Simulations of energy losses in the bulk nuclear medium using hydrodynamics on the Graphics Cards (GPU)

Marcin Słodkowski , Patryk Gawryszewski , Patryk Marcinkowski , Dominik Setniewski , Joanna Porter-Sobieraj


We are developing a software for energy loss simulation which is affected by jets in the nuclear matter described by relativistic hydrodynamics. Our program uses a Cartesian coordinate system in order to provide high spatial resolution for the analysis of jets propagation in nuclear matter. In this work, we use 7th order WENO numerical algorithm which is resistant to numerical oscillations and diffusions. For simulating energy losses in the bulk nuclear medium, we develop efficient hydrodynamic simulation program for parallel computing using Graphics Processing Unit (GPU) and Compute Unified Device Architecture (CUDA). It allows us to prepare event-by-event simulations in high computing precision in order to study jet modifications in the medium and event-by-event simulations of fluctuating initial conditions. In our simulation, we start the hydrodynamic simulation from generation initial condition based on the UrQMD model in order to simulate comparable nucleus-nucleus interaction in the RHIC and LHC energies. The main part of this simulation is the computation of hydrodynamic system evolution. We present obtained energy density distributions which can be compared to experimental results.
Author Marcin Słodkowski (FP / NPD)
Marcin Słodkowski,,
- Nuclear Physics Division
, Patryk Gawryszewski
Patryk Gawryszewski,,
, Patryk Marcinkowski
Patryk Marcinkowski,,
, Dominik Setniewski
Dominik Setniewski,,
, Joanna Porter-Sobieraj (FMIS / DCSDCAM)
Joanna Porter-Sobieraj,,
- Department of CAD/CAM Systems Design and Computer-Aided Medicine
Issue year2019
Publication size in sheets0.5
Keywords in Polishsymulacje komputerowe, hydrodynamika relatywistyczna, algorytm WENO, obliczenia równoległe
Keywords in Englishcomputer simulations, relativistic hydrodynamic, WENO algorithm, parallel computing
Abstract in PolishWyniki obejmują część badań nad symulacją materii silnie oddziałującej (SIM), skupiając się na generowaniu zmiennych warunków początkowych modelu UrQMD. W ramach pracy powstała implementacja z wykorzystaniem CUDA, a obliczenia przeprowadzane są równolegle na kartach graficznych.
Languageen angielski
Score (nominal)0
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