A Comparison of MPI/OpenMP and Coarray Fortran for Digital Rock Physics Application

Reshetova, Galina; Cheverda, V. A.; Khachkova, Tatyana

doi:10.1007/978-3-030-25636-4_19

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…The most important advantage of the MPI 3.0 standard is the effective implementation of one-way communications, allowing to move to one of the most promising parallel programming models PGAS (Partitioned Global Address Space). Computational experiments on continuum mechanics models [3][4][5] have shown that Coarray Fortran code has the same scalability as MPI code. At the same time, the complexity of code development is noticeably reduced, which leads to the development of new libraries [7] and language extensions [8].…”

Section: Introductionmentioning

confidence: 99%

The Roofline Analysis of Special Relativistic Hydrodynamics Coarray Fortran Code

2023

JSFI

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Our previous papers are dedicated to the development of the first code for computational astrophysics using Coarray Fortran technology. The main result of the study of the developed code is the achievement of weak scalability at the level of MPI implementations, which allows to fully concentrate on using Coarray Fortran for developing new program codes. Coarray Fortran is based on the MPI directives, and helps software developer to create simple code without Send/Receive or synchronization commands. At the same time, such scalability can be achieved due to the weak implementation of the sequential part of the program code, which is characterized by frequent cache misses, inefficient memory usage and poor overall performance. In this article, we propose a method for analyzing program code performance using the roofline analysis. We used Intel Advisor software package from Intel oneAPI toolkit. High performance and efficient work with the memory of both individual key procedures and the code as a whole are demonstrated.

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Section: Introductionmentioning

confidence: 99%

The Roofline Analysis of Special Relativistic Hydrodynamics Coarray Fortran Code

2023

JSFI

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

et al. 2022

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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.

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A Comparison of MPI/OpenMP and Coarray Fortran for Digital Rock Physics Application

Cited by 2 publications

References 12 publications

The Roofline Analysis of Special Relativistic Hydrodynamics Coarray Fortran Code

The Roofline Analysis of Special Relativistic Hydrodynamics Coarray Fortran Code

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

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