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Title: Prepares Overset Grids for Processing

Abstract

Many large and complex computational problems require multiple, structured, generically overlapped (overset) grids to obtain numerical solutions in a timely manner. BREAKUP significantly reduces required compute times by preparing overset grids for processing on massively parallel computers. BREAKUP subdivides the original grids for use on a user-specified number of parallel processors. Grid-to-grid and intragrid communications are maintained in the parallel environment via connectivity tables generated by BREAKUP. The subgrids are formed to be statically load balanced and to incur a minimum of communication between the subgrids. When the output of BREAKUP is submitted to an appropriately modified flow solver, subgrid solutions will be updated simultaneously. This contrasts to the much less efficient solution method of updating each original grid sequentially as done in the past.

Authors:
Publication Date:
Research Org.:
Estes, McClure and Associates, Inc.
Sponsoring Org.:
DOE/DP
OSTI Identifier:
1230450
Report Number(s):
BREAKUP; 001259MLTPL00
DOE Contract Number:  
P
Resource Type:
Software
Software Revision:
00
Software Package Number:
001259
Software Package Contents:
Media Directory; Software Abstract; Media Includes Source Code, Compilation Instructions, User's Guide, Sample Problem Input Data;\ 1 CD Rom
Software CPU:
MLTPL
Open Source:
No
Source Code Available:
Yes
Related Software:
The following are auxiliary software needed to provide data to or analyze and use data from BREAKUP. Code to generate interpolation coefficients for grid-to-grid communication; author uses the following: N.E. Suhs and R.W. Tramel, PEGSUS 4.0 User''s Manual, AEDC-TR-91-8, Calspan Corporation/AEDC Operations, Arnold AFB, Tennessee, USA. Flow solver modified by user for message passing on parallel computers. Graphics program which can read PLOT3D-formatted output; author uses the following: TECPLOT, Amtec Engineering,Inc., P.O. Box 3633, Bellevue, WA 98009-3633
Country of Publication:
United States

Citation Formats

Barnette, Daniel W. Prepares Overset Grids for Processing. Computer software. Vers. 00. DOE/DP. 22 Apr. 1998. Web.
Barnette, Daniel W. (1998, April 22). Prepares Overset Grids for Processing (Version 00) [Computer software].
Barnette, Daniel W. Prepares Overset Grids for Processing. Computer software. Version 00. April 22, 1998.
@misc{osti_1230450,
title = {Prepares Overset Grids for Processing, Version 00},
author = {Barnette, Daniel W.},
abstractNote = {Many large and complex computational problems require multiple, structured, generically overlapped (overset) grids to obtain numerical solutions in a timely manner. BREAKUP significantly reduces required compute times by preparing overset grids for processing on massively parallel computers. BREAKUP subdivides the original grids for use on a user-specified number of parallel processors. Grid-to-grid and intragrid communications are maintained in the parallel environment via connectivity tables generated by BREAKUP. The subgrids are formed to be statically load balanced and to incur a minimum of communication between the subgrids. When the output of BREAKUP is submitted to an appropriately modified flow solver, subgrid solutions will be updated simultaneously. This contrasts to the much less efficient solution method of updating each original grid sequentially as done in the past.},
doi = {},
url = {https://www.osti.gov/biblio/1230450}, year = {Wed Apr 22 00:00:00 EDT 1998},
month = {Wed Apr 22 00:00:00 EDT 1998},
note =
}

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