TITLE

Page Migration with Dynamic Space-Sharing Scheduling Policies: The Case of the SGI O2000

AUTHOR(S)
Corbalan, Julita; Martorell, Xavier; Labarta, Jesus
PUB. DATE
August 2004
SOURCE
International Journal of Parallel Programming;Aug2004, Vol. 32 Issue 4, p263
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, we claim that memory migration mechanism is a useful approach to improve the execution of parallel applications in dynamic execution environments, but that their performance depends on related system components such as the processor scheduling. To show that, we evaluate the automatic memory migration mechanism provided by IRIX in Origin systems, under different dynamic processor allocation policies when executing OpenMP parallel multiprogrammed workloads. We have focused the evaluation on the effects of the page migration mechanism on the CPU time consumed by each application, the processor allocation received, and the speedup. Results demonstrate that, if the processor scheduler is memory conscious, that is, it maintains as much as possible the system stable, the automatic memory page migration mechanism provided by IRIX improves the CPU time consumed by OpenMP applications.
ACCESSION #
17039626

 

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