Ondřej Vysocký

Toward energy-efficiency: CNTD_MERIC approach for energy-aware MPI applications

Kashaf Ad Dooja, Osman Yasal, Ondřej Vysocký, Lubomir Riha et autres

Energy efficiency is a major challenge in High-Performance Computing (HPC) systems, impairing their scale, performance, and sustainability. Despite technological and research progress, there is still a lack of software methods to measure and assess the energy efficiency of computing codes at scale. …

in, it, cz, co (code pays fourni par la source)

The PLUTO code on GPUs: A first look at Eulerian MHD methods

Marco Rossazza, A. Mignone, Matteo Bugli, S. Truzzi et autres

We present preliminary performance results of gPLUTO , the new GPU-optimized implementation of the PLUTO code for computational plasma astrophysics. Like its predecessor, gPLUTO employs a Eulerian finite-volume formulation to numerically solve the equations of magnetohydrodynamics (MHD) in multiple spatial dimensions. Still, …

it, fr, cz (code pays fourni par la source)

ETP4HPC SRA 6 White Paper - Energy Efficiency and Sustainability

Andreas Wierse, Pierre Séroul, Ondřej Vysocký, Michaela Barth et autres

This is a white paper released as part of the ETP4HPC’s Strategic Research Agenda 6. Energy efficiency and sustainability (EE&S) have become central challenges for modern High-Performance Computing (HPC) and AI infrastructures. While energy savings are often viewed as the main issue, …

de, fr, cz, se, it, fi, us (code pays fourni par la source)

ETP4HPC SRA 6 White Paper - Energy Efficiency and Sustainability

Andreas Wierse, Pierre Séroul, Ondřej Vysocký, Michaela Barth et autres

This is a white paper released as part of the ETP4HPC’s Strategic Research Agenda 6. Energy efficiency and sustainability (EE&S) have become central challenges for modern High-Performance Computing (HPC) and AI infrastructures. While energy savings are often viewed as the main issue, …

de, fr, cz, se, it, fi, us (code pays fourni par la source)

48th VI-HPS Tuning Workshop

Marc Schlütter, Brian J. N. Wylie, Marc Clascà, Aleksandar Ilic et autres

This workshop organised by VI-HPS and CASTIEL2, in collaboration with POP CoE, will: give an overview of the VI-HPS programming tools suite, present tools & methodology of Performance Optimisation & Productivity (POP) Centre of Excellence, explain the functionality of individual tools, and …

An in-depth study of GPU frequency-scaling latency and its optimization on modern architectures

Daniel Velicka, Ondřej Vysocký, Osman Yasal, Lubomir Riha

cz (code pays fourni par la source)

EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale

Nitin Shukla, Alessandro B. Romeo, Caterina Caravita, Lubomir Riha et autres

High Performance Computing (HPC) based simulations are crucial in Astrophysics and Cosmology (A&C), helping scientists investigate and understand complex astrophysical phenomena. Taking advantage of exascale computing capabilities is essential for these efforts. However, the unprecedented architectural complexity of exascale systems impacts legacy …

The PLUTO Code on GPUs: A First Look at Eulerian MHD Methods

Marco Rossazza, A. Mignone, Matteo Bugli, Stefano Truzzi et autres

We present preliminary performance results of gPLUTO, the new GPU-optimized implementation of the PLUTO code for computational plasma astrophysics. Like its predecessor, gPLUTO employs a finite-volume formulation to numerically solve the equations of magnetohydrodynamics (MHD) in multiple spatial dimensions. Still, this new …

Methodology for GPU Frequency Switching Latency Measurement

Daniel Velicka, Ondřej Vysocký, Lubomı́r Řı́ha

The push towards exascale and post-exascale computing in HPC and AI brings together thousands of CPUs and specialized accelerator hardware, making energy optimization crucial as power costs rival system purchase prices. Energy efficiency techniques based on frequency and voltage scaling have been …

cz (code pays fourni par la source)

Heterogeneous Memory Pool Tuning

Filip Vaverka, Ondřej Vysocký, Lubomı́r Řı́ha

We present a lightweight tool for the analysis and tuning of application data placement in systems with heterogeneous memory pools. The tool allows non-intrusively identifying, analyzing, and controlling the placement of individual allocations of the application. We use the tool to analyze …

cz (code pays fourni par la source)

EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale. Invited Paper

Nitin Shukla, Alessandro B. Romeo, Caterina Caravita, Lubomı́r Řı́ha et autres

High Performance Computing (HPC) based simulations are crucial in Astrophysics & Cosmology (A&C), helping scientists investigate and understand complex astrophysical phenomena.Taking advantage of exascale computing capabilities is essential for these efforts.However, the unprecedented architectural complexity of exascale systems impacts legacy codes.The SPACE …

it, be, de, fr, no, es (code pays fourni par la source)

MaX - Materials design at the exascale - a EuroHPC Centre of Excellence: Recent selected results

Lubomı́r Řı́ha, Stanislav Böhm, Ondřej Vysocký, Filip Vaverka et autres

The third phase of the MaX Centre of Excellence is designed to provide the European materials simulation community with the necessary tools to adapt to the technological advancements in massively parallel heterogeneous computing systems, enabling them to tackle previously unattainable scientific challenges.This …

cz, it, de, es, si (code pays fourni par la source)