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    Wyświetlanie 1-3 z 3
    Tytuł:
    Software for calculation of noise maps implemented on supercomputer
    Autorzy:
    Czyżewski, A.
    Szczodrak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1943198.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Gdańska
    Tematy:
    noise map
    supercomputer
    road noise
    Opis:
    Investigation results relevant to the implementation of algorithms for calculation of noise maps are presented in this paper. The aim of implementing the algorithms on a computer cluster is explained. Selected implementation details of the software called Noise Propagation Model are described. The software interaction with the data acquisition system is presented. Noise maps obtained using the described software are presented. A comparison between the outcomes of the implemented models and the simulation results of a commercial program is presented. An analysis of the computation efficiency is described. A discussion concerning dynamic presentation of noise maps is also presented.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2009, 13, 4; 363-377
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Torus-connected cycles: A simple and scalable topology for interconnection networks
    Autorzy:
    Bossard, A.
    Kaneko, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/330544.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    algorithm
    routing
    Hamiltonian method
    supercomputer
    parallel
    algorytm
    metoda Hamiltonowska
    superkomputer
    system równoległy
    Opis:
    Supercomputers are today made up of hundreds of thousands of nodes. The interconnection network is responsible for connecting all these nodes to each other. Different interconnection networks have been proposed; high performance topologies have been introduced as a replacement for the conventional topologies of recent decades. A high order, a low degree and a small diameter are the usual properties aimed for by such topologies. However, this is not sufficient to lead to actual hardware implementations. Network scalability and topology simplicity are two critical parameters, and they are two of the reasons why modern supercomputers are often based on torus interconnection networks (e.g., Fujitsu K, IBM Sequoia). In this paper we first describe a new topology, torus-connected cycles (TCCs), realizing a combination of a torus and a ring, thus retaining interesting properties of torus networks in addition to those of hierarchical interconnection networks (HINs). Then, we formally establish the diameter of a TCC, and deduce a point-to-point routing algorithm. Next, we propose routing algorithms solving the Hamiltonian cycle problem, and, in a two dimensional TCC, the Hamiltonian path one. Correctness and complexities are formally proved. The proposed algorithms are time-optimal.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2015, 25, 4; 723-735
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tryton supercomputer capabilities for analysis of massive data streams
    Autorzy:
    Krawczyk, H.
    Nykiel, M.
    Proficz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/259474.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    supercomputer
    data streams
    distributed systems
    radio-telescope
    satellite
    Opis:
    The recently deployed supercomputer Tryton, located in the Academic Computer Center of Gdansk University of Technology, provides great means for massive parallel processing. Moreover, the status of the Center as one of the main network nodes in the PIONIER network enables the fast and reliable transfer of data produced by miscellaneous devices scattered in the area of the whole country. The typical examples of such data are streams containing radio-telescope and satellite observations. Their analysis, especially with real-time constraints, can be challenging and requires the usage of dedicated software components. We propose a solution for such parallel analysis using the supercomputer, supervised by the KASKADA platform, which with the conjunction with immerse 3D visualization techniques can be used to solve problems such as pulsar detection and chronometric or oil-spill simulation on the sea surface.
    Źródło:
    Polish Maritime Research; 2015, 3; 99-104
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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