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Ara es mostren els items 14-32 de 32

    • Enabling distributed key-value stores with low latency-impact snapshot support 

      Polo Bardés, Jordà; Becerra Fontal, Yolanda; Carrera Pérez, David; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Spreitzer, Mike; Steinder, Malgorzata (2013)
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      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 dynamic and intelligent workflows for HPC, data analytics, and AI convergence 

      Ejarque Artigas, Jorge; Badia Sala, Rosa Maria; Becerra Fontal, Yolanda; Rodrigo Berlín, Julián; Folch Duran, Arnau; Lordan Gomis, Francesc; Monterrubio Velasco, Marisol; de la Puente, Josep; Queralt Calafat, Anna; Rodríguez Rodríguez, Juan E.; Rossi, Riccardo (Elsevier, 2022-09)
      Article
      Accés restringit per política de l'editorial
      The evolution of High-Performance Computing (HPC) platforms enables the design and execution of progressively larger and more complex workflow applications in these systems. The complexity comes not only from the number ...

    • Evaluating the benefits of key-value databases for scientific applications 

      Santamaria Mateu, Pol; Oden, Lena; Gil, Eloy; Becerra Fontal, Yolanda; Sirvent, Raül; Glock, Philipp; Torres Viñals, Jordi (Springer, 2019)
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      The convergence of Big Data applications with High-Performance Computing requires new methodologies to store, manage and process large amounts of information. Traditional storage solutions are unable to scale and that ...

    • Exploiting key-value data stores scalability for HPC 

      Cugnasco, Cesare; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Ayguadé Parra, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      BigData revolutionised the IT industry. It first interested the OLTP systems. Distributed Hash Tables replaced Traditional SQL databases as they guaranteed low response time on simple read/write requests. The second wave ...

    • Hecuba: NoSql made easy 

      Alomar, Guillem; Becerra Fontal, Yolanda; Torres Viñals, Jordi (Barcelona Supercomputing Center, 2015-05-05)
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      Non-relational databases are nowadays a common solution when dealing with huge data set and massive query work load. These systems have been redesigned from scratch in order to achieve scalability and availability at ...

    • INTRODUCCIO ALS SISTEMES OPERATIUS (Examen 1r quadrimestre) 

      Becerra Fontal, Yolanda (Universitat Politècnica de Catalunya, 2004-01-26)
      Examen
      Accés restringit a la comunitat UPC

    • INTRODUCCIO ALS SISTEMES OPERATIUS (Examen 1r quadrimestre) 

      Becerra Fontal, Yolanda (Universitat Politècnica de Catalunya, 2003-11-20)
      Examen
      Accés restringit a la comunitat UPC

    • Introducing polyglot-based data-flow awareness to time-series data stores 

      García Calatrava, Carlos; Becerra Fontal, Yolanda; Cucchietti, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2022-06-30)
      Article
      Accés obert
      The rising interest in extracting value from data has led to a broad proliferation of monitoring infrastructures, most notably composed by sensors, intended to collect this new oil. Thus, gathering data has become fundamental ...

    • Mejora del rendimiento de las aplicaciones Java usando cooperación entre el sistema operativo y la máquina virtual de Java 

      Becerra Fontal, Yolanda (Universitat Politècnica de Catalunya, 2006-09-15)
      Tesi
      Accés obert
      El uso de los entornos virtualizados de ejecución se ha extendido a todos los ámbitos y, en particular, se está utilizando para el desarrollo y la ejecución de aplicaciones con un alto consumo de recursos. Por lo tanto, ...

    • NagareDB: A resource-efficient document-oriented time-series database 

      García Calatrava, Carlos; Becerra Fontal, Yolanda; Cucchietti, Fernando; Diví Cuesta, Carla (2021-08-13)
      Article
      Accés obert
      The recent great technological advance has led to a broad proliferation of Monitoring Infrastructures, which typically keep track of specific assets along time, ranging from factory machinery, device location, or even ...

