3 #include <petsc.h>
7   PetscReal dist = 0;  in Distance()  local
8   for (PetscInt j = 0; j < dim; j++) dist += PetscSqr(x[j] - y[j]);  in Distance()
9   return PetscSqrtReal(dist);  in Distance()
25   PetscCall(PetscLogDefaultBegin()); // So we can use PetscLogEventGetPerfInfo without -log_view  in main()
29 …PetscCall(PetscOptionsInt("-num_coords", "Number of coordinates", "", PETSC_FALSE, &num_coords, NU…  in main()
30   PetscCall(PetscOptionsInt("-dim", "Dimension of the coordinates", "", PETSC_FALSE, &dim, NULL));  in main()
31 …PetscCall(PetscOptionsInt("-bucket_size", "Size of the bucket at each leaf", "", bucket_size, &buc…  in main()
32 …PetscCall(PetscOptionsBoundedInt("-loops", "Number of times to loop through KDTree creation and qu…  in main()
33 …PetscCall(PetscOptionsEnum("-copy_mode", "Copy mode to use with KDTree", "PetscKDTreeCreate", Pets…  in main()
34   PetscCall(PetscOptionsBool("-view_tree", "View the KDTree", "", view_tree, &view_tree, NULL));  in main()
35 …PetscCall(PetscOptionsBool("-view_performance", "View the performance speed of the KDTree", "", vi…  in main()
36 …PetscCall(PetscOptionsBool("-test_tree_points", "Test querying tree points against itself", "", te…  in main()
37 …PetscCall(PetscOptionsBool("-test_rand_points", "Test querying random points via brute force", "",…  in main()
38 …PetscCall(PetscOptionsBool("-query_rand_points", "Query querying random points", "", query_rand_po…  in main()
39 …if (test_rand_points || query_rand_points) PetscCall(PetscOptionsInt("-num_rand_points", "Number o…  in main()
80           PetscInt   index = -1;  in main()
82             PetscReal dist = Distance(dim, rand_point, &coords[dim * j]);  in main()  local
83             if (dist < nearest_distance) {  in main()
84               nearest_distance = dist;  in main()
120 …args: -num_coords 35 -test_tree_points -test_rand_points -num_rand_points 300 -bucket_size 13 -vie…
123       args: -dim 1
126       args: -dim 2
129       args: -dim 3
132       args: -dim 3 -num_coords 13
136 …args: -dim 3 -num_coords 350 -test_tree_points -test_rand_points -num_rand_points 300 -view_perfor…
141       args: -copy_mode copy_values
144       args: -copy_mode use_pointer