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 33 for “"Hardware performance"”.
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Operating System Management of Shared Caches on Multicore Processors
… processors for the purposes of achieving performance gains. Consequently, this dissertation demonstrates how the operating system can profitably manage these shared caches. Two shared-cache management principles are investigated: (1) promoting shared use of the shared cache, demonstrated …
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Dynamic Feedback-Driven Thread Migration for Energy-Efficient Execution of Multithreaded Workloads
… system scheduler focuses on temporal aspects of performance such as execution time and latency, disregarding other factors that may have significant impact on the system. For example, judicious thread migration decisions can provide significant power savings. Typical schedulers, however, fail to …
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Optimizing Neural Networks for Embedded Edge-Processing Platforms.
… accelerators, therefore the prediction of the hardware performance of the candidate design points requires a certain degree of platform awareness. Finally, the recent advancements in the neural network domain have uncovered emerging models and intelligence mechanisms, whose success has …
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High Level Synthesis and Evaluation of the Secure Hash Standard for FPGAs
… components of cryptographic applications. SHA performance on central processing units (CPUs) is slow, therefore, acceleration must be done using hardware such as Field Programmable Gate Arrays (FPGAs). Considerable work has been done in academia using FPGAs to accelerate SHAs. These designs …
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OPTIMIZATION FOR CALIBRATION OF WATER RESOURCES SYSTEMS INCLUDING NEW PARALLEL GLOBAL ALGORITHMS AND APPLICATIONS TO HYDRODYNAMICS AND WATER QUALITY LAKE PDE MODELS
… dimensional decision vector. GOPS shows superior performance than prior methods on benchmark problems and an expensive water quality model calibration problem with 21 decision variables. The impact of memory hardware performance on calibration efficiency is also investigated. The calibration’s …
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Hercules attitude processor (HAP)
… worst-case timing design criterion was a prime hardware design consideration. Weight, volume, and power requirements were also addressed. Redundancy was included for critical time maintenance functions. Hardware performance and accuracy was calculated and measured. Operational software was …
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Load-balanced rendering on a general-purpose tiled architecture
Commodity graphics hardware has become increasingly programmable over the last few years, but has been limited to a fixed resource allocation. These architectures handle some workloads well, others poorly; load-balancing to maximize graphics hardware performance has become a critical issue. I have …
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Matrix multiplication with Asynchronous Logic Automata
… ALA is both a model for computation and a hardware architecture. The program is a picture which specifies what operation each cell does, and which neighbors it communicates with. This program-picture is also a hardware design - there is a one-to-one mapping of logical cells to hardware …
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Does the Halting Necessary for Hardware Trace Collection Inordinately Perturb the Results?
… results, but are difficult to collect with hardware monitors because microprocessors access memory too frequently for disks or other large storage to keep up. The small, fast buffers of the monitors fill quickly; in order to obtain long contiguous traces, the processor must be stopped while …
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Design of biomimetic compliant devices for locomotion in liquid environments
… challenges. The main challenges are related to hardware performance in terms of propulsion efficiency, mechanical robustness, maneuverability, adaptability, stealth and autonomy. Current traditional approaches that use propeller driven devices have limited success in addressing these challenges. …
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Weld : fast data-parallel computation on modern hardware
Modern hardware is difficult to use efficiently, requiring complex optimizations like vectorization, loop blocking and load balancing to get good performance. As a result, many widely used data processing systems fall well short of peak hardware performance. We have developed Weld, an intermediate …
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Path Planning for a UAV in an Agricultural Environment to Tour and Cover Multiple Neighborhoods
… to perform the same. Empirical results comparing performances of both approaches are included. Hardware experiments are performed on a spraying hexacopter, using the TSP - Greedy approach. Unique system characteristics are studied to make conclusions about stability of the platform. Future …
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Adaptive thermal modeling architecture for small satellite applications
… design and operation because of its affect on hardware performance and survivability. The Adaptive Thermal Modeling Architecture (ATMA) discussed in this thesis is meant to bridge the gap between the commercially available thermal modeling tools used for larger, more expensive satellites, and …
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Design and implementation of small satellite inspection
… Satellites, known as SPHERES. Evaluation of hardware performance was done using data from the International Space Station, in concert with ground-based simulations. Ultimately, this work is in preparation for future experimentation using the VERTIGO vision-navigation payload for SPHERES. The …
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Advanced image reconstruction in parallel magnetic resonance imaging : constraints and solutions.
… The speed of conventional MRI is limited by hardware performance and physiological safety measures. "Parallel" MRI is a new technique that circumvents these limitations by utilizing arrays of radiofrequency detector coils to acquire data in parallel, thereby enabling still higher imaging …
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Dynamic tailoring and tuning for space-based precision optical structures
… imaging techniques to achieve high optical performance with limited launch mass. Structurally-connected Michelson interferometers meet these demands, but pose specific challenges in the areas of system dynamics and controls, uncertainty management and testing. The telescope optics must meet …
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Unlocking Organizational Potential for GIS Collaboration in Higher Education
<p>Hardware, performance, and complex interface issues are just a few barriers that Geographic Information Systems (GIS) instructors must overcome when collaborative efforts extend beyond their classrooms. As GIS technologies evolve, instructors must adapt quickly to new tools and methods to …
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Simulation of distributed computer networks
This is a study of the simulated performance of two local area networks, Ethernet and the MAP network, respectively based on the IEEE standards 802.3 and 802.4. The simulation language chosen is of the discrete event type rather than the more usual analytical model. This is done in order to observe …
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PCBleed: Fuzzing for CPU Bugs Through Use of Performance Counters
In recent years, the increasing complexity of hardware designs has given rise to a growing array of vulnerabilities and security threats, as exemplified by instances such as Spectre, Microarchitectural Data Sampling, and Zenbleed. The inherent permanence of hardware vulnerabilities poses a …
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Measuring and predicting radiation-induced soft errors in microprocessors
… analysis. However, the commercial off-the-shelf hardware appearing in space requires an operating system – often Linux. This research incorporated testing with Linux and benchmarks modified to provide additional visibility into Linux detected errors. From the measurements collected for …
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