User Modeling of Parallel Workloads

Name: User Modeling of Parallel Workloads
Brand: VDM Verlag
SKU: 9783639142952
Price: 59.66 EUR
Availability: InStock

Predicting and Optimizing the Use of Parallel Computers

Автор: David Talby

Език:

Корици: С меки корици

Издател: VDM Verlag

Наличност: Външен склад

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The goal of workload modeling is to predict a §computer s workload well enough to design it §correct...

Информация за книгата

Автор

David Talby

Език

Английски език

Корици

Книга - С меки корици

Издадена

2009

страници

132

EAN

9783639142952

ISBN

3639142950

Enbook ID

06822906

Издател

VDM Verlag

Теглоt

204

Размери

152 x 229 x 8

Пълно описание

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.

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User Modeling of Parallel Workloads

Predicting and Optimizing the Use of Parallel Computers

Информация за книгата

Пълно описание

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