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In distributed applications, a group of multiple process are cooperating with each other by exchanging messages in underlying networks. A message sent by each process has to be delivered to every process in a group. In this paper, we discuss a protocol for reliably, efficiently transmitting messages to every operational process in a group. We assume that each process can send messages to only neighboring...
Application processes have to be efficiently performed on servers in a cluster with respect to not only performance but also energy consumption. In this paper, we consider a process migration (MG) approach to energy-efficiently performing an application process on servers in a cluster. In this paper, we propose a model to estimate the energy consumption of a server to perform processes. First, a process...
Application processes are performed on servers in a cluster. Here, processes have to be not only reliably performed in presence of server faults but also the total electric power consumed by servers has to be reduced. The more number of replicas, the more reliably a process can be performed but the more amount of electric power is consumed by the servers. In this paper, we consider a mobile agent...
In energy-aware information systems, it is critical to discuss how to select a server for each request from clients in order to not only achieve performance objectives but also reduce the total power consumption of a system. In addition, application requests have to be reliably performed in presence of server faults. In our previous studies, the improved power consumption laxity based (IPCLB) algorithm...
In this paper, we consider the peer-to-peer (P2P) model as a fully distributed, scalable system different from centralized coordinated systems like Cloud computing systems. A P2P system is composed of peer processes (peers). Here, applications are realized in activities and cooperation of a group of multiple peers. Since there is no centralized coordination in P2P systems, each peer has to obtain...
Information systems are being shifted to scalable architectures like Cloud and peer-to-peer (P2P) models. In this paper, we consider the P2P model as a fully distributed, scalable system different from centralized coordination systems in Cloud and Grid systems. A P2P system is composed of peer processes (peers). Here, applications are realized by activities and cooperation among multiple peers. In...
Information systems are being shifted to scalable architectures like Cloud and peer-to-peer (P2P) models. In this paper, we consider the P2P model as a fully distributed, scalable system different from centralized coordination systems in Cloud and Grid systems. A P2P system is composed of peer processes (peers). Here, applications are realized by activities and cooperations among multiple peers. In...
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