Now showing items 1-20 of 35

    • ABNO-driven content distribution in the telecom cloud 

      Gifre Renom, Lluís; Tornatore, Massimo; Contreras Murillo, Luis Miguel; Mukherjee, Biswanath; Velasco Esteban, Luis Domingo (2017-11-01)
      Article
      Open Access
      As current traffic growth is expected to strain capacity of today¿s metro network, novel content distribution architectures where contents are placed closer to the users are being investigated. In that regard, telecom ...
    • Adaptive MapReduce scheduling in shared environments 

      Polo Bardés, Jordà; Becerra Fontal, Yolanda; Carrera Pérez, David; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Steinder, Malgorzata (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      In this paper we present a MapReduce task scheduler for shared environments in which MapReduce is executed along with other resource-consuming workloads, such as transactional applications. All workloads may potentially ...
    • Adaptive prediction models for data center resources utilization estimation 

      Baig, Shuja-ur-Rehman; Iqbal, Waheed; Berral García, Josep Lluís; Erradi, Abdelkarim; Carrera Pérez, David (2019-12)
      Article
      Open Access
      Accurate estimation of data center resource utilization is a challenging task due to multi-tenant co-hosted applications having dynamic and time-varying workloads. Accurate estimation of future resources utilization helps ...
    • Adaptive sliding windows for improved estimation of data center resource utilization 

      Baig, Shuja-ur-Rehman; Iqbal, Waheed; Berral García, Josep Lluís; Carrera Pérez, David (Elsevier, 2020-03)
      Article
      Open Access
      Accurate prediction of data center resource utilization is required for capacity planning, job scheduling, energy saving, workload placement, and load balancing to utilize the resources efficiently. However, accurately ...
    • Balanceig de càrrega en els servidors d'una entitat bancària 

      Badias Simó, Mar (Universitat Politècnica de Catalunya, 2019-07-03)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   ITnow
    • Batch job profiling and adaptive profile enforcement for virtualized environments 

      Becerra Fontal, Yolanda; Carrera Pérez, David; Ayguadé Parra, Eduard (IEEE Computer Society, 2009)
      Conference lecture
      Open Access
      Data center management is driven by high-level performance goals, and it is the responsibility of a management middleware to ensure that those goals are met using dynamic resource allocation. The performance delivered by ...
    • Benefits of programmable topological routing policies in RINA-enabled large-scale datacenters 

      Leon Gaixas, Sergio; Perelló Muntan, Jordi; Grasa, Eduard; Lopez, Diego; Aranda Gutiérrez, Pedro Andrés; Careglio, Davide (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      With the proliferation of cloud computing and the expected requirements of future Internet of Things (IoT) and 5G network scenarios, more efficient and scalable Data Centers (DCs) will be required, offering very large pools ...
    • Carrier SDN to control flexgrid-based inter-datacenter connectivity 

      Asensio Carmona, Adrian; Velasco Esteban, Luis Domingo; Ruiz Ramírez, Marc; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Datacenter federations are able to manage appropriately the green energy resources available in each datacenter (DC) thanks to their geographically distributed infrastructure, thus reducing energy expenditure. Scheduling ...
    • Datacenter computers: modern challenges in CPU design 

      Sites, Richard L. (Barcelona Supercomputing Center, 2016-09-10)
      Conference report
      Open Access
      Computers used as datacenter servers have usage patterns that differ substantially from those of desktop or laptop computers. We discuss four key differences in usage and their first-order implications for designing computers ...
    • DRMaestro: orchestrating disaggregated resources on virtualized data-centers 

      Carneiro do Amaral, Marcelo; Polo Bardés, Jorda; Carrera Pérez, David; González, Nelson; Yang, Chih-Chieh; Morari, Alessandro; D'Amora, Bruce; Youssef, Alaa; Steinder, Malgorzata (Springer, 2021-03-06)
      Article
      Open Access
      Modern applications demand resources at an unprecedented level. In this sense, data-centers are required to scale efficiently to cope with such demand. Resource disaggregation has the potential to improve resource-efficiency ...
    • Energy and carbon emissions aware services allocation with delay for Data Centers 

      Guillén, Bernat; Hesselbach Serra, Xavier; Muñoz López, Francisco Javier; Klingert, Sonja (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents a new approach to service assignment in Data Centers (DC), relating it to a classical combinatory problem called Bin Packing Problem and adding the possibility of delay and collaboration with users ...
    • Energy efficiency dilemma: P2P-cloud vs. datacenter 

      Sharifi, Leila; Rameshan, Navaneeth; Freitag, Fèlix; Veiga, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Energy consumption is increasing in the IT sector and a remarkable part of this energy is consumed in data centers. Numerous techniques have been proposed to solve the energy efficiency issue in cloud systems. Recently, ...
    • Energy efficient cloud service provisioning: Keeping data center granularity in perspective 

      Sharifi, Leila; Cerdà Alabern, Llorenç; Freitag, Fèlix; Veiga, Luis (2016-06)
      Article
      Open Access
      The cost of power and its associated delivery are becoming significant factors in the total expenditure of large-scale data centers. Numerous techniques have been proposed to address the energy efficiency issue in cloud ...
    • Energy-efficient and multifaceted resource management for profit-driven virtualized data centers 

      Goiri Presa, Íñigo; Berral García, Josep Lluís; Fitó, Josep Oriol; Julià Massó, Ferran; Nou Castell, Ramon; Guitart Fernández, Jordi; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (Elsevier, 2012-05)
      Article
      Restricted access - publisher's policy
      As long as virtualization has been introduced in data centers, it has been opening new chances for resource management. Nowadays, it is not just used as a tool for consolidating underused nodes and save power; it also ...
    • Estudi de la climatització d'un centre de processament de dades (CPD) 

      Bobouh Abakouy, Kamal (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      En l’interior d’ un centre de processament de dades (CPD) es troben diferents equips informàtics i de comunicacions que, com tot aparell electrònic en funcionament, incrementen de temperatura per l’efecte Joule en les parts ...
    • Estudi de la implantación d'un data center de BITCOINS 

      Salame Serra, Nicolás (Universitat Politècnica de Catalunya, 2015-06)
      Bachelor thesis
      Restricted access - author's decision
    • Evaluating network-based DoS attacks under the energy consumption perspective: new security issues in the coming green ICT area 

      Palmieri, Francesco; Ricciardi, Sergio; Fiore, Ugo (2011)
      Conference report
      Restricted access - publisher's policy
      In the green Information and Communication Society (ICS), new form of Denial of Service (DoS) attacks may be put in place: exploiting the computational and storage resources of datacenters with the aim of consuming as much ...
    • iONE: an environment for experimentally assessing in-operation network planning algorithms 

      Gifre Renom, Lluís; Navarro, Nacho; Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      Huge amount of algorithmic research is being done in the field of optical networks, including Routing and Spectrum Allocation (RSA), elastic operations, spectrum defragmentation, and other re-optimization algorithms. ...
    • Manteniment remot de laboratoris d'informàtica 

      Prats Farré, Raimon (Universitat Politècnica de Catalunya, 2007-06)
      Master thesis (pre-Bologna period)
      Open Access
    • OFAR-CM: Efficient Dragonfly networks with simple congestion management 

      García, Marina; Vallejo, Enrique; Beivide Palacio, Ramon; Valero Cortés, Mateo; Rodríguez, Germán (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Open Access
      Dragonfly networks are appealing topologies for large-scale Data center and HPC networks, that provide high throughput with low diameter and moderate cost. However, they are prone to congestion under certain frequent traffic ...