Enviaments recents

  • TaskInsight: Understanding Task Schedules Effects on Memory and Performance 

    Ceballos, Germán; Grass, Thomas; Hugo, Andra; Black-Schaffer, David (Association for Computing Machinery, 2017-02)
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    Accés obert
    Recent scheduling heuristics for task-based applications have managed to improve their by taking into account memory-related properties such as data locality and cache sharing. However, there is still a general lack of ...
  • A confidence assessment of WCET estimates for software time randomized caches 

    Benedicte Illescas, Pedro; Kosmidis, Leonidas; Quiñones Moreno, Eduardo; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    Accés obert
    Obtaining Worst-Case Execution Time (WCET) estimates is a required step in real-time embedded systems during software verification. Measurement-Based Probabilistic Timing Analysis (MBPTA) aims at obtaining WCET estimates ...
  • Rebalancing the core front-end through HPC code analysis 

    Milic, Ugljesa; Carpenter, Paul; Rico, Alejandro; Ramirez, Alex (IEEE, 2016-10-10)
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    There is a need to increase performance under the same power and area envelope to achieve Exascale technology in high performance computing (HPC). The today's chip multiprocessor (CMP) design is tailored by traditional ...
  • A Review of Lightweight Thread Approaches for High Performance Computing 

    Castelló, Adrián; Peña, Antonio J.; Seo, Sangmin; Mayo, Rafael; Balaji, Pavan; Quintana-Ortí, Enrique S. (IEEE, 2016-12-08)
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    High-level, directive-based solutions are becoming the programming models (PMs) of the multi/many-core architectures. Several solutions relying on operating system (OS) threads perfectly work with a moderate number of ...
  • Implications of non-volatile memory as primary storage for database management systems 

    Mustafa, Naveed U.; Armejach, Adrià; Ozturk, Ozcan; Cristal, Adrián; Unsal, Osman S. (IEEE, 2017-01-19)
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    Traditional Database Management System (DBMS) software relies on hard disks for storing relational data. Hard disks are cheap, persistent, and offer huge storage capacities. However, data retrieval latency for hard disks ...
  • Controlling Network Latency in Mixed Hadoop Clusters: Do We Need Active Queue Management? 

    Fischer e Silva, Renan; Carpenter, Paul M. (IEEE, 2016-12-26)
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    With the advent of big data, data center applications are processing vast amounts of unstructured and semi-structured data, in parallel on large clusters, across hundreds to thousands of nodes. The highest performance for ...
  • A methodology for full-system power modeling in heterogeneous data centers 

    Canuto, Mauro; Bosch, Raimon; Macías Lloret, Mario; Guitart Fernández, Jordi (Association for Computing Machinery (ACM), 2016)
    Comunicació de congrés
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    The need for energy-awareness in current data centers has encouraged the use of power modeling to estimate their power consumption. However, existing models present noticeable limitations, which make them application-dependent, ...
  • ALOJA: A benchmarking and predictive platform for big data performance analysis 

    Poggi, Nicolas; Berral García, Josep Lluís; Carrera Pérez, David (Springer, 2016)
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    Accés restringit per política de l'editorial
    The main goals of the ALOJA research project from BSC-MSR, are to explore and automate the characterization of cost-effectivenessof Big Data deployments. The development of the project over its first year, has resulted in ...
  • Bio-inspired call-stack reconstruction for performance analysis 

    Servat, Harald; Llort, German; González, Juan; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    The correlation of performance bottlenecks and their associated source code has become a cornerstone of performance analysis. It allows understanding why the efficiency of an application falls behind the computer's peak ...
  • Seeking time-composable partitions of tasks for COTS multicore processors 

    Fernández, Gabriel; Abella Ferrer, Jaume; Quiñones Moreno, Eduardo; Fossati, Luca; Zulianello, Marco; Vardanega, Tullio; Cazorla Almeida, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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    The timing verification of real-time single core systems involves a timing analysis step that yields an Execution Time Bound (ETB) for each task, followed by a schedulability analysis step, where the scheduling attributes ...

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