Wyniki wyszukiwania dla: HYBRID HIGH PERFORMANCE COMPUTING

• Efficient parallel implementation of crowd simulation using a hybrid CPU+GPU high performance computing system

  Publikacja

  • J. Skrzypczak
  • P. Czarnul

  - SIMULATION MODELLING PRACTICE AND THEORY - Rok 2023

  In the paper we present a modern efficient parallel OpenMP+CUDA implementation of crowd simulation for hybrid CPU+GPU systems and demonstrate its higher performance over CPU-only and GPU-only implementations for several problem sizes including 10 000, 50 000, 100 000, 500 000 and 1 000 000 agents. We show how performance varies for various tile sizes and what CPU–GPU load balancing settings shall be preferred for various domain...

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• Journal of High Performance Computing

  Czasopisma

  ISSN: 2230-7192

• 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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• 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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• BeesyCluster as Front-End for High Performance Computing Services

  Publikacja

  • P. Czarnul

  - TASK Quarterly - Rok 2015

  The paper presents the BeesyCluster system as a middleware allowing invocation of services on high performance computing resources within the NIWA Centre of Competence project. Access is possible through both WWW and SOAP Web Service interfaces. The former allows non-experienced users to invoke both simple and complex services exposed through easyto-use servlets. The latter is meant for integration of external applications with...

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• CCF Transactions on High Performance Computing

  Czasopisma

  ISSN: 2524-4922 , eISSN: 2524-4930

• Energy-Aware Scheduling for High-Performance Computing Systems: A Survey

  Publikacja

  • B. Kocot
  • P. Czarnul
  • J. Proficz

  - ENERGIES - Rok 2023

  High-performance computing (HPC), according to its name, is traditionally oriented toward performance, especially the execution time and scalability of the computations. However, due to the high cost and environmental issues, energy consumption has already become a very important factor that needs to be considered. The paper presents a survey of energy-aware scheduling methods used in a modern HPC environment, starting with the...

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• Teaching High Performance Computing Using BeesyCluster and Relevant Usage Statistics

  Publikacja

  • P. Czarnul

  - Rok 2014

  The paper presents motivations and experiences from using the BeesyCluster middleware for teaching high performance computing at the Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology. Features of BeesyCluster well suited for conducting courses are discussed including: easy-to-use WWW interface for application development and running hiding queuing systems, publishing applications as services...

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• International Journal of Grid and High Performance Computing

  Czasopisma

  ISSN: 1938-0259 , eISSN: 1938-0267

• International Journal of High Performance Computing and Networking

  Czasopisma

  ISSN: 1740-0562

• 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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• Efficiency Evaluation of High Performance Computing Systems Using Data Envelopment Analysis

  Publikacja

  • P. Kaczmarek

  - Rok 2014

  The paper presents an evaluation method of high performance computing (HPC) systems using multicriteria efficiency analysis. The Data Envelopment Analysis approach was applied and adapted to the specifics of HPC, which enabled us to compare relative efficiency of systems considering simultaneously multiple parameters. The analysis is based on the TOP500 list of world largest supercomputers and their parameters such as: the number...

• Energy-Aware High-Performance Computing: Survey of State-of-the-Art Tools, Techniques, and Environments

  Publikacja

  • P. Czarnul
  • J. Proficz
  • A. Krzywaniak

  - Scientific Programming - Rok 2019

  The paper presents state of the art of energy-aware high-performance computing (HPC), in particular identification and classification of approaches by system and device types, optimization metrics, and energy/power control methods. System types include single device, clusters, grids, and clouds while considered device types include CPUs, GPUs, multiprocessor, and hybrid systems. Optimization goals include various combinations of...

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• DEPO: A dynamic energy‐performance optimizer tool for automatic power capping for energy efficient high‐performance computing

  Publikacja

  • A. Krzywaniak
  • P. Czarnul
  • J. Proficz

  - SOFTWARE-PRACTICE & EXPERIENCE - Rok 2022

  In the article we propose an automatic power capping software tool DEPO that allows one to perform runtime optimization of performance and energy related metrics. For an assumed application model with an initialization phase followed by a running phase with uniform compute and memory intensity, the tool performs automatic tuning engaging one of the two exploration algorithms—linear search (LS) and golden section search (GSS), finds...

