Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 45: SYPC: From Atoms to Photonic Circuits 2

Q 45.2: Invited Talk

Thursday, March 15, 2012, 14:30–15:00, V47.01

Nanophotonic Interconnection Networks for Performance-Energy Optimized Computing — •Keren Bergman — Department of Electrical Engineering, Columbia University, New York, NY

As chip multiprocessors (CMPs) scale to increasing numbers of cores and greater on-chip computational power, the gap between the available off-chip bandwidth and that which is required to appropriately feed the processors continues to widen under current memory access architectures. For many high-performance computing applications, the bandwidth available for both on- and off-chip communications can play a vital role in efficient execution due to the use of data-parallel or data-centric algorithms. Electronic interconnected systems are increasingly bound by their communications infrastructure and the associated power dissipation of high-bandwidth data movement. Recent advances in chip-scale silicon photonic technologies have created the potential for developing optical interconnection networks that can offer highly energy efficient communications and significantly improve computing performance-per-Watt. This talk will examine the design and performance of photonic networks-on-chip architectures that support both on-chip communication and off-chip memory access in an energy efficient manner.