Minimizing System Noise Effects For Extreme-Scale Scientific Simulation Through Function Delegation

Dongarra, Jack J. ; Bosilca, George

University of Tennessee, Knoxville

关键词: 97 Mathematics And Computing;   

DOI  :  10.2172/1083067
RP-ID  :  DOE/ER/25845-3
RP-ID  :  FG02-08ER25845
RP-ID  :  1083067

美国|英语

来源: UNT Digital Library

【 摘 要 】

The primary goal of the Minimizing System Noise Effects For Extreme-Scale Scientific Simulation through Function Delegation project is to eliminate or at best strongly minimize the impact of the noise introduced by the operating system, during large scale parallel applications runs. Collective communication operations are a basic building block for parallel programing models and scientific applications. These operations often dominate execution time of applications and tend to limit their scalability. In order to address this challenge, we evaluated different strategies to adapt the collective communications underlying topologies to the hardware architecture in order to provide increased levels of performance to the parallel applications.