Parallel CRC optimisations on the x64 architecture: a per-partes method
Authors
Year
2024
Published
International Journal of Parallel, Emergent and Distributed Systems. 2024, 39(3), 292-316. ISSN 1744-5760.
Type
Article
Departments
Annotation
Each generation of CPU provides more resources and new features. These increase the ability to perform algorithms faster and with a higher degree of parallelism. The article discusses methods used to optimise CRC generation algorithms for long data blocks with consideration of the capabilities of contemporary systems. We analysed known software CRC algorithms and combined all known principles into a solution scalable in multiple CPU cores on single and multi-socket systems. Various algorithms were evaluated on contemporary multicore systems with 1 × 4, 1 × 64, 2 × 12, and 4 × 26 cores. The results show how the performance is affected by the architecture of the memory subsystem. Compared to the original sequential Sarwate algorithm, our algorithms are 48.0, 51.1, 38.0, and 28.8 times faster.
Evaluation of student skills in unix base scripting course.
Authors
Year
2019
Published
ICEBT 2019: Proceedings of the 2019 3rd International Conference on E-Education, E-Business and E-Technology. New York: Association for Computing Machinery, 2019. p. 23-27. ISBN 978-1-4503-7256-5.
Type
Proceedings paper
Departments
Annotation
As UNIX-like operating systems are widespread in computing environments, UNIX scripting course is an important part of the first semester of our IT study program. The aim of this course is to provide basic understanding and experience with Linux command line; students learn how to automate repeated tasks required for running various lab experiments. Hands-on lab assignments are prepared for review and evaluation of the student learning process. Two web evaluation services for scripting skills checking were investigated. This paper presents the challenges faced when implementing and fine-tuning the course. It discusses three student skills evaluation methods used in the course.
Nové rysy virtualizace na serverech HP Integrity.
Type
Article
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Co jsou to Business Critical Servery.
Type
Article
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Nové servery HP Integrity pro malé a střední podniky.
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Article
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Article
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Inovace procesorů a serverů HP Integrity.
Type
Article
Departments
sx2000 – nový čipset pro střední a velké servery HP Integrity.
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Article
Departments
Bezpečnost operačního systému OpenVMS a její vliv na dostupnost a kvalitu služeb.
Type
Article
Departments
HP OpenVMS na serverech Integrity a AlphaServer.
Type
Article
Departments
Nová řešení pro e-mailovou i hlasovou komunikaci a týmovou spolupráci na HP OpenVMS.
Type
Article
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Serverové virtualizační techniky v prostředích HP-UX a OpenVMS.
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Article
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Adaptive Enterprise v prostředí HP OpenVMS.
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Article
Departments
HP OpenVMS Clustery na procesorech Itanium.
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Article
Departments
Migrace OpenVMS aplikací mezi platformami VAX, Alpha a Itanium.
Type
Article
Departments