Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Earthquake researchers finalists for supercomputing prize

19.11.2018

Computer scientists use artificial intelligence to boost an earthquake physics simulator

A team of researchers from the Earthquake Research Institute, Department of Civil Engineering and Information Technology Center at the University of Tokyo, and the RIKEN Center for Computational Science and RIKEN Center for Advanced Intelligence Project in Japan were finalists for the coveted Gordon Bell Prize for outstanding achievements in high-performance computing.


Various layers of the earth plus buildings on top of and within them behave differently during an earthquake. Interactions between these layers expound complexity of earthquake models.

Credit: 2018 Earthquake Research Institute, The University of Tokyo.

Usage Restrictions: Related to this news release


The Summit supercomputer has 9,216 processors manufactured by IBM and 27,648 graphic processing units produced by Nvidia, advanced versions of those found in gaming PCs.

Credit: 2018 Carlos Jones/ORNL.

Usage Restrictions: Related to this news release

Tsuyoshi Ichimura together with Kohei Fujita, Takuma Yamaguchi, Kengo Nakajima, Muneo Hori and Lalith Maddegedara were praised for their simulation of earthquake physics in complex urban environments.

Earthquakes are a huge problem in many places around the world including, famously, Japan. They can be devastating and Ichimura's team use coding prowess with the power of supercomputers to generate models for disaster mitigation and response.

Realistic earthquake simulations are difficult due to wide-ranging physical phenomena operating at different scales. This complex problem led the team to devise novel strategies involving artificial intelligence (AI) to model earthquakes in urban centers with a high degree of accuracy.

"In the field of computer science there is a big gap between AI and physics-based simulations," said Ichimura. "We felt there was scope to enhance performance of our simulation by bridging this gap. And that feeling turned out to be true."

Their mixed-methodology approach utilized AI and varying degrees of mathematical precision to create a completely new code for the simulation - with unprecedented efficiency. This new code achieved an almost fourfold increase in speed over the team's previous incarnation.

Traditionally, physical simulations require great numerical accuracy to obtain results that correspond well with observed reality. To achieve this precision requires a lot of computing time, which consumes a great amount of power. What makes this new method unique is how the AI component of the system learns where precision is most useful and where it can be reduced without sacrificing overall accuracy, so the simulation can run in less time than if it lacked the AI.

The team's code ran on the state-of-the-art Summit supercomputer at the Oak Ridge National Laboratory in the U.S. The researchers made this code adaptable for other uses and scalable for use on different computer systems such as the K computer at RIKEN and Piz Daint at the Swiss National Supercomputing Centre.

"Our code is an entirely new kind of problem solver, which is a frontier in this field," concludes Ichimura. "We expect this new code will find its way into a new generation of physical simulators. We hope this helps people better understand, predict and prepare for earthquakes."

###

Paper details

Tsuyoshi Ichimura, Kohei Fujita, Takuma Yamaguchi, Akira Naruse, Jack C. Wells, Thomas C. Schulthess, Tjerk P. Straatsma, Christopher J. Zimmer, Maxime Martinasso, Kengo Nakajima, Muneo Hori, Lalith Maddegedara, A Fast Scalable Implicit Solver for Nonlinear Time-Evolution Earthquake City Problem on Low-Ordered Unstructured Finite Elements with Artificial Intelligence and Transprecision Computing, SC'18 Proceedings of the International Conference for High Performance Computing, Networking, Storage, and Analysis, Article No. 49, 2018.

Support and funding

These results were obtained using the Summit supercomputer at Oak Ridge Leadership Computing Facility, a U.S. Department of Energy, Office of Science user facility at Oak Ridge National Laboratory, Piz Daint at Swiss National Supercomputing Centre (CSCS) and K computer at RIKEN Center for Computational Science (R-CCS, proposal numbers: hp170249, hp180217). The research received support from Post K computer project (Priority Issue 3 - Development of integrated simulation systems for hazards and disasters induced by earthquakes and tsunamis) and Japan Society for the Promotion of Science (18H05239, 26249066, 25220908, and 17K14719).

