Superconducting Digital DIT Butterfly Unit for Fast Fourier Transform Using Race Logic

Bautista, Gay; Gonzalez-Guerrero, Patricia; Lyles, Darren; Huch, Kylie

doi:10.1109/newcas52662.2022.9842221

Cited by 1 publication

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This makes PaST-NoC a candidate for conventional architectures that use typical binary encoding, but also for non-conventional architectures that use alternative data representations. These non-conventional architectures have demonstrated the potential for integrating hundreds of processing elements (PEs) on today's superconducting chips [20], [21], [22], [23], [24], [25], [26]. Not only do these scales motivate the use of a NoC but in fact previously-demonstrated binary superconducting NoCs are far from reaching the scales of hundreds that these emerging architectures call for.…”

Section: Introductionmentioning

confidence: 99%

PaST-NoC: A Packet-Switched Superconducting Temporal NoC

Lyles

Gonzalez-Guerrero

Bautista

2023

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Temporal computing promises to mitigate the stringent area constraints and clock distribution overheads of traditional superconducting digital computing. To design a scalable, area-and power-efficient superconducting network on chip (NoC), we propose packet-switched superconducting temporal NoC (PaST-NoC). PaST-NoC operates its control path in the temporal domain using race logic (RL), combined with bufferless deflection flow control to minimize area. Packets encode their destination using RL and carry a collection of data pulses that the receiver can interpret as pulse trains, RL, serialized binary, or other formats. We demonstrate how to scale up PaST-NoC to arbitrary topologies based on 2×2 routers and 4×4 butterflies as building blocks. As we show, if data pulses are interpreted using RL, PaST-NoC outperforms state-of-the-art superconducting binary NoCs in throughput per area by as much as 5× for long packets.

show abstract