Now showing items 29-48 of 56

    • Efficient Mapping for Message-Passing Applications Using the TTIG Model: A Case Study in Image Processing 

      Roig Mateu, Concepció; Ripoll, A.; Borrás, Javier; Luque, Emilio (Springer Verlag, 2001)
      In this paper we describe the development and performance of an image processing application with functional parallelism within the PVM framework. The temporal behaviour of the application is statically modelled with ...
    • EMPOWERING, a Smart Big Data Framework for Sustainable Electricity Suppliers 

      Mor, Gerard; Vilaplana Mayoral, Jordi; Danov, Stoyan; Cipriano, Jordi; Solsona Tehàs, Francesc; Chemisana Villegas, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      This paper presents the EMPOWERING project, a Big Data environment aimed at helping domestic customers to save electricity by managing their consumption positively. This is achieved by improving the information received ...
    • Enhancing throughput for streaming applications running on cluster systems 

      Guirado Fernández, Fernando; Roig Mateu, Concepció; Ripoll, A. (Elsevier, 2013)
      The exploitation of throughput in a parallel application that processes an input data stream is a difficult challenge. For typical coarse-grain applications, where the computation time of tasks is greater than their ...
    • Exploiting Knowledge of Temporal Behaviour in Parallel Programs for Improving Distributed Mapping 

      Roig Mateu, Concepció; Ripoll, A.; Senar, M.A.; Guirado Fernández, Fernando; Luque, Emilio (Springer Verlag, 2000)
      In the distributed processing area, mapping and scheduling are very important issues in order to exploit the gain from parallelization. The generation of efficient static mapping techniques implies a previous modelling ...
    • Exploiting parallelism on progressive alignment methods 

      Orobitg Cortada, Miquel; Guirado Fernández, Fernando; Notredame, Cedric; Cores Prado, Fernando (Springer Verlag, 2011)
      Multiple Sequence Alignment (MSA) constitutes an extremely powerful tool for important biological applications such as phylogenetic analysis, identification of conserved motifs and domains and structure prediction. In ...
    • Exploiting Throughput for Pipeline Execution in Streaming Image Processing Applications 

      Guirado Fernández, Fernando; Ripoll, A.; Roig Mateu, Concepció; Hernàndez, A.; Luque, Emilio (Springer Verlag, 2006)
      There is a large range of image processing applications that act on an input sequence of image frames that are continuously received. Throughput is a key performance measure to be optimized when executing them. In this ...
    • Exploiting Traffic Balancing and Multicast Efficiency in Distributed Video-on-Demand Architectures 

      Cores Prado, Fernando; Ripoll, A.; Qazzaz, Bahjat; Suppi, Remo; Yang, Xiaoyuan; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
      Distributed Video-on-Demand (DVoD) systems are proposed as a solution to the limited streaming capacity and null scalability of centralized systems. In a previous work, we proposed a fully distributed large-scale ...
    • Fully distributed authentication with locality exploitation for the CoDiP2P peer-to-peer computing platform 

      Cores Prado, Fernando; Guirado Fernández, Fernando; Naranjo, J. A. M.; Casado, L. G. (Springer Verlag, 2013)
      CodiP2P is a distributed platform for computation based on the peer-topeer paradigm. This article presents a novel distributed authentication method that suits the platform and adapts to its characteristics. The developed ...
    • H-PC: a cloud computing tool for supervising hypertensive patients 

      Vilaplana Mayoral, Jordi; Solsona Tehàs, Francesc; Abella i Pons, Francesc; Cuadrado, Josep; Teixidó Torrelles, Ivan; Mateo Fornés, Jordi; Rius Torrentó, Josep Maria (Springer Verlag, 2015)
      Hypertension or high blood pressure is a condition on the rise. Not only does it affect the elderly but it is also increasingly spreading to younger sectors of the population. Treating it involves exhaustive monitoring of ...
    • Identification of line-specific strategies for improving carotenoid production in synthetic maize through data-driven mathematical modeling 

