Browsing by Subject "GPU computing"

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Access status: Open Access ,
Heterogeneous GPU&CPU cluster for High Performance Computing in cryptography
(Wydawnictwa AGH, 2012) Marks, Michał; Jantura, Jarosław; Niewiadomska-Szynkiewicz, Ewa; Strzelczyk, Przemysław; Góźdź, Krzysztof
This paper addresses issues associated with distributed computing systems and the application of mixed GPU&CPU technology to data encryption and decryption algorithms. We describe a heterogenous cluster HGCC formed by two types of nodes: Intel processor with NVIDIA graphics processing unit and AMD processor with AMD graphics processing unit (formerly ATI), and a novel software framework that hides the heterogeneity of our cluster and provides tools for solving complex scientific and engineering problems. Finally, we present the results of numerical experiments. The considered case study is concerned with parallel implementations of selected cryptanalysis algorithms. The main goal of the paper is to show the wide applicability of the GPU&CPU technology to large scale computation and data processing.
Access status: Open Access ,
Very fast non-dominated sorting
(2014) Smutnicki, Czesław; Rudy, Jarosław; Żelazny, Dominik
A new and very efficient parallel algorithm for the Fast Non-dominated Sorting of Pareto fronts is proposed. By decreasing its computational complexity, the application of the proposed method allows us to increase the speedup of the best up to now Fast and Elitist Multi-Objective Genetic Algorithm (NSGA-II) more than two orders of magnitude. Formal proofs of time complexities of basic as well as improved versions of the procedure are presented. The provided experimental results fully confirm theoretical findings.