Title :
Online Analysis and Runtime Steering of Dynamic Workflows in the ASKALON Grid Environment
Author_Institution :
Inst. of Comput. Sci., Univ. of Innsbruck, Innsbruck
Abstract :
We present a new distributed performance analysis service of the ASKALON integrated Grid environment for computing runtime overheads of dynamic workflows in realtime based on event correlation techniques. We illustrate a formal method to express precise overhead correlation rules, including several performance contracts as quality of service parameters based on fuzzy logic to be enforced in dynamic environments though rescheduling, various runtime optimisations, and steering techniques. We demonstrate experimental results for two real applications from material chemistry and graphics rendering domains.
Keywords :
fuzzy logic; grid computing; software performance evaluation; workflow management software; ASKALON grid environment; distributed performance analysis; dynamic workflows; event correlation technique; fuzzy logic; graphics rendering; material chemistry; online analysis; rescheduling; runtime optimisations; runtime steering; Chemistry; Contracts; Distributed computing; Fuzzy logic; Graphics; Grid computing; Optimization methods; Performance analysis; Quality of service; Runtime environment;
Conference_Titel :
Cluster Computing and the Grid, 2007. CCGRID 2007. Seventh IEEE International Symposium on
Conference_Location :
Rio De Janeiro
Print_ISBN :
0-7695-2833-3
DOI :
10.1109/CCGRID.2007.76
