ftp://sdcd.gsfc.nasa.gov/pub/HPCC/ESS/rood/domain_decomp.tar.Z Domain Decomposition Tool <author> <version> <abstract> The code sets up geometric relationships between nodes and node boundaries in block type domain decomposition for 2D grids periodic in both dimensions. The code computes the node numbers for the 4 nodes which are the nearest neighbors of the current node and establishes the boundaries of each node's region in the physical space. This can be used as input into a communications routine for block type domain decomposition on 2D periodic grids. The code is easily extended to three spatial dimensions. <description> <url>http://sdcd.gsfc.nasa.gov/ESS/exchange/contrib/rood/domain_decomp.html </url> <reference><url></url> <contact> <keywords>data partitioning; tiling; parallel processing tool <category>ppt-misc <publication-date> <environment> <method> <application> <comments> The code produces output which can be used as input into a communications routine appropriate for the numerical integration of spatial PDE's. </urc>