Related links

Earthquake Research Institute - http://www.eri.u-tokyo.ac.jp/en/
Graduate School of Engineering - http://www.t.u-tokyo.ac.jp/soee/index.html
Department of Civil Engineering - http://www.civil.t.u-tokyo.ac.jp/en/

Researcher contact

Associate Professor Tsuyoshi Ichimura
Earthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, JAPAN
Tel: +81-3-5841-5692
Email: ichimura@eri.u-tokyo.ac.jp

Press contact

Mr. Rohan Mehra
Division for Strategic Public Relations, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 133-8654, JAPAN
Tel: +81-3-5841-0876
Email: press-releases.adm@mail.u-tokyo.ac.jp

About the University of Tokyo

The University of Tokyo is Japan's leading university and one of the world's top research universities. The vast research output of some 6,000 researchers is published in the world's top journals across the arts and sciences. Our vibrant student body of around 15,000 undergraduate and 15,000 graduate students includes over 2,000 international students. Find out more at http://www.u-tokyo.ac.jp/en/ or follow us on Twitter at @UTokyo_News_en.

Media Contact

Tsuyoshi Ichimura
ichimura@eri.u-tokyo.ac.jp
81-358-415-692

 @UTokyo_News_en

http://www.u-tokyo.ac.jp 

Tsuyoshi Ichimura | EurekAlert!

Further reports about: Computing High Performance Computing Supercomputing earthquake

More articles from Information Technology:

nachricht Researchers build transistor-like gate for quantum information processing -- with qudits
17.07.2019 | Purdue University

nachricht New DFG Research Group "Metrology for THz Communications"
17.07.2019 | Technische Universität Braunschweig

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Megakaryocytes act as „bouncers“ restraining cell migration in the bone marrow

Scientists at the University Würzburg and University Hospital of Würzburg found that megakaryocytes act as “bouncers” and thus modulate bone marrow niche properties and cell migration dynamics. The study was published in July in the Journal “Haematologica”.

Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow. The bone marrow produces all types of blood cells: red...

Im Focus: Artificial neural network resolves puzzles from condensed matter physics: Which is the perfect quantum theory?

For some phenomena in quantum many-body physics several competing theories exist. But which of them describes a quantum phenomenon best? A team of researchers from the Technical University of Munich (TUM) and Harvard University in the United States has now successfully deployed artificial neural networks for image analysis of quantum systems.

Is that a dog or a cat? Such a classification is a prime example of machine learning: artificial neural networks can be trained to analyze images by looking...

Im Focus: Extremely hard yet metallically conductive: Bayreuth researchers develop novel material with high-tech prospects

An international research group led by scientists from the University of Bayreuth has produced a previously unknown material: Rhenium nitride pernitride. Thanks to combining properties that were previously considered incompatible, it looks set to become highly attractive for technological applications. Indeed, it is a super-hard metallic conductor that can withstand extremely high pressures like a diamond. A process now developed in Bayreuth opens up the possibility of producing rhenium nitride pernitride and other technologically interesting materials in sufficiently large quantity for their properties characterisation. The new findings are presented in "Nature Communications".

The possibility of finding a compound that was metallically conductive, super-hard, and ultra-incompressible was long considered unlikely in science. It was...

Im Focus: Modelling leads to the optimum size for platinum fuel cell catalysts: Activity of fuel cell catalysts doubled

An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today.

Fuel cells may well replace batteries as the power source for electric cars. They consume hydrogen, a gas which could be produced for example using surplus...

Im Focus: The secret of mushroom colors

Mushrooms: Darker fruiting bodies in cold climates

The fly agaric with its red hat is perhaps the most evocative of the diverse and variously colored mushroom species. Hitherto, the purpose of these colors was...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on UV LED Technologies & Applications – ICULTA 2020 | Call for Abstracts

24.06.2019 | Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

 
Latest News

Tracking down climate change with radar eyes

17.07.2019 | Earth Sciences

Researchers build transistor-like gate for quantum information processing -- with qudits

17.07.2019 | Information Technology

A new material for the battery of the future, made in UCLouvain

17.07.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>