Heterogeneous Dominant Sequence Cluster (HDSC): a low complexity heterogeneous scheduling algorithm

A novel list scheduling technique, Heterogeneous List Scheduling technique (HLS), is presented. The technique is a procedure to design a scheduling algorithm for scheduling tasks into a heterogeneous environment. Using the technique, a Heterogeneous Dominant Sequence Cluster algorithm (HDSC) is proposed. This algorithm uses the critical paths and dominant sequence as scheduling heuristics with the goal of minimizing the parallel time. It is found that the proposed algorithm is of lower complexity when compared with ordinary designs and it is also suitable for use in a heterogeneous environment. Details of operations and characteristics of the scheduler being tested in different processor configurations have been conducted and satisfactory results are observed.