Accession Number : ADA296601

Title :   An Investigation of the Parallel Implementation of Two Volume Visualization Techniques on the nCUBE 2.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS INFORMATION TECHNOLOG Y LAB

Personal Author(s) : West, John E. ; Stephens, Michael M. ; Turcotte, Louis H.

PDF Url : ADA296601

Report Date : FEB 1995

Pagination or Media Count : 61

Abstract : This report presents a divide-and-conquer approach to developing visualization software for scientific analysis of high resolution, volume datasets on distributed memory parallel computers. Two complementary methods for exploring volume datasets are discussed, isosurface generation and direct volume rendering, and the logic behind the design of parallel implementations of the original sequential algorithms is highlighted. For both algorithms, the data, once distributed, remains in place regardless of the viewer's location, and no interprocessor communication is required during scene generation. Development of the algorithms' communication structure is also discussed, with an introduction to issues surrounding parallel I/O and data distribution for these implementations. Finally, basic parallel performance metrics will be outlined, and test results indicating the performance results of the parallel implementations on an nCUBE 2 will be discussed.

Descriptors :   *SOFTWARE ENGINEERING, *PARALLEL PROCESSORS, *VISUAL INSPECTION, *SYSTEMS APPROACH, TEST AND EVALUATION, ALGORITHMS, POSITION(LOCATION), COMPUTER COMMUNICATIONS, COMPUTERS, INPUT OUTPUT PROCESSING, PARALLEL PROCESSING, HIGH RESOLUTION, SEQUENCES, MEMORY DEVICES, VIEWERS, DIGITAL COMPUTERS.

Subject Categories : Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE