Nature-inspired interconnects for self-assembled large-scale network-on-chip designs.

Area of Science:

• Nanoscience and Nanotechnology
• Computer Engineering
• Materials Science

Background:

• Nanoscale electronics demand scalable and robust communication solutions beyond traditional silicon.
• Networks-on-chip (NoC) offer a paradigm for interconnect challenges but current architectures are ill-suited for irregular, self-assembled molecular electronics.
• Emerging molecular electronics present unique challenges due to inherent irregularity and imperfection.

Purpose of the Study:

• To investigate design tradeoffs and properties of an irregular, 3D small-world interconnect fabric for nanoscale electronics.
• To assess the communication characteristics, robustness, and computational efficiency of this fabric.
• To determine the viability of irregular assemblies and small-world networks for future computing paradigms.

Main Methods:

• Designed and simulated an abstract, physically plausible 3D small-world interconnect fabric inspired by NoC.
• Varied key parameters including connectivity, switch node count, and connection length distribution.
• Measured communication characteristics, robustness against link failures, and efficiency in solving a synchronization task.

Main Results:

• Irregular assemblies demonstrate a promising and disruptive computing paradigm for self-assembled nanoscale electronics.
• 3D small-world interconnect fabrics with power-law distributed shortcut lengths are physically plausible.
• These fabrics exhibit significant advantages over regular 2D and 3D topologies in terms of communication and robustness.

Conclusions:

• Computation in irregular, self-assembled nanoscale electronics is a viable and disruptive future computing paradigm.
• 3D small-world interconnect fabrics offer a robust and efficient communication solution for these emerging systems.
• The findings support the development of novel architectures for next-generation nanoscale electronic devices.