A supercomputer will help create a 3D map of the universe

On May 27, 2021, Nvidia announced the launch of the Perlmutter supercomputer. According to the computer microprocessor company with artificial intelligence (IA) could solve some basic astrophysical questions related to black matter. To realize this ambition, Perlmutter will begin by co-creating the largest 3D map of the universe ever.

What the researchers call Dark matter embodies a key unknown in physics models. according to art, the observable universe matter, stars, galaxies … represent only 4% of the universe. The The rest of the universe will consist of this dark matter, which no tool has detected before. Many researchers are currently working on discovering the nature of this unknown issue that He will be responsible for accelerating the expansion of the universe.

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supercomputer It will process the data The Dark Energy Spectroscopic Instrument (DESI) captures the light of tens of millions of galaxies. Where the difference in Perlmutter with current processing techniques occurs is in the speed of the computation.

“Researchers need the speed of the Perlmutter GPUs to capture dozens of exposures overnight so they know where to point DESI the next night. Preparing a year’s data for publication It may take weeks or months on current systems, but Perlmutter You must help them accomplish this task in some days », explains Dion Harris, director of product marketing at Nvidia.

to me VentureBeat, the Perlmutter supercomputer consists of 1,536 nodes each with a 64-core Epyc 7763 processor and four NVIDIA A100 GPUs. Later in the year, 3,072 nodes are scheduled to be added, each containing two Epyc 7763 chips.

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The supercomputer is named after the Nobel Prize-winning cosmologist Saul Perlmutter. It was implemented with the National Energy Research Scientific Computing Center (NERSC), a research center attached to Lawrence Berkeley National Laboratory, a US national laboratory. About 7,000 researchers at NERSC will be able to use a computer in their work. Perlmutter will work too On atomic interactions, for a climate-related task for Promote the emergence of clean energies Like biofuels.

Frank Mccarthy

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