Grid Global Grid

Overview

The global grid defines the indexing across the global mesh in order to later set up domain decomposition.

The figure below highlights that the global grid defines indexing information (red) and associated partitioning (grey) across the entire system:

Implementation

Cabana_Grid_GlobalGrid.hpp

Examples

• Global Grid Example
• Global Grid Unit Test

Usage

    auto global_mesh = Cabana::Grid::createUniformGlobalMesh(
        global_low_corner, global_high_corner, global_num_cell );

    std::array<bool, 2> is_dim_periodic = { true, true };
    Cabana::Grid::DimBlockPartitioner<2> partitioner;

    auto global_grid = Cabana::Grid::createGlobalGrid( MPI_COMM_WORLD, global_mesh,
                                                       is_dim_periodic, partitioner );

This is part of the Programming Guide series