Title :
Resource Availability Evaluation in Service Grid Environment
Author :
Zhoujun, Hu ; Zhigang, Hu ; Zhenhua, Liu
Author_Institution :
Central South Univ., Changsha
Abstract :
In dynamic grid environment, prediction and evaluation of resource availability are the prerequisite for reasonable resource selection and good QoS guarantee. Based on some related resource and task historical traces, probability theory is applied to resource availability prediction and evaluation. The availability metrics including resource off-line time, local task execution time, waiting queue length and waiting time are presented and the distribution functions of these metrics are given and proven. The experiment results show that the prediction is effective, and the amount of candidate resources determined by resource availability evaluation is decreased significantly, therefore lowering time complexity of task scheduling.
Keywords :
grid computing; probability; quality of service; resource allocation; scheduling; task analysis; QoS guarantee; availability metrics; dynamic grid environment; local task execution time; probability theory; resource availability evaluation; resource availability prediction; resource off-line time; resource selection; service grid environment; task scheduling; time complexity; waiting queue length; waiting time; Availability; Distribution functions; Grid computing; Predictive models; Resource management; Scheduling; Statistical distributions; Telecommunication traffic; Time measurement; Workstations;
Conference_Titel :
Asia-Pacific Service Computing Conference, The 2nd IEEE
Conference_Location :
Tsukuba Science City
Print_ISBN :
0-7695-3051-6
DOI :
10.1109/APSCC.2007.17