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• Calibration of precipitation estimation algorithm with particular emphasis on the Pomeranian region using high performance computing

  Publikacja

  • T. Bieliński
  • A. Chybicki

  - HYDROACOUSTICS - Rok 2016

  Fast and accurate precipitation estimation is an important element of remote atmosphere monitoring, as it allows, for example, to correct short-term weather forecasts and the prediction of several types of meteorological threats. The paper presents methodology for calibrating precipitation estimation algorithm based on MSG SEVIRI sensor data, and Optimal Cloud Analysis product available via EumetCast transmission. Calibration is...

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• KernelHive: a new workflow-based framework for multilevel high performance computing using clusters and workstations with CPUs and GPUs

  Publikacja

  • P. Rościszewski
  • P. Czarnul
  • R. Lewandowski
  • M. Schally - Kacprzak

  - CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE - Rok 2016

  The paper presents a new open-source framework called KernelHive for multilevel parallelization of computations among various clusters, cluster nodes, and finally, among both CPUs and GPUs for a particular application. An application is modeled as an acyclic directed graph with a possibility to run nodes in parallel and automatic expansion of nodes (called node unrolling) depending on the number of computation units available....

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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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• Core/shell structured Ti/Si/C composite for high-performance zinc-ion hybrid capacitor

  Publikacja

  • A. Dymerska
  • B. Środa
  • B. Zielińska
  • E. Mijowska

  - Journal of Alloys and Compounds - Rok 2023

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• Self-organized multilayered graphene-boron doped diamond hybrid nanowalls for high performance electron emission devices

  Publikacja

  • K. J. Sankaran
  • M. Ficek
  • S. Kunuku
  • P. Kalpataru
  • C. Yeh
  • J. Park
  • M. Sawczak
  • P. Michałowski
  • K. Leou
  • R. Bogdanowicz... i 2 innych

  - NANOSCALE - Rok 2018

  Carbon nanomaterials like nanotubes, nanoflakes/nanowalls and graphene have been used as electron sources due to their superior field electron emission (FEE) characteristics. Nevertheless, these materials show poor stability and a short lifetime, preventing them from being used in practical device applications. The intention of this study was to find an innovative nanomaterial, possessing both high robustness and reliable FEE behavior....

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• Phosphorus, nitrogen and oxygen co-doped polymer-based core-shell carbon sphere for high-performance hybrid supercapacitors

  Publikacja

  • C. Huang
  • A. Puziy
  • O. Poddubnaya
  • D. Hulicova-Jurcakova
  • M. Sobiesiak
  • B. Gawdzik

  - Electrochimica Acta - Rok 2018

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• INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS

  Czasopisma

  ISSN: 1094-3420 , eISSN: 1741-2846

• Workshop On Java For High-Performance Computing

  Konferencje

• International Conference on High Performance Computing

  Konferencje

• High Performance Computing Systems Lab / Systemy Obliczeniowe Wysokiej Wydajności - laboratorium

  Kursy Online

  • M. Rewieński

  Systemy Obliczeniowe Wysokiej Wydajności (SOWW) - Laboratorium

• International Conference on High Performance Scientific Computing

  Konferencje

• International Conference on High Performance Computing and Networking

  Konferencje

• Systemy obliczeniowe wysokiej wydajności/High performance computing systems / L-22/23

  Kursy Online

  • A. Krzywaniak
  • P. Rościszewski
  • M. Matuszek
  • P. Januszewski
  • S. Olewniczak
  • P. Czarnul
  • R. Kałaska

• Systemy obliczeniowe wysokiej wydajności/High performance computing systems / L-23/24

  Kursy Online

  • M. Matuszek
  • A. Brzeski
  • P. Czarnul
  • R. Kałaska

• Systemy obliczeniowe wysokiej wydajności/High performance computing >> systems - Nowy - Nowy

