BSC Contributes to Gaia with Nearly 58M Hours of MareNostrum and Programming Models

June 13, 2022

June 13, 2022 — The largest collection of astrophysical data for stars of the Milky Way, a catalog of binary stars that surpasses all the scientific work from the past two centuries and the first low-resolution and radial velocity spectroscopy studies carried out to date: these are some of the scientific findings of the third catalog release of the Gaia mission, published by the European Space Agency (ESA) on Monday, June 13.

Gaia’s chemical map of the Milky Way galaxy.

Since its beginning, Gaia has counted on the participation of a team of astronomers and engineers of the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC), led by researchers Carme Jordi, Xavier Luri and Francesca Figueras, from the Department of Quantum Physics and Astrophysics (UB-ICCUB-IEEC).

The Barcelona Supercomputing Center-Centro Nacional de Supercomputación (BSC-CNS) has contributed to Gaia since its beginning, providing millions of hours of supercomputing in the MareNostrum supercomputer and programming models.

Specifically, since the beginning of the project, BSC has contributed almost 58 million hours, and for this third release of data, it has contributed almost 33 million hours.

On the other hand, the PyCOMPSs programming model and the dislib machine learning library developed by the BSC’s Workflows and Distributed Computing group have been used in the software developed by the Gaia team to search for new open star clusters.

The BSC user support team has collaborated in data storage and transfer to other processing centers involved in the project.

This new data release, which includes a total of 1.8 billion stars of the Milky Way, provides the international astronomic collective with an unprecedented perspective of stellar characteristics and their life cycle, as well as the structure and evolution of the Galaxy. The published data of the Gaia Data Release 3 (DR3) were collected during thirty-four months, between July 25, 2014 and May 28, 2017.

Since the launch of Gaia in 2013, data sets have been released in 2016 and 2018, as well as a subgroup of the third data set in 2020. For the moment, the Gaia mission exceeds the 2,850 days of sky observation, it has collected 100 terabytes of data and has documented 200-billion-star transits in its focal plane.

Gaia Mission: the most accurate map of our galaxy

Gaia is the ESA’s emblematic mission launched in December 2013 to create the most accurate and complete multi-dimensional map of our galaxy —the Milky Way—, with data on the position, speed and direction of motion, brightness, temperature and composition of nearly two billion galactic and extragalactic objects. This information will allow astronomers to rebuild the past and future evolution of the Galaxy over billions of years.

The largest low-resolution spectroscopy study ever

The Gaia satellite, located 1.5 million away from the Earth in the opposite direction to the Sun in the Lagrange L2 point, has surveyed the sky through two telescopes which have provided scientific data to calculate the position, distance, speeds and physical features of nearly 2 billion stars.

One of the first scientific indications of the dataset now published are the light spectra of 220 million stars, which can be used to determine brightness, temperature, mass and chemical compositions with precision. As noted by Professor Carme Jordi, “for the first time, we can separate in detail the light we receive from the stars and that from other objects observed by Gaia”. The expert adds that “this separation provides us with knowledge on the physical properties such as temperature, brightness and chemical composition, which is essential information for determining the age of the stars and deduce their origins”.

Gaia DR3 includes the radial velocity of 33 million stars, a volume of information five times higher to the one the second data set of the mission provided in 2018. The radial velocity is the speed to which the objects distance from us or get closer, a parameter that is brought by the third dimension of speed in the Gaia map of our galaxy.

As Professor Xavier Luri says, “the number of measurements is, by far, larger than the total measures of radial velocity conducted from Earth in all history. This is already a radical change in data availability”. Luri also notes that “having the third motion component (the other two are provided by astrometry, through the own motions measured by Gaia) enables us to make a complete analysis of the kinematics of the stars. Overall, the volume, quality and completeness of data opens new perspectives for understanding the kinematics and dynamics of our galaxy”.

The largest catalog of binary stars to date

Another novelty of the dataset is that it has the largest catalog of binary stars of the Milky Way to date. With positions, distances, orbits and masses of more than 800,000 systems, this catalog is key for understanding the stellar evolution. Moreover, Gaia DR3 has essential information for studying the origins of the Solar System. Specifically, data on 156,000 asteroids of this solar system, information of great precision which combines compositions and orbits.

The great volume of data Gaia offers to the international astronomic collective provides unprecedented views on the understanding of the characteristics of the stars and their life cycle, as well as on the study of the structure and evolution of the Milky Way. The data now presented include information on the stars with a brightness which varies over time, in addition to objects from the Solar System —asteroids and planetary moons— and galaxies and quasars beyond the Galaxy in which we find ourselves.

