articleAstronomy and ComputingFeb 5, 2026HYBRID OA

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

MRMarco RossazzaAMA. MignoneMBMatteo BugliSTS. TruzziLRL. Riha

University of Turin · Centre National de la Recherche Scientifique · +5 more institutions

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Abstract

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, this new implementation is a complete rewrite in C++ and leverages the OpenACC programming model to achieve acceleration on NVIDIA GPUs. While a more comprehensive description of the code and its several other modules will be presented in a future paper, here we focus on some preparatory results that demonstrate the code potential and performance on pre exa-scale parallel architectures.

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Topics & keywords

Topics
Keywords
  • Pluto
  • Code (set theory)
  • Eulerian path
  • Magnetohydrodynamics
  • Focus (optics)
  • Acceleration
  • Computational fluid dynamics
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