scholarly journals Hierarchical Dynamic Thermal Management Method for High-Performance Many-Core Microprocessors

2016 ◽  
Vol 22 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Hai Wang ◽  
Jian Ma ◽  
Sheldon X.-D. Tan ◽  
Chi Zhang ◽  
He Tang ◽  
...  
Author(s):  
Yang Ge ◽  
Qinru Qiu

High chip complexity and power consumption raise chip temperature, reduce lifetime, affect the reliability, and increase the cooling cost. Dynamic Thermal Management (DTM) techniques are design to control the chip temperature and tackle the thermal related issues. In this chapter, the authors introduce the working principles and implementation details of some state-of-the-art DTM techniques, in order to boost thermal awareness in the green computing community. They first give the motivation of dynamic thermal management, and divide existing DTM approaches into different categories based on their characteristics. Then the detailed design and implementation issues of these techniques are carefully discussed. Finally, the authors share future research directions in this area.


Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3725
Author(s):  
Hernán Aparicio ◽  
Pablo Ituero

The extreme miniaturization of electronic technologies has turned varying and unpredictable temperatures into a first-class concern for high performance processors which mitigate the problem employing dynamic thermal managements control systems. In order to monitor the thermal profile of the chip, these systems require a collection of on-chip temperature sensors with strict demands in terms of area and power overhead. This paper introduces a sensor topology specially tailored for these requirements. Targeting the 40 nm CMOS technology node, the proposed sensor uses both bipolar and CMOS transistors, benefiting from the stable thermal characteristics of the former and the compactness and speed of the latter. The sensor has been fully characterized through extensive post-layout simulations for a temperature range of 0 ∘ C to 100 ∘ C , achieving a maximum error of ±0.9 ∘ C / considering 3 σ yield and a resolution of 0.5 ∘ C . The area—900 μ m 2 , energy per conversion—1.06 nJ, and sampling period—2 μ s, are very competitive compared to previous works in the literature.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tingting Du ◽  
Zixin Xiong ◽  
Luis Delgado ◽  
Weizhi Liao ◽  
Joseph Peoples ◽  
...  

AbstractThermal switches have gained intense interest recently for enabling dynamic thermal management of electronic devices and batteries that need to function at dramatically varied ambient or operating conditions. However, current approaches have limitations such as the lack of continuous tunability, low switching ratio, low speed, and not being scalable. Here, a continuously tunable, wide-range, and fast thermal switching approach is proposed and demonstrated using compressible graphene composite foams. Large (~8x) continuous tuning of the thermal resistance is achieved from the uncompressed to the fully compressed state. Environmental chamber experiments show that our variable thermal resistor can precisely stabilize the operating temperature of a heat generating device while the ambient temperature varies continuously by ~10 °C or the heat generation rate varies by a factor of 2.7. This thermal device is promising for dynamic control of operating temperatures in battery thermal management, space conditioning, vehicle thermal comfort, and thermal energy storage.


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