Sökning: "samr"

Hittade 5 avhandlingar innehållade ordet samr.

1. 1. Domain-based partitioning for parallel SAMR applications

   Författare :Johan Steensland; Michael Thuné; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Numerical Analysis; Numerisk analys;

   Sammanfattning : This thesis presents a study of domain-based partitioning techniques for dynamic structured grid hierarchies, occuring in structured adaptive mesh refinement (SAMR) methods. Such methods for obtaining the numerical solution to partial differential equations yield highly advantageous ratios for cost/accuracy as compared to methods based upon static uniform approximations. LÄS MER

3. 2. Autonomic Management of Partitioners for SAMR Grid Hierarchies

   Författare :Henrik Johansson; Jarmo Rantakokko; Michael Thuné; Johan Steensland; Manish Parashar; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap; Scientific Computing;

   Sammanfattning : Parallel structured adaptive mesh refinement methods decrease the execution time and memory usage of partial differential equation solvers by adaptively assigning computational resources to regions with large solution errors. These methods result in a dynamic grid hierarchy. LÄS MER

4. 3. Samrådssystemet : en klinisk undersökning i ett växande företag

   Författare :Curt Berg; Handelshögskolan i Stockholm; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : Relativt öppna organisationssystem anses av vissa forskare bli allt mer intressanta för företag och förvaltningar. En av anledningarna till detta är att det i sådana system tycks vara möjligt att förena uppnående av företagets syfte och tillfredsställande av anställdas behov. LÄS MER

5. 4. Efficient Partitioning of Dynamic Structured Grid Hierarchies

   Författare :Johan Steensland; Michael Thuné; Jarmo Rantakokko; Charles Norton; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; scientific computing; partitioning; structured grids; adaptive mesh refinement; dynamic load balancing; Beräkningsvetenskap; Scientific Computing;

   Sammanfattning : This thesis aims at decreasing execution time for large-scale structured adaptive mesh refinement (SAMR) applications executing on general parallel computers. The key contributions are (1) A conceptual dynamically adaptive meta-partitioner able to select and configure an appropriate partitioning technique, based on application and computer state, and (2) A characterization of new and existing domain-based partitioners, enabling a mapping from application and computer state onto appropriate partitioners, and (3) Sketched scalable solutions, expressed in terms of natural regions and expert algorithms, for the problem to efficiently partition large-scale SAMR applications with deep grid hierarchies executing on general parallel computers, and (4) A software partitioning tool Nature+Fable, implementing the greater parts of these sketched scalable solutions and engineered as part of the meta-partitioner. LÄS MER

7. 5. An Eye for an I : Focus on integration in WIL

   Författare :Lennarth Bernhardsson; Martin Gellerstedt; Lars Svensson; Högskolan Väst; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Work-Integrated Learning; Work-Integrated Education; Workplace learning; Work-based learning; Lärande; Progression; Work Integrated Learning; Arbetsintegrerat lärande;

   Sammanfattning : This licentiate thesis describes the development and change of forms within a course with a focus on Work-Integrated Learning (WIL). For several years I have been responsible for a course and at the same time author of the syllabus for the course and seen how weak the integration is, and how it is perceived by the students, between theoretical knowledge and the practical work during an internship period. LÄS MER