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Ara es mostren els items 79-98 de 135

    • 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
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      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)
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      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
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      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)
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      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
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      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 ...

    • Optimizing the exploitation of multicore processors and GPUs with OpenMP and OpenCL 

      Ferrer, Roger; Planas Carbonell, Judit; Bellens, Pieter; Duran González, Alejandro; González Tallada, Marc; Martorell Bofill, Xavier; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2011)
      Article
      Accés restringit per política de l'editorial
      In this paper, we present OMPSs, a programming model based on OpenMP and StarSs, that can also incorporate the use of OpenCL or CUDA kernels. We evaluate the proposal on three different architectures, SMP, Cell/B.E. and ...

    • Optimizing the exploitation of multicore processors and GPUs with OpenMP and OpenCL 

      Ferrer, Roger; Planas Carbonell, Judit; Bellens, Pieter; Duran Gonzalez, Alejandro; González Tallada, Marc; Martorell Bofill, Xavier; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Springer, 2010)
      Text en actes de congrés
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      In this paper, we present OMPSs, a programming model based on OpenMP and StarSs, that can also incorporate the use of OpenCL or CUDA kernels. We evaluate the proposal on three different architectures, SMP, Cell/B.E. and ...

    • Orchestration of software packages in data science workflows 

      Ramon-Cortes, Cristian; Ejarque, Jorge; Badia Sala, Rosa Maria (Barcelona Supercomputing Center, 2019-05-07)
      Text en actes de congrés
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    • P-Means, a parallel clustering algorithm for a heterogeneous multi-processor environment 

      Foina, Aislan G.; Planas Carbonell, Judit; Badia Sala, Rosa Maria; Ramirez-Fernandez, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2011)
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      G-means is a data mining clustering algorithm based on k-means, used to find the number of Gaussian distributions and their centers inside a multi-dimensional dataset. This paper presents the performance gain obtained from ...

    • Parallelizing dense and banded linear algebra libraries using SMPSs 

      Badia Sala, Rosa Maria; Herrero Zaragoza, José Ramón; Labarta Mancho, Jesús José; Pérez Cáncer, Josep Maria; Quintana Ortí, Enrique Salvador; Quintana Ortí, Gregorio (2009-12-25)
      Article
      Accés restringit per política de l'editorial
      The promise of future many-core processors, with hundreds of threads running concurrently, has led the developers of linear algebra libraries to rethink their design in order to extract more parallelism, further exploit ...

    • Performance meets programmabilty: Enabling native Python MPI tasks in PyCOMPSs 

      Elshazly, Hatem Mohamed Abdelfattah Eid; Lordan Gomis, Francesc; Ejarque Artigas, Jorge; Badia Sala, Rosa Maria (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
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      The increasing complexity of modern and future computing systems makes it challenging to develop applications that aim for maximum performance. Hybrid parallel programming models offer new ways to exploit the capabilities ...

    • Petri net analysis using boolean manipulation 

      Pastor Llorens, Enric; Roig Mansilla, Oriol; Cortadella, Jordi; Badia Sala, Rosa Maria (Springer, 1994)
      Capítol de llibre
      Accés obert
      This paper presents a novel analysis approach for bounded Petri nets. The net behavior is modeled by boolean functions, thus reducing reasoning about Petri nets to boolean calculation. The state explosion problem is managed ...

    • Picos: A hardware runtime architecture support for OmpSs 

      Yazdanpanah Ahmadabadi, Fahimeh; Álvarez Martínez, Carlos; Jiménez González, Daniel; Badia Sala, Rosa Maria; Valero Cortés, Mateo (Elsevier, 2015-12)
      Article
      Accés obert
      OmpSs is a programming model that provides a simple and powerful way of annotating sequential programs to exploit heterogeneity and task parallelism based on runtime data dependency analysis, dataflow scheduling and ...

    • POSTER: Exploiting asymmetric multi-core processors with flexible system sofware 

      Chronaki, Kallia; Moretó Planas, Miquel; Casas, Marc; Rico, Alejandro; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (Association for Computing Machinery (ACM), 2016)
      Comunicació de congrés
      Accés obert
      Energy efficiency has become the main challenge for high performance computing (HPC). The use of mobile asymmetric multi-core architectures to build future multi-core systems is an approach towards energy savings while ...

    • Pre-exascale HPC approaches for molecular dynamics simulations. Covid-19 research: a use case 

      Wieczór, Milosz; Genna, Vito; Aranda Moratalla, Juan; Badia Sala, Rosa Maria; Gelpi Buchaca, Josep Lluís; Gapsys, Vytautas; de Groot, Bert L.; Lindahl, Erik; Municoy Terol, Martí; Hospital, Adam; Orozco López, Modesto (John Wiley & sons, 2023-01)
      Article
      Accés obert
      Exascale computing has been a dream for ages and is close to becoming a reality that will impact how molecular simulations are being performed, as well as the quantity and quality of the information derived for them. We ...