Search for dissertations about: "hierarchical techniques"

Showing result 1 - 5 of 122 swedish dissertations containing the words hierarchical techniques.

2. 1. Hierarchical Variance Reduction Techniques for Monte Carlo Rendering

   Author : Petrik Clarberg; Institutionen för datavetenskap; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; computer graphics; Monte Carlo methods; importance sampling; hierarchical techniques; rendering;

   Abstract : Ever since the first three-dimensional computer graphics appeared half a century ago, the goal has been to model and simulate how light interacts with materials and objects to form an image. The ultimate goal is photorealistic rendering, where the created images reach a level of accuracy that makes them indistinguishable from photographs of the real world. READ MORE

4. 2. Advances in Task-Based Parallel Programming for Distributed Memory Architectures

   Author : Afshin Zafari; Elisabeth Larsson; George Bosilca; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parallel programming; task-based programming; distributed memory system; scientific computing; hierarchical data; hierarchical tasks;

   Abstract : It has become common knowledge that parallel programming is needed for scientific applications, particularly for running large scale simulations. Different programming models are introduced for simplifying parallel programming, while enabling an application to use the full computational capacity of the hardware. READ MORE

5. 3. Hierarchical scheduling for predictable execution of real-time software components and legacy systems

   Author : Rafia Inam; Mikael Sjödin; Jukka Mäki-Turja; Moris Behnam; Giuseppe Lipari; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; real-time systems; component integration and reuse; hierarchical scheduling; multicore; Computer Science; datavetenskap;

   Abstract : This dissertation presents techniques to achieve predictable execution of coarse-grained software components and for preservation of temporal properties of components during their integration and reuse.The dissertation presents a novel concept runnable virtual node (RVN) which interaction with the environment is bounded both by a functional and a temporal interface, and the validity of its internal temporal behaviour is preserved when integrated with other components or when reused in a new environment. READ MORE

6. 4. Lanthanide Metal-Organic Frameworks and Hierarchical Porous Zeolitic Imidazolate Frameworks : Synthesis, Properties, and Applications

   Author : Hani Nasser Abdelhamid; Xiaodong Zou; Belén Martín-Matute; Banglin Chen; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Metal-organic frameworks; Zeolitic imidazolate frameworks; Lanthanide MOFs; Hierarchical porous ZIFs; Inorganic Chemistry; oorganisk kemi;

   Abstract : This thesis presents the synthesis, properties, and applications of two important classes of metal-organic frameworks (MOFs); lanthanide MOFs and hierarchical porous zeolitic imidazolate frameworks (ZIFs). The materials have been characterized using a wide range of techniques including diffraction, imaging, various spectroscopic techniques, gas sorption, dynamical light scattering (DLS) and thermogravimetric analysis (TGA). READ MORE

7. 5. Software Techniques for Distributed Shared Memory

   Author : Zoran Radovic; Erik Hagersten; Sandhya Dwarkadas; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; synchronization; distributed shared memory; write permission cache; nonuniform communication architecture; node affinity; locality; hardware-software trade-off; profiling; flexibility; trap-based memory architecture; Computer engineering; Datorteknik; Data- och systemvetenskap; Computer Systems Sciences;

   Abstract : In large multiprocessors, the access to shared memory is often nonuniform, and may vary as much as ten times for some distributed shared-memory architectures (DSMs). This dissertation identifies another important nonuniform property of DSM systems: nonuniform communication architecture, NUCA. READ MORE