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[Keyword] geospatial raster(1hit)

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  • Parallel Geospatial Raster Data I/O Using File View

    Wei XIONG  Ye WU  Luo CHEN  Ning JING  

     
    LETTER-Storage System

      Pubricized:
    2015/09/15
      Vol:
    E98-D No:12
      Page(s):
    2192-2195

    The challenges of providing a divide-and-conquer strategy for tackling large geospatial raster data input/output (I/O) are longstanding. Solutions need to change with advances in the technology and hardware. After analyzing the reason for the problems of traditional parallel raster I/O mode, a parallel I/O strategy using file view is proposed to solve these problems. Message Passing Interface I/O (MPI-IO) is used to implement this strategy. Experimental results show how a file view approach can be effectively married to General Parallel File System (GPFS). A suitable file view setting provides an efficient solution to parallel geospatial raster data I/O.