This program solves Euler's equations for compressible gas dynamics on a regular grid using PPM in two spatial dimensions at 7.3 Gflops CEF on theHIVE. Later the Pentium floating point operation counter was use and a rate of 3.7 Gflops PEF was obtained for the same execution time.
This program segments images by region growing and spectral clustering with natural convergence criteria.
PARAMESH is a package of Fortran 90 subroutines designed to provide an application developer with an easy route to extend an existing serial code which uses a logically cartesian structured mesh into a parallel code with adaptive mesh refinement(AMR)
Researchers at NASA/GSFC are developing methods that use commercial off-the-shelf scalable computers and software to analyze data from spacecraft in the Solar-Terrestrial Probe Line. The goal of the Remote Exploration and Experimentation is to bring advanced scalable computing technology into space.
This code solves Poisson's equation to estimate particle accelerations. The force solver is very fast, enabling the use of very large numbers of particles. The code is often used in a memory-limited regime (i.e. with as many particles and as large a grid as can fit in memory), so much effort has been expended to distribute particles evenly among the processors, even in the presence of heavy clustering. A postscript file of the description of the work may be obtained by clicking HERE. This represents about half of the author's Ph.D. dissertation, the full text of which may be found at http://fozzie.gsfc.nasa.gov/#dissertation.