Now showing items 1-20 of 25

    • Adaptive scheduling on power-aware managed data-centers using machine learning 

      Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (IEEE Computer Society Publications, 2011)
      Conference report
      Restricted access - publisher's policy
      Energy-related costs have become one of the major economic factors in IT data-centers, and companies and the research community are currently working on new efficient power-aware resource management strategies, also known ...
    • Adaptive scheduling on power-aware managed data-centers using machine learning 

      Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2011)
      Research report
      Open Access
      Energy-related costs have become one of the major economic factors in IT data-centers, and companies and the research community are currently working on new efficient power-aware resource management strategies, also known ...
    • Architecture and micro-architecture support for virtual machines and datacenters 

      Vilanova, Lluís (Barcelona Supercomputing Center, 2019)
      Other
      Open Access
    • Controlling Network Latency in Mixed Hadoop Clusters: Do We Need Active Queue Management? 

      Fischer e Silva, Renan; Carpenter, Paul Matthew (IEEE, 2016-12-26)
      Conference report
      Open Access
      With the advent of big data, data center applications are processing vast amounts of unstructured and semi-structured data, in parallel on large clusters, across hundreds to thousands of nodes. The highest performance for ...
    • Data plane technology-agnostic control and orchestration architecture for optical disaggregated data centers 

      Agraz Bujan, Fernando; Pagès Cruz, Albert; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Conference report
      Restricted access - publisher's policy
      We propose a novel SDN control and orchestration architecture to provide composed IaaS over optical disaggregated data centers. We experimentally validate intent-based mechanisms that make the architecture independent from ...
    • Data visualization in the Data Center Infrastructure Management field 

      Maller Roig, Joan (Universitat Politècnica de Catalunya, 2021-10-29)
      Bachelor thesis
      Restricted access - confidentiality agreement
      La Revolució Digital s'ha caracteritzat per un ús generalitzat d'Internet i la generació de grans quantitats de dades. El càlcul i l'anàlisi d'aquestes dades, però, no sempre són automàtics. Sovint cal l'ajuda humana per ...
    • Diluting the Scalability Boundaries: Exploring the Use of Disaggregated Architectures for High-Level Network Data Analysis 

      Vega, Carlos; Zazo, Jose F.; Meyer, Hugo; Zyulkyarov, Ferad; Lopez-Buedo, S.; Aracil, Javier (IEEE, 2018-02-15)
      Conference lecture
      Open Access
      Traditional data centers are designed with a rigid architecture of fit-for-purpose servers that provision resources beyond the average workload in order to deal with occasional peaks of data. Heterogeneous data centers are ...
    • Disaggregated Computing. An Evaluation of Current Trends for Datacentres 

      Meyer, Hugo; Sancho, Jose C.; Quiroga, Josue V.; Zyulkyarov, Ferad; Roca, Damian; Nemirovsky, Mario (Elsevier, 2017)
      Article
      Open Access
      Next generation data centers will likely be based on the emerging paradigm of disaggregated function-blocks-as-a-unit departing from the current state of mainboard-as-a-unit. Multiple functional blocks or bricks such as ...
    • DMRlib: Easy-coding and efficient resource management for job malleability 

      Iserte, Sergio; Mayo, Rafael; Quintana Ortí, Enrique Salvador; Peña, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Article
      Open Access
      Process malleability has proved to have a highly positive impact on the resource utilization and global productivity in data centers compared with the conventional static resource allocation policy. However, the non-negligible ...
    • Energy optimization and analysis with EAR 

      Corbalán González, Julita; Alonso Jane, Lluís; Aneas Gómez, Jordi; Brochard, Luigi (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      EAR is an energy management framework which offers three main services: energy accounting, energy control, and energy optimization. The latter is done through the EAR runtime library (EARL). EARL is a dynamic, transparent, ...
    • Energy optimizing methodologies on heterogeneous data centers 

      Nishtala, Rajiv; Carpenter, Paul Matthew; Petrucci, Vinicius; Martorell Bofill, Xavier (Barcelona Supercomputing Center, 2017-05-04)
      Conference report
      Open Access
      In 2013, U.S. data centers accounted for 2.2% of the country’s total electricity consumption, a figure that is projected to increase rapidly over the next decade. Many important work-loads are interactive, and they demand ...
    • Experimental assessment of an SDN-based control of OPS switching nodes for intra-data center interconnect 

