Now showing items 1-20 of 35

  • Accelerating K-mer Frequency Counting with GPU and Non-Volatile Memory 

    Cadenelli, Nicola; Polo Cantero, José; Carrera Pérez, David (2018)
    Conference report
    Open Access
    The emergence of Next Generation Sequencing (NGS) platforms has increased the throughput of genomic sequencing and in turn the amount of data that needs to be processed, requiring highly efficient computation for its ...
  • Adaptive execution environments for application servers 

    Carrera Pérez, David (Universitat Politècnica de Catalunya, 2008-07-08)
    Doctoral thesis
    Open Access
    El creixement experimentat tant per la web com per Internet en els últims anys ha potenciat l'introducció de servidors d'aplicacions dins de la majoria d'entorns d'execució distribuits. El servidors d'aplicacions web porten ...
  • Adaptive MapReduce scheduling in shared environments 

    Polo, Jordà; Becerra Fontal, Yolanda; Carrera Pérez, David; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Steinder, Malgorzata (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Open Access
    In this paper we present a MapReduce task scheduler for shared environments in which MapReduce is executed along with other resource-consuming workloads, such as transactional applications. All workloads may potentially ...
  • 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 ...
  • ALOJA: A benchmarking and predictive platform for big data performance analysis 

    Poggi, Nicolas; Berral García, Josep Lluís; Carrera Pérez, David (Springer, 2016)
    Conference report
    Open Access
    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 ...
  • ALOJA: A framework for benchmarking and predictive analytics in Hadoop deployments 

    Berral García, Josep Lluís; Poggi Mastrokalo, Nicolas; Carrera Pérez, David; Call, Aaron; Reinauer, Rob; Green, Daron (Institute of Electrical and Electronics Engineers (IEEE), 2015-10)
    Article
    Open Access
    This article presents the ALOJA project and its analytics tools, which leverages machine learning to interpret Big Data benchmark performance data and tuning. ALOJA is part of a long-term collaboration between BSC and ...
  • ALOJA: a systematic study of Hadoop deployment variables to enable automated characterization of cost-effectiveness 

    Poggi Mastrokalo, Nicolas; Carrera Pérez, David; Call, Aaron; Mendoza, Sergio; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Gagliardi, Fabrizio; Labarta Mancho, Jesús José; Reinauer, Rob; Vujic, Nikola; Green, Daron; Blakeley, Jose (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Open Access
    This article presents the ALOJA project, an initiative to produce mechanisms for an automated characterization of cost-effectiveness of Hadoop deployments and reports its initial results. ALOJA is the latest phase of a ...
  • ALOJA-ML: a framework for automating characterization and knowledge discovery in Hadoop deployments 

    Berral García, Josep Lluís; Poggi, Nicolas; Carrera Pérez, David; Call, Aaron; Reinauer, Rob; Green, Daron (Association for Computing Machinery (ACM), 2015)
    Conference report
    Open Access
    This article presents ALOJA-Machine Learning (ALOJA-ML) an extension to the ALOJA project that uses machine learning techniques to interpret Hadoop benchmark performance data and performance tuning; here we detail the ...
  • A resilient and distributed near real-time traffic forecasting application for Fog computing environments 

    Pérez, Juan Luis; Gutiérrez Torre, Alberto; Berral García, Josep Lluís; Carrera Pérez, David (Elsevier, 2018-10-01)
    Article
    Open Access
    In this paper we propose an architecture for a city-wide traffic modeling and prediction service based on the Fog Computing paradigm. The work assumes an scenario in which a number of distributed antennas receive data ...
  • Automatic generation of workload profiles using unsupervised learning pipelines 

    Buchaca Prats, David; Bernal García, Josep Lluis; Carrera Pérez, David (2017-12-27)
    Article
    Open Access
    The complexity of resource usage and power consumption on cloud-based applications makes the understanding of application behavior through expert examination difficult. The difficulty increases when applications are seen ...
  • Batch job profiling and adaptive profile enforcement for virtualized environments 

    Becerra Fontal, Yolanda; Carrera Pérez, David; Ayguadé Parra, Eduard (IEEE Computer Society, 2009)
    Conference lecture
    Open Access
    Data center management is driven by high-level performance goals, and it is the responsibility of a management middleware to ensure that those goals are met using dynamic resource allocation. The performance delivered by ...
  • 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 ...
  • Business process mining from e-commerce web logs 

    Poggi Mastrokalo, Nicolas; Muthusamy, Vinod; Carrera Pérez, David; Khalaf, Rania (Springer, 2013)
    Conference report
    Restricted access - publisher's policy
    The dynamic nature of the Web and its increasing importance as an economic platform create the need of new methods and tools for business efficiency. Current Web analytic tools do not provide the necessary abstracted view ...
  • 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 ...
  • Considerations in using OpenCL on GPUs and FPGAs for throughput-oriented genomics workloads 

    Cadenelli, Nicola; Jaksic, Zoran; Polo Bardés, Jorda; Carrera Pérez, David (Elsevier, 2019-05)
    Article
    Open Access
    The recent upsurge in the available amount of health data and the advances in next-generation sequencing are setting the ground for the long-awaited precision medicine. To process this deluge of data, bioinformatics workloads ...
  • Constant-time sliding window framework with reduced memory footprint and efficient bulk evictions 

    Villalba Navarro, Álvaro; Berral García, Josep Lluís; Carrera Pérez, David (2019-03)
    Article
    Open Access
    The fast evolution of data analytics platforms has resulted in an increasing demand for real-time data stream processing. From Internet of Things applications to the monitoring of telemetry generated in large data centers, ...
  • Cross-stratum orchestration and flexgrid optical networks for datacenter federations 

    Velasco Esteban, Luis Domingo; Asensio Garcia, Adrian; Castro Casales, Alberto; Berral García, Josep Lluís; Carrera Pérez, David; López, Víctor; Fernández Palacios, Juan Pedro (2013-11)
    Article
    Restricted access - publisher's policy
    Current inter-data-center connections are configured as static big fat pipes, which entails large bit rate over-provisioning and thus high operational costs for DC operators. On the other hand, network operators cannot ...
  • Enabling distributed key-value stores with low latency-impact snapshot support 

    Polo, Jordà; Becerra Fontal, Yolanda; Carrera Pérez, David; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Spreitzer, Mike; Steinder, Malgorzata (2013)
    Conference report
    Open Access
    Current distributed key-value stores generally provide greater scalability at the expense of weaker consistency and isolation. However, additional isolation support is becoming increasingly important in the environments ...
  • Enabling resource sharing between transactional and batch workloads using dynamic application placement 

    Carrera Pérez, David; Steinder, Malgorzata; Whalley, Ian; Torres Viñals, Jordi; Ayguadé Parra, Eduard (2008-12)
    Article
    Restricted access - publisher's policy
    We present a technique that enables existing middleware to fairly manage mixed workloads: batch jobs and transactional applications. The technique leverages a generic application placement controller, which dynamically ...
  • Enabling resource sharing between transactional and batch workloads using dynamic application placement 

    Carrera Pérez, David; Steinder, Malgorzata; Whalley, Ian; Torres Viñals, Jordi; Ayguadé Parra, Eduard (Springer, 2008)
    Conference lecture
    Open Access
    We present a technique that enables existing middleware to fairly manage mixed workloads: batch jobs and transactional applications. The technique leverages a generic application placement controller, which dynamically ...