Work

Direct numerical simulation of turbulence with a PC/linux cluster

Year: 1999

Type: conference-paper

Abstract: Direct Numerical Simulation (DNS) of turbulence requires many CPU days and Gigabytes of memory.These requirements limit most DNS to using supercomputers, available at supercomputer centres.With the rapid development and low cost of PCs, PC clusters are evaluated as a viable low-cost option for scientific computing.Both low-end and high-end PC clusters, ranging from 2 to 128 processors, are compared to a range of existing supercomputers, such as the IBM SP nodes, Silicon Graphics Origin 2000, Fujitsu AP3000 and Cray T3E.The comparison concentrates on CPU and communication performance.At the kernel level, BLAS libraries are used for CPU performance evaluation.Regarding communication, the free implementations of MPICH and LAM are used on fast-ethernet-based systems and compared to myrinet-based and supercomputer networks.At the application level, serial and parallel simulations are performed on state of the art DNS, such as turbulent wake flows in stationary and moving computational domains.

Source: Proceedings - Supercomputing

DOI: 10.1145/331532.331585

Authors: G.-S. Karamanos, C. Evangelinos, R. C. Boes, R. M. Kirby, G. E. Karniadakis

Institution: Brown University

Language: English

Topic: Parallel Computing and Optimization Techniques

Subfield: Hardware and Architecture

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, U.S. Department of Energy, Brown University, National Centre for Supercomputing Applications, Imperial College London, Defense Advanced Research Projects Agency, Office of Naval Research, Air Force Office of Scientific Research

OpenAlex ID: W2011437804

FWCI: 1.051

Cites: 20

Cited by: 13

Related to: 10