Wyniki wyszukiwania dla: parallel and dispersed systems

• Interfacial Properties of Phosphatidylcholine-based Dispersed Systems

  Publikacja

  • A. Wiącek
  • E. Adryańczyk

  - INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Rok 2015

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• Decentralized control of a UPS systems operating in parallel

  Publikacja

  • R. Strzelecki
  • D. Vinnikov

  - Rok 2008

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• Parallel Programming for Modern High Performance Computing Systems

  Publikacja

  • P. Czarnul

  - Rok 2018

  In view of the growing presence and popularity of multicore and manycore processors, accelerators, and coprocessors, as well as clusters using such computing devices, the development of efficient parallel applications has become a key challenge to be able to exploit the performance of such systems. This book covers the scope of parallel programming for modern high performance computing systems. It first discusses selected and...

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• Decentralized control of a different rated parallel UPS systems

  Publikacja

  • R. Strzelecki
  • D. Wojciechowski

  - Rok 2007

  The paper presents the single phase uninterruptible power supply (UPS) system with galvanic separated DC-AC-DC-AC converters operating in parallel. The CAN physical layer based system of communication between converters has been developed and applied, which allow to utilize a decentralized master-slave control providing high availability factor of the whole UPS system. The control system of particular converters has been developed...

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• Simulation of Parallel Applications on Large-scale Distributed Systems

  Publikacja

  • P. Rościszewski
  • P. Sidorczak

  - Rok 2014

  This chapter has a form of a review article in the field of simulating High-Performance Computing systems. We justify the need for a new versatile simulator considering heterogeneity, energy efficiency and reliability of HPC systems. We sketch the problems that need to be solved by such simulator and rationalize using discrete-event simulation for this purpose. Based on a review of existing discrete-event HPC simulation solutions...

• Highly parallel distributed computing systems with optical interconnections

  Publikacja

  • J. Just
  • R. Romaniuk
  • R. S. Romaniuk

  - Microprocessing and Microprogramming - Rok 1989

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• Operational Analysis of Fire Alarm Systems with a Focused, Dispersed and Mixed Structure in Critical Infrastructure Buildings

  Publikacja

  • K. Jakubowski
  • J. Paś
  • S. Duer
  • J. Bugaj

  - ENERGIES - Rok 2021

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• Block-based Representation of Application Execution on Modern Parallel Systems

  Publikacja

  • P. Czarnul

  - Rok 2013

  The chapter presents how to model execution of a parallel computational application that is to be executed in a large-scale parallel or distributed environment with potentially thousands to millions of execution units. The representation uses pre- viously attributes and factors representative of modern high performance systems including multicore CPUs, GPUs, dedicated accelerators such as Intel Phi.

• International Journal of Parallel and Distributed Systems

  Czasopisma

  ISSN: 2277-1638

• IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS

  Czasopisma

  ISSN: 1045-9219 , eISSN: 1558-2183

• MERPSYS: An environment for simulation of parallel application execution on large scale HPC systems

  Publikacja

  • P. Czarnul
  • J. Kuchta
  • M. Matuszek
  • J. Proficz
  • P. Rościszewski
  • J. Szymański
  • M. Wójcik

  - SIMULATION MODELLING PRACTICE AND THEORY - Rok 2017

  In this paper we present a new environment called MERPSYS that allows simulation of parallel application execution time on cluster-based systems. The environment offers a modeling application using the Java language extended with methods representing message passing type communication routines. It also offers a graphical interface for building a system model that incorporates various hardware components such as CPUs, GPUs, interconnects...

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• International Journal of Parallel Emergent and Distributed Systems

  Czasopisma

  ISSN: 1744-5760 , eISSN: 1744-5779

• Survey of Methodologies, Approaches, and Challenges in Parallel Programming Using High-Performance Computing Systems

  Publikacja

  • P. Czarnul
  • J. Proficz
  • K. Drypczewski

  - Scientific Programming - Rok 2020

  This paper provides a review of contemporary methodologies and APIs for parallel programming, with representative technologies selected in terms of target system type (shared memory, distributed, and hybrid), communication patterns (one-sided and two-sided), and programming abstraction level. We analyze representatives in terms of many aspects including programming model, languages, supported platforms, license, optimization goals,...

