Bolshoi: Largest Computer Simulation Of The Universe
The Bolshoi simulation made use of the Pleiades supercomputer at the NASA Advanced Supercomputing facility (NAS) at NASA Ames Research Center. It is the most accurate cosmological simulation of the evolution of the large-scale structure of the universe yet completed.
(The Bolshoi Simulation)
Visualization of the dark matter in 1/1000 of the gigantic Bolshoi cosmological simulation, zooming in on a region centered on the dark matter halo of a very large cluster of galaxies. Visualized by Chris Henze, NASA Ames Research Center.
The starting point for Bolshoi was the best ground- and space-based observations, including NASA’s long-running and highly successful WMAP Explorer mission that has been mapping the light of the Big Bang in the entire sky. One of the world's fastest supercomputers then calculated the evolution of a typical region of the universe a billion light years across. The Bolshoi simulation took 6 million cpu hours to run on the Pleiades supercomputer—recently ranked as seventh fastest of the world’s top 500 supercomputers—at NASA Ames Research Center.
Due to significant advances in the measurement of the cosmological parameters and in the power and speed of supercomputers and simulation codes over the past half-decade since the Millennium cosmological simulation, the Bolshoi simulation is substantially better in resolution and accuracy. The Principal Investigators of the Bolshoi project, Anatoly Klypin and Joel Primack, and their colleagues anticipate that Bolshoi will become cosmology’s new benchmark simulation for making theoretical predictions that can then be tested against data gathered by observational astronomers.
Fans of the marvelous Stanislaw Lem recall that in his 1965 novel The Cyberiad: Fables for the Cybernetic Age, he wrote about a vast computing device called the Gnostotron:
"...To put it simply, then, all we have to do is construct a digital device, a computer capable of producing an informational model of absolutely everything in existence. Properly programmed, it will provide us with an exact simulation of the Highest Possible Level of Development, which we can then question and thereby obtain the Ultimate Answers!"
As it turned out, this digital device was none other than the famed Gnostotron conceived by Chlorian Theoreticus the Proph just before his lamentable demise, a machine able literally to contain the Universe Itself within its innumerable memory banks.
(Read more about Lem's Gnostotron)
Is there anything bigger than the Bolshoi (большой means "big" in Russian) simulation? A second simulation called BigBolshoi or MultiDark, was run with the same number of particles, but in a volume 4 billion light years across, thus 64 times larger.
Amusingly, Stanislaw Lem also conceived of an even larger computer than the Gnostotron - the Gigagnostotron!
From Bolshoi Cosmological Simulations.
Scroll down for more stories in the same category. (Story submitted 9/30/2011)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
String Art Courtesy Of Robot Artist
The number of different ways to span a thread between a larger number of hooks is astronomical.
Tetraplegics Dominate Avatar Races
Well, just speaking brain-to-computer...
IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...' - Stanislaw Lem, 1965.
Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.' - Isaac Asimov, 1941.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Soon, Your Tesla Will Follow You Like A Pet
'... follow him as faithfully as a well-trained hound.'
Chinese Watrix Gait Recognition Watching You Always
'... those pesky gait-recognition cameras.'
FlexPai Foldable Phone By Royole
'...A paper thin polycarbon screen unfurled.'
Oh Yes, We're Building The Rotating Tower In Dubai
'Give me an old-fashioned tetragon on a central pivot every time.'
Bioreactor Helps Legless Frogs Get Their Jump Back
'An alien drug... Used by an insect race... It can repair bones and organs. It can grow new tissue."
Xinhua AI Anchor Puts CGI Face To Automated News
'...a congeries of software agents.'
Wirewax Watching You Watch, Adjusting Your Experience
'He adjusted the n, the r and b knobs, and hopefully anticipated a turn for the better...'
LawGeex AI Beats 20 Top Lawyers
'The Law Society has strict rules on the use of pseudo-intelligent software - terrified of putting... its members out of work.'
ROAM Robotics Skiing Exoskeleton
'The real genius in the design is that you don't have to control the suit; you just wear it...'
MIT Headset Lets You Communicate Without Speaking
'The subvocal read nerve signals, letting her enter words by just beginning to will them...'
Exploring Oceans Across The Solar System
'Black liquid flashed past the turbot’s infrared eyes.'
SWEEPER Robot Peter Piper Picking Peppers
'... little machines, that went from plant to plant, apparently on caterpillar tracks, cutting off the ripe fruit.'
Oil from Algae - Can It Be Done?
'We dump everything that's waste into the tanks, pump the oil off the top.'
Moving Whole Planets, Revisited
There was a lot of work done on this idea over the years.
Disney Keeps Backups Of Star Wars Franchise Actors
'She is a personality-construct, a congeries of software agents...'
Farming In Space Starts With Mycorrhiza
'The inner leaves were beginning to curl faster than the outer leaves.'
More SF in the News Stories
More Beyond Technovelgy science news stories