Recent Submissions

  • Random forest parameterization for earthquake catalog generation 

    Llácer Giner, David; Otero Calviño, Beatriz; Tous Liesa, Rubén; Monterrubio Velasco, Marisol; Carrasco Jiménez, José; Rojas Ulacio, Otilio (Springer, 2020)
    Conference report
    Open Access
    An earthquake is the vibration pattern of the Earth’s crust induced by the sliding of geological faults. They are usually recorded for later studies. However, strong earthquakes are rare, small-magnitude events may pass ...
  • BRASIL: A high-integrity GPGPU toolchain for automotive systems 

    Trompouki, Matina Maria; Kosmidis, Leonidas (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    Embedded General Purpose Graphics Processing Units (GPGPUs) are increasingly used in automotive to enable Advanced Driving Assistance (ADAS) and Autonomous driving. However, their functional safety certification has been ...
  • An on-board algorithm implementation on an embedded GPU: A space case study 

    Rodríguez Ferrandez, Iván; Kosmidis, Leonidas; Notebaert, Olivier; Cazorla Almeida, Francisco Javier; Steenari, David (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    On-board processing requirements of future space missions are constantly increasing, calling for new hardware than the traditional ones used in space. Embedded GPUs are an attractive candidate offering both high performance ...
  • An academic RISC-V silicon implementation based on open-source components 

    Abella Ferrer, Jaume; Bulla, Calvin; Cabo Pitarch, Guillem; Cazorla Almeida, Francisco Javier; Cristal Kestelman, Adrián; Doblas Font, Max; Figueras Bagué, Roger; González Trejo, Alberto; Hernández Luz, Carles; Hernández Calderón, César Alejandro; Jiménez Arador, Víctor; Kosmidis, Leonidas; Kostalabros, Ioannis-Vatistas; Langarita Benítez, Rubén; Leyva Santes, Neiel; López Paradís, Guillem; Marimon Illana, Joan; Martínez Martínez, Ricardo; Mendoza Escobar, Jonnatan; Moll Echeto, Francisco de Borja; Moreto Planas, Miquel; Pavón Rivera, Julián; Ramírez Lazo, Cristóbal; Ramírez Salinas, Marco Antonio; Rojas Morales, Carlos; Rubio Sola, Jose Antonio; Ruiz, Abraham Josafat; Sonmez, Nehir; Soria Pardos, Víctor; Teres Teres, Lluis; Unsal, Osman Sabri; Valero Cortés, Mateo; Vargas Valdivieso, Iván; Villa Vargas, Luis Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The design presented in this paper, called preDRAC, is a RISC-V general purpose processor capable of booting Linux jointly developed by BSC, CIC-IPN, IMB-CNM (CSIC), and UPC. The preDRAC processor is the first RISC-V ...
  • 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)
    Conference report
    Open Access
    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 ...
  • Align and distribute-based linear loop transformations 

    Torres Viñals, Jordi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (Springer, 1993)
    Conference report
    Open Access
    In this paper we generalize the framework of linear loop transformations in the sense that loop alignment is considered as a new component in the transformation process. The aim is to match the structure of loop nests with ...
  • Mainstream vs. emerging HPC: metrics, trade-offs and lessons learned 

    Radulović, Milan; Asifuzzaman, Kazi; Živanovič, Darko; Rajovic, Nikola; Colin de Verdiére, Guillaume; Pleiter, Dirk; Marazakis, Manolis; Kallimanis, Nikolaos; Carpenter, Paul Matthew; Radojkovic, Petar; Ayguadé Parra, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Various servers with different characteristics and architectures are hitting the market, and their evaluation and comparison in terms of HPC features is complex and multidimensional. In this paper, we share our experience ...
  • Evaluating worksharing tasks on distributed environments 

    Maroñas Bravo, Marcos; Teruel García, Xavier; Bull, J. Mark; Ayguadé Parra, Eduard; Beltran Querol, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    Hybrid programming is a promising approach to exploit clusters of multicore systems. Our focus is on the combination of MPI and tasking. This hybrid approach combines the low-latency and high throughput of MPI with the ...
  • Explore, discover and learn: unsupervised discovery of state-covering skills 

    Campos Camúñez, Víctor; Trott, Alex; Xiong, Caiming; Socher, Richard; Giró Nieto, Xavier; Torres Viñals, Jordi (2020)
    Conference lecture
    Open Access
    Acquiring abilities in the absence of a task-oriented reward function is at the frontier of reinforcement learning research. This problem has been studied through the lens of empowerment, which draws a connection between ...
  • Automatic structure extraction from MPI applications tracefiles 

    Casas Guix, Marc; Badia Sala, Rosa Maria; Labarta Mancho, Jesús José (Springer, 2007)
    Conference report
    Open Access
    The process of obtaining useful message passing applications tracefiles for performance analysis in supercomputers is a large and tedious task. When using hundreds or thousands of processors, the tracefile size can grow ...
  • GOPHER, an HPC framework for large scale graph exploration and inference 

    Josep Fabregó, Marc; Teruel García, Xavier; Giménez Ábalos, Víctor; Cirilo, Davide; Garcia Gasulla, Dario; Álvarez Napagao, Sergio; Garcia Gasulla, Marta; Ayguadé Parra, Eduard; Valencia, Alfonso (Springer, 2020)
    Conference report
    Open Access
    Biological ontologies, such as the Human Phenotype Ontology (HPO) and the Gene Ontology (GO), are extensively used in biomedical research to investigate the complex relationship that exists between the phenome and the ...
  • Generation of simple analytical models for message passing applications 

    Rodríguez Herrera, Germán; Badia Sala, Rosa Maria; Labarta Mancho, Jesús José (Springer, 2004)
    Conference report
    Open Access
    We present a methodology which allows to derive accurate and simple models which are able to describe the performance of parallel applications without looking at the source code. A trace is obtained and linear models are ...

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