Performance-Cost Optimization of Moldable Scientific Workflows

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F21%3APU142893" target="_blank" >RIV/00216305:26230/21:PU142893 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/book/10.1007%2F978-3-030-88224-2" target="_blank" >https://link.springer.com/book/10.1007%2F978-3-030-88224-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-88224-2_8" target="_blank" >10.1007/978-3-030-88224-2_8</a>

Result language

angličtina

Original language name

Performance-Cost Optimization of Moldable Scientific Workflows

Original language description

Moldable scientific workflows represent a special class of scientific workflows where the tasks are written as distributed programs being able to exploit various amounts of computer resources. However, current cluster job schedulers require the user to specify the amount of resources per task manually. This often leads to suboptimal execution time and related cost of the whole workflow execution since many users have only limited experience and knowledge of the parallel efficiency and scaling. This paper proposes several mechanisms to automatically optimize the execution parameters of moldable workflows using genetic algorithms. The paper introduces a local optimization of workflow tasks, a global optimization of the workflow on systems with on-demand resource allocation, and a global optimization for systems with static resource allocation. Several objectives including the workflow makespan, computational cost and the percentage of idling nodes are investigated together with a trade-off parameter putting stress on one objective or another. The paper also discusses the structure and quality of several evolved workflow schedules and the possible reduction in makespan or cost. Finally, the computational requirements of evolutionary process together with the recommended genetic algorithm settings are investigated. The most complex workflows may be evolved in less than two minutes using the global optimization while in only 14s using the local optimization.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Job Scheduling Strategies for Parallel Processing

ISBN

978-3-030-88223-5

ISSN

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e-ISSN

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Number of pages

19

Pages from-to

149-167

Publisher name

Springer International Publishing

Place of publication

Portland, Oregon USA

Event location

Portland, Oregon USA

Event date

May 17, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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