Title

Build Time Reduction Opportunities In The Generation Of Typical Sne 3D Terrain Databases

Keywords

3D environment database; OPNET; OPNET/ACE; Parallel processing; Simulation; SNE; Terrain database; Terrain generation

Abstract

Typically, when creating a Simulated Natural Environment (SNE), the development of an integrated run-time terrain data base from a real-world geospatial data sets is a heavy computational and time consuming task for the development team. There is a DoD goal to deploy location-specific live, constructive, and virtual training simulations in 72 to 96 hours. Minimizing the time required to produce the terrain or "battlespace" in which to instantiate these training simulations is a fundamental component of meeting the time reduction goal. The ability to utilize parallel computational systems to distribute this burden among many processors and recombine the data into a cohesive 3D terrain database is a promising approach for both lessening the computational burden and speeding up the time needed to produce the complete SNE. Some vendors of 3D terrain data base creation tools now support parallel processing in high performance clusters. This application of parallel computational architectures brings closer to reality the idea of using repositories of environmental data to generate, as needed, the terrain for real-time simulations. In this paper, we evaluate results obtained from 3D visual terrain database build experiments using a Commercial Off- The-Shelf (COTS) terrain generation application running in a Beowulf cluster. The type and amount of parallelization and the communication scheme currently in the vendor product can be assessed from data captured while transforming environmental data sets into standard run-time 3D visual database formats, such as OTF, OpenFlight and SEDRIS. Our results quantify the performance of the current implementation, from the perspective of the parallelism in the hardware and software, including the communication overhead. This indicates areas for future implementation alternatives, COTS modifications, as well as, opportunities for communications optimization.

Publication Date

12-1-2006

Publication Title

Spring Simulation Interoperability Workshop 2006

Volume

2

Number of Pages

679-687

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84864966771 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84864966771

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