Now showing items 1-10 of 10

  • Captura de pantalla en modo kernel 

    Muniategui Climente, Javier de (Universitat Politècnica de Catalunya, 2019-06-24)
    Bachelor thesis
    Restricted access - confidentiality agreement
    Jugar a videojocs s'ha convertit en un hobby molt important per la societat actual. LudiumLab està innovant en aquest hobby amb una plataforma de \textit{cloud gaming} anomenada SoraStream, la qual permet als jugadors ...
  • Design and Development of a Linux-based Operating User System for CubeSat On-Board Computers 

    Montsech Bravo, Isaac (Universitat Politècnica de Catalunya, 2019-06)
    Bachelor thesis
    60 months embargo
    The purpose of this work is to develop and test a Linux-based embedded software system for a nanosatellite. The main objective will be the development of a set of configuration files to use within a build system, which ...
  • Dynamically controlled resource allocation in SMT processors 

    Cazorla Almeida, Francisco Javier; Ramírez Bellido, Alejandro; Valero Cortés, Mateo; Fernandez Prieto, Enrique (Institute of Electrical and Electronics Engineers (IEEE), 2004)
    Conference report
    Open Access
    SMT processors increase performance by executing instructions from several threads simultaneously. These threads use the resources of the processor better by sharing them but, at the same time, threads are competing for ...
  • FileSystems shared between systems in a USS environment 

    Peña Muñoz, Pau (Universitat Politècnica de Catalunya, 2019-01)
    Bachelor thesis
    Restricted access - confidentiality agreement
  • Measuring operating system overhead on Sun UltraSparc T1 processor 

    Radojkovic, Petar; Cakarevic, Vladimir; Verdú Mulà, Javier; Pajuelo González, Manuel Alejandro; Gioiosa, Roberto; Cazorla Almeida, Francisco Javier; Nemirovsky, Mario; Valero Cortés, Mateo (2009-06)
    Conference report
    Open Access
    Numerous studies have shown that Operating System (OS) noise is one of the reasons for significant performance degradation in clustered architectures. Although many studies examine the OS noise for High Performance Computing, ...
  • On the Applicability of PEBS based Online Memory Access Tracking for Heterogeneous Memory Management at Scale 

    Roca Nonell, Aleix; Gerofi, Balazs; Bautista-Gomez, Leonardo; Martinet, Dominique; Beltran Querol, Vicenç; Ishikawa, Yutaka (Association for Computing Machinery (ACM), 2018-11)
    Conference lecture
    Open Access
    Operating systems have historically had to manage only a single type of memory device. The imminent availability of heterogeneous memory devices based on emerging memory technologies confronts the classic single memory ...
  • Predictable performance in SMT processors: synergy between the OS and SMTs 

    Cazorla, Francisco; Knijnenburg, Peter M.W.; Sakellariou, Rizos; Fernandez Prieto, Enrique; Ramírez Bellido, Alejandro; Valero Cortés, Mateo (2006-07)
    Article
    Open Access
    Current operating systems (OS) perceive the different contexts of simultaneous multithreaded (SMT) processors as multiple independent processing units, although, in reality, threads executed in these units compete for the ...
  • Runtime vs. manual data distribution for architecture-agnostic shared-memory programming models 

    Nikolopoulos, Dimitrios; Ayguadé Parra, Eduard; Polychronopoulos, C D (2002-08)
    Article
    Restricted access - publisher's policy
    This paper compares data distribution methodologies for scaling the performance of OpenMP on NUMA architectures. We investigate the performance of automatic page placement algorithms implemented in the operating system, ...
  • Scalability evaluation of a polymorphic register file: a CG case study 

    Ciobanu, Catalin; Martorell Bofill, Xavier; Kuzmanov, Georgi; Ramírez Bellido, Alejandro; Gaydadjiev, Georgi (Springer, 2011)
    Conference report
    Restricted access - publisher's policy
    We evaluate the scalability of a Polymorphic Register File using the Conjugate Gradient method as a case study. We focus on a heterogeneous multi-processor architecture, taking into consideration critical parameters such ...
  • Scheduler-activated dynamic page migration for multiprogrammed DSM multiprocessors 

    Nikolopoulos, Dimitrios; Polychronopoulos, C D; Papatheodorou, Theodore; Labarta Mancho, Jesús José; Ayguadé Parra, Eduard (2002-06)
    Article
    Restricted access - publisher's policy
    The performance of multiprogrammed shared-memory multiprocessors suffers often from scheduler interventions that neglect data locality. On cache-coherent distributed shared-memory (DSM) multiprocessors, such scheduler ...