Record Details

Performance of the Widely-Used CFD Code OVERFLOW on the Pleides Supercomputer
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Author and Affiliation:
Guruswamy, Guru P.(NASA Ames Research Center, Moffett Field, CA United States)
Abstract: Computational performance studies were made for NASA's widely used Computational Fluid Dynamics code OVERFLOW on the Pleiades Supercomputer. Two test cases were considered: a full launch vehicle with a grid of 286 million points and a full rotorcraft model with a grid of 614 million points. Computations using up to 8000 cores were run on Sandy Bridge and Ivy Bridge nodes. Performance was monitored using times reported in the day files from the Portable Batch System utility. Results for two grid topologies are presented and compared in detail. Observations and suggestions for future work are made.
Publication Date: May 01, 2017
Document ID:
20170004382
(Acquired May 17, 2017)
Subject Category: FLUID MECHANICS AND THERMODYNAMICS; NUMERICAL ANALYSIS
Report/Patent Number: ARC-E-DAA-TN38625, NASA/TM-2017-219510
Document Type: Technical Report
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Description: 14p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: COMPUTATIONAL FLUID DYNAMICS; SUPERCOMPUTERS; LAUNCH VEHICLES; ROTARY WING AIRCRAFT; MODELS; REYNOLDS AVERAGING; NAVIER-STOKES EQUATION; WIND TUNNEL MODELS; CENTRAL PROCESSING UNITS; TIME MEASUREMENT; PERFORMANCE TESTS; COMPUTATIONAL GRIDS; TOPOLOGY; SIZE DISTRIBUTION
Other Descriptors: WIDELY USED; OVERFLOW CFD; PLEIADES SUPERCOMPUTER
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