      Comas, Jorge; Benfeitas, Rui; Vilaprinyo Terré, Ester; Sorribas Tello, Albert; Solsona Tehàs, Francesc; Farré Martinez, Gemma; Berman Quintana, Judit; Zorrilla López, Uxue; Capell Capell, Teresa; Sandmann, Gerhard; Zhu, Changfu; Christou, Paul; Alves, Rui (Wiley online library, 2016)
      Plant synthetic biology is still in its infancy. However, synthetic biology approaches have been used to manipulate and improve the nutritional and health value of staple food crops such as rice, potato and maize. With ...
    • Implementing and Analysing an Effective Explicit Coscheduling Algorithm on a NOW 

      Solsona Tehàs, Francesc; Giné, Francesc; Molina, Fermín; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2001)
      Networks of workstations (NOWs) have become important and cost-effective parallel platforms for scientific computations. In practice, a NOW system is heterogeneous and non-dedicated. These two unique factors make ...
    • Implementing Explicit and Implicit Coscheduling in a PVM Environment 

      Solsona Tehàs, Francesc; Giné, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2000)
      Our efforts are directed towards the understanding of the coscheduling mechanism in a NOW system when a parallel job is executed with local workloads, balancing parallel efficiency against the local interactive response. ...
    • Incentive mechanism for scheduling jobs in a peer-to-peer computing system 

      Rius Torrentó, Josep Maria; Estrada, Soraya; Cores Prado, Fernando; Solsona Tehàs, Francesc (Elsevier, 2012)
      Peer-to-Peer (P2P) computing, the harnessing of idle CPU cycles through the Internet, offers new research challenges in distributed computing. One of the most critical aspects in the design of P2P systems is the development ...
    • MemTo: A Memory Monitoring Tool for a Linux Cluster 

      Giné, Francesc; Solsona Tehàs, Francesc; Navarro, Xavi; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2001)
      Studies dealing with tuning, performance debugging and diagnosis in cluster environments largely benefit from in-depth knowledge of memory system information. In this paper a tool (called MemTo) for monitoring the ...
    • MetaLoRaS: A Predictable MetaScheduler for Non-dedicated Multiclusters 

      Lérida Monsó, Josep Lluís; Solsona Tehàs, Francesc; Giné, Francesc; Hanzich, Mauricio; Hernández, P.; Luque, Emilio (Springer Verlag, 2006)
      The main aim of this work is to take advantage of the computer resources of a single organization or Multicluster system to execute distributed applications efficiently without excessively damaging the local users. In ...
    • MetaLoRaS: A Re-scheduling and Prediction MetaScheduler for Non-dedicated Multiclusters 

      Lérida Monsó, Josep Lluís; Solsona Tehàs, Francesc; Giné, Francesc; Hanzich, Mauricio; García, J. R.; Hernández Budé, Porfidio (Springer Verlag, 2007)
      Recently, Multicluster environments have become more important in the high-performance computing world. However, less attention has been paid to non-dedicated Multiclusters. We are developing MetaLoRaS, an efficient ...
    • Minimizing Paging Tradeoffs Applying Coscheduling Techniques in a Linux Cluster 

      Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
      Our research is focused on keeping both local and parallel jobs together in a non-dedicated cluster or NOW (Network of Workstations) and efficiently scheduling them by means of coscheduling mechanisms. The performance ...
    • Monito: A Communication Monitoring Tool for a PVM-Linux Environment 

      Solsona Tehàs, Francesc; Giné, Francesc; Lérida Monsó, Josep Lluís; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2000)
      In this paper a new tool for monitoring the different queues of messages in a PVM environment is presented. The main aim of implementing this facility is to provide a means of capturing the bottlenecks and overheads of ...
    • MPI-based implementation of an enhanced algorithm to solve the LPN problem in a memory-constrained environment 

      Teixidó Torrelles, Ivan; Sebé Feixas, Francesc; Conde Colom, Josep; Solsona Tehàs, Francesc (Elsevier, 2014)
      In recent years, several lightweight cryptographic protocols whose security lies in the assumed intractability of the learning parity with noise (LPN) problem have been proposed. The LPN problem has been shown to be ...
    • Multiprogramming Level of PVM Jobs in a Non-dedicated Linux NOW 

      Giné, Francesc; Solsona Tehàs, Francesc; Barrientos, Jesus; Hernandez, Porfidio; Hanzich, Mauricio; Luque, Emilio (Springer Verlag, 2003)
      Our research is focussed on keeping both local and PVM jobs together in a time-sharing Network Of Workstations (NOW) and efficiently scheduling them by means of dynamic coscheduling mechanisms. In this framework, we ...