Article ID Journal Published Year Pages File Type
439229 Theoretical Computer Science 2008 11 Pages PDF
Abstract

We consider the problem of online scheduling a set of equal-processing-time tasks with precedence constraints so as to minimize the makespan. For arbitrary precedence constraints, it is known that any list scheduling algorithm has a competitive ratio of 2−1/m, where m is the number of machines. We show that for intree precedence constraints, Hu’s algorithm yields an asymptotic competitive ratio of 3/2.

Related Topics
Physical Sciences and Engineering Computer Science Computational Theory and Mathematics