• DocumentCode
    602855
  • Title

    LU factorization using multithreaded system

  • Author

    Badawy, Mohamed O. ; Hanafy, Yasser Y. ; Eltarras, R.

  • Author_Institution
    Coll. of Comput. & Inf. Technol., Arab Acad. for Sci. & Technol. & Maritime Transp., Alexandria, Egypt
  • fYear
    2012
  • fDate
    13-15 Oct. 2012
  • Firstpage
    9
  • Lastpage
    14
  • Abstract
    The problem of solving large systems of linear equations of the form (Ax = b) arises in various applications such as finite element analysis, computational fluid dynamics, and power systems analysis, which is of high algorithms complexities, that takes a lot of execution time. The high computational power required for fast solution of such problem is beyond the reach of present day conventional uniprocessor. Furthermore, the performance of using a system of uniprocessor tends to display an early saturation in relation to their costs. This implies that even modest gains in performance of a uniprocessor come at an exorbitant increase in its cost, that made the use of new technologies mandatory to minimize the execution time. This paper presents a parallel implementation of the classical solution of system of linear equations at high and reasonable speed up. The speed up achievement is obtained through the fine granularity in data and tasks, and asynchronicity to hide latency of memory access.
  • Keywords
    computational complexity; multi-threading; multiprocessing systems; storage management; LU factorization; algorithm complexity; asynchronicity; computational fluid dynamics; computational power; data fine granularity; execution time minimization; finite element analysis; linear equation; memory access latency; multithreaded system; power system analysis; task fine granularity; uniprocessor; Dense linear algebra; LU factorization; Many-core; Multicore; Multithreading; Task scheduling;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Computer Theory and Applications (ICCTA), 2012 22nd International Conference on
  • Conference_Location
    Alexandria
  • Print_ISBN
    978-1-4673-2823-4
  • Type

    conf

  • DOI
    10.1109/ICCTA.2012.6523540
  • Filename
    6523540