Temat: large-scale computations - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comcutejs:a Web browser based platform for large-scale computations
Autorzy:: Dębski, R.
Krupa, T.
Majewski, P
Powiązania:: https://bibliotekanauki.pl/articles/305741.pdf
Data publikacji:: 2013
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: volunteer computing
parallel computations
large-scale computations
augmented cloud computing
Opis:: The paper presents a new, cost effective,volunteer computing based platform. It utilizes volunteers’web browsers as computational nodes. The computational tasks are delegated to the browsers and executed in the background (independently of any user interface scripts) making use of the HTML5 web workers technology. The capabilities of the platform hale been proved by experiments performer in a wide range of numbers of computational nodes (1–400).
Źródło:: Computer Science; 2013, 14 (1); 143-152
1508-2806
2300-7036
Pojawia się w:: Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of a Java-Based Framework to Parallel Simulation of Large-Scale Systems
Autorzy:: Niewiadomska-Szynkiewicz, E.
Żmuda, M.
Malinowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/908095.pdf
Data publikacji:: 2003
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: informatyka
parallel computations
simulation
large-scale systems
computer systems
computer-aided system design
Opis:: Large-scale systems, such as computer and telecommunication networks, complex control systems and many others, operate in inherently parallel environments. It follows that there are many opportunities to admit parallelism into both the algorithm of control implementation and simulation of the system operation considered. The paper addresses issues associated with the application of parallel discrete event simulation (PDES). We discuss the PDES terminology and methodology. Particular attention is paid to the software environment CSA&S/PV (Complex Systems Analysis & Simulation-Parallel Version), which provides a framework for simulation experiments performed on parallel computers. CSA&S/PV was applied to investigate several real-life problems. The case studies are presented for both computer and water networks.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2003, 13, 4; 537-547
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Object library of algorithms for dynamic optimization problems; Benchmarking SQP and nonlinear interior point methods
Autorzy:: Błaszczyk, J.
Karbowski, A.
Malinowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/929795.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: optymalizacja dynamiczna
programowanie kwadratowe sekwencyjne
różniczkowanie automatyczne
obliczenia numeryczne
analiza danych
dynamic optimization
large-scale optimization
sequential quadratic programming
nonlinear interior-point methods
object-oriented numerical computations
automatic differentiation
performance data analysis
Opis:: The main purpose of this paper is to describe the design, implementation and possibilities of our object-oriented library of algorithms for dynamic optimization problems. We briefly present library classes for the formulation and manipulation of dynamic optimization problems, and give a general survey of solver classes for unconstrained and constrained optimization. We also demonstrate methods of derivative evaluation that we used, in particular automatic differentiation. Further, we briefly formulate and characterize the class of problems solved by our optimization classes. The solution of dynamic optimization problems with general constraints is performed by transformation into structured large-scale nonlinear programming problems and applying methods for nonlinear optimization. Two main algorithms of solvers for constrained dynamic optimization are presented in detail: the sequential quadratic programming (SQP) exploring the multistage structure of the dynamic optimization problem during the solution of a sequence of quadratic subproblems, and the nonlinear interior-point method implemented in a general-purpose large-scale optimizer IPOPT. At the end, we include a typical numerical example of the application of the constrained solvers to a large-scale discrete-time optimal control problem and we use the performance profiles methodology to compare the efficiency and robustness of different solvers or different options of the same solver. In conclusions, we summarize our experience gathered during the library development.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2007, 17, 4; 515-537
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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