Schedulers DEPENDENT TASKS Multiobjective FOR MONO AND RAILS, ROBUST UNCERTAINTIES OF APPLICATION / ESCALONADORES DE TAREFAS DEPENDENTES MONO E MULTIOBJETIVO PARA GRADES, ROBUSTOS ÀS INCERTEZAS DA APLICAÇÃO

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

26/08/2011

RESUMO

The grid schedulers are responsible for deciding how to divide the tasks on the grids hosts in order to achieve the best possible performance. The lack of users knowledge about the applications demands do the informations received by the schedulers differ from the actual values that should be considered to achieve nearly optimal scheduling. This paper presents two robust task schedulers to uncertainties in the description of the communication demands of the application. One of the scheduler treats the scheduler problem like a monobjective problem, and the other one treats like a multiobjective problem. The robust scheduler performance to applications uncertain demand are evaluated using simulations based on real grid applications. The schedules generated by robust to uncertainties schedulers were compared with schedules generated by schedulers that considers the information input are always correct. The schedulers presented themselves useful before scenarios with a high degree of uncertainty.

ASSUNTO(S)

escalonamento differential evolution grades incertezas. ciencia da computacao scheduling differential evolution grid uncertains.

ACESSO AO ARTIGO

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