Parallel Performance Studies for an Elliptic Test problem on the Cluster maya 2013; Using 1-D and 2-D domain subdivisions
Author/Creator
Date
2014Type of Work
21 pagesText
Technical Report
Rights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Subjects
Parallel ComputingMPI
Finite Difference
Poisson Equation
2-D Domain Subdivision
Grid Topology
UMBC High Performance Computing Facility (HPCF)
Abstract
One of the most important aspects of parallel computing is the communication between processes since it has tremendous impact on overall performance of this method of computing. Consequently, it is important to implement the parallel code in a way that communications between processes are taking place in a most efficient way. In this study we want to investigate the effect of domain subdivision, 1-D or 2-D, on performance of parallel computing. In this regard, the Poisson equation is solved as a test
problem using fi nite difference method with both 1-D and 2-D domain subdivisions. Both aforementioned methods show good speedup. Although in most cases the grid-structured communication show slightly better performance, the overall performance of 2-D domain subdivision does not indicate the superiority of this method.