3D thermal-aware floorplanner using a MOEA approximation

Two of the major concerns in 3D stacked technology are heat removal and power density distribution. In our work, we propose a novel 3D thermal-aware floorplanner. Our contributions include:1.A novel multi-objective formulation to consider the thermal and performance constraints in the optimization a...

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Bibliographic Details
Published in:Integration (Amsterdam) 2013-01, Vol.46 (1), p.10-21
Main Authors: Cuesta, David, Risco-Martin, José L., Ayala, José L., Ignacio Hidalgo, J.
Format: Article
Language:English
Subjects:
3D architecture
Approximation
Architecture
Evolutionary algorithm
Hot spots
Mathematical analysis
Mathematical models
Optimization
Reliability
Representations
Temperature
Thermal-aware floorplan
Three dimensional
Through silicon vias optimization
Wire
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Summary:Two of the major concerns in 3D stacked technology are heat removal and power density distribution. In our work, we propose a novel 3D thermal-aware floorplanner. Our contributions include:1.A novel multi-objective formulation to consider the thermal and performance constraints in the optimization approach.2.Two efficient Multi-Objective Evolutionary Algorithm (MOEA) for the representation of the floorplanning model and for the optimization of thermal parameters and wire length.3.A smooth integration of the MOEA model with an accurate thermal modeling of the architecture.The experimental work is conducted for two realistic many-core single-chip architectures: an homogeneous system resembling INTEL's SCC, and an improved heterogeneous setup. The results show promising improvements of the mean and peak temperature, as well as the thermal gradient, with a reduced overhead in the wire length of the system. ► We have addressed the 3D thermal problem with algorithmic solutions. ► We developed an effective multi-objective genetic algorithm. ► We integrated the algorithm with an accurate thermal model. ► We optimized the communication wiring by placing optimized TSVs.
ISSN:0167-9260
1872-7522
DOI:10.1016/j.vlsi.2012.04.003