For the first time only Petaflop systems made the list. The total aggregate performance of all 500 system has now
risen to 1.56 Exaflops.
Two IBM build systems called Summit and Sierra and installed at DOE’s Oak Ridge National Laboratory (ORNL) in
Tennessee and Lawrence Livermore National Laboratory in California kept the first two positions in the TOP500 in
the USA. The Summit system slightly improved it’s High Performance Linpack (HPL) since the last TOP500 listing
half a year ago.
The number of installations in China continues to rise strongly. 44.0 % of all
system are now listed as
being installed in China. The number of system listed in the USA remains near it's all time low
at 23.2 %.
However, systems in the USA are on average larger, which allowed the USA
to stay close to China (56.9%) in terms of installed performance.
Highlights from the Top 10
Summit and Sierra kept the #1 and #2 spot in the USA
The No 5 system Frontera is newly installed. The No 10 system (Lassen) was enlarged which allowed it to
come back into the TOP10.
Summit, an IBM-built system at the Oak Ridge National Laboratory (ORNL) in Tennessee, USA, remains at the
#1 spot with an improved performance of 148.8 Pflop/s on the HPL benchmark, which is used to rank the TOP500
list. Summit has 4,356 nodes, each one housing two Power9 CPUs with 22 cores each and six NVIDIA Tesla V100
GPUs each with 80 streaming multiprocessors (SM). The nodes are linked together with a Mellanox dual-rail
EDR InfiniBand network.
Sierra, a system at the Lawrence Livermore National Laboratory, CA, USA stayed at #2. It’s architecture
is very similar to the new #1 systems Summit. It is build with 4,320 nodes with two Power9 CPUs and four
NVIDIA Tesla V100 GPUs. Sierra achieved 94.6 Pflop/s.
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, which is in
China's Jiangsu province was in the lead for the first 2 years of its life, and is now listed at the #3
position with 93 Pflop/s.
Tianhe-2A (Milky Way-2A), a system developed by China’s National University of Defense Technology (NUDT)
and deployed at the National Supercomputer Center in Guangzho, China remained the No. 4 system with 61.4
Frontera, a Dell C6420 system installed at the Texas Advanced Computing Center of the University of Texas
at No. 5 is the only new system in the TOP10. It achieved 23.5 Pflop/s using 448,448 of its intel Xeon
The No. 6 is the Piz Daint, a Cray XC50 system installed at the Swiss National Supercomputing Centre
(CSCS) in Lugano, Switzerland and the most powerful system in Europe.
Trinity a Cray XC40 system operated by Los Alamos National Laboratory and Sandia National Laboratories
and located at Los Alamos improved it’s performance to 20.2 Pflop/s, which puts it at the No. 7
The AI Bridging Cloud Infrastructure (ABCI) is installed in Japan at the National Institute of Advanced
Industrial Science and Technology (AIST) and listed as No. 8 with a performance of 16.9 Pflop/s. The Fujitsu
build system is using Xeon Gold processors with 20 cores and the NVIDIA Tesla V100 as well.
SuperMUC-NG is the next-generation high-end supercomputer at the Leibniz-Rechenzentrum (Leibniz
Supercomputing Centre) in Garching near Munich. With more than 311,040 cores and a HPL performance of 19.5
PFLop/s it is listed at No. 9.
The system Lassen at No 10 is an IBM Power System with NVIDIA Tesla V100 accelerators. It has been upgraded from its listing 6 month ago and entered the TOP10 with a performance of 18.3 PFlop/s.
The Titan Cray XK7 system at ORNL and Sequoia the last BlueGene/Q system at LLNL were pushed out of the TOP10.
Highlights from the List
For the first time the TOP500 contains only Pflop-systems.
A total of 134 systems on the list are using accelerator/co-processor technology,
down from 138 six months ago.
62 of these use NVIDIA Volta
chips, 50 use Nvidia Pascal, and there are
now 12 systems with Nvidia Kepler.
Intel continues to provide the processors for the largest share (95.60 percent) of
We have incorporated the HPCG benchmark results into the Top500 list to provide a more balanced look at
The 2 top DOE systems Sierra and Summit also lead with respect to HPCG performance. They are followed by
the Japanese K-Computer, which due to its balanced architecture and comparable high memory bandwidth remains
No 3 on the HPCG list.
Japanese systems continue to take leading roles in the Green500. However, the top 2 DOE systems Sierra
Summit also make the top10 in the Green500 and demonstrate the progress in performance efficiency.
The entry level to the list moved up to the
1,021.0 Tflop/s mark on the Linpack
The last system on the newest list was listed at position 406 in the
Total combined performance of all 500 exceeded the Exaflop barrier with
now 1.56 exaflop/s (Eflop/s) up from
1.41 exaflop/s (Eflop/s) 6 months ago.
The entry point for the TOP100 increased to
The average concurrency level in the TOP500 is 118,213 cores
per system up from 118,173 six months ago.
Installations by countries:
TOP 10 HPC manufacturer:
TOP 10 Interconnect Technologies:
TOP 10 Processor Technologies:
The data collection and curation of the Green500 project has been integrated with the TOP500 project. This
allows submissions of all data through a single webpage at http://top500.org/submit
The most energy-efficient system and No. 1 on the Green500 is the DGX SaturnV Volta system, a NVIDIA system installed at NVIDIA, USA. It achieve
15.1 GFlops/Watt power efficiency. It is on position 469 in the TOP500.
They are followed on No 3 by Summit at the Oak Ridge National Laboratory (ORNL) in Tennessee. It achieved
14.7 gigaflops/watt and is listed at number one in the TOP500.
The Shoubu system B, a ZettaScaler-2.2 system at the Advanced Center for Computing and Communication, RIKEN, Japan was decommissioned March 2019 and was removed from the TOP500 list following the TOP500 rules.
The Top500 list now includes the High-Performance Conjugate Gradient (HPCG) Benchmark results.
The two DOE systems Summit at ORNL and Sierra at LLNL grabbed the first 2 positions on the HPCG benchmark.
Summit achieved 2.93 HPCG-Pflop/s and Sierra 1.80 HPCG-Pflop/s.
They are followed by the Fujitsu’s K computer, which is ranked #20 in the overall
About the TOP500 List
The first version of what became today’s TOP500 list started as an exercise for a small conference in
Germany in June 1993. Out of curiosity, the authors decided to revisit the list in November 1993 to see how
things had changed. About that time they realized they might be onto something and decided to continue compiling
the list, which is now a much-anticipated, much-watched and much-debated twice-yearly event.
Corrections: The Shoubu system was removed from the TOP500 list after the TOP500 team was notified it was decommissioned and is no longer the most energy efficient system on the TOP500 list