“As seen in previous data releases, the most unexpected and surprising findings will arrive during the following weeks, as soon as we distinguish the secrets these data have; these data have been open to the professional community and amateurs since the beginning”, notes lecturer Francesca Figueras. “We are watching millions of eclipsing binary stars moving and beating, as well as thousands of pulsating cepheids, stellar populations that trace the distance of the universe. We also capture the non-radial pulsations of variable stars in rapid rotation, small tsunamis in its surface. These are only some examples, I cannot imagine the euphoria and passion Henrietta Swan Leavitt would feel now”.

A scientific collaboration since the beginning of the space mission

The role of the UB-ICCUB-IEEC team focused on the scientific and technological design of the project, the development of the data processing system and on the production of simulated data. A part of the software for data processing sent by the satellite has been developed by the UB-ICCUB-IEEC team and is carried out by the MareNostrum computer, from the Barcelona Supercomputing Center-Centro Nacional de Supercomputación (BSC-CNS).

The team members work on the scientific exploitation of data, in fields such as the study of the spiral structure of the Galaxy; identification of past interactions of the Milky Way with near galaxies, which are essential for knowing its evolution to present times; open clusters, including the identification of unknown clusters to date; and the study of the Magellanic Clouds, two small galaxies orbiting in our galaxy.

“With each new release, the data accuracy and its volume improve. In the upcoming years, we will have, for instance, 150 million high-resolution spectra with more accurate distance and motions. The results we will obtain from the analysis of these data are unpredictable, but they will allow us, among other things, to better understand the evolution of the Galaxy, or its structure”, notes lecturer Eduard Massana.

The Gaia team at ICCUB (UB-IEEC), led by Professor Jordi Torra at the beginning of the mission, was awarded in 2013 the Barcelona City Award in the category of Experimental Sciences and Technology. Some of its members are part of the Gaia Science Team (GST), ESA’s scientific advisory body. Fuel consumption leads to the prediction that Gaia is expected to operate until 2025, and that the final catalog will not come out before 2030.


Source: Barcelona Supercomputing Center

Subscribe to HPCwire's Weekly Update!

Be the most informed person in the room! Stay ahead of the tech trends with industy updates delivered to you every week!

SC22 Unveils ACM Gordon Bell Prize Finalists

August 12, 2022

Courtesy of the schedule for the SC22 conference, we now have our first glimpse at the finalists for this year’s coveted Gordon Bell Prize. The Gordon Bell Prize, of course, comes with an award of $10,000 courtesy of H Read more…

Q&A with ORNL’s Bronson Messer, an HPCwire Person to Watch in 2022

August 12, 2022

HPCwire presents our interview with Bronson Messer, distinguished scientist and director of Science at the Oak Ridge Leadership Computing Facility (OLCF), ORNL, and an HPCwire 2022 Person to Watch. Messer recaps ORNL's journey to exascale and sheds light on how all the pieces line up to support the all-important science. Also covered are the role... Read more…

TACC Simulations Probe the First Days of Stars, Black Holes

August 12, 2022

The stunning images produced by the James Webb Space Telescope and recent supercomputer-enabled black hole imaging efforts have brought the early days of the universe quite literally into sharp focus. Researchers from th Read more…

Google Program to Free Chips Boosts University Semiconductor Design

August 11, 2022

A Google-led program to design and manufacture chips for free is becoming popular among researchers and computer enthusiasts. The search giant's open silicon program is providing the tools for anyone to design chips, which then get manufactured. Google foots the entire bill, from a chip's conception to delivery of the final product in a user's hand. Google's... Read more…

Argonne Deploys Polaris Supercomputer for Science in Advance of Aurora

August 9, 2022

Argonne National Laboratory has made its newest supercomputer, Polaris, available for scientific research. The system, which ranked 14th on the most recent Top500 list, is serving as a testbed for the exascale Aurora system slated for delivery in the coming months. The HPE-built Polaris system (pictured in the header) consists of 560 nodes... Read more…

AWS Solution Channel

Shutterstock 1519171757

Running large-scale CFD fire simulations on AWS for Amazon.com

This post was contributed by Matt Broadfoot, Senior Fire Strategy Manager at Amazon Design and Construction, and Antonio Cennamo ProServe Customer Practice Manager, Colin Bridger Principal HPC GTM Specialist, Grigorios Pikoulas ProServe Strategic Program Leader, Neil Ashton Principal, Computational Engineering Product Strategy, Roberto Medar, ProServe HPC Consultant, Taiwo Abioye ProServe Security Consultant, Talib Mahouari ProServe Engagement Manager at AWS. Read more…

Microsoft/NVIDIA Solution Channel

Shutterstock 1689646429

Gain a Competitive Edge using Cloud-Based, GPU-Accelerated AI KYC Recommender Systems

Financial services organizations face increased competition for customers from technologies such as FinTechs, mobile banking applications, and online payment systems. To meet this challenge, it is important for organizations to have a deep understanding of their customers. Read more…