      Agraz Bujan, Fernando; Miao, Wang; Ferrer Delgado, Alejandro; Bernini, Giacomo; Dorren, Harm; Calabretta, Nicola; Ciulli, Nicola; Perelló Muntan, Jordi; Peng, Shuping; Zervas, Georgios; Simeonidou, Dimitra; Junyent Giralt, Gabriel; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      An SDN-based control framework for OPS switches is experimentally assessed. The OpenFlow messages enabling control communication between SDN controller and OPS switch are validated. Dynamic OPS virtual network slices for ...
    • Experimental assessment of SDN-enabled reconfigurable OPSquare data center networks with QoS guarantees 

      Xue, Xuwei; Wang, Fulong; Agraz Bujan, Fernando; Pagès Cruz, Albert; Pan, B; Yan, F; Spadaro, Salvatore; Calabretta, Nicola (Optical Society of American (OSA), 2019)
      Conference report
      Restricted access - publisher's policy
      An SDN-controlled DCN enabling QoS-driven network-slice reconfiguration and packet priority updating is experimentally assessed. Network-slice can be reconfigured within 150 ms to decrease packet loss. The measured ToR-to-ToR ...
    • Experimental assessment of SDN-enabled sliceable OPSquare data center network with deterministic QoS 

      Xue, Xuwei; Wang, Fu; Agraz Bujan, Fernando; Pagès Cruz, Albert; Yan, Fulong; Spadaro, Salvatore; Calabretta, Nicola (2019)
      Conference report
      Restricted access - publisher's policy
      An SDN-enabled sliceable DCN with deterministic QoS guarantees is experimentally assessed. Flow priorities are dynamically assigned to each network-slice to prevent statistical latency and packet-loss due to packet ...
    • Explicit uncore frequency scaling for energy optimisation policies with EAR in Intel architectures 

      Corbalán González, Julita; Vidal Teruel, Oriol; Alonso Jane, Lluís; Aneas Gómez, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      EAR is an energy management framework which offers three main services: energy accounting, energy control and energy optimisation. The latter is done through the EAR runtime library (EARL). EARL is a dynamic, transparent, ...
    • Multifaceted resource management on virtualized providers 

      Goiri Presa, Íñigo (Universitat Politècnica de Catalunya, 2011-06-14)
      Doctoral thesis
      Open Access
      Last decade, providers started using Virtual Machines (VMs) in their datacenters to pack users and their applications. This was a good way to consolidate multiple users in fewer physical nodes while isolating them from ...
    • Optimal virtual slice composition toward multi-tenancy over hybrid OCS/OPS data center networks 

      Pagès Cruz, Albert; Pérez Sanchis, Miguel; Peng, Shuping; Perelló Muntan, Jordi; Simeonidou, Dimitra; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2015-10-01)
      Article
      Open Access
      Multi-tenancy is a key feature of modern data centers. It allows for the existence of multiple independent virtual infrastructures, called virtual slices, on top of the same physical infrastructure, each of them specially ...
    • Orchestrating virtual machine migrations in telecom clouds 

      Barrera Sanson, Joaquim; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      A throughput model is experimentally assessed and then used to compare nonorchestrated against orchestration when multiple VMs are migrated among datacenters in a telecom cloud. Numerical results show migration time ...
    • Orchestrating virtual slices in data centre infrastructures with optical DCN 

      Pagès Cruz, Albert; Agraz Bujan, Fernando; Montero Herrera, Rafael; Landi, Giada; Capitani, Marco; Gallico, Domenico; Biancani, Matteo; Nejabati, Reza; Simeonidou, Dimitra; Spadaro, Salvatore (2019-07-01)
      Article
      Open Access
      The emergence of new paradigms and services is pushing the limits of nowadays cloud infrastructures. It is a fact that current solutions lack in the flexibility and configurability to adapt to heterogeneous requirements ...
    • Protected elastic-tree topologies for data centers 

      Ouro Paz, Elena (Universitat Politècnica de Catalunya, 2016-05)
      Bachelor thesis
      Open Access
      Covenantee:   Trường đại học bách khoa Hà Nội
      Traditional data centers represent a significant portion of the yearly power consumption all around the world, many solutions have been submitted to solve this issue such as the elastic-tree topology, a dynamic network ...