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Accelerators have emerged as an important component of modern cloud, datacenter, and HPC computing environments. However, launching tasks on remote accelerators across a network remains unwieldy, forcing programmers to send data in large chunks to amortize the transfer and launch overhead. By combining advances in intra-node accelerator unification with one-sided Remote Direct Memory Access (RDMA)...
Trust is the cornerstone of success in any relationship between two or more parties. Current technologies to include cloud computing, social networking, and mobile applications, coupled with the explosion in storage and processing power, are evolving large-scale marketplaces for a wide variety of resources and services. In such marketplaces, users (consumer, provider and broker) are largely autonomous...
Distributed systems built in open competitive and highly dynamic pervasive environments are composed of autonomous entities that act and interact in an intelligent and flexible manner so as to achieve their own goals and aims. System entities may be classified into two main categories that are, in principle, in conflict. These are the service resource requestors (SRRs) wishing to use services and/or...
The ability of cyber defence systems to support rich sensing, fast response, intelligent decision making and a high degree of autonomy places many demands on the functionality of supporting middleware platforms, necessitating, for example, flexible data persistence that does not rely on dedicated resource pools, as well as reliable, decentralized communications. In this paper we describe the UNISON...
This paper exposes a set of tools which can be used to quantitatively evaluate the required effort to update the software system that operates a general purpose service mobile robot. These tools are used to compare a Blackboard-based and a Peer-to-Peer architectures in the context of mobile robotics. The analysis consider the development cost for an update, as well as the response time for both architectures...
When migrating applications between devices during runtime, one has achieved application mobility. In this paper we present the XAM system, providing application mobility through a peer-to-peer based solution over heterogeneous networks. Our architecture takes into consideration established requirements of application mobility, being application identification and distribution; context-awareness and...
Successful deployment of the pervasive computing paradigm is based on the exploitation of the multitude of participating devices and associated data. It becomes therefore evident that there is a necessity to provide optimal resource discovery mechanisms, the effectiveness of which will constitute the foundation for the efficient operation of pervasive computing environments. To mitigate the drawbacks...
Presence service is used to publish and discover end-users' context information. It is the basis of a wide range of end-user services. It is deployed using a wide range of technologies, which hampers interoperability. This paper proposes a peer to peer infrastructure for enabling a universal presence service, a service that will enable end-users with multiple presence accounts in domains with different...
Since 1960, lots of AI researchers work on intelligent and reactive architectures able to manage multiple events and act in the environment. This issue is also part of Robotics domain. A decision process must be implemented in the robot brain to accomplish the multimodal interaction with human in human environment. In this article, we present a semantic agents architecture giving the robot the ability...
Pervasive Service Computing applies service composition and pervasive computing into managing user's complex everyday activities. To identify the nature of Pervasive Service Computing, we investigate a generic service-oriented pervasive computing scenario - `pervasive campus'. We identify the characteristics of Pervasive Service Computing to be: service-oriented approach, explicit description of user's...
This paper deals with high performance Peer-to-Peer computing applications. We concentrate on the solution of large scale numerical simulation problems via distributed iterative methods. We present the current version of an environment that allows direct communication between peers. This environment is based on a self-adaptive communication protocol. The protocol configures itself automatically and...
A self adaptive communication protocol is proposed for peer to peer distributed computing. This protocol can configure itself automatically in function of application requirements and topology changes by choosing the most appropriate communication mode between peers. The protocol was designed in order to be used in conjunction with a decentralized environment for high performance distributed computing...
Incorporating service composition and pervasive computing into managing user's complex everyday activities envisions the paradigm of pervasive service composition for everyday life. Context-aware pervasive service composition (CAPSC) enables a pervasive system to provide a user with service compositions that are relevant to the user's context. Moreover, CAPSC enables composition applications that...
Health care systems will integrate new computing paradigms in the coming years. Context awareness computing is a research field which often refers to health care as an interesting and rich area of application. One of the areas for context aware computing is social awareness amongst a group of individuals. Providing individuals with social awareness about other coworkers is very important in order...
With the emergence of pervasive computing environments, mobile information sharing and retrieval is becoming an exciting domain that challenges information scientists. In this paper, we describe a hybrid peer to peer context-aware framework for building mobile information sharing applications. A scalable and flexible architecture based on JXTA is presented. The architecture called "JHPeer"...
Requirements from new types of applications call for new database system solutions. Computational science applications performing distributed computations on grid networks with requirements for efficient storage and query solutions are now emerging. For this purpose we have developed DASCOSA-DB, a P2P-based distributed database system, which in addition to providing location-transparent storage and...
This paper describes a service-oriented P2P architecture and related federated metaprogramming model to support development of highly scalable and reliable distributed collaborative applications. In the proposed architecture, autonomic service providers, corresponding to various activities that occur in the collaborative process, reside on the overlay network and are discovered dynamically during...
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