Ara es mostren els items 110-129 de 129

    • TauRieL: targeting Traveling Salesman Problem with deep reinforcement learning 

      Malazgirt, Gorker Alp; Unsal, Osman Sabri; Cristal Kestelman, Adrián (Barcelona Supercomputing Center, 2019-05-07)
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    • The MS-processor's register file timing and power evaluation 

      Gonzalez Martin, Isidro; Cristal Kestelman, Adrián; Veindenbaum, Alex; Ramírez, Marco Antonio; Valero Cortés, Mateo (2008-09)
      Report de recerca
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      Power evaluation is an important issue in new proposal chip level architectures due to the big amount of power is dissipated as head and chips have limited head dissipation capacity. The evaluation shown in this technical ...
    • The velox transactional memory stack 

      Cristal Kestelman, Adrián; Felber, Pascal; Riviere, Etienne; Moreira, Walter Maldonado; Harmanci, Derin; Marlier, Patrick; Diestelhorst, Stephan; Hohmuth, Michael; Pohlack, Martin; Afek, Yehuda; Tomić, Saša; Drepper, Ulrich; Gramoli, Vincent; Kapalka, Michal; Guerraoui, Rachid; Dragojevic, Aleksandar; Stenstrom, Per; Unsal, Osman Sabri; Hur, Ibrahim; Korland, Guy; Nowack, Martin; Riegel, Torvald; Shavit, Nir; Fetzer, Christof (2010-09)
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      The transactional memory programming paradigm could become the coordination methodology of choice for actual and future multicore and many-core architectures. The transactional memory support spans a complete software and ...
    • TM-dietlibc: A TM-aware real-world system library 

      Smiljkovic, Vesna; Nowack, Martin; Miletic, Nebojša; Harris, Tim; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      The simplicity of concurrent programming with Transactional Memory (TM) and its recent implementation in mainstream processors greatly motivates researchers and industry to investigate this field and propose new implementations ...
    • Towards fair, scalable, locking 

      Vallejo, Enrique; Sanyal, Sutirtha; Harris, Tim; Vallejo, Fernando; Beivide Palacio, Ramon; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (2008)
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      Without care, Hardware Transactional Memory presents several performance pathologies that can degrade its performance. Among them, writers of commonly read variables can suffer from starvation. Though different solutions ...
    • Towards zero-waste recovery and zero-overhead checkpointing in ensemble data assimilation 

      Keller, Kai Rasmus; Cristal Kestelman, Adrián; Bautista Gomez, Leonardo (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Ensemble data assimilation is a powerful tool for increasing the accuracy of climatological states. It is based on combining observations with the results from numerical model simulations. The method comprises two steps, ...
    • Transaction processing core for accelerating software transactional memory 

      Zyulkyarov, Ferad Hasanov; Milovanovic, Milos; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Valero Cortés, Mateo; Harris, Tim (2007-08)
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      This paper introduces an advanced hardware based approach for accelerating Software Transactional Memory (STM). The proposed solution focuses on speeding up conflict detection that grows polynomially with the number of ...
    • Transactional memory and OpenMp 

      Milovanovic, Milos; Ferrer, Roger; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (2007-06)
      Article
      Accés restringit per política de l'editorial
      Future generations of Chip Multiprocessors (CMP) will provide dozens or even hundreds of cores inside the chip. Writing applications that benefit from the massive computational power offered by these chips is not going to ...
    • Transactional memory: an overview 

      Harris, T; Cristal Kestelman, Adrián; Unsal, Osman Sabri; Ayguadé Parra, Eduard; Gagliardi, F; Smith, B; Valero Cortés, Mateo (2007-05)
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      Accés restringit per política de l'editorial
      Writing applications that benefit from the massive computational power of future multicore chip multiprocessors will not be an easy task for mainstream programmers accustomed to sequential algorithms rather than parallel ...
    • Understanding power consumption and reliability of high-bandwidth memory with voltage underscaling 

      Nabavilarimi, Seyed Saber; Salami, Behzad; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Sarbazi-Azad, Hamid; Mutlu, Onur (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Modern computing devices employ High-Bandwidth Memory (HBM) to meet their memory bandwidth requirements. An HBM-enabled device consists of multiple DRAM layers stacked on top of one another next to a compute chip (e.g, ...
    • VALib and SimpleVector: Tools for rapid initial research on vector architectures 

