Sökning: "Shared Memory"

Visar resultat 6 - 10 av 152 avhandlingar innehållade orden Shared Memory.

  1. 6. Iterative and Adaptive PDE Solvers for Shared Memory Architectures

    Författare :Henrik Löf; Jarmo Rantakokko; Sverker Holmgren; Erik Hagersten; Mark Bull; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; partial differential equations; iterative methods; finite elements; conjugate gradients; adaptive mesh refinement; multigrid; cc-NUMA; distributed shared memory; OpenMP; page migration; TLB shoot-down; bandwidth minimization; reverse Cuthill-McKee; migrate-on-next-touch; affinity; temporal locality; chip multiprocessors; CMP; Beräkningsvetenskap; Scientific Computing;

    Sammanfattning : Scientific computing is used frequently in an increasing number of disciplines to accelerate scientific discovery. Many such computing problems involve the numerical solution of partial differential equations (PDE). LÄS MER

  3. 7. Cross-functional brain imaging of attention, memory, and executive functions : Unity and diversity of neurocognitive component processes

    Författare :Petter Marklund; Lars Nyberg; Akira Miyake; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Human memory; executive functions; prefrontal cortex; sustained and transient neural activity; declarative long-term memory; attention; working memory; functional neuroimaging; cognitive control.; Psychology; Psykologi;

    Sammanfattning : The central theme of the present thesis revolves around the exploration of similarities and differences in brain activity patterns invoked by the component processes underlying mnemonic, executive and attentional functions. The primary aim was to identify and functionally characterize commonly recruited brain regions in terms of shared component processes, which has been a largely neglected area of research in cognitive neuroscience. LÄS MER

  4. 8. Aspects of Declarative Memory Functioning in Adulthood : Cross-Sectional and Longitudinal Studies

    Författare :Michael Rönnlund; Elizabeth Maylor; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; aging; episodic memory; sematic memory; encoding support; crosssectional; longitudinal; Psykologi; Psychology; Psykologi; Psychology; psykologi;

    Sammanfattning : The general objective of the thesis was to examine aspects of declarative memory functioning across the adult life span. The four papers were based on data collected as part of the Betula Prospective Cohort Study (Nilsson et al., 1997) and included largescale population-based samples of participants in the age range 35 to 90. LÄS MER

  5. 9. Shared Memory and OpenMP on Clusters

    Författare :Sven Karlsson; KTH; []
    Nyckelord :computer sicence; electronic engineerring; electrical engineering;

    Sammanfattning : Clusters, i.e., several computers interconnected with acommunication network, provide a cost efficient way to achievehigh performance. Messages are the natural way of communicationin this kind of systems. LÄS MER

  7. 10. Hardware–Software Tradeoffs in Shared-Memory Implementations

    Författare :Håkan Zeffer; Erik Hagersten; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; Computer Science;

    Sammanfattning : Shared-memory architectures represent a class of parallel computer systems commonly used in the commercial and technical market. While shared-memory servers typically come in a large variety of configurations and sizes, the advance in semiconductor technology have set the trend towards multiple cores per die and multiple threads per core. LÄS MER