Exascale Computing in Astrophysics

Centro Stefano Franscini

Monte Verita, Ascona, Switzerland

8 September - 13 September 2013


Sunday 08/09/2013

18.30 Welcome Apero

19.30 Dinner Buffet (until 21.30 for late arrivals)

Monday 09/09/2013

8.45 Welcome Address and Video about Monte Verita

9.00 Romain Teyssier: Introductory remarks

9.40 Paul Shapiro: Cosmic Reionization: The Challenge of Simulating the Radiative Feedback of Galaxy Formation on Galaxy Formation

10.20 Coffee Break

10.50 Gus Evrard: Exascale Computational Cosmology for Clusters of Galaxies: Science Opportunities and Cultural Challenges

11.15 Gustavo Yepes: Multimass zoom-in simulations of individual objects: A promising alternative  to achieve massive  parallelism

11.40 Walter Dehnen: Efficient parallel gravity computations

12.05 Joel Primack: Supercomputing the Universe

12.30 Lunch

14.00 Marco Baldi: D-Gadget and MG-Gadget: simulating Dark Energy and Modified Gravity

14.25 Richard Bower:Multiscale Galaxy Formation: beyond the Eagle simulations

14.50 Ilian Iliev: Large-scale structure formation and radiative transfer simulations: the Petascale and beyond

15.15 Frazer Pearce: Roadmap to the Full Euclid Simulations

15.40 Vincent Reverdy: Full Universe Runs and beyond

16.05 Coffee Break

16.35 Guiseppe Murante: Galaxy formation and evolution with a sub-resolution prescription

17.00 Naoki Yoshida: The dream of yesterday: Direct integration of the collisionless Boltzmann equation in full 6D

17.25 Tom Theuns: Parallelizing zoomed simulations

17.50 Discussion: cosmological simulations: science case and code evolution

19.30 Dinner

Tuesday 10/09/2013

9.00 Thomas Schulthess: A comprehensive look at energy efficiency in supercomputing

9.40 Tom Sterling: ParalleX Execution Model for Exascale Astrophysics

10.20 Coffee Break

10.50 Richard Klein: The Coupled Effects of Protostellar Outflow Feedback, Radiation Feedback, Magnetic Fields and Turbulence on the Formation of Massive Stars and Massive Star Clusters: A Multi-Physics Feedback Exascale Challenge

11.30 Aake Nordlund: Zooming in on Star Formation

12.00 Petros Koumoutsakos: Fast Machines and Cool Algorithms for (Exascale) Flow Simulations.

12.30 Lunch

14.00 Jonathan Coles: A Shared Future for Molecular Dynamics & Astrophysics at Exascale?

14.25 Piero Madau: Zoom-in Cosmological Simulations: Connecting the Light and Dark Side of Galaxy Formation

14.50 Pedro Gonnet: SWIFT: Task-based parallelism, hybrid shared/distributed-memory parallelism, and SPH simulations

15.15 Yohan Dubois: AGN feedback in hydro cosmological simulations of galaxy formation

15.40 Nick Gnedin: Beyond the Space Filling Curve approach for load balancing

16.05 Coffee Break

16.35 Federico Marinacci: Disk galaxy formation in moving-mesh cosmological simulations

17.00 Paul Ricker: Using Accelerator Hardware to Improve Sub-Resolution Modeling

17.25 Oliver Hahn: Cold Dark Matter in Phase Space

17.50 Discussion: galaxy formation, star formation, astrophysical fluid dynamics: science case and code evolution

19.30 Dinner

Wednesday 11/09/2013

9.00 Alex Szalay: Turning Large-Scale Simulations into Interactive Numerical Laboratories

9.40 Tom Quinn: Pathways to Exascale N-body Simulations

10.20 Coffee Break

10.50 Peter Berczik: Towards a million GPU cores for exascale for astrophysical high order N-body simulations

11.15 Thomas Guillet: Application challenges for astrophysics codes towards Exascale architectures

11.40 Peter Messmer: What do you need from us (Nvidia) ?

12.05 Pierre Kestener: High-Resolution compressible MHD simulations on a cluster of GPU

12.30 Dominique Aubert: GPUs for Cosmological Simulations

13.00 Lunch

14.00 Free afternoon

19.30 Conference Dinner BBQ

Thursday 12/09/2013

9.00 Jack Dongarra: Algorithmic and Software Challenges For Numerical Libraries at Exascale

9.40 Anthony Mezzacappa: The Exascale Challenge of Ascertaining the Explosion Mechanism of Core Collapse Supernovae

10.20 Coffee Break

10.50 Sergey Khoperskov: Multi-component models of GMCs formation

11.20 Kosuke Sumiyoshi: Solving 6D Boltzmann equations for core-collapse supernovae and its future

11.50 Matthias Liebendörfer: Adaptive algorithms for supernova neutrino transport

12.30 Lunch

14.00 Rüdiger Pakmor: Challenges in modeling Type Ia Supernovae

14.25 Patrick Hennebelle: From molecular clouds to stars: the challenge of computational star formation

14.50 Stefanie Walch: Simulating the life cycle of molecular clouds (SILCC)

15.15 Alexei Kritsuk: Interstellar Turbulence: A perspective towards Exascale

15.40 Brian Van Straalen: Resilient Computing is Really Heterogeneous Computing

16.05 Coffee Break

16.35 Franco Vazza: Evolving cosmic rays in cosmological simulations: status, perspectives and challenges

17.00 Alexander Knebe: Structure Finding in Cosmological Simulations: The State of Affairs

17.25 Francesco Miniati: Turbulence in Galaxy Clusters

17.50 Discussion: supernovae simulations: science case and code evolution

19.30 Dinner

Friday 13/09/2013

9.00 Paul Woodward: Simulating Turbulent Fluid Flows in Astrophysics at the Petascale Today and at the Exascale in the Not Distant Future

9.40 Gabrielle Allen: The Einstein Toolkit: A Community Computational Infrastructure for Relativistic Astrophysics

10.20 Coffee Break

10.50 Annick Pouquet: Turbulence in astrophysical flows and exascale computing

11.15 Yannick Ponty: How to reach  High Performance Computing with Pseudo Spectral Method ?

11.40 Marc Joos: Magnetohydrodynamic turbulence in accretion discs: pathway to exascale and I/O challenges

12.05 Discussion: turbulence simulations: science case and code evolution

13.05 Lunch