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• ARUZ — Large-scale, massively parallel FPGA-based analyzer of real complex systems

  Publikacja

  • R. Kiełbik
  • K. Hałagan
  • W. Zatorski
  • J. Jung
  • J. Ulański
  • A. Napieralski
  • K. Rudnicki
  • P. Amrozik
  • G. Jabłoński
  • D. Stożek... i 4 innych

  - COMPUTER PHYSICS COMMUNICATIONS - Rok 2018

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• Dynamic Data Management Among Multiple Databases for Optimization of Parallel Computations in Heterogeneous HPC Systems

  Publikacja

  • P. Rościszewski

  - Rok 2014

  Rapid development of diverse computer architectures and hardware accelerators caused that designing parallel systems faces new problems resulting from their heterogeneity. Our implementation of a parallel system called KernelHive allows to efficiently run applications in a heterogeneous environment consisting of multiple collections of nodes with different types of computing devices. The execution engine of the system is open for...

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• Investigation of Parallel Data Processing Using Hybrid High Performance CPU + GPU Systems and CUDA Streams

  Publikacja

  • P. Czarnul

  - COMPUTING AND INFORMATICS - Rok 2020

  The paper investigates parallel data processing in a hybrid CPU+GPU(s) system using multiple CUDA streams for overlapping communication and computations. This is crucial for efficient processing of data, in particular incoming data stream processing that would naturally be forwarded using multiple CUDA streams to GPUs. Performance is evaluated for various compute time to host-device communication time ratios, numbers of CUDA streams,...

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• Auto-tuning methodology for configuration and application parameters of hybrid CPU + GPU parallel systems based on expert knowledge

  Publikacja

  • P. Czarnul
  • P. Rościszewski

  - Rok 2020

  Auto-tuning of configuration and application param- eters allows to achieve significant performance gains in many contemporary compute-intensive applications. Feasible search spaces of parameters tend to become too big to allow for exhaustive search in the auto-tuning process. Expert knowledge about the utilized computing systems becomes useful to prune the search space and new methodologies are needed in the face of emerging heterogeneous...

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• Optimization of hybrid parallel application execution in heterogeneous high performance computing systems considering execution time and power consumption

  Publikacja

  • P. Rościszewski

  - Rok 2018

  Many important computational problems require utilization of high performance computing (HPC) systems that consist of multi-level structures combining higher and higher numbers of devices with various characteristics. Utilizing full power of such systems requires programming parallel applications that are hybrid in two meanings: they can utilize parallelism on multiple levels at the same time and combine together programming interfaces...

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• Grid Implementation of a Parallel Multiobjective Genetic Algorithm for Optimized Allocation of Chlorination Stations in Drinking Water Distribution Systems: Chojnice Case Study

  Publikacja

  • G. Ewald
  • W. Kurek
  • M. Brdyś

  - IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART C-APPLICATIONS AND REVIEWS - Rok 2008

  Solving multiobjective optimization problems requires suitable algorithms to find a satisfactory approximation of a globally optimal Pareto front. Furthermore, it is a computationally demanding task. In this paper, the grid implementation of a distributed multiobjective genetic algorithm is presented. The distributed version of the algorithm is based on the island algorithm with forgetting island elitism used instead of a genetic...

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• Implementation of Molecular Dynamics and Its Extensions with the Coarse-Grained UNRES Force Field on Massively Parallel Systems: Toward Millisecond-Scale Simulations of Protein Structure, Dynamics, and Thermodynamics

  Publikacja

  • A. Liwo
  • S. Ołdziej
  • C. Czaplewski
  • D. Kleinerman
  • P. Blood
  • H. Scheraga

  - Journal of Chemical Theory and Computation - Rok 2010

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• International Journal of Distributed and Parallel Systems

  Czasopisma

  ISSN: 2229-3957

• Graphical presentation of the power of energy losses and power developed in the elements hydrostatic drive and control system. Part II. Rotational hydraulic motor speed parallel throtling control and volumetric control systems

  Publikacja

  • Z. Paszota

  - Polish Maritime Research - Rok 2008

  Przedstawiono interpretację graficzną mocy strat energetycznych występujących w elementach układów napędu i sterowania hydrostatycznego, a także mocy rozwijanych przez te elementy. Dokonano analizy układu indywidualnego ze sterowaniem dławieniowym równoległym prędkości silnika hydraulicznego obrotowego, układu indywidualnego ze sterowaniem objętościowym, pompą o zmiennej wydajności, prędkości silnika hydrailicznego obrotowego,...

