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Polyhedral geometry and its implications in architectureCastelino, Christopher V. January 1974 (has links)
No description available.
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Polyhedral geometry and its implications in architectureCastelino, Christopher V. January 1974 (has links)
No description available.
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Performance Analysis of a Hierarchical, Cache-Coherent, Shared Memory Based, Multi-processor SystemNayyar, Raman 09 June 1993 (has links)
We have conducted a performance analysis of a large scale multiprocessor system based on shared buses organized in a hierarchical fashion and employing an easy to implement snoopy cache protocol. · This arrangement, named TREEBUS [ 5], presents a logical extension path for multiprocessor systems based on a single shared bus whose scalability is limited by the available system bus bandwidth [26]. The multiple, independent, hierarchical buses overcome the bus bandwidth limitation and the architecture can scale to relatively large sizes. We have developed an easy to use, reasonably accurate and computationally efficient analytic model for analyzing the performance of the memory hierarchy. Our analysis presents a balanced view by incorporating cost and size of the memory subsystem, two parameters which can significantly impact the feasibility of this architecture. The results indicate that the TREEBUS can deliver high performance for a maximum of about 512 processors using available technology. For larger sizes, the problem is not the limited system bus bandwidth but the unmanageable size of the main memory and a deteriorating cost/performance ratio.
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A B-Spline Geometric Modeling Methodology for Free Surface SimulationNandihalli, Sunil S 08 May 2004 (has links)
Modeling the free surface flows is important in order to estimate the total drag of the sea Vessels. It is also necessary to study the effects of various maritime maneuvers. In this work, different ways of approximating an unstructured free surface grid with a B-spline surface are investigated. The Least squares and Galerkin approaches are studied in this regard. B-spline nite element method (BSPFEM) is studied for the solution of the steady-state kinematic free surface equation. The volume grid has to be moved in order to match the free boundary when the surface-tracking approach is adopted for the solution of free surface problem. Inherent smoothness of the B-spline representation of the free surface aids this process. B-spline representation of the free surface aids in building viscous volume grids hose boundaries closely match the steady state free surface. The B-spline approximation algorithm and BSPFEM solution of free surface equation have been tested with hypothetical algebraic testcases and real cases such as Gbody, Wigley hull and David Taylor Model Basin(DTMB) 5415 hull series.
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Parametric design methodology and visualization for single curvature tensegrity structuresKim, Jinman 28 August 2008 (has links)
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