The Eternal system provides transparent fault tolerance for CORBA applications, without requiring the modification of either the application or the ORB. Eternal replicates the application objects, and ensures strong replica consistency by employing a reliable totally-ordered multicast protocol for conveying the IIOP messages of the application. To achieve strong replica consistency during recov...

This paper proposes MUREX, a mutable replica control scheme, to keep one-copy equivalence for synchronous replication in structured P2P storage systems. For synchronous replication in P2P networks, it is proper to adopt crash-recovery as the fault model; that is, nodes are fail-stop and can recover and rejoin the system after synchronizing their state with other active nodes. In addition to the...

Restoring and non-restoring divider has become widely applicability in the era of digital computing application due to its computation speed. In this paper, we have proposed the design of divider of different architecture for the computation of Vedic sutra based. The design of divider in the Vedic mode results in high computation throughput due to its replica architecture, where latency is mini...

Parallel tempering (PT), also known as replica exchange, is a powerful Markov Chain Monte Carlo sampling approach, which aims at reducing the relaxation time in simulations of physical systems. In this paper, we present a novel decentralized parallel implementation of PT using the message passing interface (MPI) and the scalable parallel random number generators (SPRNG) library. By taking advan...

Numerous replica placement algorithms have been proposed in the literature for use in content delivery networks. However, little has been done to compare the various placement algorithms against each other and against caching. This paper debates whether we need replica placement algorithms in content delivery networks or not. The paper uses extensive evaluation of algorithms, systems and web wo...

Power conservation and extending survival time are critical issues in mobile ad hoc networks, as the nodes are powered by battery only. In this paper, according to the mobility of nodes, the survival-time-based adaptive replica allocation algorithm is proposed. In the survival-time-based dynamic adaptive replica allocation algorithm, based on the locality of data access, the replica allocation ...

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In this Letter we study the NP-complete vertex cover problem on finite connectivity random graphs. When the allowed size of the cover set is decreased, a discontinuous transition in solvability and typical-case complexity occurs. This transition is characterized by means of exact numerical simulations as well as by analytical replica calculations. The replica symmetric phase diagram is in excel...

A novel area-efficient dual replica-bitline delay technique is proposed in this brief to improve process-variation-tolerance of low voltage SRAM application. This strategy suppresses the timing variation by adding one another replica-bitline and introducing novel replica cell which has the same size as conventional. Simulation results in TSMC 65nm LP technology show that more than 32.3% timing ...