Accession Number : ADA330109
Title : Parallel ALLSPD-3D: Speeding Up Combustor Analysis Via Parallel Processing
Descriptive Note : Technical memo.
Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER
Personal Author(s) : Fricker, David M.
PDF Url : ADA330109
Report Date : JUN 1997
Pagination or Media Count : 10
Abstract : The ALLSPD-3D Computational Fluid Dynamics code for reacting flow simulation was run on a set of benchmark test cases to determine its parallel efficiency. These test cases included non-reacting and reacting flow simulations with varying numbers of processors. Also, the tests explored the effects of scaling the simulation with the number of processors in addition to distributing a constant size problem over an increasing number of processors. The test cases were run on a cluster of IBM RS/60000 Model 590 workstations with ethernet arid ATM networking plus a shared memory SGI Power Challenge L workstation. The results indicate that the network capabilities significantly influence the parallel efficiency, i.e., a shared memory machine is fastest and ATM networking provides acceptable performance. The limitations of ethernet greatly hamper the rapid calculation of flows using ALLSPD-3D.
Descriptors : *PARALLEL PROCESSING, *COMPUTATIONAL FLUID DYNAMICS, COMPUTERIZED SIMULATION, DISTRIBUTED DATA PROCESSING, COMPUTER COMMUNICATIONS, FLOW VISUALIZATION, HYDRODYNAMIC CODES, COMPUTER NETWORKS, COMPUTER PROGRAM VERIFICATION, COMPUTER BENCHMARKING.
Subject Categories : Computer Systems
Distribution Statement : APPROVED FOR PUBLIC RELEASE