  Kursy Online

  • A. Krzywaniak
  • P. Rościszewski
  • M. Matuszek
  • K. Draszawka
  • P. Januszewski
  • S. Olewniczak
  • P. Czarnul
  • R. Kałaska

• International Symposium on Computer Architecture and High Performance Computing

  Konferencje

• IEEE International Conference on High Performance Computing and Simulation

  Konferencje

• ACM International Symposium on High Performance Distributed Computing

  Konferencje

• International Meeting on High Performance Computing for Computational Science

  Konferencje

• IEEE International Conference on High Performance Computing and Communications

  Konferencje

• International Conference on High Performance Computing, Networking and Communication Systems

  Konferencje

• High-Performance Grid Computing Workshop (part of IPDPS Conference)

  Konferencje

• International Workshop on Software Engineering for High Performance Computing Applications

  Konferencje

• International Conference on Grid computing, high-performance and Distributed Applications

  Konferencje

• International Conference and Exhibition on High Performance Computing in the Asia-Pacific Region

  Konferencje

• Programming, tunning and automatic parallelization of irregular divide and conquer applications in DAMPVM/DAC.

  Publikacja

  • P. Czarnul

  - INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS - Rok 2003

  Artykuł prezentuje nowy, obiektowo zorientowany wzorzec programowy DAMPVM/DAC, który zimplementowany został z użyciem systemu DAMPVM i umożliwia automatyczny podział nieregularnych aplikacji "Dziel i zwyciężaj" (DAC) w czasie ich działania.

• International Conference on High-Performance Clustered Computing (International Conference on Linux Clusters)

  Konferencje

• International Conference for High Performance Computing, Networking, Storage and Analysis (ACM/IEEE Supercomputing Conference)

  Konferencje

• 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....

• Benchmarking Performance of a Hybrid Intel Xeon/Xeon Phi System for Parallel Computation of Similarity Measures Between Large Vectors

  Publikacja

  • P. Czarnul

  - INTERNATIONAL JOURNAL OF PARALLEL PROGRAMMING - Rok 2016

  The paper deals with parallelization of computing similarity measures between large vectors. Such computations are important components within many applications and consequently are of high importance. Rather than focusing on optimization of the algorithm itself, assuming specific measures, the paper assumes a general scheme for finding similarity measures for all pairs of vectors and investigates optimizations for scalability...

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• 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...

• Karol Zdzisław Zalewski mgr inż.

  Osoby

• 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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• Research 1: Heterojunction of (P, S) co-doped g-C3N4 and 2D TiO2 for improved carbamazepine and acetaminophen photocatalytic degradation

  Dane Badawcze

  open access

  • E. Çako

  The first research article consisted on the synthesis of phosphorus and sulfur co-doped graphitic carbon nitride incorporated in 2D TiO2 structure for solar-driven degradation of emerging pollutants from the group of pharmaceuticals not susceptible to biodegradation. The hybrid photocatalysts with different loadings of (P, S)-doped g-C3N4 were characterized...

• EuroCC Narodowe Centra Kompetencji EuroHPC

  Projekty

  Kierownik projektu: dr hab. inż. Jerzy Proficz   Program finansujący: HORYZONT 2020

  Projekt realizowany w Centrum Informat. Trójmiejskiej Akadem.Sieci Komputerowej zgodnie z porozumieniem 951732 — EUROCC — H2020-JTI-EuroHPC-2019-2 z dnia 2020-08-31

• Robert Bogdanowicz dr hab. inż.

  Osoby

  Katedra Metrologii i Optoelektroniki

  Robert Bogdanowicz received his Ph.D. degree with honours in Electronics from the Gdansk University of Technology. He worked as a post-doc researcher in Ernst-Moritz-Arndt-Universität Greifswald Institut für Physik. He has initiated optical emission imaging of muti-magnetron pulsed plasma and contributed to the development of antibacterial implant coatings deposited by high-power impulse magnetron sputtering. He moved back to...