Enviaments recents

  • Integration of decentralized economic models for resource self-management in application layer networks 

    Chacín Martínez, Pablo; Freitag, Fèlix; Navarro Moldes, Leandro; Chao, Isaac; Ardáiz Villanueva, Óscar (Springer, 2005)
    Text en actes de congrés
    Accés obert
    Resource allocation is one of the challenges for self-management of large scale distributed applications running in a dynamic and heterogeneous environment. Considering Application Layer Networks (ALN) as a general term ...
  • Elaborating a decentralized market information system 

    Brunner, René; Freitag, Fèlix (Springer, 2007)
    Comunicació de congrés
    Accés obert
    A Decentralized Market Information System (DMIS) that aggregates and provides information about markets is an important component for achieving markets in Grid and Peer-to-Peer systems. The proposed work is the development ...
  • Assessing a distributed market infrastructure for economics-based service selection 

    Brunner, René; Chao, Isaac; Chacín Martínez, Pablo; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Joita, Liviu; Rana, Omer (Springer, 2007)
    Comunicació de congrés
    Accés obert
    Service selection is an important issue for market-oriented Grid infrastructures. However, few results have been published on the use and evaluation of market models in deployed prototypes, making it difficult to assess ...
  • Predicting MPI buffer addresses. 

    Freitag, Fèlix; Farreras Esclusa, Montserrat; Cortés, Toni; Labarta Mancho, Jesús José (Springer, 2004)
    Comunicació de congrés
    Accés obert
    Communication latencies have been identified as one of the performance limiting factors of message passing applications in clusters of workstations/multiprocessors. On the receiver side, message-copying operations contribute ...
  • Performance measuring framework for grid market middleware 

    Freitag, Fèlix; Chacín Martínez, Pablo; Chao, Isaac; Brunner, René; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar (Springer, 2007)
    Comunicació de congrés
    Accés obert
    Current implementations of Grid infrastructures provide frameworks which aim at achieve on-demand computing. In such a scenario, contribution and use of resources will be governed by business models. The challenge is to ...
  • Group-awareness for mobile cooperative learning. 

    Meseguer Pallarès, Roc; Navarro Moldes, Leandro; Reyes Muñoz, María Angélica (IEEE, 2006-11-16)
    Text en actes de congrés
    Accés obert
    Collaborative learning traditionally relies on the arrangement of space and physical artifacts to mediate group activities. Our claim is that CSCL environments should enhance collaborative learning in a complementary way ...
  • WWG: a wide-area infrastructure for group work 

    Marquès Puig, Joan Manel; Navarro Moldes, Leandro (IEEE, 2001)
    Text en actes de congrés
    Accés obert
    Group learning at Internet scale is becoming more frequent in university courses. This complex process requires support by distributed computing learning infrastructures. This paper describes the design of WWG: a distributed ...
  • P2P architecture for scientific collaboration. 

    Mitre Silva, José; Navarro Moldes, Leandro (IEEE, 2004)
    Text en actes de congrés
    Accés obert
    P2P networks are often associated with file exchange applications among private users. However, their features make them suitable for other uses. In this paper we present a P2P architecture for scientific collaboration ...
  • Extending the scope of asynchronous collaboration: a matter of being autonomous and self-sufficient 

    Marquès Puig, Joan Manel; Navarro Moldes, Leandro; Daradoumis, Athanasios (IEEE, 2004-06)
    Text en actes de congrés
    Accés obert
    Asynchronous collaborative applications and systems have to deal with complexities associated with interaction nature, idiosyncrasy of groups and technical and administrative issues. Inclusion of requirements derived from ...
  • Xweb: a framework for application network deployment in a programmable internet service infrastructure 

    Ardáiz Villanueva, Óscar; Navarro Moldes, Leandro (IEEE, 2004)
    Text en actes de congrés
    Accés obert
    An application network consists of a number of application servers distributed throughout the Internet, connected and coordinated to provide services with low latency. Adding, removing and migrating servers, application ...
  • Multicast injection for application network deployment. 

    Ardáiz Villanueva, Óscar; Freitag, Fèlix; Navarro Moldes, Leandro (IEEE, 2001)
    Text en actes de congrés
    Accés obert
    Introduction of new services on the Internet is a laborious, time-consuming task. Application networks, applications being serviced through multiple interconnected service nodes disseminated across the Internet for better ...
  • Jacobi orderings for multi-port hypercubes. 

    Royo Vallés, María Dolores; González Colás, Antonio María; Valero García, Miguel (IEEE, 1998-03)
    Text en actes de congrés
    Accés obert
    The communication cost plays a key role in the performance of many parallel algorithms. In the particular case of the one-sided Jacobi method for symmetric eigenvalue and eigenvector computation the communication cost of ...

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