Deadlock-Free Message Routing in Multiprocessor Interconnection Networks
IEEE Transactions on Computers
Warp: an integrated solution of high-speed parallel computing
Proceedings of the 1988 ACM/IEEE conference on Supercomputing
A framework for adaptive routing in multicomputer networks
SPAA '89 Proceedings of the first annual ACM symposium on Parallel algorithms and architectures
VLSI and parallel computation
Network and processor architecture for message-driven computers
VLSI and parallel computation
Planar-adaptive routing: low-cost adaptive networks for multiprocessors
ISCA '92 Proceedings of the 19th annual international symposium on Computer architecture
A New Theory of Deadlock-Free Adaptive Routing in Wormhole Networks
IEEE Transactions on Parallel and Distributed Systems
Fault-tolerant wormhole routing in tori
ICS '94 Proceedings of the 8th international conference on Supercomputing
A Family of Fault-Tolerant Routing Protocols for Direct Multiprocessor Networks
IEEE Transactions on Parallel and Distributed Systems
Fault-tolerant routing with non-adaptive wormhole algorithms in mesh networks
Proceedings of the 1994 ACM/IEEE conference on Supercomputing
A Fault-Tolerant Communication Scheme for Hypercube Computers
IEEE Transactions on Computers
Fault-Tolerant Wormhole Routing Algorithms for Mesh Networks
IEEE Transactions on Computers
IEEE Transactions on Parallel and Distributed Systems
Deadlock-Free Adaptive Routing in Multicomputer Networks Using Virtual Channels
IEEE Transactions on Parallel and Distributed Systems
Design of a Router for Fault-Tolerant Networks
PCRCW '94 Proceedings of the First International Workshop on Parallel Computer Routing and Communication
The Reliable Router: A Reliable and High-Performance Communication Substrate for Parallel Computers
PCRCW '94 Proceedings of the First International Workshop on Parallel Computer Routing and Communication
Adaptive Multimodule Routers for Multiprocessor Architectures
Information Systems Frontiers
Fault-tolerant wormhole routing with 2 virtual channels in meshes
Journal of Computer Science and Technology
Fault-tolerant wormhole routing algorithm in 2D meshes without virtual channels
ISPA'04 Proceedings of the Second international conference on Parallel and Distributed Processing and Applications
| Hi-index | 0.00 |
The current fault-tolerant routing methods require extensive changes to practical routers such as the Cray T3D's dimension-order router to handle faults. In this paper, we propose methods to handle faults in multicomputers with dimension-order routers with simple changes to router structure and logic. Our techniques can be applied to current implementations in which the router is partitioned into multiple modules and no centralized crossbar is used. We consider arbitrarily located faulty blocks and assume only local knowledge of faults. We apply our techniques for torus networks and show that, with as few as four virtual channels per physical channel, deadlock- and livelock-free routing can be provided even with multiple faults and multimodule implementation of routers. Our simulations of the proposed technique for 2D tori and mesh indicate that the performance degradation is similar to that seen in the case of cross-bar based designs previously proposed.