The list demonstrates a mixture of architectures and manufacturers, according to Erich Strohmaier. The systems in the list are are getting older. The sum of performance amounts to 749 PFlop/s. In June 2008 there was an inflection point. The projected performance development and growth rates include exascale by 2021-2022.
Erich Strohmaier gave an overview of the performance of accelerators by type of performance and mentioned the NVIDIA chips; the Intel Xeon Phi; and the Xeon Phi Main. As for the performance share of accelerators, he showed that in 2008, the accelerator systems started contributing and influencing the list. In 2016, their contribution came down but now, it is on the rise again. There is a lack of growth in the basic systems. The research machines are operating with accelerators but budgets are limited comparing to the commercial machines that are operating without accelerators.
In the performance of countries, China is on the rise. The systems in China are not smaller on average than in the USA, according to Erich Strohmaier. In the vendors/system share, the Chinese manufacturers have a prominent role in the TOP500. Erich Strohmaier cited Lenovo, Sugon, Inspur, and Huawei. HPE is on top in the vendors/system share.
The most energy-efficient architecture is the Tsubame 3.0, an SGI ICE XA system. In the Top10, nine out of 10 systems are new. Those are not all big systems. Most systems are Xeon systems. Most of them are accelerated by NVIDIA chips. The nr. 7 is an exception since it is accelerated by PEZY-SC2. Aries is a promising technology for interconnect. The Piz Daint has it.
The power optimized ration for the Linpack (HPL) benchmark shows -13% and for power -28%. As for energy efficiency, there is a sharp increase for maximum efficiency.
There is a longstanding interest to augment HPL with other benchmarks. One is starting to publish HPCG numbers with the TOP500 list. The submission still has to go to Jack Dongarra and Michael Heroux first. There are about 109 measured systems for HPCG. There are 47 HPCG entries which made the TOP500 but they are not necessarily the top47 HPCG systems. Erich Strohmaier announced that there will be further adding ability to resort and filter to the web lists.
In the HPCG benchmark, the K computer is the no. 1 and it is on spot 8 in the TOP500. The
Tianhe-2 is the no. 2, both in the HPCG and TOP500 lists. Erich Strohmaier told the audience that more information will be provided in the Bird-of-a-Feather sessions nrs. 14 and 19, later this week at ISC17.