Job characteristics of a production parallel scientific workload on the NASA Ames iPSC/860

Dror G. Feitelson, Bill Nitzberg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

135 Scopus citations

Abstract

Statistics of a parallel workload on a 128-node iPSC/860 located at NASA Ames are presented. It is shown that while the number of sequential jobs dominates the number of parallel jobs, most of the resources (measured in node-seconds) were consumed by parallel jobs. Moreover, most of the sequential jobs were for system administration. The average runtime of jobs grew with the number of nodes used, so the total resource requirements of large parallel jobs were larger by more than the number of nodes they used. The job submission rate during peak day activity was somewhat lower than one every two minutes, and the average job size was small. At night, submission rate was low but job sizes and system utilization were high, mainly due to NQS. Submission rate and utilization over the weekend were lower than on weekdays. The overall utilization was 50%, after accounting for downtime. About 2/3 of the applications were executed repeatedly, some for a significant number of times.

Original languageAmerican English
Title of host publicationJob Scheduling Strategies for Parallel Processing - IPPS 1995 Workshop, Proceedings
EditorsDror G. Feitelson, Larry Rudolph
PublisherSpringer Verlag
Pages337-360
Number of pages24
ISBN (Print)3540601538, 9783540601531
DOIs
StatePublished - 1995
Externally publishedYes
EventWorkshop on Job Scheduling Strategies for Parallel Processing held as a prelude to the IPPS 1995 Conference - Santa Barbara, United States
Duration: 25 Apr 199525 Apr 1995

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume949
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

ConferenceWorkshop on Job Scheduling Strategies for Parallel Processing held as a prelude to the IPPS 1995 Conference
Country/TerritoryUnited States
CitySanta Barbara
Period25/04/9525/04/95

Bibliographical note

Publisher Copyright:
© 1995, Springer Verlag. All rights reserved.

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