    • ParaView + Alya + D8tree: Integrating high performance computing and high performance data analytics 

      Artigues, Antoni; Cugnasco, Cesare; Becerra Fontal, Yolanda; Cucchietti, Fernando; Houzeaux, Guillaume; Vázquez, Mariano; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Elsevier, 2017)
      Article
      Accés obert
      Large scale time-dependent particle simulations can generate massive amounts of data, making it so that storing the results is often the slowest phase and the primary time bottleneck of the simulation. Furthermore, analysing ...

    • PyCOMPSs: Parallel computational workflows in Python 

      Tejedor, Enric; Becerra Fontal, Yolanda; Alomar, Guillem; Queralt Calafat, Anna; Badia Sala, Rosa Maria; Torres Viñals, Jordi; Cortés, Toni; Labarta Mancho, Jesús José (2017-01-01)
      Article
      Accés obert
      The use of the Python programming language for scientific computing has been gaining momentum in the last years. The fact that it is compact and readable and its complete set of scientific libraries are two important ...

    • SISTEMES OPERATIUS (Examen 1r quadrimestre) 

      Becerra Fontal, Yolanda (Universitat Politècnica de Catalunya, 2004-01-26)
      Examen
      Accés restringit a la comunitat UPC

    • SISTEMES OPERATIUS (Examen 1r quadrimestre) 

      Becerra Fontal, Yolanda (Universitat Politècnica de Catalunya, 2003-11-20)
      Examen
      Accés restringit a la comunitat UPC

    • Spark deployment and performance evaluation on the MareNostrum supercomputer 

      Tous Liesa, Rubén; Gounaris, Anastasios; Tripiana, Carlos; Torres Viñals, Jordi; Girona Turell, Sergi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Becerra Fontal, Yolanda; Carrera Pérez, David; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      In this paper we present a framework to enable data-intensive Spark workloads on MareNostrum, a petascale supercomputer designed mainly for compute-intensive applications. As far as we know, this is the first attempt to ...

    • 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)
      Text en actes de congrés
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      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. ...

    • The OTree: multidimensional indexing with efficient data sampling for HPC 

      Cugnasco, Cesare; Calmet, Hadrien; Santamaria Mateu, Pol; Sirvent Pardell, Raül; Eguzkitza, Ane Beatriz; Houzeaux, Guillaume; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      Spatial big data is considered an essential trend in future scientific and business applications. Indeed, research instruments, medical devices, and social networks generate hundreds of petabytes of spatial data per year. ...

    • Towards specification of a software architecture for cross-sectoral big data applications 

      Arapakis, Ioannis; Becerra Fontal, Yolanda; Boehm, Omer; Bravos, Geroge; Chatzigiannakis, Vassilis; Cugnasco, Cesare; Demetriou, Giorgos; Eleftheriou, Iliada; Mascolo, Julien Etienne; Fodor, Lidija; Ioannidis, Sotiris; Jakovetic, Dusan; Kallipolitis, Leonidas; Kavakli, Evangelia; Kopanaki, Despina; Kourtellis, Nicolas; Marcos, Mario Maawad; Martin de Pozuelo, Ramon; Milosevic, Nemanja; Morandi, Giuditta; Pages Montanera, Enric; Ristow, Gerald; Sakellariou, Rizos; Sirvent, Raül; Skrbic, Srdjan; Spais, Ilias; Vasiliadis, Giorgos; Vinov, Michael (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Comunicació de congrés
      Accés obert
      The proliferation of Big Data applications puts pressure on improving and optimizing the handling of diverse datasets across different domains. Among several challenges, major difficulties arise in data-sensitive domains ...

    • Workflow environments for advanced cyberinfrastructure platforms 

      Badia Sala, Rosa Maria; Ejarque Artigas, Jorge; Lordan Gomis, Francesc; Lezzi, Daniele; Conejero Bañón, Javier; Álvarez Cid-Fuentes, Javier; Becerra Fontal, Yolanda; Queralt Calafat, Anna (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
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      Progress in science is deeply bound to the effective use of high-performance computing infrastructures and to the efficient extraction of knowledge from vast amounts of data. Such data comes from different sources that ...