Computing Architectures Exploiting Optical Interconnect
and Optical Memory Technologies
SessionDoctoral Showcase Session 1
Presenter
Event Type
Doctoral Showcase
Applications
Architectures
Heterogeneous Systems
Memory
Networks
TimeTuesday, November 14th11:42am -
12pm
Location210-212
DescriptionThe long-standing “Bandwidth” and “Memory-Wall”
problems hinder exascale computing within the available
energy boundaries. This work proposes new
optical-systems for use in innovative Computing
Architectures towards increasing bandwidth and reducing
energy-consumption. The initial efforts were devoted
towards elevating optical-memories from the so-far
single-bit layouts to complete multi-bit optical-cache
setups, demonstrating the first optical-cache blueprint
at 16Gb/s. The optical-cache credentials are highlighted
by proposing an optically enabled Chip-Multiprocessor
architecture; the shared single-level optical-cache
approach negates the need for complex cache-hierarchy
and demonstrates 20% speed-up for PARSEC benchmarks.
Extending optics utilization to complete HPC
environments, OptoHPC-Sim simulator was developed for
supporting system-scale utilization of
optical-interconnect and electro-optical routing
technologies. Using OptoHPC-Sim, an OptoBoard-based
HPC-network is proposed demonstrating 190% mean
throughput improvement and 83% mean packet-delay
reduction compared to world’s #3 HPC. Finally, all this
experience led to the design of the first optical
Ternary-CAM-row architecture at 20Gb/s for fast address
look-up configurations.
