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2009 15th IEEE International On-Line Testing Symposium
Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults
Sesimbra-Lisbon, Portugal
June 24-June 26
ISBN: 978-1-4244-4596-7
Caroline Concatto, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Pedro Almeida, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Fernanda Kastensmidt, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Erika Cota, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Marcelo Lubaszewski, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Marcos Herve, PPGC - PGMICRO - Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
We propose a fault tolerance method for torus NoCs capable of increase the yield with minimal performance overhead. The proposed approach consists in detecting and diagnosing interconnect faults using BIST structures and activating alternative paths for the faulty links. Experimental results show that alternative fault-free paths are found by the dynamic routing for 95% of the diagnosed faults (stuck-at and pairwise shorts within a single link or between any two links).
Citation:
Caroline Concatto, Pedro Almeida, Fernanda Kastensmidt, Erika Cota, Marcelo Lubaszewski, Marcos Herve, "Improving yield of torus nocs through fault-diagnosis-and-repair of interconnect faults," iolts, pp.61-66, 2009 15th IEEE International On-Line Testing Symposium, 2009
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