• Accurately measuring contention in Mesh NoCs in time-sensitive embedded systems 

      Cardona Nadal, Jordi; Hernández Luz, Carles; Abella Ferrer, Jaume; Mezzetti, Enrico; Cazorla Almeida, Francisco Javier (Association for Computing Machinery (ACM), 2023-05)
      Article
      Accés obert
      The computing capacity demanded by embedded systems is on the rise as software implements more functionalities, ranging from best-effort entertainment functions to performance-guaranteed safety-related functions. Heterogeneous ...
    • ASCOM: Affordable Sequence-aware COntention Modeling in crossbar-based MPSoCs 

      Giesen León, Jeremy Jens; Mezzetti, Enrico; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Association for Computing Machinery (ACM), 2023)
      Comunicació de congrés
      Accés obert
      Multicore interference that arises when several accesses contend for the same shared hardware resources poses a challenge to the already demanding consolidated verification and validation practice. The Sequence-Aware Pairing ...
    • Computing worst-case contention delays for networks on chip 

      Cardona, Jordi; Hernandez, Carles; Abella Ferrer, Jaume (Barcelona Supercomputing Center, 2020-05)
      Text en actes de congrés
      Accés obert
      Computing performance needs in domains such as automotive, avionics, railway, and space are on the rise. This is fueled by the trend towards implementing an increasing number of product functionalities in software that ...
    • Contention in multicore hardware shared resources: Understanding of the state of the art 

      Fernández, Gabriel; Abella Ferrer, Jaume; Quiñones, Eduardo; Rochange, Christine; Vardanega, Tullio; Cazorla Almeida, Francisco Javier (Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014)
      Text en actes de congrés
      Accés obert
      The real-time systems community has over the years devoted considerable attention to the impact on execution timing that arises from contention on access to hardware shared resources. The relevance of this problem has been ...
    • Contention tracking in GPU last-level cache 

      Barrera Herrera, Javier Enrique; Kosmidis, Leonidas; Tabani, Hamid; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      The Last-level cache (LLC) is one of the main GPU’s shared resources that contributes to improve performance but also increases individual kernel’s performance variability. This is detrimental in scenarios in which some ...
    • Contention tree-based access for wireless machine-to-machine networks with energy harvesting 

      Vázquez Gallego, Francisco; Kalalas, Charalampos; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2017-06)
      Article
      Accés obert
      In this paper, we consider a wireless machine-to-machine network composed of end-devices with energy harvesters that periodically transmit data to a gateway. While energy harvesting allows for perpetual operation, the ...
    • NoCo: ILP-based worst-case contention estimation for mesh real-time manycores 

      Cardona Nadal, Jordi; Hernández Luz, Carles; Mezzetti, Enrico; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (IEEE, 2019-01-07)
      Comunicació de congrés
      Accés obert
      Manycores are capable of providing the computational demands required by functionally-advanced critical applications in domains such as automotive and avionics. In manycores a network-on-chip (NoC) provides access to shared ...
    • Tracking coherence-related contention delays in real-time multicore systems 

      Pujol Torramorell, Roger; Hassan, Mohamed; Tabani, Hamid; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Association for Computing Machinery (ACM), 2023)
      Text en actes de congrés
      Accés obert
      The prevailing use of multicores in Embedded Critical Systems (ECS) is multi-application workloads in which independent applications run in different cores with data sharing restricted to the communication between applications ...
    • Wireless Inverted Pendulum using IEEE 802.15.4 Protocol 

      Hernández Herranz, Aitor (Universitat Politècnica de Catalunya, 2011-05-02)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Kungliga Tekniska högskolan
      Català: Considerant els beneficis potencials de les xarxes sense fils de sensors (WSNs), s'estan convertint en una interessant tecnologia tant per processos com per al control industrial així com per xarxes intel·ligents. ...