Chapter 6

HPC Benchmarks for CFD

Abstract

This chapter is about the use of high-performance computing in computational flow dynamics, a real devourer of resources. Various types of comparative studies are analyzed in detail and commented on in terms of interconnectivity, storage, and memory requirements. The ANSYS® Fluent®, CFX®, and OpenFOAM benchmarks provide an overview of the nature of problems run on the various types of hardware.

Keywords

ANSYS CFX; ANSYS FLUENT; Benchmarks; CFD; HPC; OpenFOAM

1. How Big Should the Problem Be?

Computational Fluid Dynamics (CFD) problems are resource-hungry applications. They require a large amount of computer power to be solved. Let us start with the smallest problem. Consider a one-dimensional (1D) partial differential ...

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