      Stanic, Milan; Palomar Pérez, Óscar; Ratkovic, Ivan; Duric, Milovan; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (Association for Computing Machinery (ACM), 2014)
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      Vector architectures have been traditionally applied to the supercomputing domain with many successful incarnations. The energy efficiency and high performance of vector processors, as well as their applicability in other ...
    • Vector extensions for decision support DBMS acceleration 

      Hayes, Timothy; Palomar Pérez, Óscar; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (IEEE, 2012)
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      Database management systems (DBMS) have become an essential tool for industry and research and are often a significant component of data centres. As a result of this criticality, efficient execution of DBMS engines has ...
    • Vector processing-aware advanced clock-gating techniques for low-power fused multiply-add 

      Ratkovic, Ivan; Palomar Pérez, Óscar; Stanic, Milan; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (2018-04-04)
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      The need for power efficiency is driving a rethink of design decisions in processor architectures. While vector processors succeeded in the high-performance market in the past, they need a retailoring for the mobile market ...
    • VIA: a smart scratchpad for vector units with application to sparse matrix computations 

      Pavón Rivera, Julián; Unsal, Osman Sabri; Cristal Kestelman, Adrián (Barcelona Supercomputing Center, 2021-05)
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      Sparsematrix operations are critical kernels inmultiple application domains such as High Performance Computing, artificial intelligence and big data. Vector processing is widely used to improve performance on mathematical ...
    • VIA: A smart scratchpad for vector units with application to sparse matrix computations 

      Pavón Rivera, Julián; Vargas Valdivieso, Iván; Barredo Ferreira, Adrián; Marimon Illana, Joan; Moretó Planas, Miquel; Moll Echeto, Francisco de Borja; Unsal, Osman Sabri; Valero Cortés, Mateo; Cristal Kestelman, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Sparse matrix operations are critical kernels in multiple application domains such as High Performance Computing, artificial intelligence and big data. Vector processing is widely used to improve performance on mathematical ...
    • ViPS: Visual processing system for medical imaging 

      Hussain, Tassadaq; Palomar, Oscar; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Haider, Amna (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      Imaging has become an indispensable tool in modern medicine. Various powerful and expensive platforms to study medical imaging applications appear in recent years. In this article, we design and propose a Visual Processing ...
    • Vitruvius+: An area-efficient RISC-V decoupled vector coprocessor for high performance computing applications 

      Minervini Minervini, Francesco; Palomar Pérez, Óscar; Unsal, Osman Sabri; Reggiani, Enrico; Quiroga Esparza, Josué Vladimir; Marimon Illana, Joan; Rojas Morales, Carlos; Figueras Bagué, Roger; Ruíz Ramírez, Abraham Josafat; González Trejo, Alberto; Mendoza Escobar, Jonnatan; Vargas Valdivieso, Ivan; Hernández Calderón, César Alejandro; Cabre Olive, Joan; Khoirunisya, Lina; Bouhali, Mustapha; Pavón Rivera, Julián; Moll Echeto, Francisco de Borja; Olivieri, Mauro; Kovac, Mario; Kovac, Mate; Dragic, Leon; Valero Cortés, Mateo; Cristal Kestelman, Adrián (2023-03-01)
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      The maturity level of RISC-V and the availability of domain-specific instruction set extensions, like vector processing, make RISC-V a good candidate for supporting the integration of specialized hardware in processor cores ...
    • VPPET: virtual platform power and energy estimation tool for heterogeneous MPSoC based FPGA platforms 

      Rethinagiri, Santhosh Kumar; Palomar Pérez, Óscar; Arias Moreno, Francisco Javier; Unsal, Osman Sabri; Cristal Kestelman, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Using low-power symmetric multi-cores on FPGAs are becoming ubiquitous in embedded computing. This is due to the emergence of power and energy as key design metrics, as important as performance. This leads to the requirement ...
    • VSR sort: a novel vectorised sorting algorithm and architecture extensions for future microprocessors 

      Hayes, Timothy; Palomar Pérez, Óscar; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      Sorting is a widely studied problem in computer science and an elementary building block in many of its subfields. There are several known techniques to vectorise and accelerate a handful of sorting algorithms by using ...
    • WormBench: technical report 

      Zyulkyarov, Ferad Hasanov; Cvijic, Sanja; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Harris, Tim; Valero Cortés, Mateo (2008-08)
      Report de recerca
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      Transactional Memory (TM) is a promising new technology that makes it possible to ease writing multi-threaded applications. Many different TM implementations exist, unfortunately most of those TM systems are currently ...