Grid Global Mesh

Overview

All meshes in Cabana::Grid are logically rectilinear: each mesh cell is either cubic or rectangular. The global mesh defines the geometry of entire system prior to domain decomposition.

The figure below highlights that the global mesh holds information for the total system domain:

Implementation

Cabana_Grid_GlobalMesh.hpp

Examples

• Global Mesh Example
• Global Mesh Unit Test

Usage

    std::array<int, 3> global_num_cell = { 22, 19, 21 };

    std::array<double, 3> global_low_corner = { 1.2, 3.3, -2.8 };
    std::array<double, 3> global_high_corner = {
        global_low_corner[0] + cell_size * global_num_cell[0],
        global_low_corner[1] + cell_size * global_num_cell[1],
        global_low_corner[2] + cell_size * global_num_cell[2] };

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

This is part of the Programming Guide series