hi all, I am a grad student at Princeton Univ, advised by Li-Shiuan Peh (MIT), and I have recently developed a fault modeling tool for NoCs, which I would like to incorporate into GEM5.
Overview: this tool accurately models circuit failures; it was developed by synthesizing multiple routers' RTL and performing Monte Carlo simulations on their SPICE model netlists. On the other hand, it is wrapped with an architectural interface, which eases the evaluation of resilient NoC/system designs by abstracting circuit-level complexity. The tool interfaces with GARNET, gets as input a (fixed) temperature and each router's configuration, and provides (for each router) the probability of occurrence for a vector of architectural fault types (data corruption, misrouting, flit duplication / loss / split in pieces, erroneous credit generation, credit loss, erroneous allocation of virtual channels / switch, unfair arbitration). GARNET users can read the probability of occurrence for the faults their resilient architecture is tackling, inject these faults into GARNET at runtime, and evaluate realistically how fault tolerant their architecture is. ...more about the fault model: [publication] Konstantinos Aisopos, Chia-Hsin Owen Chen, and Li-Shiuan Peh, "Enabling System-Level Modeling of Variation-Induced Faults in Networks-on-Chip", DAC '11 [PDF] http://projects.csail.mit.edu/wiki/pub/LSPgroup/PublicationList/FaultModel_DAC2011.pdf [webpage] http://www.mit.edu/~kaisopos/FaultModel ...more about me: http://www.mit.edu/~kaisopos I ll go ahead and publish a review request and I am looking forward to your comments! regards, -Kostas _______________________________________________ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
