QoS Matching Offset Algorithm Based on Trust-Driven for Computing Grid

In this paper, by introducing the conception of QoS matching offset between tasks and resources in grid scheduling tasks are able to be allocated on demand. Meanwhile, we take into consideration the utility of trust QoS between tasks and resources in the scheduling. Therefore, job schedule algorithm TD_QMO (trust-driven QoS matching offset) based on trust driven is presented for computing grid. The simulation results show that the algorithmpsilas performance is better than TD trust-relation, TD_Min-min in the aspects of effective resource, trust utility, load balance.