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Design of reliable VLAN-based enterprise data nework
Vrablic, Pavol ; Krkoš, Radko (referee) ; Novotný, Vít (advisor)
The main aim of this work is to identify the potential issues within a robust network to provide a highly reliable and fault free service – with a smooth and reliable functionality of critical services. This work contains new methods of branch networking and virtualization that is increasingly used in enterprise networks. It is important to note that computer clustering provides the functionality of critical services that can surpass potential partial failures and network QoS; which overall, achieves a high quality and reliable service.
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CDN and clustering in GNU/Linux with performance testing
Mikulka, Pavel ; Pelka, Tomáš (referee) ; Šimek, Milan (advisor)
Fault tolerance is essential in a production-grade service delivery network. One of the solution is build a clustered environment to keep system failure to a minimum. This thesis examines the use of high availability and load balancing services using open source tools in GNU/Linux. The thesis discusses some general technologies of high availability computing as virtualization, synchronization and mirroring. To build relatively cheap high availability clusters is suitable DRDB tool. DRDB is tool for build synchronized Linux block devices. This paper also examines Linux-HA project, Redhat Cluster Suite, LVS, etc. Content Delivery Networks (CDN) replicate content over several mirrored web servers strategically placed at various locations in order to deal with the flash crowds. A CDN has some combination a request-routing and replication mechanism. Thus CDNs offer fast and reliable applications and services by distributing content to cache servers located close to end-users. This work examines open-source CDNs Globule and CoralCDN and test performance of this CDNs in global deployment.
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Success Rate Measure Methods in Data Mining
Trunkát, Jan ; Zelený, Jan (referee) ; Bartík, Vladimír (advisor)
The Bachelor thesis is aimed at success rate measure methods in data mining in the area of clustering. It introduces the basic concepts, features of data mining and especially the cluster analysis. This work includes program, which implements methods of measuring success. In conclusion, they are given results of clustering success.
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Using Infinispan as a Backend for CDI Contexts
Kövári, Adam ; Očenášek, Pavel (referee) ; Rychlý, Marek (advisor)
Tato práce vede čtenáře od vývoje kontextově závislé injekce v Java EE, ukazuje základní přehled o JSR 299, které se vyvinulo do rámce této specifikace a analyzuje referenční implementace Weld. V pozdějších částech je vytvořeno CDI rozšíření, které vytváří cluster-wide scope pomocí Infinispanu jako skladem dat, kterého základní vlastnosti jsou také prozkoumána.
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Proposal for Optimization of Servers Using Virtualization and Consolidation
Havelka, Ondřej ; Sedlák, Petr (referee) ; Ondrák, Viktor (advisor)
The purpose of master's thesis is preparing the proposal for optimization of servers using virtualization and consolidation. The master's thesis is divided into three parts. The first one is engaged theoretical ground of computer network, second part analyses the current state of IT infrastructure within the specific business. The last part contains the proposal to modernization and optimization of existing server solution including summary of expected costs for realization od proposal.
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Design of Virtualization and Consolidation of Servers
Kočíbová, Iveta ; Satola, Richard (referee) ; Ondrák, Viktor (advisor)
This Bachelor Thesis focuses on the application of virtualization in environment branch of the international company. It analyzes the IT infrastructure in the organization and trying to find the best possible solution for upgrading existing infrastructure. Thesis also analyses an overview of available virtualization technologies and compares them. The main part of Thesis is aimed at implementation of the most appropriate solution and evaluating the benefits of solution for the company. Finally, it outlines possible development in the future.
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Analysis of cryptographic operations on various processor architectures
Kubík, Hynek ; Gerlich, Tomáš (referee) ; Lieskovan, Tomáš (advisor)
Bachelor’s thesis analyzes cryptographic operations and algorithms on different server processor architectures. The thesis in its theoretical part deals with the analysis of individual cryptographic algorithms, processor architecture, computing cluster and HPC. An application is made for the analysis, which, depending on the input parameters, selected architectures and configuration selected by the user, performs the measurement of the performance of individual operations.The results from performance measurements and various cryptographic operations and architectures and with various input application parameters are subsequently years in the form of graphs.
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Computational tasks for solving parallel data processing
Rexa, Denis ; Uher, Václav (referee) ; Mašek, Jan (advisor)
The goal of this diploma thesis was to create four laboratory exercises for the subject "Parallel Data Processing", where students will try on the options and capabilities of Apache Spark as a parallel computing platform. The work also includes basic setup and use of Apache Kafka technology and NoSQL Apache Cassandra database. The other two lab assignments focus on working with a Travelling Salesman Problem. The first lab was designed to demonstrate the difficulty of a task where the student will face an exponential increase in complexity. The second task consists of an optimization algorithm to solve the problem in cluster. This algorithm is subjected to performance measurements in clusters. The conclusion of the thesis contains recommendations for optimization as well as comparison of running with different number of computing devices.
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Installation and configuration of Octave computation cluster
Mikulka, Zdeněk ; Hasmanda, Martin (referee) ; Sysel, Petr (advisor)
This diploma thesis contains detailed design of high-performance cluster, primarely focused for parallel computing in Octave application. Each of component of this cluster is described along with instructions for installation and configuration. Cluster is based on GNU/Linux operating system and Message Parsing Interface. Design alllows implementation of this cluster in computers of schoolroom with active lessons.
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Development and Programming of Low Power Cluster
Hradecký, Michal ; Nikl, Vojtěch (referee) ; Jaroš, Jiří (advisor)
This thesis deals with the building and programming of a low power cluster composed of Hardkernel Odroid XU4 kits based on ARM Cortex A15 and Cortex A7 chips. The goal was to design a simple cluster composed of multiple kits and run a set of benchmarks to analyze performance and power consumption. The test set consisted of HPL and Stream benchmarks and various tests for the MPI interface. The overall performance of the cluster composed of four kits in HPL benchmark was measured 23~GFLOP/s in double-precision. During this test, the cluster showed power efficiency about 0.58~GFLOP/W. The work also describes the installation of PBS Torque scheduler and HPC software build and installation framework EasyBuild on 32-bit ARM platform. The comparison with Anselm supercomputer showed that Odroid cluster is as effiecient as large supercomputer but with slightly higher price.
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