An efficient strategy for task duplication in multiport message-passing systems

Abstract

Important problem in compilers for parallel machines. In this paper, we present a duplication strategy for task scheduling in multiport message-passing systems. Through a performance gain analysis, we establish a condition under which duplicating a parent task of a task is beneficial. We also show that, by incorporating this strategy into two well-known priority-based scheduling algorithms, significant reductions in the execution time can be achieved.