Performance Optimization of 3D Lattice Boltzmann Flow Solver on a GPU

Algorithm 2

Basic skeleton of LBM algorithm.

() void LBM(double *source_grid, double

    dest_grid, int grid_size, int timeSteps)

() 

()  int  i;

()  double temp_grid;

()  for  (i = 0; i < timeSteps; i++)

()  

()   collide(source_grid, temp_grid, grid_size);

()   stream(temp_grid, dest_grid, grid_size);

()   swap_grid(source_grid, dest_grid);

()   

()