Sökning: "Olov Östberg"

Hittade 5 avhandlingar innehållade orden Olov Östberg.

  1. 1. Architectures, design methodologies, and service composition techniques for Grid job and resource management

    Författare :Per-Olov Östberg; Erik Elmroth; Umeå universitet; []
    Nyckelord :;

    Sammanfattning : The field of Grid computing has in recent years emerged and been established as an enabling technology for a range of computational eScience applications. The use of Grid technology allows researchers and industry experts to address problems too large to efficiently study using conventional computing technology, and enables new applications and collaboration models. LÄS MER

  3. 2. Virtual infrastructures for computational science: software and architectures for distributed job and resource management

    Författare :Per-Olov Östberg; Erik Elmroth; Odej Kao; Umeå universitet; []
    Nyckelord :;

    Sammanfattning : In computational science, the scale of problems addressed and the resolution of solu- tions achieved are often limited by the available computational capacity. The current methodology of scaling computational capacity to large scale (i.e. LÄS MER

  4. 3. HPC scheduling in a brave new world

    Författare :Rodrigo Gonzalo P.; Erik Elmroth; Lavanya Ramakrishnan; Per-Olov Östberg; Ewa Deelman; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; High Performance Computing; HPC; supercomputing; scheduling; workflows; workloads; exascale; business data processing; administrativ databehandling;

    Sammanfattning : Many breakthroughs in scientific and industrial research are supported by simulations and calculations performed on high performance computing (HPC) systems. These systems typically consist of uniform, largely parallel compute resources and high bandwidth concurrent file systems interconnected by low latency synchronous networks. LÄS MER

  5. 4. Analysing, modelling and controlling power-performance tradeoffs in data center infrastructures

    Författare :Jakub Krzywda; Erik Elmroth; Per-Olov Östberg; Ahmed Ali-Eldin; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The aim of this thesis is to analyse the power-performance tradeoffs in datacenter servers, create models that capture these tradeoffs, and propose controllers to optimise the use of data center infrastructures taking the tradeoffs into consideration. The main research problem that we investigate in this thesis is how to increase the power efficiency of data center servers taking into account the power-performance tradeoffs. LÄS MER

  7. 5. May the power be with you : managing power-performance tradeoffs in cloud data centers

    Författare :Jakub Krzywda; Erik Elmroth; Per-Olov Östberg; Ahmed Ali-Eldin; Tarek F. Abdelzaher; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cloud computing; data centers; power efficiency; power budgeting; application performance;

    Sammanfattning : The overall goal of the work presented in this thesis was to find ways of managing power-performance tradeoffs in cloud data centers. To this end, the relationships between the power consumption of data center servers and the performance of applications hosted in data centers are analyzed, models that capture these relationships are developed, and controllers to optimize the use of data center infrastructures are proposed. LÄS MER