Large scale systems 

About: Large scale systems is an academic journal. The journal publishes majorly in the area(s): Scale (ratio) & Decision theory. It has an ISSN identifier of 0167-420X. Over the lifetime, 101 publications have been published receiving 1213 citations.

Analysis of a large scale vehicle routing problem with an inventory component

Abstract: Description d'un systeme de distribution integre base sur l'optimisation, couramment developpe pour une grande entreprise commerciale. Le probleme de distribution est tel qu'il est necessaire de prevoir les demandes des consommateurs, de choisir un sous ensemble de consommateurs, et de generer des itineraires journaliers pour les vehicules

Totally Ordered Multicast in Large-Scale Systems

Abstract: Totally ordered multicast protocols have proved to be extremely useful in supporting fault-tolerant distributed applications. This paper compares the performance of the two main classes of protocols providing total order in large-scale systems: token-site and symmetric protocols. The paper shows that both classes of protocols can exhibit a latency close to 2D, where D is the message transit delay between two processes. In the face of these observations, the paper makes the following contributions: it presents a rate-synchronization scheme for symmetric protocols that exhibits a latency close to D+t, where t is the inter-message transmission time; it proposes a new hybrid protocol and shows that the hybrid scheme for heterogeneous topologies performs better than any of the previous classes of protocols in isolation; finally, the paper presents an algorithm that allows a process to dynamically adapt to changes in throughput and in network delays. The combination of these three techniques results in a dynamic hybrid scheme that, when applied to systems where the topology/traffic patterns are not known a priori, offers a much lower latency than non-hybrid approaches.

Optimization of large multiclass (non-product. form queueing networks using perturbation analysis

Abstract: On passe en revue l'etat de la recherche sur les techniques d'analyse de perturbation, et on presente un exemple de reseau d'attente complexe qui illustre l'utilisation de ces techniques dans de nouveaux cas particuliers