Browsing by Subject "volunteer computing"

Now showing 1 - 5 of 5

Access status: Open Access ,
ComcuteJS - a Web browser based platform for large-scale computations
(Wydawnictwa AGH, 2013) Dębski, Roman; Krupa, Tomasz; Majewski, Przemysław
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).
Access status: Open Access ,
Efficient implementation of branch-and-bound method on desktop grids
(Wydawnictwa AGH, 2014) Tian, Bo Ye; Posypkin, Mihail Anatol'evič
The Berkeley Open Infrastructure for Network Computing (BOINC) is an open-source middleware system for volunteer and desktop grid computing. In this paper, we propose BNBTEST, a BOINC version of the distributed branch-and-bound method. The crucial issues of the distributed branch-and-bound method are traversing the search tree and loading the balance. We developed a subtask packaging method and three different subtask distribution strategies to solve these.
Access status: Open Access ,
Using BOINC desktop grid to solve large scale SAT problems
(Wydawnictwa AGH, 2012) Posypkin, Mihail Anatol'evič; Semënov, Aleksandr Anatol'evič; Zaikin, Oleg
Many practically important combinatorial problems can be efficiently reduced to a problem of Boolean satisfiability (SAT). Therefore, the implementation of distributed algorithms for solving SAT problems is of great importance. In this article we describe a technology for organizing desktop grid, which is meant for solving SAT problems. This technology was implemented in the form of a volunteer computing project SAT@home based on a popular BOINC platform.
Access status: Open Access ,
Volunteer computing simulation using RePast and MASON
(Wydawnictwa AGH, 2013) Byrski, Aleksander; Feluś, Michał; Gawlik, Jakub; Jasica, Rafał; Kobak, Paweł; Jankowski, Grzegorz; Nawarecki, Edward; Wroczyński, Michał; Majewski, Przemysław; Krupa, Tomasz; Strychalski, Jacek
Volunteer environments usually consist of a large number of computing nodes, with highly dynamic characteristics, therefore reliable models for a planning of the whole computing are highly desired. An easy to implement approach to modelling and simulation of such environments May employ agent-based universal simulation frameworks, such as RePast or MASON. In the course of the paper the above-mentioned simulation frame Works are adapter to suport simulation of volunteer computing. After giving implementation details, selected results concerning computing time and speedup are given and are compared with the ones obtained from an actual volunteer environment.
Access status: Open Access ,
Web pages content analysis using browser-based volunteer computing
(Wydawnictwa AGH, 2013) Turek, Wojciech; Nawarecki, Edward; Dobrowolski, Grzegorz; Krupa, Tomasz; Majewski, Przemysław
Existing solutions to the problem of finding valuable information on the Web suffers from several limitations like simplified query languages, out-of-date in- formation or arbitrary results sorting. In this paper a different approach to this problem is described. It is based on the idea of distributed processing of Web pages content. To provide sufficient performance, the idea of browser-based volunteer computing is utilized, which requires the implementation of text processing algorithms in JavaScript. In this paper the architecture of Web pages content analysis system is presented, details concerning the implementation of the system and the text processing algorithms are described and test results are provided.