System and Network Programming


In this domain the application of Markov chains, the theory of queueing and the stochastic processes in the optimisation of the data flow in the B-ISDN distributed networks were investigated. The very important problems in these researches are investigations of different aspects which concern the security of the conversion and transfer of data in the distributed computer systems. The Super -Computer Laboratory operates in the domain discussed above. This Laboratory have begun the scientific researches which concern the following problems:


  • methods and tools for efficient parallel programming of the multi-processor systems and work-station networks,
  • development of the system methods in the multi-processor computers,
  • methods of the numerical algorithms implementation in the massively-parallel super-computer systems,

    • his work has been organised with informal co-operation of the foreign and native partners. Among others, in the Super-Computer Group (Katedra) the aided parallel programming system GRADE has been introduced, which was elaborated in the COPERNICUS program financed by EC. We expect then new experimental systems, elaborated in the British and French Universities will be installed in the Group. The scientific staff of the Chair participates into the seminars organised by PJIIT Institute of Computers Sciences and the Institute of Computer Science of the Polish Academy of Sciences. Now, we have begun the seminars entitled: "The Supercomputers and methods of the parallel conversion of information". In connection with the appointment of Laboratory in the Supercomputer HITACHI SR 2201, we organised Supercomputer Committee in which participates the technical and scientific staff of PJIIT and the Japanese JICA experts (since 10 months). The Committee organises and supervises the scientific and technical works connected with the supercomputer and its applications. For the most part the committee cooperates, in the parallel computer systems, with the other establishments (Technical University of Bialystok, Technical University of Czestochowa, Technical University of Silesia, Institute of Computer Science of the Polish Academy of Sciences, IITS in Gliwice, Nuclear Institute of Swierk) and foreign establishments (Saitama University, Ibaraki University, Hungarian Academy of Sciences, Westminster University in London, University of Grenoble). Responsible person: Prof. M.Tudruj, Prof. A.Jordan, Dr. W.Maka,

    Cooperation:

    1. Research project R103 : Methodology of parallel program design under Polish-Japanese bilateral agreement ; leader from the Japanese side: prof. Makato Amamiya, Kyushu Univ.
    2. Research project R104 : Tele-education system using JAVA; under Polish-Japanese bilateral agreement ; leader from the Japanese side: prof. Sataru Ozawa, Ibaraki Univ.

    Application of the Hitachi SR2201 supercomputer to technical and economical sciences

    The supercomputer SR 2201 of the firm Hitachi being in the possession of the Polish-Japanese Institute of Information Technology is equipped with 16 processors RISC (effectiveness of the processor RISC - 300 MFLOPS, clock frequency 150 MHz). Such effective computing unit can find an application in many areas of science and technology.

    Among the first-plan computational methods of large hierarchical dependence upon the data stream and instruction stream which can be realised by the supercomputer Hitachi SR 2201 the following be distinguished: the finite element method (FEM) with pre- and post-processing modules and an analysis in concurrent formulation. The software of this kind can find an application in the following domains of technology:

     

  • dynamics of fluids and gases (simulation of the stream flows around cars, planes etc)
  • structural analysis (design of large buildings, bridges, dams)
  • analysis of heat transfer (e.g. design of large power turbo-generators)
  • modelling of petroleum beds
  • high accuracy analysis of the electromagnetic problems in geometrically complicated regions (e.g. modelling of the electromagnetic field under high voltage power lines, modelling of transformers, generators etc) II.

    • Among the scientific disciplines in which the supercomputer Hitachi SR 2201 and algorithms of concurrent programming should find application are:


  • Econometrics, especially linear, non-linear and dynamic programming
  • optimisation theory with particular consideration of the technique of genetic algorithms which are concurrent by their nature
  • theory of the wavelet transform applied to picture compression. The possibility exists of the transform application in other fields of knowledge, e.g. the analysis of measurement signals with high level of hum
  • analysis of measurement signals coming from thousands of transducers measuring e.g. sound waves reflected of petroleum beds. The basic feature of such kind of researches is processing of the large representation of measured data by means of the fast Fourier transform (FFT).
  • organisation of the Central Data Base with a central server in the form of a supercomputer. The Central Data Base will be elaborated as a basic source of information transmitted by Internet to subjected nets of Intranet servicing for separate economical units, universities, corporations etc.
  • linear algebra and connected analysis of the large systems of algebraic equations (e.g. decomposition method LU)

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