This paper presents and analyses a low cost and high performance manufacturing communication system. It consists in the standard TOP profile implemented in single processor computer connected to a IEEE 802.3 LAN. High throughput is achieved by an efficient implementation architecture based on specific layer interfaces and data structures, specialized mechanisms of memory management, timer manag...

Clusters of commodity machines have become a popular way of building cheap high performance parallel computers. Many of these designs rely on standard Ethernet networks as a system interconnect. We have profiled the performance of some standard message passing communication on commodity clusters using MPIBench, a tool for benchmarking the performance of MPI routines that uses a highly accurate,...

Cloud computing infrastructures provide vast processing power and host a diverse set of computing workloads, ranging from service-oriented deployments to HighPerformance Computing (HPC) applications. As HPC applications scale to a large number of VMs, providing near-native network I/O performance to each peer VM is an important challenge. In this paper we present Xen2MX, a paravirtual interconn...

Message passing libraries such as Parallel Virtual Machine (PVM) and Message Passing Interface (MPI) provide a common Application Programming Interface (API) to implement parallel programs across multiple computers. Such libraries provide a means to program a collection of normally independent computers to work cooperatively on a single computation. However, for programs written in C and Fortra...

Fat trees and low dimensional toroidal cubes have raised a great interest in the scientiic community in the last few years and are emerging standards in the design of interconnection networks for massively parallel computers. In this thesis we compare the communication performance of these two classes of wormhole interconnection networks using a detailed simulation model. The comparison is made...

For a grid network performance data set, we estimate propagation distances to get a lower bound on propagation delays. With a model for primary performance factors and assumptions about expected performance trends, we extrapolate to estimate the communication performance of a global grid in ten years time. Communication pipes are getting fatter, but due to simple propagation delays, are not get...

This paper presents several ideas pertaining to desirable properties associated with protocols for moving large amounts of data over a grid of high performance computers. The protocol enhancements are discussed in terms of their scalability and identifying sources of potential protocol redundancy. In the context of this paper it is scalability as it relates to the transport of increasingly larg...

Infrastructure V2X communication systems are one of the main topics in research domain. Its performance evaluation is an important step before their on board's integration into vehicles and its probable real deployment. Being the first of a series of three publications, this paper studies the physical layer PHY of the upcoming vehicular communication standard IEEE 802.11p. An IEEE.802.11p PHY m...

Researchers and developers typically rely on analytical techniques, simulation-based approaches or real-world experiments for the performance evaluation of communication systems. All of these methods have unique strengths. Network simulations are well suitable for conducting virtual experiments of very high scale; the deterministic and thus repeatable execution of simulations also make them an ...