Name
Abstract | ||
|---|---|---|
Microring resonators, key components in on-chip photonic networks, are extremely sensitive to thermal variations, resulting in high failure rate optical transmission. Recently, hybrid photonic-electronic networks-on-chip (HPENoCs) have become popular because they exploit both electrical and photonic interconnects to satisfy stringent bandwidth, latency and energy demands of future chip multiprocessors (CMPs). Traditionally, power-hungry trimming methods using metal heaters are applied to stabilize microring resonant wavelengths. In this work, we propose a thermal-aware fault-tolerant routing technique (TAFT) that exploits the dual path diversity of HPENoCs to perform adaptive routing, given on-chip thermal conditions. TAFT achieves bit error rate (BER) of 10-11, exceeding required for reliable optical transmission (10-9); TAFT further guarantees connectivity of 99.98%. Compared to conventional power trimming, TAFT achieves 30% power efficiency, while it incurs 17% throughput overhead and only 2% latency overhead in real system benchmarks. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1145/2994133.2994135 | NoCArc@MICRO |
Keywords | Field | DocType |
network-on-chip,fault-tolerant routing,photonic interconnect,thermal variation | Electrical efficiency,Computer science,Network on a chip,Chip,Real-time computing,Fault tolerance,Bandwidth (signal processing),Throughput,Photonics,Bit error rate | Conference |
Citations | PageRank | References |
2 | 0.38 | 7 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mo Yang | 1 | 8 | 0.84 |
| Paul Ampadu | 2 | 285 | 28.55 |