User Modeling of Parallel Workloads: Predicting and Optimizing the Use of Parallel Computers - Image 1

£37.57

VDM Verlag User Modeling of Parallel Workloads: Predicting and Optimizing the Use of Parallel Computers

Name: User Modeling of Parallel Workloads: Predicting and Optimizing the Use of Parallel Computers
Brand: VDM Verlag
Price: 37.57 GBP
Availability: InStock

Operating Systems

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Description

The goal of workload modeling is to predict a computer?s workload well enough to design it correctly. A poor model will lead to degraded performance and user satisfaction. Analyzing logs from multiple real parallel computers uncovers several statistical features ? locality of sampling, daily cycles, weekly cycles, self similarity and flurries ? that are missing from current workload models. Their practical importance is demonstrated by two new kinds of scheduling algorithms ? adaptive scheduling and shortest job backfill first scheduling ? which achieve an average 10% bottom- line performance gain and 35% stability gain on the production workloads. The second part of this book presents a user based workload model. It identifies four stable user types and five stable session types. It then deduces model parameters, the distributions of the arrival and activity patterns for both users and sessions, their dependencies and temporal structure. The methodology and statistical toolset is explained to make it easier to reuse in other domains. The insights and practical advice provided will be of use to anyone building or operating a large-scale parallel computer.

Product Specifications

Brand: VDM Verlag
Format: paperback
ASIN: 3639142950
Category: Books > Subjects > Computing & Internet > Computer Science > Operating Systems
Domain: Amazon UK
Release Date: 22 April 2009
Listed Since: 05 May 2009

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VDM Verlag User Modeling of Parallel Workloads: Predicting and Optimizing the Use of Parallel Computers

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