Ara es mostren els items 69-88 de 135

    • Handling task dependencies under strided and aliased references 

      Pérez Cáncer, Josep Maria; Badia Sala, Rosa Maria; Labarta Mancho, Jesús José (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The emergence of multicore processors has increased the need for simple parallel programming models usable by nonexperts. The ability to specify subparts of a bigger data structure is an important trait of High Productivity ...
    • Heterogeneous hierarchical workflow composition 

      Yildiz, Orcun; Ejarque Artigas, Jorge; Chan, Henry; Sankaranarayanan, Subramanian; Badia Sala, Rosa Maria; Peterka, Tom (2019-07)
      Article
      Accés obert
      Workflow systems promise scientists an automated end-to-end path from hypothesis to discovery. However, expecting any single workflow system to deliver such a wide range of capabilities is impractical. A more practical ...
    • Hierarchical management of extreme-scale task-based applications 

      Lordan Gomis, Francesc; Puigdemunt Schmolling, Gabriel; Vergés Boncompte, Pere; Conejero Bañón, Francisco Javier; Ejarque Artigas, Jorge; Badia Sala, Rosa Maria (Springer Cham, 2023)
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      The scale and heterogeneity of exascale systems increment the complexity of programming applications exploiting them. Task-based approaches with support for nested tasks are a good-fitting model for them because of the ...
    • Hierarchical task-based programming with StarSs 

      Planas Carbonell, Judit; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2009-08)
      Article
      Accés restringit per política de l'editorial
      Programming models for multicore and many-core systems are listed as one of the main challenges in the near future for computing research. These programming models should be able to exploit the underlying platform, but ...
    • High-level synthesis of asynchronous systems: Scheduling and process synchronization 

      Badia Sala, Rosa Maria; Cortadella, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 1993)
      Text en actes de congrés
      Accés obert
      Basic concepts for scheduling algorithms and control synthesis in high-level synthesis of asynchronous circuits are defined. Two scheduling strategies are presented and evaluated. Experiments on different benchmarks show ...
    • Hunting for open clusters in Gaia DR2: 582 new open clusters in the galactic disc 

      Castro Ginard, Alfred; Jordi Nebot, Carme; Luri Carrasco, Xavier; Álvarez Cid-Fuentes, Javier; Casamiquela, Laia; Anders, Friedrich; Cantat Gaudin, Tristan; Monguió Montells, Maria; Balaguer Núñez, Lola; Solà Martinell, Salvi; Badia Sala, Rosa Maria (EDP Sciences, 2020-03-04)
      Article
      Accés obert
      Context. Open clusters are key targets for studies of Galaxy structure and evolution, and stellar physics. Since the Gaia data release 2 (DR2), the discovery of undetected clusters has shown that previous surveys were ...
    • Hunting for open clusters in Gaia EDR3: 628 new open clusters found with OCfinder 

      Castro Ginard, Alfred; Jordi Nebot, Carme; Luri Carrascoso, Xavier; Cantat Gaudin, Tristan; Carrasco Martínez, Josep Manel; Casamiquela Floriach, Laia; Anders, Friedrich; Balaguer Núñez, Lola; Badia Sala, Rosa Maria (EDP Sciences, 2022-05)
      Article
      Accés obert
      Context. The improvements in the precision of the published data in Gaia EDR3 with respect to Gaia DR2, particularly for parallaxes and proper motions, offer the opportunity to increase the number of known open clusters ...
    • Impact of the memory hierarchy on shared memory architectures in multicore programming models 

      Badia Sala, Rosa Maria; Pérez Cáncer, Josep Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (IEEE Computer Society Publications, 2009)
      Comunicació de congrés
      Accés obert
      Many and multicore architectures put a big pressure in parallel programming but gives a unique opportunity to propose new programming models that automatically exploit the parallelism of these architectures. OpenMP is a ...
    • Implementing OmpSs support for regions of data in architectures with multiple address spaces 

      Bueno Hedo, Javier; Martorell Bofill, Xavier; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (ACM, 2013)
      Text en actes de congrés
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      The need for features for managing complex data accesses in modern programming models has increased due to the emerging hardware architectures. HPC hardware has moved towards clusters of accelerators and/or multicores, ...
    • Introducing Virtual Execution Environment for Application Lifecycle Management and SLA-Driven Resource Distribution within Service Providers 

      Goiri Presa, Íñigo; Julià, Ferran; Ejarque, Jorge; Palol, Marc de; Badia Sala, Rosa Maria; Guitart Fernández, Jordi; Torres Viñals, Jordi (IEEE Computer Society Publications, 2009-07)
      Text en actes de congrés
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      Resource management is a key challenge that service providers must adequately face in order to ensure their profitability. This paper describes a proof-of-concept framework for facilitating resource management in service ...
    • Just-in-time renaming and lazy write-back on the Cell/B.E. 

