Wednesday, November 30, 2016

Russian scientists advocate a computer to remedy complicated troubles tens of instances quicker than with huge supercomputers

a set of physicists from the Skobeltsyn Institute of Nuclear Physics, the Lomonosov Moscow nation university, has found out to apply a private pc for calculations of complex equations of quantum mechanics, generally solved with assist of supercomputers. This laptop does the task a whole lot faster. an editorial approximately the effects of the paintings has been published in the journal computer Physics Communications.
Senior researchers Vladimir Pomerantcev and Olga Rubtsova, operating underneath the steering of Professor Vladimir Kukulin (SINP MSU), were capable of use on an ordinary desktop computer with GPU to remedy complex fundamental equations of quantum mechanics -- formerly solved handiest with the effective, costly supercomputers. in step with Vladimir Kukulin, the personal laptop does the job a good deal faster: in 15 mins it is doing the work requiring commonly 2-3 days of the supercomputer time.
The equations in query were formulated in the '60s by the Russian mathematician Ludwig Faddeev. The equations describe the scattering of a few quantum particles, i.e., constitute a quantum mechanical analog of the Newtonian principle of the three frame structures. because the end result, the complete subject of quantum mechanics known as "physics of few-body systems" appeared quickly after this.
This region poses a exceptional interest to scientists engaged in quantum mechanics, nuclear and atomic physics and the theory of scattering. For several many years after the pioneering work of Faddeev one of their major functions became to learn how to remedy these complicated equations. however, because of the fantastic complexity of the calculations within the case of absolutely sensible interactions among a gadget's debris stood out of the researchers' attain for a long time, until the supercomputers appeared.
The state of affairs modified dramatically after the organization of SINP determined to use one of the new Nvidia GPs designed for use in sport consoles on their personal computer. consistent with one of the authors Vladimir Kukulin, Head of Laboratory of Nuclear principle, the processor was now not the most steeply-priced, of those that you may purchase for $300-500.
the primary trouble in solving the scattering equations of multiple quantum particles become the calculation of the vital kernel -- a large -dimensional table, which includes tens or hundreds of lots of rows and columns, with every element of one of these large matrix being the end result of extraordinarily complex calculations. however this table seemed to look like a display display screen with tens of billions of pixels, and with an amazing GPU it become quite possible to calculate all of these. the usage of the software advanced in Nvidia and having written their personal programs, the researchers split their calculations on the various hundreds of streams and had been able to clear up the problem brilliantly.
"We reached the rate we couldn't even dream of," Vladimir Kukulin said. "the program computes 260 million of complex double integrals on a computing device laptop inside three seconds simplest. No assessment with supercomputers! My colleague from the university of Bochum in Germany (lately deceased, mournfully), whose lab did the identical, executed the calculations with the aid of one in every of the largest supercomputers in Germany with the famous blue gene structure this is simply very luxurious. And what his institution is searching for for two or three days, we do in 15 minutes free of charge."
The most superb factor is that the preferred first-class of images processors and a huge amount of software to them exist for ten years already, but no person used them for such calculations, who prefer supercomputers. anyway, our physicists amazed their Western opposite numbers quite a great deal.
"This paintings, in our opinion, opens up absolutely new ways to investigate nuclear and resonance chemical reactions," says Vladimir Kukulin. "it is able to additionally be very beneficial for fixing a huge range of computing responsibilities in plasma physics, electrodynamics, geophysics, medication and lots of other regions of technological know-how. We need to prepare a form of training path, wherein researchers from diverse scientific regions of peripheral universities that don't have get right of entry to to supercomputers may want to learn to do on their computers the equal factor that we do."

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