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• Exception handling model influence factors for discributed systems. W: Proceedings. PPAM 2003. Parallel Processing and Applied Mathematics. 5th In- ternational Conference. Częstochowa, 7-10 September 2003.Model obsługi wyjątków uwzględniający wpływ czynników systemu rozproszonego.

  Publikacja

  • P. Kaczmarek
  • H. Krawczyk

  - LECTURE NOTES IN COMPUTER SCIENCE - Rok 2003

  Specyfikacja programu jest jasno określona w systemach sekwencyjnych, gdzie posiada standardowe i wyjątkowe przejścia. Praca przedstawia rozszerzony model specyfikacji systemu w środowiskach rozproszonych uwzględniający szereg specyficznych czynników. Model zawiera analizę specyfikacji pod kątem obsługi wyjątków dla rozproszonych danych oraz komunikacji międzyprocesorowej. Ogólny model został zaimplementowany w środowisku...

• Parallel and Distributed Information Systems

  Konferencje

• International Conference on Parallel and Distributed Systems

  Konferencje

• Australasian Conference on Parallel and Real-Time Systems

  Konferencje

• International Conference on Massively Parallel Computing Systems

  Konferencje

• Real-Time Bleeding Detection in Gastrointestinal Tract Endoscopic Examinations Video

  Publikacja

  • A. Blokus
  • A. Brzeski
  • J. Cychnerski

  - International Journal of Distributed and Parallel Systems - Rok 2013

  The article presents a novel approach to medical video data analysis and recognition of bleedings. Emphasis has been put on adapting pre-existing algorithms dedicated to the detection of bleedings for real-time usage in a medical doctor’s office during an endoscopic examination. A real-time system for analyzing endoscopic videos has been designed according to the most significant requirements of medical doctors. The main goal of...

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• Paweł Czarnul dr hab. inż.

  Osoby

  Dział Usług Chmurowych, Wydział Elektroniki, Telekomunikacji i Informatyki, Katedra Architektury Systemów Komputerowych

  Paweł Czarnul uzyskał stopień doktora habilitowanego w dziedzinie nauk technicznych w dyscyplinie informatyka w roku 2015 zaś stopień doktora nauk technicznych w zakresie informatyki(z wyróżnieniem) nadany przez Radę Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej w roku 2003. Dziedziny jego zainteresowań obejmują: przetwarzanie równoległei rozproszone w tym programowanie równoległe na klastrach obliczeniowych,...

• Jerzy Konorski dr hab. inż.

  Osoby

  Katedra Teleinformatyki

  Jerzy Konorski otrzymał tytuł mgr inż. telekomunikacji na Poitechnice Gdańskiej, zaś stopień doktora n.t. w dyscyplinie informatyka w Instytucie Podstaw Informatyki PAN. W r. 2007 obronił rozprawę habilitacyjną na Wydziale Elektroniki, Telekomnikacji i Informatyki PG. Jest autorem ponad 150 publikacji naukowych, prowadził projekty naukowo-badawcze finansowane ze środków Komitetu Badań Naukowych, UE, US Air Force Office of Scientific...

• Przetwarzanie rozproszone

  Kursy Online

  • M. Kassjański
  • E. Lubecka

  Foundations and rules of distributed and parallel processing in networked computer systems.

• Paweł Rościszewski dr inż.

  Osoby

  Paweł Rościszewski received his PhD in Computer Science at Gdańsk University of Technology in 2018 based on PhD thesis entitled: "Optimization of hybrid parallel application execution in heterogeneous high performance computing systems considering execution time and power consumption". Currently, he is an Assistant Professor at the Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Poland....

• Jerzy Proficz dr hab. inż.

