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A Hierarchical Torus Network (HTN) is a 2D-torus network of multiple basic modules, in which the basic modules are 3D-torus networks that are hierarchically interconnected for higher level networks. The dynamic communication performance of the HTN using the dimension-order routing under common traffic patterns have been evaluated, and have been shown to be good. However, dynamic communication performance...
The static network performance and dynamic communication performance of the Hierarchical Torus Network (HTN) using dimension-order routing algorithm have already been evaluated and shown to be superior to the performance of other interconnection networks. However, the assessment of the dynamic communication performance improvement of HTN by the efficient use of both the physical link and virtual channels...
A Modified Hierarchical 3D-Torus (MH3DT) network is a 3D-torus network of multiple basic modules, in which the basic modules are themselves 3D-torus networks which are hierarchically interconnected into higher-level networks. The static network performance of the MH3DT has already been studied and has been shown to be good. Dynamic communication performance has been evaluated using dimension-order...
With increasing probability of failure and reliability concerns for interconnection networks, fault-tolerance is quickly becoming an integral part of such systems. It is therefore critical to provide an efficient fault-tolerant mechanism to keep the system running, even in the presence of faults. In this paper a distributed fault-tolerant routing methodology for mesh networks is proposed which supports...
The interconnection network communicates and links together the processing units of modern high-performance computing systems. In this context, network faults have an extremely high impact since most routing algorithms were not designed to tolerate faults. Because of this, just a single fault may stall messages in the network, preventing the finalization of applications, or may lead to deadlocked...
A new deadlock-free dynamic routing algorithm is proposed for wormhole-switched network-on-chip. Introducing the concept of multilevel congestion-aware mechanism which conveys more accurate feedback information about network congestion status than the DyAD routing, the proposed algorithm adopt proper routing algorithm to forward packets according to the current congestion level. Simulation results...
The intensive and continuous use of high-performance computing systems for executing computationally intensive applications, coupled with the large number of elements that make them up, dramatically increase the likelihood of failures during their operation. Clearly, network faults have an extremely high impact because most routing algorithms are not designed to tolerate faults. In such algorithms,...
In this paper, we present a deadlock-free routing algorithm for the Tori connected mESH (TESH) network using 2 virtual channels - 2 being the minimum number for dimension-order routing - and evaluate the networks dynamic communication performance under the hot-spot traffic pattern, using the proposed routing algorithm. We evaluate the dynamic communication performance of TESH, mesh, and torus networks...
Interconnection networks play a crucial role in the performance of massively parallel computers. Hierarchical interconnection networks provide high performance at low cost by exploring the locality that exists in the communication patterns of massively parallel computer systems. The Tori-connected mESH (TESH) Network is a 2D-torus network of multiple basic modules, in which the basic modules are 2D-mesh...
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