89 citations · 261 across the 13 of their papers we have counts for
14 papers
Node-Level Performance and Energy Characterization of Flagship Science Applications on SuperMUC-NG Phase 2
Salvatore Cielo, Elmira Birang, Alexander Pöppl +5
We present a systematic performance and energy-efficiency characterization of five flagship scientific workloads on SuperMUC-NG phase 2, the 28 PetaFLOPs system at the Leibniz Supe…
Towards FAIR Astrophysical Simulations
Susanne Pfalzner, Stephan Hachinger, Jolanta Zjupa +4
Reproducibility is a cornerstone of science. FAIR (findable, accessible, interoperable, and reusable) data is often a vital step towards testing the reproducibility of results. The…
SYCL for Energy-Efficient Numerical Astrophysics: the case of DPEcho
Salvatore Cielo, Alexander Pöppl, Ivan Pribec
Energy awareness and efficiency policies are gaining more attention, over pure performance (time-to-solution) Key Performance Indicators (KPIs) when comparing the possibilities off…
The spectrum of magnetized turbulence in the interstellar medium
James R. Beattie, Christoph Federrath, Ralf S. Klessen +2
The interstellar medium (ISM) of our Galaxy is magnetized, compressible and turbulent, influencing many key ISM properties, like star formation, cosmic ray transport, and metal and…
Magnetized compressible turbulence with a fluctuation dynamo and Reynolds numbers over a million
James R. Beattie, Christoph Federrath, Ralf S. Klessen +2
Supersonic magnetohydrodynamic (MHD) turbulence is a ubiquitous state for many astrophysical plasmas. However, even the basic statistics for this type of turbulence remains uncerta…
Optimizing the hybrid parallelization of BHAC
Salvatore Cielo, Oliver Porth, Luigi Iapichino +3
We present our experience with the modernization on the GR-MHD code BHAC, aimed at improving its novel hybrid (MPI+OpenMP) parallelization scheme. In doing so, we showcase the use…
Honing and proofing Astrophysical codes on the road to Exascale. Experiences from code modernization on many-core systems
Salvatore Cielo, Luigi Iapichino, Fabio Baruffa +2
The complexity of modern and upcoming computing architectures poses severe challenges for code developers and application specialists, and forces them to expose the highest possibl…
Speeding simulation analysis up with yt and Intel Distribution for Python
Salvatore Cielo, Luigi Iapichino, Fabio Baruffa
As modern scientific simulations grow ever more in size and complexity, even their analysis and post-processing becomes increasingly demanding, calling for the use of HPC resources…
Visualizing the world's largest turbulence simulation
Salvatore Cielo, Luigi Iapichino, Johannes Günther +3
In this exploratory submission we present the visualization of the largest interstellar turbulence simulations ever performed, unravelling key astrophysical processes concerning th…
Feedback from Reorienting AGN Jets
S. Cielo, A. Babul, V. Antonuccio-Delogu +2
[abridged] Aims: We test the effects of re-orienting jets from an active galactic nucleus (AGN) on the intracluster medium in a galaxy cluster environment with short central coolin…
AGN Feedback Compared: Jets versus Radiation
S. Cielo, R. Bieri, M. Volonteri +2
Feedback by Active Galactic Nuclei is often divided into quasar and radio mode, powered by radiation or radio jets, respectively. Both are fundamental in galaxy evolution, especial…
Backflows by AGN jets: Global properties and influence on SMBH accretion
S. Cielo, V. Antonuccio-Delogu, J. Silk +1
Jets from Active Galactic Nuclei (AGN) inflate large cavities in the hot gas environment around galaxies and galaxy clusters. The large-scale gas circulation promoted within such c…
3D simulations of the early stages of AGN jets: geometry, thermodynamics and backflow
S. Cielo, V. Antonuccio-Delogu, A. V. Macciò +2
We investigate the interplay between jets from Active Galactic Nuclei (AGNs) and the surrounding InterStellar Medium (ISM) through full 3D, high resolution, Adaptive Mesh Refinemen…
Evolution of the Mass-Metallicity relations in passive and star-forming galaxies from SPH-cosmological simulations
A. D. Romeo Velonà, J. Sommer-Larsen, N. R. Napolitano +3
We present results from SPH-cosmological simulations, including self-consistent modelling of SN feedback and chemical evolution, of galaxies belonging to two clusters and twelve gr…