Paper Info
Title
Performance characteristics of the multi-zone NAS parallel benchmarks
Abstract
We describe a new suite of computational benchmarks that models applications featuring multiple levels of parallelism. Such parallelism is often available in realistic flow computations on systems of meshes, but had not previously been captured in benchmarks. The new suite, named NPB (NAS parallel benchmarks) multi-zone, is derived from the NPB suite, and involves solving the application benchmarks LU, BT and SP on collections of loosely coupled discretization meshes. The solutions on the meshes are updated independently, but after each time step they exchange boundary value information. This strategy provides relatively easily exploitable coarse-grain parallelism between meshes. Three reference implementations are available: one serial, one hybrid using the message passing interface (MPI) and OpenMP, and another hybrid using a shared memory multi-level programming model (SMP+OpenMP). We examine the effectiveness of hybrid parallelization paradigms in these implementations on four different parallel computers. We also use an empirical formula to investigate the performance characteristics of the hybrid parallel codes.
Year
DOI
Venue
2004
10.1016/j.jpdc.2005.06.016
Journal of Parallel and Distributed Computing - Special issue: 18th International parallel and distributed processing symposium
Keywords
DocType
Volume
hybrid parallelization paradigm,new suite,hybrid parallel code,different parallel computer,nas parallel benchmarks,computational benchmarks,performance characteristic,npb suite,parallel computers,exploitable coarse-grain parallelism,hybrid programming,multi-zone nas,performance model,boundary value information,multi-zone parallel benchmarks,application benchmarks lu,parallel processing,parallel computer,parallel programming,message passing,computational modeling,computational fluid dynamics,boundary value problems,mpi,open systems,stress,concurrent computing,message passing interface,programming model,application software,benchmark testing
Conference
66
Issue
ISSN
Citations 
5
0743-7315
42
PageRank 
References 
Authors
4.14
3
2
Name
Order
Citations
PageRank
Haoqiang Jin128431.77
Rob F. Van der Wijngaart237445.61