DSG - Distributed Systems Group: Enviaments recents

Ara es mostren els items 1-12 de 35

    • The catallaxy approach for decentralized economic-based allocation in Grid resource and service markets. 

      Ardáiz Villanueva, Óscar; Artigas Vidal, Pau; Eymann, Torsten; Freitag, Fèlix; Navarro Moldes, Leandro; Reinicke, Michael (Springer, 2006)
      Article
      Accés obert
      Efficient resource allocation in dynamic large-scale environments is one of the cha llenges of Grids. In centralized economic-based allocation approaches, the user requests can be matched to the fastest, cheapest or most ...

    • 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 ...

    • A Hayekian self-organization approach to service allocation in computing systems 

      Eymann, Torsten; Reinicke, Michael; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Artigas Vidal, Pau (Elsevier, 2005)
      Article
      Accés obert
      Future ‘on-demand’ computing systems, often depicted as potentially large scale and complex Service-Oriented Architectures, will need innovative management approaches for controlling and matching services demand and supply. ...

    • A catallactic market for data mining services. 

      Joita, Liviu; Rana, Omer; Freitag, Fèlix; Chao, Isaac; Chacín Martínez, Pablo; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar (2007)
      Article
      Accés obert
      We describe a Grid market for exchanging data mining services based on the Catallactic market mechanism proposed by von Hayek. This market mechanism allows selection between multiple instances of services based on operations ...

    • 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 ...