Title :
An improved algorithm for fault-tolerant wormhole routing in meshes
Author :
Sui, Pao-Hwa ; Wang, Sheng-De
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
9/1/1997 12:00:00 AM
Abstract :
Boppana and Chalasani (1995) present simple methods to enhance wormhole routing algorithms for fault-tolerance in meshes, In this brief paper, we note that one of their algorithms, f-cube4, can further be improved. In particular, we show that only three virtual channels per physical channel are sufficient for tolerating multiple faulty regions. We also show that our scheme does not lead to deadlock with any combination of faults, while f-cube4 leads to deadlocks for some extreme combinations of fault regions
Keywords :
fault tolerant computing; multiprocessor interconnection networks; network routing; deadlock; f-cube4; fault-tolerant; meshes; multiple faulty regions; virtual channels; wormhole routing; Clocks; Computational modeling; Concurrent computing; Fault tolerance; Mesh networks; Routing; Shape; System recovery; Tin;
Journal_Title :
Computers, IEEE Transactions on