US CHIPS and Science Act Signed Into Law

August 9, 2022

Just a few days after it was passed in the Senate, the U.S. CHIPS and Science Act has been signed into law by President Biden. In a ceremony today, Biden signed and lauded the ambitious piece of legislation, which over the course of the legislative process broadened to include hundreds of billions in additional science and technology spending. He was flanked by Speaker... Read more…

Q&A with ORNL’s Bronson Messer, an HPCwire Person to Watch in 2022

August 12, 2022

HPCwire presents our interview with Bronson Messer, distinguished scientist and director of Science at the Oak Ridge Leadership Computing Facility (OLCF), ORNL, and an HPCwire 2022 Person to Watch. Messer recaps ORNL's journey to exascale and sheds light on how all the pieces line up to support the all-important science. Also covered are the role... Read more…

Google Program to Free Chips Boosts University Semiconductor Design

August 11, 2022

A Google-led program to design and manufacture chips for free is becoming popular among researchers and computer enthusiasts. The search giant's open silicon program is providing the tools for anyone to design chips, which then get manufactured. Google foots the entire bill, from a chip's conception to delivery of the final product in a user's hand. Google's... Read more…

Argonne Deploys Polaris Supercomputer for Science in Advance of Aurora

August 9, 2022

Argonne National Laboratory has made its newest supercomputer, Polaris, available for scientific research. The system, which ranked 14th on the most recent Top500 list, is serving as a testbed for the exascale Aurora system slated for delivery in the coming months. The HPE-built Polaris system (pictured in the header) consists of 560 nodes... Read more…

US CHIPS and Science Act Signed Into Law

August 9, 2022

Just a few days after it was passed in the Senate, the U.S. CHIPS and Science Act has been signed into law by President Biden. In a ceremony today, Biden signed and lauded the ambitious piece of legislation, which over the course of the legislative process broadened to include hundreds of billions in additional science and technology spending. He was flanked by Speaker... Read more…

12 Midwestern Universities Team to Boost Semiconductor Supply Chain

August 8, 2022

The combined stressors of Covid-19 and the invasion of Ukraine have sent every major nation scrambling to reinforce its mission-critical supply chains – including and in particular the semiconductor supply chain. In the U.S. – which, like much of the world, relies on Asia for its semiconductors – those efforts have taken shape through the recently... Read more…

Quantum Pioneer D-Wave Rings NYSE Bell, Begins Life as Public Company

August 8, 2022

D-Wave Systems, one of the early quantum computing pioneers, has completed its SPAC deal to go public. Its merger with DPCM Capital was completed last Friday, and today, D-Wave management rang the bell on the New York Stock Exchange. It is now trading under two ticker symbols – QBTS and QBTS WS (warrant shares), respectively. Welcome to the public... Read more…

Supercomputer Models Explosives Critical for Nuclear Weapons

August 6, 2022

Lawrence Livermore National Laboratory (LLNL) is one of the laboratories that operates under the auspices of the National Nuclear Security Administration (NNSA), which manages the United States’ stockpile of nuclear weapons. Amid major efforts to modernize that stockpile, LLNL has announced that researchers from its own Energetic Materials Center... Read more…

SEA Changes: How EuroHPC Is Preparing for Exascale

August 5, 2022

Back in June, the EuroHPC Joint Undertaking – which serves as the EU’s concerted supercomputing play – announced its first exascale system: JUPITER, set to be installed by the Jülich Supercomputing Centre (FZJ) in 2023. But EuroHPC has been preparing for the exascale era for a much longer time: eight months... Read more…

Nvidia R&D Chief on How AI is Improving Chip Design

April 18, 2022

Getting a glimpse into Nvidia’s R&D has become a regular feature of the spring GTC conference with Bill Dally, chief scientist and senior vice president of research, providing an overview of Nvidia’s R&D organization and a few details on current priorities. This year, Dally focused mostly on AI tools that Nvidia is both developing and using in-house to improve... Read more…

Royalty-free stock illustration ID: 1919750255

Intel Says UCIe to Outpace PCIe in Speed Race

May 11, 2022

Intel has shared more details on a new interconnect that is the foundation of the company’s long-term plan for x86, Arm and RISC-V architectures to co-exist in a single chip package. The semiconductor company is taking a modular approach to chip design with the option for customers to cram computing blocks such as CPUs, GPUs and AI accelerators inside a single chip package. Read more…

The Final Frontier: US Has Its First Exascale Supercomputer

May 30, 2022

In April 2018, the U.S. Department of Energy announced plans to procure a trio of exascale supercomputers at a total cost of up to $1.8 billion dollars. Over the ensuing four years, many announcements were made, many deadlines were missed, and a pandemic threw the world into disarray. Now, at long last, HPE and Oak Ridge National Laboratory (ORNL) have announced that the first of those... Read more…

