Paper Info
Title
DiAMOND:Distributed alteration of messages for on-chip network debug
Abstract
During emulation and post-silicon validation of networks-on-chip (NoCs), lack of observability of internal operations hinders the detection and debugging of functional bugs. Verifying the correctness of the control-flow portion of the NoC requires tests that exercise its functionality, while abstracting the data content of traffic. We propose a methodology where network packets are repurposed for the storage of debug information collected during execution. Debug data pertaining to each packet is collected at routers along its path and stored by replacing the packet's original data content. Our solution is coupled with a detection scheme consisting of small checkers that monitor execution and flag bugs. Upon bug detection, we analyze the debug information to reconstruct network traffic.We also provide relevant statistics for debugging, such as packet interactions and packet latencies, per router. In our experiments, this approach allows us to reconstruct over 80% of the packets' routes. Moreover, the obtained statistics facilitate debugging erroneous network behavior and identifying performance bottlenecks.
Year
DOI
Venue
2014
10.1109/NOCS.2014.7008771
Networks-on-Chip
Keywords
Field
DocType
network routing,network-on-chip,program debugging,NoC,bug detection,control-flow portion,data content,debug data,debug information,debugging,detection scheme,distributed alteration of messages for on-chip network debug,functional bugs,internal operations observability,network traffic,networks-on-chip,packet interactions,packet latencies,routers
Computer science,Software bug,Computer network,Real-time computing,x86 debug register,Debug menu,Parallel computing,Debug code,Network packet,Background debug mode interface,Router,Debugging,Embedded system
Conference
Citations 
PageRank 
References 
1
0.34
9
Authors
3
Name
Order
Citations
PageRank
Rawan Abdel-Khalek1152.32
Valeria Bertacco2136586.93
Abdel-Khalek, R.310.34