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Performance Characteristics of OpenMP Constructs, and Applications Benchmarks on a Large Symmetric Multiprocessor
 

Summary: Performance Characteristics of OpenMP Constructs, and Applications
Benchmarks on a Large Symmetric Multiprocessor
Nathan R. Fredrickson, Ahmad Afsahi
, and Ying Qian
Department of Electrical and Computer Engineering
Queen's University
Kingston, ON, Canada K7L 3N6
{fredrick, ahmad, qiany}@ee.queensu.ca
Abstract
With the increasing popularity of small to large-scale symmetric multiprocessor (SMP) systems,
there has been a dire need to have sophisticated, and flexible development and runtime environments
for efficient and rapid development of parallel applications. To this end, OpenMP has emerged as the
standard for parallel programming on shared-memory systems. It is very important to evaluate the
performance of OpenMP constructs, kernels, and application benchmarks on large-scale SMP systems.
We present the performance of the basic OpenMP constructs, class B of NAS OpenMP 3.0
benchmarks, and the SPEC OMPL2001 application benchmarks (large data set) on a contemporary
72-node Sun Fire 15K SMP node. We report the basic timings, scalability, and runtime profiles of
different parallel regions within each benchmark in the NAS OpenMP 3.0, and the SPEC OMPL2001
suites. We elaborate on the performance differences between the medium and large classes of the
SPEC OMP2001 suites on our system, as well as a comparison among a number of large-scale

  

Source: Afsahi, Ahmad - Department of Electrical and Computer Engineering, Queen's University (Kingston)

 

Collections: Computer Technologies and Information Sciences