HP-DCFNoC: High Performance Distributed Dynamic TDM Scheduler Based on DCFNoC Theory

IEEE Access

Tomas Picornell¹  Carles Hernandez¹  Jose Flich²  Duato Jose³ 

[1] Department of Computer Architecture, Universitat Polit&x00E8;cnica de Val&x00E9;ncia, Valencia, Spain;

关键词: Dynamic scheduler;    multicore;    real-time;    tdma;    time predictable network;   

DOI  :  10.1109/ACCESS.2020.3033853

来源: DOAJ

【 摘 要 】

The need for increasing the performance of critical real-time embedded systems pushes the industry to adopt complex multi-core processor designs with embedded networks-on-chip. In this paper we present hp-DCFNoC, a distributed dynamic scheduler design that by relying on the key properties of a delayed conflict-free NoC (DCFNoC) is able to achieve peak performance numbers very close to a wormhole-based NoC design without compromising its real-time guarantees. In particular, our results show that the proposed scheduler achieves an overall throughput improvement of 6.9× and 14.4× over a baseline DCFNoC for 16 and 64-node meshes, respectively. When compared against a standard wormhole router 95% of its network throughput is preserved while strict timing predictability as property is kept. This achievement opens the door to new high performance time predictable NoC designs.

【 授权许可】

Unknown