Now showing items 1-15 of 15

    • Adjusting the Lengths of Time Slices when Scheduling PVM Jobs with High Memory Requirements 

      Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2002)
      Our research is focussed on keeping both local and parallel jobs together in a non-dedicated cluster and scheduling them efficiently. In such systems, the overflow of the physical memory into the virtual memory usually ...
    • Adjusting Time Slices to Apply Coscheduling Techniques in a non-dedicated NOW 

      Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2002)
      Our research is focussed on keeping both local and parallel jobs together in a time-sharing NOW and efficiently scheduling them by means of coscheduling mechanisms. In such systems, the proper length of the time slice ...
    • Cooperating Coscheduling in a Non-dedicated Cluster 

      Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
      Our research is focussed on keeping both local and parallel jobs together in a time-sharing NOW. In such systems, new scheduling approaches are needed to allocate the underloaded resources among parallel jobs. In this ...
    • Coscheduling and Multiprogramming Level in a Non-dedicated Cluster 

      Hanzich, Mauricio; Giné, Francesc; Hernandez, Porfidio; Solsona Tehàs, Francesc; Luque, Emilio (Springer Verlag, 2004)
      Our interest is oriented towards keeping both local and parallel jobs together in a time-sharing non-dedicated cluster. In such systems, dynamic coscheduling techniques, without memory restriction, that consider the ...
    • Dealing with Memory Constraints in a Non-Dedicated Linux Cluster 

      Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (SAGE, 2003)
      Our research is focused on keeping both local and parallel jobs together in a non-dedicated cluster and scheduling them efficiently. In such a system, memory becomes a critical resource for both kinds of job. Thus, the ...
    • 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 ...
    • 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. ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Predictive Coscheduling Implementation in a non-dedicated Linux Cluster 

      Solsona Tehàs, Francesc; Giné, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2001)
      Our research is focussed 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. A real implementation ...
    • State-based predictions with self-correction on Enterprise Desktop Grid environments 

      Lérida Monsó, Josep Lluís; Solsona Tehàs, Francesc; Hernandez, Porfidio; Giné, Francesc; Hanzich, Mauricio; Conde Colom, Josep (Elsevier, 2013)
      The abundant computing resources in current organizations provide new opportunities for executing parallel scientific applications and using resources. The Enterprise Desktop Grid Computing (EDGC) paradigm addresses the ...
    • Supporting Caching and Mirroring in Distributed Video-on-Demand Architectures 

      Yang, X. Y.; Cores Prado, Fernando; Ripoll, A.; Hernandez, Porfidio; Qazzaz, Bahjat; Suppi, Remo; Luque, Emilio (Springer Verlag, 2004)
      Distributed Video-on-Demand (DVoD) systems are proposed as a solution to the limited streaming capacity and null scalability of centralized systems. In such full decentralized architectures with storage constraints, ...