Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 133 for “"Performance Optimization"”.
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Automatic Performance Optimization of Stencil Codes
… computational intensity. Moreover, the set of optimizations and their parameters also depend on the hardware on which the code is executed. To cut a long story short, current production compilers are not able to fully optimize this class of codes and optimizing each application by hand is not …
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A Study of Disk Performance Optimization.
<p>Response time is one of the most important performance measures associated with a typical multi-user system. Response time, in turn, is bounded by the performance of the input/output (I/O) subsystem. Other than the end user and some external peripherals, the slowest component of the I/O …
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Performance optimization in surface warship design.
Thesis. 1980. M.S.--Massachusetts Institute of Technology. Dept. of Political Science.
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Performance optimization for unmanned vehicle systems
… This thesis develops tools for optimizing the performance of UVS performing ISR missions, assuming such a model.First, in a static environment, the UVS operator typically requires that a vehicle visit a set of waypoints once or repetitively, with no a priori specified order. Minimizing the …
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POWER-AWARE PERFORMANCE OPTIMIZATION ON MULTICORE ARCHITECTURES
… which makes it visually easier to determine optimization opportunities. Asymmetric multiprocessors have been proposed to scale the frequency by exploiting the stacks to achieve power optimization without loosing much performance. To validate our proposed method we used state-of-the-art …
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Automatic Software Performance Optimization on Modern Architectures
… outperforms all the others since their relative performance highly depends on the characteristics of the input data. In the dissertation, we present a machine learning based approach to select the best frequent pattern mining algorithm based on the input characteristics. Three of the fastest …
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Aircraft cruise performance optimization using chattering controls
Aircraft Cruise Performance is examined by using energy-state modelling to investigate fuel-range optimal trajectories. Chattering controls are considered appropriate when the hodograph is non-convex. Classical steady-state cruise, simple chattering-cruise and the extended chattering-cruise models …
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Automatic Parallel Input/output Performance Optimization in Panda
Finally, we must devise proper optimization strategies to search for optimal parameter settings. We present two optimization strategies in this thesis, a rule-based strategy and a simulated annealing-search algorithm. We show that with proper use of these strategies, the Panda performance model can …
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Performance optimization of the VDFS verified file system
… their behavior, they frequently exhibit poor performance relative to their unverified counterparts. Verified file systems are not excepted, and their poor performance limits their utility. These limitations, however, are not intrinsic to verification techniques, but are the result of designing …
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Performance optimization of a split-value voting system
… The main work done in this thesis is a series of performance optimizations to the existing prototype, greatly improving the real-world viability of the system. Finally, we suggest further work that can be done to improve performance, fault tolerance, and security. The code that accompanies this …
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Multi-parameter control for centrifugal compressor performance optimization
The potential performance benefit of actuating inlet guide vane (IGV) angle, variable diffuser vane (VDV) angle and impeller speed to implement a multi-parameter control on a centrifugal compressor system is assessed. The assessment consists of first developing a one-dimensional meanline model for …
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Power and performance optimization of negative capacitance transistor circuits
… for achieving extremely low power and high performance. The negative capacitance exhibited by the ferroelectric layer of the transistor results in very high effective gate capacitance leading to electrostatic voltage amplification. In other words, the internal gate voltage is extremely …
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Autonomic Management And Performance Optimization For Cloud Computing Services
… cloud management system to improve application performance, increase platform efficiency and optimize resource allocation.</p> <p>For large-scale multi-component applications, especially web-based cloud applica- tions, parameter setting is crucial to the service availability and quality. The …
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Image stabilization performance optimization using an optical reference gyroscope
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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Digital Mix Design for Performance Optimization of Asphalt Mixture
… this method takes the mechanical properties or performance of the mixture into consideration, such as inter-aggregate contacts and local stability. A simple visco-elastic model was applied to model the contacts between asphalt binder and aggregates. The surface texture of an aggregate particle …
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Performance Optimization of Public Key Cryptography on Embedded Platforms
… of RAM to large-scale devices featuring PC-like performance with full-blown 32-bit or 64-bit processors, special-purpose acceleration hardware and several gigabytes of RAM. Each of these classes of embedded systems have unique set of challenges in terms of hardware utilization, performance and …
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Satellite Rural Telephone Network Design: A Methodology for Performance Optimization
… cost. A methodology to optimize the network performance has been developed. A set of economic models to evaluate different combinations of network topologies and multiple access techniques have been implemented, and a technical-economic assessment has been performed for the different …
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Performance optimization and energy efficiency of big-data computing workflows
… provides an experiment-based validation of the performance model where the total workload of a moldable job increases along with the degree of parallelism. Furthermore, this dissertation conducts rigorous research on workflow execution dynamics in resource sharing environments and explores the …
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Cross-layer design for network performance optimization in wireless networks
<p>"In this dissertation, I use mathematical optimization approach to solve the complex network problems. Paper l and paper 2 first show that ignoring the bandwidth constraint can lead to infeasible routing solutions. A sufficient condition on link bandwidth is proposed that makes a routing …
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Capacity and Operational Performance Optimization under External Constraints with Uncertainty
… regulations on firms' profitability, operational performance, and decision-making processes. The models relax common simplifying assumptions (i.e., deterministic lead-times, exogenous emissions permit price) to better represent real market characteristics and applications. Specifically, these …
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