TR-2001-23
Performance Predictions for a Numerical Relativity Package in Grid Environments
Matei Ripeanu; Adriana Iamnitchi. 3 May, 2001.
Communicated by Ian Foster.
Abstract
The Cactus software is representative for a whole class of scientific
applications: tightly coupled, regular space decomposition, huge memory and
processor time requirements. It proved to be a valuable tool for
astrophysicists, who first initiated its development. However, today's
fastest supercomputers are not powerful enough to solve realistically large
astrophysics simulations with Cactus. The emergence of innovative resource
environments like computational Grids satisfies this need for computational
power. Our paper addresses issues related to the execution of applications
like Cactus in Grid environments. We focus on two types of Grids: a set of
geographically distributed supercomputers and a collection of the scale of
one million Internet-connected workstations. We study the application
performance
on traditional systems, validate the theoretical results against
experimental data, and predict performance in the two new environments.
Original Document
The original document is available in Postscript (uploaded 8 June, 2001 by
Dustin Mitchell).
