Spelling suggestions: "subject:"computational grids (eomputer systems)"" "subject:"computational grids (aomputer systems)""
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Modeling and analysis of securityUnknown Date (has links)
Cloud Computing is a new computing model consists of a large pool of hardware
and software resources on remote datacenters that are accessed through the Internet.
Cloud Computing faces significant obstacles to its acceptance, such as security,
virtualization, and lack of standardization. For Cloud standards, there is a long debate
about their role, and more demands for Cloud standards are put on the table. The Cloud
standardization landscape is so ambiguous. To model and analyze security standards for
Cloud Computing and web services, we have surveyed Cloud standards focusing more on
the standards for security, and we classified them by groups of interests. Cloud
Computing leverages a number of technologies such as: Web 2.0, virtualization, and
Service Oriented Architecture (SOA). SOA uses web services to facilitate the creation of
SOA systems by adopting different technologies despite their differences in formats and
protocols. Several committees such as W3C and OASIS are developing standards for web services; their standards are rather complex and verbose. We have expressed web services security standards as patterns to make it easy for designers and users to understand their key points. We have written two patterns for two web services standards; WS-Secure Conversation, and WS-Federation. This completed an earlier work we have done on web services standards. We showed relationships between web services security standards and used them to solve major Cloud security issues, such as, authorization and access control, trust, and identity management. Close to web services, we investigated Business Process Execution Language (BPEL), and we addressed security considerations in BPEL and how to enforce them. To see how Cloud vendors look at web services standards, we took Amazon Web Services (AWS) as a case-study. By reviewing AWS documentations, web services security standards are barely mentioned. We highlighted some areas where web services security standards could solve some AWS limitations, and improve AWS security process. Finally, we studied the security guidance of two major Cloud-developing organizations, CSA and NIST. Both missed the quality of attributes offered by web services security standards. We expanded their work and added benefits of adopting web services security standards in securing the Cloud. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2013.
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Dynamic superscalar grid for technical debt reductionKillian, Rudi January 2018 (has links)
Thesis (MTech (Information Technology))--Cape Peninsula University of Technology, 2018. / Organizations and the private individual, look to technology advancements to increase their ability to make informed decisions. The motivation for technology adoption by entities sprouting from an innate need for value generation. The technology currently heralded as the future platform to facilitate value addition, is popularly termed cloud computing. The move to cloud computing however, may conceivably increase the obsolescence cycle for currently retained Information Technology (IT) assets. The term obsolescence, applied as the inability to repurpose or scale an information system resource for needed functionality. The incapacity to reconfigure, grow or shrink an IT asset, be it hardware or software is a well-known narrative of technical debt. The notion of emergent technical debt realities is professed to be all but inevitable when informed by Moore’s Law, as technology must inexorably advance. Of more imminent concern however are that major accelerating factors of technical debt are deemed as non-holistic conceptualization and design conventions. Should management of IT assets fail to address technical debt continually, the technology platform would predictably require replacement. The unrealized value, functional and fiscal loss, together with the resultant e-waste generated by technical debt is meaningfully unattractive. Historically, the cloud milieu had evolved from the grid and clustering paradigms which allowed for information sourcing across multiple and often dispersed computing platforms. The parallel operations in distributed computing environments are inherently value adding, as enhanced effective use of resources and efficiency in data handling may be achieved. The predominant information processing solutions that implement parallel operations in distributed environments are abstracted constructs, styled as High Performance Computing (HPC) or High Throughput Computing (HTC). Regardless of the underlying distributed environment, the archetypes of HPC and HTC differ radically in standard implementation. The foremost contrasting factors of parallelism granularity, failover and locality in data handling have recently been the subject of greater academic discourse towards possible fusion of the two technologies. In this research paper, we uncover probable platforms of future technical debt and subsequently recommend redeployment alternatives. The suggested alternatives take the form of scalable grids, which should provide alignment with the contemporary nature of individual information processing needs. The potential of grids, as efficient and effective information sourcing solutions across geographically dispersed heterogeneous systems are envisioned to reduce or delay aspects of technical debt. As part of an experimental investigation to test plausibility of concepts, artefacts are designed to generically implement HPC and HTC. The design features exposed by the experimental artefacts, could provide insights towards amalgamation of HPC and HTC.
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Economic-based distributed resource management and scheduling for grid computingBuyya, Rajkumar, 1970- January 2002 (has links)
Abstract not available
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A grid-based middleware for processing distributed data streamsChen, Liang, January 2006 (has links)
Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references (p. 146-157).
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Extensible message layers for resource-rich cluster computersUlmer, Craig D. 12 1900 (has links)
No description available.
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Adjoint-based error estimation and grid adaptation for functional outputs from CFD simulationsBalasubramanian, Ravishankar, January 2005 (has links)
Thesis (Ph.D.) -- Mississippi State University. Computational Engineering. / Title from title screen. Includes bibliographical references.
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Optimizing XML-based grid services on multi-core processors using an emulation frameworkBhowmik, Rajdeep. January 2007 (has links)
Thesis (M.S.)--State University of New York at Binghamton, Department of Computer Science, Thomas J. Watson School of Engineering and Applied Science, 2007. / Includes bibliographical references.
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Parallelization of light scattering spectroscopy and its integration with computational grid environmentsPaladugula, Jithendar. January 2004 (has links)
Thesis (M.S.)--University of Florida, 2004. / Title from title page of source document. Document formatted into pages; contains 74 pages. Includes vita. Includes bibliographical references.
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Large scale feature extraction and trackingDhume, Pinakin. January 2007 (has links)
Thesis (M.S.)--Rutgers University, 2007. / "Graduate Program in Electrical and Computer Engineering." Includes bibliographical references (p. 114-115).
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Virtual organization based distributed environmental spatial decision support systems applications in watershed management /Yi, Shi. January 2008 (has links)
Thesis (PH.D.)--Michigan State University. Geography, 2008. / Title from PDF t.p. (viewed on Aug. 11, 2009) Includes bibliographical references (p. 193-218). Also issued in print.
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