A New Parallel Code Based on a Simple Piecewise Parabolic Method for Numerical Modeling of Colliding Flows in Relativistic Hydrodynamics

Igor Kulikov, Igor Chernykh, Dmitry Karavaev, Vladimir Prigarin, Anna Sapetina, Ivan Ulyanichev and Oleg Zavyalov
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Igor Kulikov: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Igor Chernykh: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Dmitry Karavaev: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Vladimir Prigarin: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Anna Sapetina: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Ivan Ulyanichev: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia
Oleg Zavyalov: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk 630090, Russia

Mathematics, 2022, vol. 10, issue 11, 1-19

Abstract: A new parallel code based on models of special relativistic hydrodynamics is presented for describing interacting flows. A new highly accurate numerical method is considered and verified. A parallel implementation of the method by means of Coarray Fortran technology and its efficiency are described in detail. The code scalability is 92% on a cluster with Intel Xeon 6248R NKS-1P with 192 Coarray Fortran images. Different interacting relativistic flows are considered as astrophysical applications.

Keywords: computational astrophysics; relativistic hydrodynamics; high performance computing (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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