Replication-Based Partial Dynamic Scheduling on Heterogeneous Network Processors

Abstract

Abstract. It is a great challenge to map network processing tasks to processing resources of advanced network processors, which are heterogeneous and multi-threading multiprocessor System-on-Chip. This paper proposes a novel scheduling algorithm, called Replication-based Partial Dynamic Scheduling (RPDS). It aims to improve the NP performance by combining the strategies of partial dynamic mapping and task replication with a 2-phase scheduling. RPDS differs from existing solutions in several aspects, e.g., the processing elements are heterogeneous, fully-connected, and multi-threading, the application is decomposed into directed acyclic graph tasks with continuous data-packets, and scheduling is conducted at both of initialization and run-time. Experimental results showed our algorithm could increase the largest average throughput by about 30% than those without dynamic phase replication.