Simultaneous PVT-Tolerant Voltage-Island Formation
and Core Placement for Thousand-Core Platforms
Sohaib Majzoub, Resve Saleh, Steven J.E. Wilton, and Rabab Ward
International Symposium on System-on-Chip, Oct 2009
Abstract
In this paper, we propose a novel approach to
voltage island formation and core placement for energy
optimization in manycore architectures under parameter
variations at pre-fabrication stage. We group the cores into
irregular "cloud-shaped" voltage islands. The islands are
created by balancing the desire to limit the spatial extent of
each island, to reduce PVT impact, with the communication
patterns between islands. Compared to using rectangular
islands, our approach leads to power improvements between
10 and 12%.
Back to Steve Wilton's home page