Now showing items 1-5 of 5

  • Global misrouting policies in two-level hierarchical networks 

    Garcia, Marina; Vallejo, Enrique; Beivide Palacio, Julio Ramón; Odriozola, Miguel; Camarero Coterillo, Cristobal; Valero Cortés, Mateo; Labarta Mancho, Jesús José; Rodriguez, German (2013)
    Conference report
    Restricted access - publisher's policy
    Dragonfly networks are composed of interconnected groups of routers. Adaptive routing allows packets to be forwarded minimally or non-minimally adapting to the traffic conditions in the network. While minimal routing sends ...
  • Light NUCA: a proposal for bridging the inter-cache latency gap 

    Suárez, Dario; Monreal Arnal, Teresa; Vallejo, Fernando; Beivide Palacio, Julio Ramón; Viñals Yufera, Víctor (IEEE Computer Society, 2009)
    Conference lecture
    Open Access
    To deal with the “memory wall” problem, microprocessors include large secondary on-chip caches. But as these caches enlarge, they originate a new latency gap between them and fast L1 caches (inter-cache latency gap). ...
  • Peripheral twists for torus topologies with arbitrary aspect ratio 

    Vallejo Gutiérrez, Enrique; Moreto Planas, Miquel; Martínez, Carmen; Beivide Palacio, Julio Ramón (2011)
    Conference report
    Open Access
    A torus is a common topology used in supercomputer networks. Asymmetric Tori suffer from resource usage imbalance, which translates to reduced performance. Twisted Tori employ a twist in the peripheral links of one or more ...
  • Symmetric L-graphs 

    Camarero, Cristóbal; Martínez, Carmen; Beivide Palacio, Julio Ramón (Iniciativa Digital Politècnica, 2011)
    Conference report
    Open Access
    In this paper we characterize symmetric L-graphs, which are either Kronecker products of two cycles or Gaussian graphs. Vertex symmetric networks have the property that the communication load is uniformly distributed on ...
  • Task mapping in rectangular twisted tori 

    Camarero Coterillo, Cristobal; Vallejo, Enrique; Martínez Fernández, Maria del Carmen; Moreto Planas, Miquel; Beivide Palacio, Julio Ramón (Association for Computing Machinery (ACM), 2013)
    Conference report
    Open Access
    Twisted torus topologies have been proposed as an alternative to toroidal rectangular networks, improving distance parameters and providing network symmetry. However, twisting is apparently less amenable to task mapping ...