  Osoby

  Centrum Informat. Trójmiejskiej Akadem.Sieci Komputerowej, Katedra Architektury Systemów Komputerowych

  Jerzy Proficz – dyrektor Centrum Informatycznego Trójmiejskiej Akademickiej Sieci Komputerowej (CI TASK) na Politechnice Gdańskiej. Uzyskał stopień naukowy doktora habilitowanego (2022) w dyscyplinie: Informatyka techniczna i telekomunikacja. Autor i współautor ponad 50 artykułów w czasopismach i na konferencjach naukowych związanych głównie z równoległym przetwarzaniem danych na komputerach dużej mocy (HPC, chmura obliczeniowa). Udział...

• Dielectric Properties of BiNbO₄-Based Ceramic-Polymer Composites with 0-3 Connectivity

  Publikacja

  • A. Lisińska-Czekaj
  • J. Micior
  • M. Adamczyk
  • D. Czekaj

  - Key Engineering Materials - Rok 2014

  In the present study two-phase BiNbO4//PVDF composites with 0-3 connectivity were studied by impedance spectroscopy within the frequency range Δν=100Hz-1MHz at room temperature. Polyvinylidene fluoride (PVDF) acted as a matrix whereas bismuth niobate (BiNbO4) powder acted as a dispersed phase. The volume fraction of the ceramic phase was cV=2, 4, 6, 8, 10, 16 and 20vol%. Analysis of the impedance data registered for composites...

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• Kamil Andrzej Rybacki mgr inż.

  Osoby

  Born on 23 October 1993 in Gdańsk. In 2017, I have received the M.Sc. Degree at the Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Poland. My main fields of interest include computer simulations of molecular systems, parallel computing in application to computational physics methods and development of various simulation software. Currently, my research is focused on the development of hybrid Molecular...

• Polityka i porządek prawny w polskiej energetyce na tle polityki Unii Europejskiej

  Publikacja

  • M. Bartosik
  • W. Kamrat
  • M. Każmierkowski
  • W. Lewandowski
  • P. Maciej
  • T. Peryt
  • T. Skoczkowski
  • S. Andrzej
  • S. Adam

  - Przegląd Elektrotechniczny - Rok 2016

  W artykule przeanalizowano rozwój wspólnotowego rynku energii elektrycznej, polityk ę energetyczną Polski i UE, sytuację i działania Polski na wspólnotowym rynku energii elektrycznej, a następnie przeanalizowano nowe regulacje prawne dla współpracy rozproszonych źródeł energii elektrycznej i sieci inteligentnych z systemem krajowym, dla zwrotu energii odzyskiwanej z systemów elektromechanicznych do zasilającej...

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• Computer controlled systems - 2022/2023

  Kursy Online

  • P. Raczyński

  materiały wspierające wykład na studiach II stopnia na kierunku ACR pod tytułem komputerowe systemy automatyki 1. Computer system – controlled plant interfacing technique; simple interfacing and with both side acknowledgement; ideas, algorithms, acknowledge passing. 2. Methods of acknowledgement passing: software checking and passing, using interrupt techniques, using readiness checking (ready – wait lines). The best solution...

• Cellulosic bionanocomposites based on acrylonitrile butadiene rubber and Cuscuta reflexa: adjusting structure-properties balance for higher performance

  Publikacja

  • M. Dominic C.D.
  • R. Joseph
  • P. S. Begum
  • A. S. Kumar
  • P. A. Jeemol
  • T. Jose
  • D. Padmanabhan
  • K. Formela
  • S. Siengchin
  • J. Parameswaranpillai
  • M. Saeb

  - CELLULOSE - Rok 2021

  Design and manufacture of cellulosic nanocomposites with acceptable performance is in the period of a transition from fantasy to reality. Typically, cellulosic nanofillers reveal poor compatibility with polymer matrices. Thus, adjusting the balance between structure and properties of cellulosic bionanocomposites by careful selection of parent ingredients is the first priority. Herein, we incorporated Cuscuta reflexa derived cellulose...

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• Wiktoria Wojnicz dr hab. inż.

  Osoby

  Zakład Mechaniki Stosowanej i Biomechaniki, Wydział Inżynierii Mechanicznej i Okrętownictwa, Instytut Mechaniki i Konstrukcji Maszyn

  DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019  PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   Publikacje z listy MNiSW (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E., Analysis...

• Robert Aranowski dr inż.

