Now showing items 1-10 of 10

  • A hybrid web server architecture for secure e-business web applications 

    Beltran Querol, Vicenç; Carrera Pérez, David; Guitart Fernández, Jordi; Torres Viñals, Jordi; Ayguadé Parra, Eduard (2005-09)
    Article
    Restricted access - publisher's policy
    Nowadays the success of many e-commerce applications, such as on-line banking, depends on their reliability, robustness and security. Designing a web server architecture that keeps these properties under high loads is a ...
  • Accelerating software memory compression on the Cell/B.E. 

    Beltran Querol, Vicenç; Martorell Bofill, Xavier; Torres Viñals, Jordi; Ayguadé Parra, Eduard (2008)
    Conference report
    Restricted access - publisher's policy
    The idea of transparently compressing and decompressing the content of main memory to virtually enlarge their capacity has been previously proposed and studied in the literature. The rationale behind this idea lies in the ...
  • Achieving high memory performance from heterogeneous architectures with the SARC programming model 

    Ferrer, Roger; Beltran Querol, Vicenç; González Tallada, Marc; Martorell Bofill, Xavier; Ayguadé Parra, Eduard (ACM, 2009)
    Conference lecture
    Restricted access - publisher's policy
    Current heterogeneous multicore architectures, including the Cell/B.E., GPUs, and future developments, like Larrabee, require enormous programming efforts to efficiently run current parallel applications, achieving high ...
  • BSC contributions in energy-aware resource management for large scale distributed systems 

    Valero Cortés, Mateo; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Carrera Pérez, David; Guitart Fernández, Jordi; Beltran Querol, Vicenç; Becerra Fontal, Yolanda; Badia Sala, Rosa Maria; Labarta Mancho, Jesús José (2010)
    Conference report
    Open Access
    This paper introduces the work being carried out at Barcelona Supercomputing Center in the area of Green Computing. We have been working in resource management for a long time and recently we included the energy parameter ...
  • CellMT: A cooperative multithreading library for the Cell/B.E. 

    Beltran Querol, Vicenç; Carrera Pérez, David; Torres Viñals, Jordi; Ayguadé Parra, Eduard (IEEE Computer Society Publications, 2009-12-16)
    Conference report
    Open Access
    The Cell BE processor has proved that heterogeneous multi-core systems can provide a huge computational power with high efficiency for a wide range of applications. The simple design of the computational units and the use ...
  • Improving web server performance through main memory compression 

    Beltran Querol, Vicenç; Torres Viñals, Jordi; Ayguadé Parra, Eduard (IEEE Computer Society, 2008)
    Conference lecture
    Open Access
    Current web servers are highly multithreaded applications whose scalability benefits from the current multicore/multiprocessor trend. However, some workloads can not capitalize on this because their performance is limited by ...
  • Optimizing resource utilization with software-based temporal multi-threading (sTMT) 

    Beltran Querol, Vicenç; Ayguadé Parra, Eduard (2013)
    Conference report
    Restricted access - publisher's policy
    Compute and memory access units are two of the most important resources to appropriately manage in current and future multi–/many–core architectures. Memory bandwidth and computational capacity need to be exploited in ...
  • Performance impact of the grid middleware 

    Carrera Pérez, David; Guitart Fernández, Jordi; Beltran Querol, Vicenç; Torres Viñals, Jordi; Ayguadé Parra, Eduard (American Scientific Publishers, 2006-01)
    Part of book or chapter of book
    Open Access
    The Open Grid Services Architecture (OGSA) defines a new vision of the Grid based on the use of Web Services (Grid Services). The standard interfaces, behaviors and schemes that are consistent with the OGSA specification ...
  • Simulating complex systems with a low-detail model 

    Nou Castell, Ramon; Guitart Fernández, Jordi; Beltran Querol, Vicenç; Carrera Pérez, David; Montero Mercadé, Lídia; Torres Viñals, Jordi; Ayguadé Parra, Eduard (2005-09)
    Conference report
    Open Access
    In this paper we show how modeling and simulating a complex system such as a web-server can help to evaluate di erent metrics and proposals to improve the performance without necessity of using a real system. Many times ...
  • Speeding up distributed MapReduce applications using hardware accelerators 

    Becerra Fontal, Yolanda; Beltran Querol, Vicenç; Carrera Pérez, David; González Tallada, Marc; Torres Viñals, Jordi; Ayguadé Parra, Eduard (2009-09)
    Conference report
    Open Access
    In an attempt to increase the performance/cost ratio, large compute clusters are becoming heterogeneous at multiple levels: from asymmetric processors, to different system architectures, operating systems and networks. ...