The interconnection network is an essential component of a distributed system or of a supercomputer based on large-sale parallel processing. Because in distributed systems the communication between processors is based on message exchange, the network topology is of a great importance. The interconnection network can be seen as a graph and the properties of a network can be studied using combina...

Performance anomalies involving interconnection networks have largely remained a “black box” for developers relying on traditional CPU profilers. Network-side profilers collect aggregate statistics and lack source-code attribution. We have incorporated an effective protocol extension in the Gen-Z communication protocol for tagging network packets in an interconnection network; additionally, we ...

Based on defined User-to-Network Interconnection (UNI) as well as Network-to-Network Interconnection (NNI) types various interconnection modes are practicable. These modes allow a further description of interconnection models as well as architecture models including interconnection functions and related interfaces. Topics covered in this article comprise functional entities and related interfac...

Interconnection network is one of the most important problems in designing massively parallel machines. Interconnection network must be designed to balance the processing speed and communication speed. This problem becomes more serious when the scale of the machine is huge. Our research aims to propose mechanisms for interconnection network that is expandable toward million processor systems. A...

In interconnection networks, there are several problems related to deadlock. We shall address deadlocks in the context of modularity, shortest path routing in irregular networks and fault tolerance. Deadlock freedom in interconnection networks is not a modular issue. One cannot generally combine two or more deadlock free interconnection network configurations without introducing new deadlock pr...

Interconnection network performance is a key factor when constructing parallel computers. The choice of an interconnection network used in a parallel computer depends on a large number of performance factors which are very often applications dependent. We try in this paper to give the outlines of a performance evaluation and comparison methodology using what we think of as the most important pa...

We examine the interrelation between interconnection and competition in the Internet backbone market. Networks that are asymmetric in size choose among different interconnection regimes and compete for end-users. We show that a direct interconnection regime, peering, softens competition as compared to indirect interconnection since asymmetries become less influential when networks peer. If inte...