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.
Results
Showing 1 to 20 of 113 for “"Restart"”.
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Keeping checkpoint/restart viable for exascale systems
… to ensure progress across faults like checkpoint/restart, the dominant fault tolerance mechanism for the last 25 years, are increasingly problematic at the scales of future systems due to their excessive overheads. In this work, we evaluate a number of techniques to decrease the overhead of …
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Reducing exception management overhead with software restart markers
… critical. In this thesis, I present software restart markers as the foundation of an exception handling mechanism for explicitly parallel architectures. With this model, the compiler is responsible for delimiting regions of idempotent code. If an exception occurs, the operating system will …
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Computational Analysis of Transient Unstart/Restart Characteristics in a Variable Geometry, High-Speed Inlet
… used to predict and investigate the unstart and restart processes of the inlet as well as the associated hysteresis. Good agreement in the quasi-steady limit with a traditional analysis approach was obtained. However, the new model allows for more detailed, time-accurate information regarding the …
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Characterization of two Bacillus subtilis proteins required for the initiation, restart, and control of DNA replication
… may result from a defect in replication restart at damaged or stalled replication forks. Thus, whereas dnaBS3 71P suppresses the defects of mutant cells that cannot initiate or restart replication, expressing DnaBS371P in wild-type cells causes defects in initiation and restart.
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Restart the ‘World’ with Revolutionary Ruptures: Imagining Identity through War & in Crisis – Apocalyptic Rhetoric & the American Civil Religion
The response to 9/11 involved appealing to apocalyptic rhetoric to capitalize on the affective chaos following the tragedy to discursively mobilize actors while engaging in historical (re)imagining of the state. This thesis uses Benedict Anderson's concept of Imagined Communities as it concerns …
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Performance of Concurrency Control Methods in Distributed Database Management Systems (Timestamp Ordering, Two-Phase Locking, Optimistic Scheme, Restart, Transaction Blocking)
The effects of transaction restart overhead on the performance of concurrency control methods (CCMs) have been studied using the simulation approach. In order to do this, detailed simulation models for a representative sample of concurrency control mechanisms, namely Basic Timestamp Ordering (BTO), …
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Social and Clinical attributes of patients who restart Antiretroviral Therapy at 5 ART Centers in Central and Copperbelt Provinces of Zambia
… therapy (ART) differ. Some patients default and restart ART. Family Health International (FHI360) in collaboration with Ministry of Health, has been supporting implementation of a program on HIV prevention, care and treatment (ART) services in Zambia and has been collecting routine data on …
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Social and Clinical attributes of patients who restart Antiretroviral Therapy at 5 ART Centers in Central and Copperbelt Provinces of Zambia
… therapy (ART) differ. Some patients default and restart ART. Family Health International (FHI360) in collaboration with Ministry of Health, has been supporting implementation of a program on HIV prevention, care and treatment (ART) services in Zambia and has been collecting routine data on …
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Advanced I/O Techniques for Efficient and Highly Available Process Crash Recovery Protocols
… created a system-level fault-tolerant checkpoint/restart implementation for Linux Clusters. This allows processes to restart computations at the last known checkpoint in the event the system crashes. The checkpoint data creation is highly dependent on system input and output operations. This paper …
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DDI1/2 and RTF2-Dependent Regulation of RNASE H2 at the Replisome Ensures Genome Stability
… DNA, inefficient replication fork restart, genome instability, and cell death. During unperturbed replication, RTF2 travels with the replication fork (Kottemann et al., 2018). Here we examine the function of RTF2 and address why RTF2's removal from the replisome is necessary for …
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A Probabilistic Study of 3-SATISFIABILITY
… local search algorithms, tabu search and random restart local search, on MAX 3-SATISFIABILITY. Computational results with tabu search and random restart local search on randomly generated instances of 3-SATISFIABILITY are reported. These results suggest that, given a limited computing budget, …
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A Personal Virtual Computer Recorder
… We introduce a coordinated, parallel checkpoint-restart mechanism for distributed applications that minimizes synchronization overhead and uniquely supports complete checkpoint and restart of network state in a transport protocol independent manner, for both reliable and unreliable protocols. We …
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A new block Krylov subspace framework with applications to functions of matrices acting on multiple vectors
… of the framework, we develop an efficient restart procedure and error bounds for the shifted block full orthogonalization method (Sh-BFOM(m)). Regarding BFOM as the prototypical block Krylov subspace method, we propose another formalism, which we call modified BFOM, and show that block …
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A Critical Exploration of Social Transformation Through Occupation
… communities. The research culminated in the ‘ReSTART’ conceptual platform, outlining key processes in effective social transformation through arts-based occupations. Conclusion: Achieving social transformation through arts-based interventions is complex and demands advanced skills from …
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A semi-blocking checkpoint protocol to minimize checkpoint overhead
… than the traditional NFS- based checkpoint/restart. However, as the core counts on each node keep increasing, the large checkpoint size of a node will quickly saturate the limited network bandwidth. In this thesis, we introduce the semi-blocking checkpoint/restart protocol to hide the …
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Development of self-adaptive back propagation and derivative free training algorithms in artificial neural networks
… back propagation, multi-directional and restart ANN training algorithms. The descent direction in self-adaptive back propagation training is determined implicitly by a central difference approximation scheme, which chooses its step size according to the convergence behavior of the error …
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Exposing datapath elements to reduce microprocessor energy consumption
… by doing this. We present the idea of software restart markers to handle the exception management overhead that results from exposing additional processor state. We then implement our proposed techniques and observe an average energy savings of 7.0% across a range of benchmarks when compared to …
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Feasibility Assessment of Adopting the ADDER Computer Code for the MIT Research Reactor Fuel Management
… was also evaluated. Calculations with mid-cycle restart were performed, in which reactor power was reduced to 100 kW for 7 hours to evaluate Xe-135 poison reactivity effects. The parameters selected for comparison include control blades height, cumulative fission density, integral neutron flux …
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VERDICTS: Visual Exploratory Requirements Discovery and Injection for Comprehension and Testing of Software
… quick-feedback cycle, without recompilation or restart of the system under test. This supports discovery and verification of software dynamic behavior, software comprehension, testing, and locating the defect origin. At its core, VERDICTS allows dynamic evolution and testing of hypotheses about …
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On Optimizing and Leveraging Distributed Shared Memory for High Performance, Resource Aggregation, and Cache-coherent Heterogeneous-ISA Processors
… dissertation presents a distributed checkpoint/restart mechanism that allows a distributed VM to tolerate failures. A user interface is introduced for sending/receiving checkpoint/restart commands to a distributed VM. We implement the checkpoint/restart technique in the native KVM tool, and …
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