  Osoby

  Katedra Inżynierii Procesowej i Technologii Chemicznej

• CYBERNETICS AND SYSTEMS

  Czasopisma

  ISSN: 0196-9722 , eISSN: 1087-6553

• High-efficiency mini and micro heat exchangers for dispersed power generation

  Publikacja

  • J. Wajs
  • D. Mikielewicz

  - Rok 2019

  Taking into account the dispersed systems technologies and their development, the ORC systems seem to be promising technology amongst various micro-CHP domestic units (electrical power production below 10 kWe), however practical realization of the ORC cycle in a micro-scale is technically challenging. The system consists in devices such as the vapour generation unit (boiler), expansion device and heat exchangers. Each of them should...

• Economic vitality of Polish suburbs

  Publikacja

  • J. Martyniuk-Pęczek
  • O. Martyniuk
  • G. Pęczek

  - GSTF Journal of Engineering Technology - Rok 2016

  Since 1989, Poland has been undergoing major political, social and economic transformations. The effects of these changes are visible on several levels, including the field of urban planning, where they manifested themselves as the birth of the suburbanization process. In the field of economics, it could be noticed that since 1989, the SME sector has been awakening very dynamically. Correlation of the parallel development of these...

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• CCS-lecture-2023-2024

  Kursy Online

  • P. Raczyński

  materiały wspierające wykład na studiach II stopnia na kierunku ACR pod tytułem komputerowe systemy automatyki 1. Computer system – controlled plant interfacing technique; simple interfacing and with both side acknowledgement; ideas, algorithms, acknowledge passing. 2. Methods of acknowledgement passing: software checking and passing, using interrupt techniques, using readiness checking (ready – wait lines). The best solution optimization...

• Novel cast polyetherurethanes based on dispersed polymeric polyols

  Publikacja

  • E. Głowińska
  • J. Datta
  • J. F. Rodríguez
  • D. Simón
  • M. Carmona

  - POLYMER TESTING - Rok 2018

  Our study was focused on obtaining polyetherurethanes synthesized with using polymeric polyether based polyols differing in dispersed copolymer content (10, 20 and 40 wt%). The polyetherurethane materials were synthesized via two step method. The influence of different polymeric polyether based polyols on the chemical structure, morphology, mechanical and thermal properties of the obtained polyetherurethanes was investigated. The...

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• Economic Vitality of Polish Suburbs

  Publikacja

  • J. Martyniuk-Pęczek
  • O. Martyniuk
  • G. Pęczek

  - Rok 2015

  For over 25 years, Poland has been undergoing major political, social and economic transformations. The country's system changed from a planned economy to a free-market, neo-liberal one. The effects of these changes are visible on several levels, including the field of urban planning, where they manifested themselves as the birth of the suburbanization process. In the field of economics, it could be noticed that since 1989, the...

• Modeling energy consumption of parallel applications

  Publikacja

  • P. Czarnul
  • J. Kuchta
  • P. Rościszewski
  • J. Proficz

  - Annals of Computer Science and Information Systems - Rok 2016

  The paper presents modeling and simulation of energy consumption of two types of parallel applications: geometric Single Program Multiple Data (SPMD) and divide-and-conquer (DAC). Simulation is performed in a new MERPSYS environment. Model of an application uses the Java language with extension representing message exchange between processes working in parallel. Simulation is performed by running threads representing distinct process...

  Pełny tekst do pobrania w portalu

• Justyna Zander dr inż.

  Osoby

• NVRAM as Main Storage of Parallel File System

  Publikacja

  • A. Malinowski

  - Journal of Computer Science and Control Systems - Rok 2016

  Modern cluster environments' main trouble used to be lack of computational power provided by CPUs and GPUs, but recently they suffer more and more from insufficient performance of input and output operations. Apart from better network infrastructure and more sophisticated processing algorithms, a lot of solutions base on emerging memory technologies. This paper presents evaluation of using non-volatile random-access memory as a...

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• Modeling Parallel Applications in the MERPSYS Environment

  Publikacja

  • P. Czarnul

  - Rok 2016

  The chapter presents how to model parallel computational applications for which simulation of execution in a large-scale parallel or distributed environment is performed within the MERPSYS environment. Specifically, it is shown what approaches can be adopted to model key paradigms often used for parallel applications: master-slave, geometric parallelism (single program multiple data), pipelined and divide-and-conquer applications....