activity
20032018
most citedSpectroscopic Analyses of the Blue Hook Stars in NGC 2808: A More Stringent Test of the Late Hot Flasher Scenario

80 citations · 210 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.IM2018★ 7 cited

Exploiting the Space Filling Curve Ordering of Particles in the Neighbour Search of Gadget3

Antonio Ragagnin, Nikola Tchipev, Michael Bader +2

Gadget3 is nowadays one of the most frequently used high performing parallel codes for cosmological hydrodynamical simulations. Recent analyses have shown t\ hat the Neighbour Sear…

astro-ph.IM2016★ 4 cited

A web portal for hydrodynamical, cosmological simulations

Antonio Ragagnin, Klaus Dolag, Veronica Biffi +5

This article describes a data center hosting a web portal for accessing and sharing the output of large, cosmological, hydro-dynamical simulations with a broad scientific community…

cs.DC2016★ 5 cited

Performance Optimisation of Smoothed Particle Hydrodynamics Algorithms for Multi/Many-Core Architectures

Fabio Baruffa, Luigi Iapichino, Nicolay J. Hammer +1

We describe a strategy for code modernisation of Gadget, a widely used community code for computational astrophysics. The focus of this work is on node-level performance optimisati…

cs.DC2016★ 1 cited

Extreme Scale-out SuperMUC Phase 2 - lessons learned

Nicolay Hammer, Ferdinand Jamitzky, Helmut Satzger +36

In spring 2015, the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum, LRZ), installed their new Peta-Scale System SuperMUC Phase2. Selected users were invited for a 28 day extr…

astro-ph.SR2016★ 5 cited

The world's largest turbulence simulations

Christoph Federrath, Ralf S. Klessen, Luigi Iapichino +1

Understanding turbulence is critical for a wide range of terrestrial and astrophysical applications. Here we present first results of the world's highest-resolution simulation of t…

astro-ph.IM2010★ 66 cited

An axis-free overset grid in spherical polar coordinates for simulating 3D self-gravitating flows

Annop Wongwathanarat, Nicolay J. Hammer, Ewald Müller

A type of overlapping grid in spherical coordinates called the Yin-Yang grid is successfully implemented into a 3D version of the explicit Eulerian grid-based code PROMETHEUS inclu…