Accession Number : ADA302573

Title :   Runtime Volume Visualization for Parallel CFD.

Descriptive Note : Contract rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Ma, Kwan-Liu

PDF Url : ADA302573

Report Date : OCT 1995

Pagination or Media Count : 14

Abstract : This paper discusses some aspects of the design of a data distributed, massively parallel volume rendering library for runtime visualization of parallel computational fluid dynamics simulations in a message-passing environment. Unlike the traditional scheme in which visualization is a postprocessing step, the rendering is done in place on each node processor. Computational scientists who run large-scale simulations on a massively parallel computer can thus perform interactive monitoring of their simulations. The current library provides an interface to handle volume data on rectilinear grids. The same design principles can be generalized to handle other types of grids. For demonstration, we run a parallel Navier- Stokes solver making use of this rendering library on the Intel Paragon XP/S. The interactive visual response achieved is found to be very useful. Performance studies show that the parallel rendering process is scalable with the size of the simulation as well as with the parallel computer.

Descriptors :   *PARALLEL PROCESSORS, *COMPUTATIONAL FLUID DYNAMICS, COMPUTERIZED SIMULATION, COMPUTATIONS, MONITORING, INTERACTIONS, GRIDS, PARALLEL PROCESSING, NODES, PARALLEL ORIENTATION, LIBRARIES, SCIENTISTS.

Subject Categories : Computer Hardware
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE