The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics
The field of astrophysics has long sought computational tools capable of harnessing the power of modern GPUs to simulate the complex dynamics of astrophysical phenomena. The Kratos Framework, a novel GPU-based simulation system designed to leverage heterogeneous computing architectures, is introduce...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Supplement Series |
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| Online Access: | https://doi.org/10.3847/1538-4365/adbdb6 |
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| author | Lile Wang |
| author_facet | Lile Wang |
| author_sort | Lile Wang |
| collection | DOAJ |
| description | The field of astrophysics has long sought computational tools capable of harnessing the power of modern GPUs to simulate the complex dynamics of astrophysical phenomena. The Kratos Framework, a novel GPU-based simulation system designed to leverage heterogeneous computing architectures, is introduced to address these challenges. Kratos offers a flexible and efficient platform for a wide range of astrophysical simulations, by including its device abstraction layer, multiprocessing communication model, and mesh-management system that serves as the foundation for the physical module container. Focusing on the hydrodynamics module as an example and foundation for more complex simulations, optimizations and adaptations have been implemented for heterogeneous devices that allow for accurate and fast computations, especially the mixed-precision method that maximizes its efficiency on consumer-level GPUs while holding the conservation laws to machine accuracy. The performance and accuracy of Kratos are verified through a series of standard hydrodynamic benchmarks, demonstrating its potential as a powerful tool for astrophysical research. |
| format | Article |
| id | doaj-art-5bf55898cf0e4a48a3bd5b4fff0fb16d |
| institution | DOAJ |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-5bf55898cf0e4a48a3bd5b4fff0fb16d2025-08-20T03:08:20ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127726310.3847/1538-4365/adbdb6The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and HydrodynamicsLile Wang0https://orcid.org/0000-0002-6540-7042The Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People’s Republic of China ; lilew@pku.edu.cn; Department of Astronomy, School of Physics, Peking University , Beijing 100871, People’s Republic of ChinaThe field of astrophysics has long sought computational tools capable of harnessing the power of modern GPUs to simulate the complex dynamics of astrophysical phenomena. The Kratos Framework, a novel GPU-based simulation system designed to leverage heterogeneous computing architectures, is introduced to address these challenges. Kratos offers a flexible and efficient platform for a wide range of astrophysical simulations, by including its device abstraction layer, multiprocessing communication model, and mesh-management system that serves as the foundation for the physical module container. Focusing on the hydrodynamics module as an example and foundation for more complex simulations, optimizations and adaptations have been implemented for heterogeneous devices that allow for accurate and fast computations, especially the mixed-precision method that maximizes its efficiency on consumer-level GPUs while holding the conservation laws to machine accuracy. The performance and accuracy of Kratos are verified through a series of standard hydrodynamic benchmarks, demonstrating its potential as a powerful tool for astrophysical research.https://doi.org/10.3847/1538-4365/adbdb6Astronomy softwareComputational methodsGPU computingHydrodynamical simulationsHydrodynamics |
| spellingShingle | Lile Wang The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics The Astrophysical Journal Supplement Series Astronomy software Computational methods GPU computing Hydrodynamical simulations Hydrodynamics |
| title | The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics |
| title_full | The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics |
| title_fullStr | The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics |
| title_full_unstemmed | The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics |
| title_short | The Kratos Framework for Heterogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics |
| title_sort | kratos framework for heterogeneous astrophysical simulations fundamental infrastructures and hydrodynamics |
| topic | Astronomy software Computational methods GPU computing Hydrodynamical simulations Hydrodynamics |
| url | https://doi.org/10.3847/1538-4365/adbdb6 |
| work_keys_str_mv | AT lilewang thekratosframeworkforheterogeneousastrophysicalsimulationsfundamentalinfrastructuresandhydrodynamics AT lilewang kratosframeworkforheterogeneousastrophysicalsimulationsfundamentalinfrastructuresandhydrodynamics |