A case study of on-chip sensor network in multiprocessor system-on-chip

Reducing feature sizes and power supply voltage allows integrating more processing units (PUs) on multiprocessor system-on-chip (MPSoC) to satisfy the increasing demands of applications. However, it also makes MPSoC more susceptible to various reliability threats, such as high temperature and power/ground (P/G) noise. As the scale and complexity of MPSoC continuously increase, monitoring and mitigating reliability threats at run time could offer better performance, scalability, and flexibility for MPSoC designs. In this paper, we propose a systematic approach, on-chip sensor network (SENoC), to collaboratively detect, report, and alleviate run-time threats in MPSoC. SENoC not only detects reliability threats and shares related information among PUs, but also plans and coordinates the reactions of related PUs in MPSoC. SENoC is used and explained in our case study to alleviate the impacts of simultaneous switching noise in MPSoC’s P/G network during power gating. Based on the detaile...

• Type: Conference
• Year: 2009
• Where: CASES
• Authors: Yu Wang 0002, Jiang Xu, Shengxi Huang, Weichen Liu, Huazhong Yang
• Keywords: Alleviate Run-time Threats, CASES 2009, Reliability Threats, System Software, Various Reliability Threats