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  • Omega-Test: A predictive early-Z culling to improve the graphics pipeline energy-efficiency 

    Corbalán Navarro, David; Aragón Alcaraz, Juan Luis; Anglada Sánchez, Martí; Lucas Casamayor, Enrique de; Parcerisa Bundó, Joan Manuel; González Colás, Antonio María (2021-06-09)
    Article
    Open Access
    The most common task of GPUs is to render images in real time. When rendering a 3D scene, a key step is to determine which parts of every object are visible in the final image. There are different approaches to solve the ...

  • LAWS: Locality-AWare Scheme for automatic speech recognition 

    Yazdani Aminabadi, Reza; Arnau Montañés, José María; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2020-08-01)
    Article
    Open Access
    Automatic Speech Recognition (ASR) systems are changing the way people interact with different applications on mobile devices. Fulfilling such user-interactivity requires not only a highly accurate, large-vocabulary ...

  • Design and evaluation of an ultra low-power human-quality speech recognition system 

    Pinto Rivero, Daniel; Arnau Montañés, José María; González Colás, Antonio María (2020-11)
    Article
    Open Access
    Automatic Speech Recognition (ASR) has experienced a dramatic evolution since pioneer development of Bell Lab’s single-digit recognizer more than 50 years ago. Current ASR systems have taken advantage of the tremendous ...

  • Tendencias en la microarquitectura de los procesadores 

    González Colás, Antonio María (Asociación de Técnicos de Informática, 2000-05)
    Article
    Open Access
    En este artículo se revisa la microarquitectura de los procesadores actuales. Seguidamente de presentan las principales expectativas en la evolución de la tecnología. A continuación de destacan las principales limitaciones ...

  • Multi-objective interior design optimization method based on sustainability concepts for post-disaster temporary housing units 

    Hosseini, Seyed Mohammad Amin; Yazdani Aminabadi, Reza; Fuente Antequera, Albert de la (2020-04)
    Article
    Restricted access - publisher's policy
    Temporary housing units (THUs), which are provided after disasters, are crucial in terms of sustainability pillars (economic, social, and environmental). In general, THUs, which are regular houses with minimum space and ...

  • A low-power, high-performance speech recognition accelerator 

    Yazdani, Reza; Arnau Montañés, José María; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2019-12-01)
    Article
    Open Access
    Automatic Speech Recognition (ASR) is becoming increasingly ubiquitous, especially in the mobile segment. Fast and accurate ASR comes at high energy cost, not being affordable for the tiny power-budgeted mobile devices. ...

  • CGPA: Coarse-Grained Pruning of Activations for Energy-Efficient RNN Inference 

    Riera Villanueva, Marc; Arnau Montañés, José María; González Colás, Antonio María (2019-09-01)
    Article
    Open Access
    Recurrent neural networks (RNNs) perform element-wise multiplications across the activations of gates. We show that a significant percentage of activations are saturated and propose coarse-grained pruning of activations ...

  • 2018 International Symposium on Computer Architecture influential paper award 

    González Colás, Antonio María (2018-07-01)
    Article
    Open Access
    The International Symposium on Computer Architecture (ISCA) recognizes every year the most influential paper published in this conference 15 years earlier, based on its impact on research, development, products or ideas. ...

  • Performance analysis and optimization of automatic speech recognition 

    Tabani, Hamid; Arnau Montañés, José María; Tubella Murgadas, Jordi; González Colás, Antonio María (2018-10-01)
    Article
    Open Access
    Fast and accurate Automatic Speech Recognition (ASR) is emerging as a key application for mobile devices. Delivering ASR on such devices is challenging due to the compute-intensive nature of the problem and the power ...

  • SyRA: early system reliability analysis for cross-layer soft errors resilience in memory arrays of microprocessor systems 

    Vallero, Alessandro; Savino, Alessandro; Chatzidimitriou, Athanansios; Kaliorakis, Manolis; Kooli, Maha; Riera Villanueva, Marc; Di Natale, Giorgio; Bosio, Alberto; Canal Corretger, Ramon; Gizopoulos, Dimitris; Di Carlo, Stefano; Anglada Sanchez , Martí; González Colás, Antonio María; Mariani, R. (Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
    Article
    Open Access
    Cross-layer reliability is becoming the preferred solution when reliability is a concern in the design of a microprocessor-based system. Nevertheless, deciding how to distribute the error management across the different ...

  • Visibility rendering order: Improving energy efficiency on mobile GPUs through frame coherence 

    Lucas Casamayor, Enrique de; Marcuello Pascual, Pedro; Parcerisa Bundó, Joan Manuel; González Colás, Antonio María (2019-02-01)
    Article
    Open Access
    During real-time graphics rendering, objects are processed by the GPU in the order they are submitted by the CPU, and occluded surfaces are often processed even though they will end up not being part of the final image, ...

  • Strategies to enhance the 3T1D-DRAM cell variability robustness beyond 22 nm 

    Amat Bertran, Esteve; García Almudéver, Carmen; Aymerich, N.; Canal Corretger, Ramon; Rubio Sola, Jose Antonio (2014-10-01)
    Article
    Open Access
    3T1D cell has been stated as a valid alternative to be implemented on L1 memory cache to substitute 6T, highly affected by device variability as technology dimensions are reduced. In this work, we have shown that 22 nm ...

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