主题：新天河一号登顶全球最快超级计算机宝座 -- 尖石

China's Tianhe-1A is world's fastest supercomputer, plans to usurp the West now completeIt happened. China just passed the US and the world with the reveal of the world's fastest supercomputer. The fully operational Tianhe-1A, located at the National Supercomputer Center in Tianjin, scored 2.507 petaflops as measured by the LINPACK benchmark. That moves it past Cray's 2.3 petaflops Jaguar located at Oak Ridge National Lab in Tennessee. Tianhe-1A achieved the record using 7,168 NVIDIA Tesla M2050 GPUs and 14,336 Intel Xeon CPUs consuming 4.04 megawatts. Knowing that 10 petaflops is within reach by 2012, we'll see if Tianhe-1A can maintain its title when the new Top500 supercomputers list is released next week.

外链出处

新天河一号的峰值计算性能达到了4.7Pflops，即每秒4.7千万亿次，是上一代的3.9 倍，Linpack值达到2.507Pflops，达到上一代的4.4倍。

新天河一号首次采用了2048颗自主研发的八核飞腾FT-1000 CPU。目前的配置是14336颗英特尔六核至强X5670 2.93GHz CPU和7168颗Nvidia Tesla M2050 GPU和2048颗自主研发的八核飞腾FT-1000 CPU。处理内核数突破20万颗，是去年24576颗的8.25倍。

新天河一号不仅仅是升级，而是几乎更新了整个结构，上一代采用的是英特尔四核CPU+ATI GPU，通过Infiniband互连，而新一代则是英特尔六核CPU+NVIDIA GPU+自主八核飞腾CPU，通过专有网络互连。另外，通过采用双精度性能更高的GPU后，天河一号的系统效率，即Linpack值与理论峰值的比率，也由原来的 47%提高了现在的53.3%。

11月15日，top500就要公布最新排名，希望新天河一号可以一举登顶！