Year 2016

• A Parallel MPI I/O Solution Supported by Byte-addressable Non-volatile RAM Distributed Cache

  Publication

  • A. Malinowski
  • P. Czarnul
  • P. Dorożyński
  • K. Czuryło
  • Ł. Dorau
  • M. Maciejewski
  • P. Skowron

  - Annals of Computer Science and Information Systems - Year 2016

  While many scientific, large-scale applications are data-intensive, fast and efficient I/O operations have become of key importance for HPC environments. We propose an MPI I/O extension based on in-system distributed cache with data located in Non-volatile Random Access Memory (NVRAM) available in each cluster node. The presented architecture makes effective use of NVRAM properties such as persistence and byte-level access behind...

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• Checkpointing of Parallel MPI Applications using MPI One-sided API with Support for Byte-addressable Non-volatile RAM

  Publication

  • P. Dorożyński
  • P. Czarnul
  • A. Malinowski
  • K. Czuryło
  • Ł. Dorau
  • M. Maciejewski
  • P. Skowron

  - Year 2016

  The increasing size of computational clusters results in an increasing probability of failures, which in turn requires application checkpointing in order to survive those failures. Traditional checkpointing requires data to be copied from application memory into persistent storage medium, which increases application execution time as it is usually done in a separate step. In this paper we propose to use emerging byte-addressable...

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• Towards Healthcare Cloud Computing

  Publication

  • P. Dorożyński
  • A. Brzeski
  • J. Cychnerski
  • T. Dziubich

  - Year 2016

  In this paper we present construction of a software platform for supporting medical research teams, in the area of impedance cardiography, called IPMed. Using the platform, research tasks will be performed by the teams through computer-supported cooperative work. The platform enables secure medical data storing, access to the data for research group members, cooperative analysis of medical data and provide analysis supporting tools...

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Year 2014

• AN ALGORITHM FOR PORTAL HYPERTENSIVE GASTROPATHY RECOGNITION ON THE ENDOSCOPIC RECORDINGS

  Publication

  • J. Cychnerski
  • P. Dorożyński
  • T. Dziubich

  - Year 2014

  Symptoms recognition of portal hypertensive gastropathy (PHG) can be done by analysing endoscopic recordings, but manual analysis done by physician may take a long time. This increases probability of missing some symptoms and automated methods may be applied to prevent that. In this paper a novel hybrid algorithm for recognition of early stage of portal hypertensive gastropathy is proposed. First image preprocessing is described....

• Merging Images from Parallel Depth Cameras

  Publication

  • A. Brzeski
  • P. Dorożyński
  • K. Dziubich
  • T. Dziubich

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Year 2014

  In this paper a problem of simultaneous information acquisition from multiple depth cameras is investigated, aiming at obtaining single overall picture containing information from all cameras. The experiments are carried out on Microsoft Kinect devices. A methodology for merging images from multiple positioned in a line cameras is proposed. The method is based on the concept of simulating a view of an imaginary camera covering...