Name
Abstract | ||
|---|---|---|
As silicon continues to scale, transistor reliability is becoming a major concern. At the same time, increasing transistor counts are causing a rapid shift towards large chip multi-processors (CMP) and system-on-chip (SoC) designs, comprising several cores and IPs communicating via a network-on-chip (NoC). As the sole medium of on-chip communication, a NoC should gracefully tolerate many permanent faults. We propose uDIREC, a unified framework for permanent fault diagnosis and subsequent reconfiguration in NoCs that provides graceful performance degradation with increasing number of faults. Upon in-field transistor failures, uDIREC leverages a fine-resolution diagnosis mechanism to disable faulty components very sparingly. At its core, uDIREC employs a novel routing algorithm to find reliable and deadlock-free routes that utilize the still-functional links in the NoC. uDIREC places no restriction on topology, router architecture and number and location of faults. Experimental results show that uDIREC, implemented in a 64-node NoC, drops 3x fewer nodes and provides 25% higher throughput (beyond 15 faults) when compared to other state-of-the-art fault-tolerance solutions. uDIREC's improvement over prior-art grows with more faults, making it a suitable NoC reliability solution for a wide range of fault rates. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1145/2540708.2540722 | MICRO |
Keywords | Field | DocType |
suitable noc reliability solution,64-node noc,permanent fault,unified diagnosis,permanent fault diagnosis,fine-resolution diagnosis mechanism,udirec leverage,transistor reliability,fault rate,noc fault,frugal bypass,in-field transistor failure,transistor count,diagnosis,noc,reconfiguration | Computer science,Parallel computing,Chip,Real-time computing,Throughput,Transistor,Router architecture,Control reconfiguration,Embedded system,Routing algorithm | Conference |
ISBN | Citations | PageRank |
978-1-5090-6603-2 | 9 | 0.46 |
References | Authors | |
48 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ritesh Parikh | 1 | 87 | 5.56 |
| Valeria Bertacco | 2 | 1365 | 86.93 |