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Primeur weekly 2016-07-04

Special

European Commission reorganisation affects supercomputing and e-Infrastructures ...

Focus

The next flagship supercomputer in Japan will be the "post K" with a CPU based on ARM V8 with HPC extension ...

Crowd computing

Book about volunteer computing released ...

Quantum computing

New, better way to build circuits for world's first useful quantum computers ...

Focus on Europe

ISC 2016 breaks record with attendance and programme in Frankfurt ...

PRACE Council elects new leadership ...

PRACE launches Fourth Call for Applications under SHAPE ...

International Data Corporation lauds innovations in supercomputing with Innovation Excellence Awards ...

PRACE looks back on successful ISC 2016 Conference in Frankfurt ...

Hardware

New age of computing launched at the University of Melbourne ...

Computing density of scalable energy-efficient RSC Tornado solution with the newest Intel Xeon Phi processor has increased by 2 times to 528 Teraflops per cabinet ...

CFMS selects Cray for next generation HPC platform ...

Lawrence Livermore National Laboratory dedicates new supercomputer facility ...

Applications

Supercomputers on the trail of dark matter ...

New Quantum Mechanics algorithm fast on GPU desktop, not like older algorithms that need a supercomputer ...

Seeds of supermassive black holes could be revealed by gravitational waves ...

U.S. Department of Veterans Affairs enlists IBM's Watson in the war on cancer ...

New ocean current simulations alter view of climate change impacts ...

Computer simulations help scientists glimpse why life can't happen without water ...

Nine University of Wyoming projects awarded summer use of supercomputer in Cheyenne ...

TOP500

MSU supercomputer recognized for power and energy efficiency ...

DDN increases its TOP500 HPC leadership to an unprecedented 70 percent of global supercomputing centres ...

The Cloud

Oracle announces Pfizer's Selection of Oracle Cloud for clinical data management and trial management across its clinical trial portfolio ...

IBM unveils new Bluemix OpenWhisk tools to speed development of IoT apps on IBM Cloud ...

Oracle brings SPARC to the Cloud ...

New Quantum Mechanics algorithm fast on GPU desktop, not like older algorithms that need a supercomputer

28 Jun 2016 Moscow - A group of physicists from the Skobeltsyn Institute of Nuclear Physics, the Lomonosov Moscow State University, has learned to use a personal computer for calculations of complex equations of quantum mechanics, usually solved with help of supercomputers. This PC does the job much faster. An article about the results of the work has been published in the journalComputer Physics Communications.

Senior researchers Vladimir Pomerantcev and Olga Rubtsova, working under the guidance of Professor Vladimir Kukulin (SINP MSU) were able to use on an ordinary desktop PC with GPU to solve complicated integral equations of quantum mechanics - previously solved only with the powerful, expensive supercomputers. According to Vladimir Kukulin, personal computer does the job much faster: in 15 minutes it is doing the work requiring normally 2-3 days of the supercomputer time.

The equations in question were formulated in the 60s by the Russian mathematician Ludwig Faddeev. The equations describe the scattering of a few quantum particles, i.e., represent a quantum mechanical analogue of the Newtonian theory of the three body systems. As the result, the whole field of quantum mechanics called "physics of few-body systems" appeared soon after this.

This area poses a great interest to scientists engaged in quantum mechanics, nuclear and atomic physics and the theory of scattering. For several decades after the pioneering work of Ludwig Faddeev one of their main purposes was to learn to solve these complicated equations. However, due to the incredible complexity of the calculations in the case of fully realistic interactions between a system's particles stood out of the researchers' reach for a long time, until the supercomputers appeared.

The situation changed dramatically after the group of SINP decided to use one of the new Nvidia GPs designed for use in game consoles on their personal computer. According to one of the authors Vladimir Kukulin, Head of Laboratory of Nuclear Theory, the processor was not the most expensive, of those that you can buy for $ 300-500.

The main problem in solving the scattering equations of multiple quantum particles was the calculation of the integral kernel - a huge two-dimensional table, consisting of tens or hundreds of thousands of rows and columns, with each element of such a huge matrix being the result of extremely complex calculations. But this table appeared to look like a monitor screen with tens of billions of pixels, and with a good GPU it was quite possible to calculate all of these. Using the software developed in Nvidia and having written their own programmes, the researchers split their calculations on the many thousands of streams and were able to solve the problem brilliantly.

'We reached the speed we couldn't even dream of", Vladimir Kukulin stated. "The programme computes 260 million of complex double integrals on a desktop computer within three seconds only. No comparison with supercomputers. My colleague from the University of Bochum in Germany - recently deceased, mournfully, whose lab did the same, carried out the calculations by one of the largest supercomputers in Germany with the famous blue gene architecture that is actually very expensive. And what his group is seeking for two or three days, we do in 15 minutes without spending a dime."

The most amazing thing is that the desired quality of graphics processors and a huge amount of software to them exist for ten years already, but no one used them for such calculations, preferring supercomputers. Anyway, our physicists surprised their Western counterparts pretty much.

"This work, in our opinion, opens up completely new ways to analyze nuclear and resonance chemical reactions", stated Vladimir Kukulin. "It can also be very useful for solving a large number of computing tasks in plasma physics, electrodynamics, geophysics, medicine and many other areas of science. We want to organize a kind of training course, where researchers from various scientific areas of peripheral universities that do not have access to supercomputers could learn to do on their PCs the same thing that we do."

The paper is titled " Fast GPU-based calculations in few-body quantum scattering ".
Source: Lomonosov Moscow State University

Back to Table of contents

Primeur weekly 2016-07-04

Special

European Commission reorganisation affects supercomputing and e-Infrastructures ...

Focus

The next flagship supercomputer in Japan will be the "post K" with a CPU based on ARM V8 with HPC extension ...

Crowd computing

Book about volunteer computing released ...

Quantum computing

New, better way to build circuits for world's first useful quantum computers ...

Focus on Europe

ISC 2016 breaks record with attendance and programme in Frankfurt ...

PRACE Council elects new leadership ...

PRACE launches Fourth Call for Applications under SHAPE ...

International Data Corporation lauds innovations in supercomputing with Innovation Excellence Awards ...

PRACE looks back on successful ISC 2016 Conference in Frankfurt ...

Hardware

New age of computing launched at the University of Melbourne ...

Computing density of scalable energy-efficient RSC Tornado solution with the newest Intel Xeon Phi processor has increased by 2 times to 528 Teraflops per cabinet ...

CFMS selects Cray for next generation HPC platform ...

Lawrence Livermore National Laboratory dedicates new supercomputer facility ...

Applications

Supercomputers on the trail of dark matter ...

New Quantum Mechanics algorithm fast on GPU desktop, not like older algorithms that need a supercomputer ...

Seeds of supermassive black holes could be revealed by gravitational waves ...

U.S. Department of Veterans Affairs enlists IBM's Watson in the war on cancer ...

New ocean current simulations alter view of climate change impacts ...

Computer simulations help scientists glimpse why life can't happen without water ...

Nine University of Wyoming projects awarded summer use of supercomputer in Cheyenne ...

TOP500

MSU supercomputer recognized for power and energy efficiency ...

DDN increases its TOP500 HPC leadership to an unprecedented 70 percent of global supercomputing centres ...

The Cloud

Oracle announces Pfizer's Selection of Oracle Cloud for clinical data management and trial management across its clinical trial portfolio ...

IBM unveils new Bluemix OpenWhisk tools to speed development of IoT apps on IBM Cloud ...

Oracle brings SPARC to the Cloud ...