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Scheduler and memory allocator for the Bobox system
Falt, Zbyněk
The content of this work is the description of the Bobox system, which is system for parallel data processing developed by the Department of Software Engineering of the Charles University, the analysis of its original scheduler and the design of a new, more efficient task scheduler and memory allocator of the system. The work also contains an experimental comparison of different aproaches to the problematic.
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Optimization of Run Configurations of k-Wave Jobs
Sasák, Tomáš ; Jaroš, Marta (referee) ; Jaroš, Jiří (advisor)
This thesis focuses on scheduling, i.e. correct approximation of configurations used to run k-Wave simulations on supercomputers from the IT4Innovations infrastructure. Especially, for clusters Salomon and Anselm. A single work is composed of a set which contains many simulations. Every simulation is executed by some code from the k-Wave toolbox. To calculate the simulation, it is necesarry to select a suitable configuration, which means the amount of supercomputer resources (number of nodes, i.e. cores), and the duration of the rental. Creation of an ideal configuration is complicated and is even harder for an inexperienced user. The approximation is made based on the empiric data, obtained from multiple executions of different sets of simulations on given clusters. This data is stored and used by a set of approximators, which performs the actual approximation by methods of interpolation and regression. The text describes the implementation of the final scheduler. By experimenting, the most efficient methods for this problem has found out to be Akima spline, PCHIP interpolation and cubic spline. The main contribution of this work is creation of a tool which can find suitable configuration for k-Wave simulation without knowing the code or having lots of experience with its usage.
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Test Planning Tool Extension for Distributed Systems
Mészáros, Filip ; Ráb, Jaroslav (referee) ; Ščuglík, František (advisor)
This bachelor thesis is about automatical software testing using the testing scheduler. It describes creation of the extension for the existing testing scheduler, so it will be possible to split effectively a group of tests to segments, that will be executed independently on each other. Tests are splitted according to the common characteristics of the enviroment, that need to be prepared for each test, and according to the dependencies between the tests. Furthermore, it describes what optimizations are used for splitting of the tests to subsets. Each subset of the tests runs on a standalone testing system, so the time needed for succesful completion of testing with the given set of tests is reduced. Created tool is succesfully used during everyday testing of the several products in the Acision company, to which was this tool made.
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Development of mobile application for organizing time for iOS and its publishing on the App Store
SCHUH, Tom
The aim of this bachelor work is to create a sheduler application for IOS mobile phones, using the Xamarin development platform and publishing the aplication in the App Store. Users can plan activities, meetings, and other tasks, for all of this task he can set a notification, a category or write a short description of the activity. The theoretical part of the bachelor thesis presents the development platform Xamarin, the tools used for the aplication development and the description of a creation an IOS application by using the Xamarin development platform in Windows operating systems. The practical part describes the development of a mobile applications from the creation of the user interface, the programming of the application logic to a connection with an Apple calendar.
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Scheduler and memory allocator for the Bobox system
Falt, Zbyněk
The content of this work is the description of the Bobox system, which is system for parallel data processing developed by the Department of Software Engineering of the Charles University, the analysis of its original scheduler and the design of a new, more efficient task scheduler and memory allocator of the system. The work also contains an experimental comparison of different aproaches to the problematic.
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Implementation of Personal Scheduler
Filák, Jakub ; Květoňová, Šárka (referee) ; Lukáš, Roman (advisor)
The goal of this bachelor´s thesis is to explore the possibilities of the time scheduling and to create a tool for its simplification. Besides managing personal tasks and events, the tool can also be used for planning appointments with other users, mainly due to a user diaries sharing and a searching tool for appropriate dates. The first part of the thesis deals with the technologies employed, followed with a part concerning the requirements for the time scheduling tool and a description of an implementation of the tool. In the last part the programme capabilities are evaluated, along with the results of the work.
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Design and Implementation of Real-Time Operating System Kernels Running on HC08
Bednář, Jan ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
The project is aimed at testing the kernels of real-time OS within the HC08 platform. The RM, EDF and polled loop mechanisms are being compared as well as freely available FreeRSTOS and QP systems. The project also incorporates descriptions of techniques used in the development, obtaining and the implementation of test environments. The evaluation is based on the tests made within the HC08 platform and the knowledge gained from the programming for every individual type of real-time OS.
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QoS simulation model in NS2
Balej, Jiří ; Burda, Karel (referee) ; Šimek, Milan (advisor)
In this bachelor thesis is described fundamental principle of IPTV and all the necessary conditions for high-quality video and audio signal. In reference is the recommendation of DSL Forum TR-126, where are summarized QoS parameters for IPTV. There is the explanation of Triple play service as a combined distribution of television, telephone and high-speed Internet. In one chapter are presented methods for asssure Quality of Service (QoS). There are described the method of Integrated services and especially Differentiated services. It explains a function of edge and core routers in Differentiated services. Methods for random early detection (RED) a scheduling are described too. The aim of this thesis was to create two laboratory tasks in the Network Simulator 2. The first lab simulates VoIP traffic in data network and assure QoS for VoIP. In the second lab is a simulated the network with Triple play service and the goal is to assure the recommended parameters for IPTV. To resolve the aim of this work, was needed to study the function of Network Simulator 2 and focus on settings for Differentiated services.
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