25 November 2019

TOP500 is a ranking of computer systems that is published twice a year by experts at the NERSC/ Lawrence Berkeley National Laboratory, USA, the University of Tennessee Knoxville, USA, and the University of Mannheim, Germany. The benchmark for ranking is Linpack, and ranks systems by their ability to solve linear equations. The recently published 54th edition shows that world of supercomputing is still dominated by China and the USA. The number of Top 500 systems located in China is now 227, eight more than six months ago. Although the number of US systems is only 118, American computers are significantly more powerful and account for over a third of aggregate performance with China in second place.

Third place for number of systems goes to Japan with 29, followed by France with 18, Germany 16, Netherlands 15, Ireland 14, all Lenovo C1040, and the UK 11.

The top five systems are:

  1. Summit, IBM/DOE/SC/Oak Ridge National Laboratory, USA
  2. Sierra, IBM/NVIDIA/Mellanox/DOE/NNSA/LLNL, USA
  3. Sunway TaihuLight, National Supercomputing Center in Wuxi, China
  4. Tianhe-2A, National Super Computer Center in Guangzhou, China
  5. Frontera, Texas Advanced Computing Center/University of Texas, USA.

Frontera is also the top academic system. The GREEN500 list, which measures energy efficiency, is led by the A64FX Prototype, Fujitsu, Numazu Plant, Japan.

TOP 500

IREG Initiatives

The purpose of "IREG Inventory of International Rankings" is to collect and make available on the IREG Observatory on Academic Ranking and Excellence website information on the current state and scope of this important group of rankings.


National and international academic rankings play ever increasing role as a barometer of quality of higher education institutions. The purpose of "IREG Inventory of National Rankings" is to collect and make available on the IREG Observatory website information on the current state and scope of this important group of rankings.


With the fast development of science and technology, as well as the internationalization of scientific activities, international academic awards have been more and more popular and influential. Numerous international academic awards have been established to provide individuals with incentives and motivation for new academic work and to reward past excellent academic accomplishments.


The purpose of the IREG Ranking Audit, conducted by independent experts, is to verify and attest that ranking under review is done professionally, with a transparent methodology, observes good practices and responds to a need for relevant information of various stakeholders, in particular students, higher education institutions, employers and policy makers.


The purpose of the IREG Guidelines for Stakeholders of Academic Rankings is to provide recommendations for appropriate interpretations, uses and applications of rankings by potential interested parties, including students and parents, institutions of higher education, policymakers, quality assurance and funding organizations, employers and the media. Specific recommendations have been formulated for each group of stakeholders.


News from IREG Members

Lobachevsky State University of Nizhni Novgorod listed in the global ranking of the world's best university websites Webometrics

According to the recent results of the Webometrics Ranking of World Universities, Lobachevsky University now ranks 1383rd in the world and 67th among university websites in Eastern and Central Europe.

QS organize Reimagine Education conference on 8-10 December 2019 in London

Reimagine Education is the global conference for those interested in pedagogical innovation, cutting edge education technology, and means by which graduate employability can be nurtured.

Yeditepe University in Turkey organize the YIRCoF’19 conference

The Yeditepe International Research Conference on Foresught and Futures will take place at Yeditepe University on 29-30 November, 2019 in Istanbul, Turkey. The invited speaker are – Roberto Poli, UNESCO Chair in Anticipatory Systems from University of Trento, Italy.

Members area

© 2018 IREG Observatory on Academic Ranking and Excellence