Silicon Photonic LIONS: All-to-All Interconnects for
Energy-Efficient, Scalable, and Modular HPC Systems
Contributors
Event Type
Emerging Technologies
TimeThursday, November 16th10am -
6pm
Location401
DescriptionThis project pursues extremely energy-efficient and
high-throughput photonic interconnected computing
systems enabled by scalable and modular integration of
2.5D or 3D silicon photonic (SiP) interposers with
all-to-all, contention-less, and arbitration-free
wavelength routing by cyclic
Arrayed-Waveguide-Grating-Routers (AWGRs) [LIONS:
Low-Latency Interconnect Optical Network Switches].
First, this paper introduces the working principle of
the all-to-all photonic interconnect technology and show
how it can be used to implement a multi-chip computing
board. Second, the paper evaluates performance of the
system under various workloads in terms of execution
time and energy per transaction via simulations. Third,
the latest results in terms of device fabrication and
testing of SiP AWGR photonic routers are presented.
Finally, the paper discusses modular and hierarchical
scaling of the all-to-all photonic interconnects
utilizing AWGRs with practical numbers of port
counts.
