Enviaments recents

  • RPR: a random replacement policy with limited pathological replacements 

    Benedicte Illescas, Pedro; Hernández Luz, Carles; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Association for Computing Machinery (ACM), 2018)
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    Measurement-Based Probabilistic Timing Analysis (MBPTA) has consolidated as a technique to estimate probabilistic Worst-Case Execution Times (WCET) for critical software running on processors with high-performance hardware ...
  • HPC benchmarking: scaling right and looking beyond the average 

    Radulovic, Milan; Asifuzzaman, Kazi; Carpenter, Paul Matthew; Radojkovic, Petar; Ayguadé Parra, Eduard (Springer, 2018)
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    Designing a balanced HPC system requires an understanding of the dominant performance bottlenecks. There is as yet no well established methodology for a unified evaluation of HPC systems and workloads that quantifies the ...
  • Detection-aided liver lesion segmentation using deep learning 

    Bellver, Míriam; Maninis, Kevis-Kokitsi; Pont Tuset, Jordi; Giró Nieto, Xavier; Torres Viñals, Jordi; Van Gool, Luc (2017)
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    A fully automatic technique for segmenting the liver and localizing its unhealthy tissues is a convenient tool in order to diagnose hepatic diseases and assess the response to the according treatments. In this work we ...
  • Low-latency multi-threaded ensemble learning for dynamic big data streams 

    Marron, Diego; Ayguadé Parra, Eduard; Herrero Zaragoza, José Ramón; Read, Jesse; Bifet, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Real–time mining of evolving data streams involves new challenges when targeting today’s application domains such as the Internet of the Things: increasing volume, velocity and volatility requires data to be processed ...
  • Approaching simulation to modelers: a user interface for large-scale demographic simulation 

    Montañola Sales, Cristina; Casanovas Garcia, Josep; Onggo, Bhakti S. S.; Cela Espín, José M.; Kaplan Marcusan, Adriana (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Comunicació de congrés
    Accés obert
    Agent-based modeling is one of the promising modeling tools that can be used in the study of population dynamics. Two of the main obstacles hindering the use of agent-based simulation in practice are its scalability when ...
  • Demographic agent-based simulation of Gambians immigrants in Spain 

    Montañola Sales, Cristina; Casanovas Garcia, Josep; Kaplan Marcusan, Adriana; Cela Espín, José M. (2014)
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    Changes in our society have created a challenge for policymakers, who confront a need of tools to evaluate the possible effects of their policies. Agent-based modelling and simulation is a promising methodology which can ...
  • Evaluating A+B=K conditions in constant time 

    Cortadella, Jordi; Llaberia Griñó, José M. (Institute of Electrical and Electronics Engineers (IEEE), 1988)
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    The authors consider a type of condition that can be evaluated without requiring a complete ALU (arithmetic logic unit) operation. The circuit that is presented detects the condition A+B=K (n-bit numbers) in constant time, ...
  • Characterizing and improving the performance of many-core task-based parallel programming runtimes 

    Bosch, Jaume; Tan, Xubin; Álvarez Martínez, Carlos; Jiménez González, Daniel; Martorell Bofill, Xavier; Ayguadé Parra, Eduard (2017)
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    Parallel task-based programming models like OpenMP support the declaration of task data dependences. This information is used to delay the task execution until the task data is available. The dependences between tasks are ...
  • Skip RNN: learning to skip state updates in recurrent neural networks 

    Campos Camunez, Victor; Jou, Brendan; Giró Nieto, Xavier; Torres Viñals, Jordi; Chang, Shih-Fu (2018)
    Comunicació de congrés
    Accés obert
    Recurrent Neural Networks (RNNs) continue to show outstanding performance in sequence modeling tasks. However, training RNNs on long sequences often face challenges like slow inference, vanishing gradients and difficulty ...
  • A template system for the efficient compilation of domain abstractions onto reconfigurable computers 

    Shafiq, Muhammad; Pericàs Gleim, Miquel; Ayguadé Parra, Eduard (2011)
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    Past research has addressed the issue of using FPGAs as accelerators for HPC systems. However, writing low level code for an efficient, portable and scalable architecture altogether has been always a ...
  • Asynchronous PGAS runtime for Myrinet networks 

    Farreras Esclusa, Montserrat; Almasi, George (Association for Computing Machinery (ACM), 2010)
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    PGAS languages aim to enhance productivity for large scale systems. The IBM Asynchronous PGAS runtime (APGAS) supports various high productivity programming languages including UPC, X10 and CAF. The runtime has been designed ...
  • Productive cluster programming with OmpSs 

    Bueno Hedo, Javier; Martinell, Lluis; Duran Gonzalez, Alejandro; Farreras Esclusa, Montserrat; Martorell Bofill, Xavier; Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Springer, 2011)
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    Clusters of SMPs are ubiquitous. They have been traditionally programmed by using MPI. But, the productivity of MPI programmers is low because of the complexity of expressing parallelism and communication, and the difficulty ...

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