      Bellens, Pieter; Pérez Cáncer, Josep Maria; Badia Sala, Rosa Maria; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Text en actes de congrés
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      Cell Superscalar (CellSs) provides a simple, flexible and easy programming approach for the Cell Broadband Engine (Cell/B.E.) that automatically exploits the inherent concurrency of applications at a function or task level. ...
    • Leveraging task-parallelism in message-passing dense matrix factorizations using SMPSs 

      Martín Huertas, Alberto Francisco; Reyes, Ruyman; Badia Sala, Rosa Maria; Quintana Ortí, Enrique Salvador (2014-05)
      Article
      Accés obert
      In this paper, we investigate how to exploit task-parallelism during the execution of the Cholesky factorization on clusters of multicore processors with the SMPSs programming model. Our analysis reveals that the major ...
    • Loop level speculation in a task based programming model 

      Gayatri, Rahulkumar; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard (2013)
      Text en actes de congrés
      Accés obert
      Uncountable loops (such as while loops in C) and if-conditions are some of the most common constructs in programming. While-loops are widely used to determine the convergence in linear algebra algorithms or goal finding ...
    • Machine learning-based recovery of thermophysical information from velocity data in supercritical fluids turbulence 

      Masclans Serrat, Núria; Vázquez-Novoa, Fernando; Bernades, Marc; Badia Sala, Rosa Maria; Jofre Cruanyes, Lluís (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
      Text en actes de congrés
      Accés obert
      Recent research has shown the possibility to achieve microconfined turbulence utilizing supercritical fluids under high-pressure transcritical conditions. This has generated increasing interest in the hybrid nature of the ...
    • Managing failures in task-based parallel workflows in distributed computing environments 

      Ejarque, Jorge; Bertran, Marta; Álvarez Cid-Fuentes, Javier; Conejero, Javier; Badia Sala, Rosa Maria (Springer, Cham, 2020)
      Capítol de llibre
      Accés obert
      Current scientific workflows are large and complex. They normally perform thousands of simulations whose results combined with searching and data analytics algorithms, in order to infer new knowledge, generate a very large ...
    • mF2C Project : Research challenges 

      Badia Sala, Rosa Maria; Jukan, Admela; Jensen, Jens; Masip Bruin, Xavier (2017-11-02)
      Audiovisual
      Accés obert
      Els participants del projecte mF2C, plantegen els reptes i interessos que se'ls presenten arran de la participació en el mateix.
    • OmpSs-OpenCL programming model for heterogeneous systems 

      Elangovan, Vinoth Krishnan; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard (Springer, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The advent of heterogeneous computing has forced programmers to use platform specific programming paradigms in order to achieve maximum performance. This approach has a steep learning curve for programmers and also has ...
    • On the maturity of parallel applications for asymmetric multi-core processors 

      Chronaki, Kallia; Moretó Planas, Miquel; Casas, Marc; Rico, Alejandro; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Valero Cortés, Mateo (Elsevier, 2019-05-01)
      Article
      Accés obert
      Asymmetric multi-cores (AMCs) are a successful architectural solution for both mobile devices and supercomputers. By maintaining two types of cores (fast and slow) AMCs are able to provide high performance under the facility ...
    • OPTIMIS: A holistic approach to cloud service provisioning 

      Badia Sala, Rosa Maria; Juan, Ana; Hernández, Francisco; Tordsson, Johan; Elmroth, Erik; Ali-Eldin, Ahmed; Zsigri, Csilla; Sirvent Pardell, Raül; Guitart Fernández, Jordi; Wesner, Stefan; Kipp, Alexander; Hudzia, Benoit; Varvarigou, Theodora; Konstanteli, Kleopatra; Kousiouris, George; Nair, Srijith K.; Dimitrakos, Theo; Ziegler, Wolfgang; Djemame, Karim; Corrales, Marcelo; Sheridan, Craig; Forgó, Nikolaus; Sharif, Tabassum (Elsevier Science Direct, 2012-01)
      Article
      Accés restringit per política de l'editorial
      We present fundamental challenges for scalable and dependable service platforms and architectures that enable flexible and dynamic provisioning of cloud services. Our findings are incorporated in a toolkit targeting the ...
    • Optimizing execution on large-scale infrastructures by integrating task-based workflows and MPI 

      Elshazly, Hatem Mohamed Abdelfattah Eid; Lordan, Francesc; Ejarque, Jorge; Badia Sala, Rosa Maria (Barcelona Supercomputing Center, 2021-05)
      Text en actes de congrés
      Accés obert
      While MPI [1] + X (where X is another parallel programming model) has been proposed and used by the community, we propose a hybrid programming model that combines taskbased model + MPI. Task-based workflows offer the ...