (we were fast realizing that our preferred limits were undermining the global competitiveness of the U.S. computer industry — the very industry on which we relied for our success. )也许NSA知道得更多?
博主回复(2016-6-21 13:10):There are three submissions which are finalists for the Gordon Bell Award at SC16 that are based on the new Sunway TaihuLight system. These three applications are: (1) a fully-implicit nonhydrostatic dynamic solver for cloud-resolving atmospheric simulation; (2) a highly effective global surface wave numerical simulation with ultra-high resolution; (3) large scale phase-field simulation for coarsening dynamics based on Cahn-Hilliard equation with degenerated mobility. All these three applications have scaled to around 8 million cores (close to the full system scale). The applications that come with an explicit method (such as wave simulation and phase-field simulation) have achieved a sustained performance of 30 to 40 PFlops. In contrast, the implicit solver achieves a sustained performance of around 1.5 PFlops, with a good convergence rate for large-scale problems. These performance number may be improved before the SC16 Conference in November 2016.