US Senate Passes CHIPS Act Temperature Check, but Challenges Linger

July 19, 2022

The U.S. Senate on Tuesday passed a major hurdle that will open up close to $52 billion in grants for the semiconductor industry to boost manufacturing, supply chain and research and development. U.S. senators voted 64-34 in favor of advancing the CHIPS Act, which sets the stage for the final consideration... Read more…

Top500: Exascale Is Officially Here with Debut of Frontier

May 30, 2022

The 59th installment of the Top500 list, issued today from ISC 2022 in Hamburg, Germany, officially marks a new era in supercomputing with the debut of the first-ever exascale system on the list. Frontier, deployed at the Department of Energy’s Oak Ridge National Laboratory, achieved 1.102 exaflops in its fastest High Performance Linpack run, which was completed... Read more…

Newly-Observed Higgs Mode Holds Promise in Quantum Computing

June 8, 2022

The first-ever appearance of a previously undetectable quantum excitation known as the axial Higgs mode – exciting in its own right – also holds promise for developing and manipulating higher temperature quantum materials... Read more…

AMD’s MI300 APUs to Power Exascale El Capitan Supercomputer

June 21, 2022

Additional details of the architecture of the exascale El Capitan supercomputer were disclosed today by Lawrence Livermore National Laboratory’s (LLNL) Terri Read more…

PsiQuantum’s Path to 1 Million Qubits

April 21, 2022

PsiQuantum, founded in 2016 by four researchers with roots at Bristol University, Stanford University, and York University, is one of a few quantum computing startups that’s kept a moderately low PR profile. (That’s if you disregard the roughly $700 million in funding it has attracted.) The main reason is PsiQuantum has eschewed the clamorous public chase for... Read more…

Leading Solution Providers

Contributors

ISC 2022 Booth Video Tours

AMD
AWS
DDN
Dell
Intel
Lenovo
Microsoft
PENGUIN SOLUTIONS

Exclusive Inside Look at First US Exascale Supercomputer

July 1, 2022

HPCwire takes you inside the Frontier datacenter at DOE's Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tenn., for an interview with Frontier Project Direc Read more…

AMD Opens Up Chip Design to the Outside for Custom Future

June 15, 2022

AMD is getting personal with chips as it sets sail to make products more to the liking of its customers. The chipmaker detailed a modular chip future in which customers can mix and match non-AMD processors in a custom chip package. "We are focused on making it easier to implement chips with more flexibility," said Mark Papermaster, chief technology officer at AMD during the analyst day meeting late last week. Read more…

Intel Reiterates Plans to Merge CPU, GPU High-performance Chip Roadmaps

May 31, 2022

Intel reiterated it is well on its way to merging its roadmap of high-performance CPUs and GPUs as it shifts over to newer manufacturing processes and packaging technologies in the coming years. The company is merging the CPU and GPU lineups into a chip (codenamed Falcon Shores) which Intel has dubbed an XPU. Falcon Shores... Read more…

Nvidia, Intel to Power Atos-Built MareNostrum 5 Supercomputer

June 16, 2022

The long-troubled, hotly anticipated MareNostrum 5 supercomputer finally has a vendor: Atos, which will be supplying a system that includes both Nvidia and Inte Read more…

India Launches Petascale ‘PARAM Ganga’ Supercomputer

March 8, 2022

Just a couple of weeks ago, the Indian government promised that it had five HPC systems in the final stages of installation and would launch nine new supercomputers this year. Now, it appears to be making good on that promise: the country’s National Supercomputing Mission (NSM) has announced the deployment of “PARAM Ganga” petascale supercomputer at Indian Institute of Technology (IIT)... Read more…

Is Time Running Out for Compromise on America COMPETES/USICA Act?

June 22, 2022

You may recall that efforts proposed in 2020 to remake the National Science Foundation (Endless Frontier Act) have since expanded and morphed into two gigantic bills, the America COMPETES Act in the U.S. House of Representatives and the U.S. Innovation and Competition Act in the U.S. Senate. So far, efforts to reconcile the two pieces of legislation have snagged and recent reports... Read more…

AMD Lines Up Alternate Chips as It Eyes a ‘Post-exaflops’ Future

June 10, 2022

Close to a decade ago, AMD was in turmoil. The company was playing second fiddle to Intel in PCs and datacenters, and its road to profitability hinged mostly on Read more…

Exascale Watch: Aurora Installation Underway, Now Open for Reservations

May 10, 2022

Installation has begun on the Aurora supercomputer, Rick Stevens (associate director of Argonne National Laboratory) revealed today during the Intel Vision event keynote taking place in Dallas, Texas, and online. Joining Intel exec Raja Koduri on stage, Stevens confirmed that the Aurora build is underway – a major development for a system that is projected to deliver more... Read more…

  • arrow
  • Click Here for More Headlines
  • arrow
HPCwire