Webinaire ASNum Geoffroy Lesur (IPAG) IDEFIX Idefix is a Godunov MHD finite volume code designed to run on accelerated supercomputers using the C++ Kokkos framework. In this webinar, I will discuss our motivations for creating a new code (in contrast to porting an existing one) and the path we followed. As the code is now…
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Webinaire ASNum Emmanuel Bertin (CEA) New prospects on Wide-Field imaging with Deep Learning Voir le Replay : https://astrotube.obspm.fr/w/hhAktLriqnVtHj7vCm85Qy Since the 19th century, wide-field imaging has significantly advanced numerous fields of Astrophysics, spanning from the study of solar system bodies to observational cosmology. Further advances in detector technology and processing power now enable the exploration of…
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Webinaire ASNum Paulo Alves UCLA Distilling reduced plasma physics models from the data of first-principles kinetic simulations Voir le Replay : https://astrotube.obspm.fr/w/rDjYRkQCuCkLaKzxXxnmEN At the core of some of the most important problems in plasma physics—from controlled nuclear fusion to the acceleration of cosmic rays—is the challenge to describe nonlinear, multiscale plasma dynamics. The development of…
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Webinaire ASNUM The environmental costs of computing Anne-Laure Ligozat Laboratoire Interdisciplinaire des Sciences du Numérique (LISN) Voir le Replay : https://astrotube.obspm.fr/w/5zUQJtnegayqoyd7hYf9mD The use of digital services and equipment keeps increasing in all domains, and in particular in scientific computing. These digital applications have environmental costs, that have begun to be taken into account. But assessing…
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Webinaire ASNUM Wassim Tenachi Automatically discovering analytical physical laws using deep reinforcement learning Voir le REPLAY : https://astrotube.obspm.fr/w/7fiKWF45p3fmzQsK8gkFnC Observatoire de Strasbourg Symbolic Regression is the study of algorithms that automate the search for analytic expressions that fit data. Using such approaches one can derive interpretable, intelligible, compact and inexpensive analytical models that tend to present…
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Webinaire ASNum Computing for research in astroparticle physics and cosmology at CC-IN2P3 Gabriele Mainetti, Quentin Le Boulc’h, Nadia Lajili, Rachid Lemrani Alaoui, Fabio Hernandez Voir le Replay : https://astrotube.obspm.fr/w/nAQFEWjmerNLceuakgNLLr IN2P3 computing centre (CC-IN2P3) provides computing and data storage services to support the projects of IN2P3’s scientific programme, including those addressing subjects in astroparticle physics and cosmology.…
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Webinaire ASNUM Raphaël Loubère Institut de Mathématiques de Bordeaux
Webinaire ASNUM Vincent Reverdy Laboratoire d’Annecy de Physique des Particules The Evolution and Standardization of C++ for the Future of Numerical Astrophysics Voir le Replay : https://astrotube.obspm.fr/w/8p7178BkGcBDnMmpwBxrMW Over the last 15 years, the C++ programming language has evolved significantly, providing more constructs and features to users. But while a part of the numerical…
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Webinaire ASNUM Damien Chapon CEA Saclay The Galactica database: an open, generic and versatile tool for the dissemination of numerical simulation data in astrophysics. Voir le Replay : https://astrotube.obspm.fr/w/erkY4XZXobPs9LxNoULTgr Résumé : The Galactica simulation database is a platform designed to assist computational astrophysicists with their open science approach based on FAIR principles. It…
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Webinaire ASNUM Building new brains for giant astronomical telescopes with Deep Neural Networks Damien Gratadour Observatoire de Paris Voir le Replay : https://astrotube.obspm.fr/w/2S6koiJ8Zr2SRhdNn5uQWb The field of experimental astronomy is entering an exciting new era, with the emergence of extremely large telescopes, hosts to primary mirrors the size of several basketball courts. Among the many challenges…
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