YetAnotherCoupler 3.2.0_a
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test_interp_method_hcsbb_parallel.c

A test for the parallel Hybrid cubic spherical Bernstein-Bezier interpolation method.

// Copyright (c) 2024 The YAC Authors
//
// SPDX-License-Identifier: BSD-3-Clause
#include <stdlib.h>
#include "tests.h"
#include "test_common.h"
#include "geometry.h"
#include "interp_method.h"
#include "interp_method_hcsbb.h"
#include "interp_method_fixed.h"
#include "dist_grid_utils.h"
#include "yac_mpi.h"
#include <mpi.h>
#include <yaxt.h>
#include <netcdf.h>
enum yac_interp_weights_reorder_type reorder_types[] =
{YAC_MAPPING_ON_SRC, YAC_MAPPING_ON_TGT};
size_t num_reorder_types = sizeof(reorder_types) / sizeof(reorder_types[0]);
static void compute_field_data_XYZ(
double (*vertices)[3], size_t num_vertices, double * f_v);
static char const * grid_names[2] = {"src_grid", "tgt_grid"};
int main(void) {
MPI_Init(NULL, NULL);
xt_initialize(MPI_COMM_WORLD);
int comm_rank, comm_size;
MPI_Comm_rank(MPI_COMM_WORLD, &comm_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
MPI_Barrier(MPI_COMM_WORLD);
if (comm_size != 6) {
PUT_ERR("ERROR: wrong number of processes");
xt_finalize();
MPI_Finalize();
return TEST_EXIT_CODE;
}
MPI_Comm split_comm;
MPI_Comm_split(MPI_COMM_WORLD, comm_rank < 1, 0, &split_comm);
int split_comm_rank, split_comm_size;
MPI_Comm_rank(split_comm, &split_comm_rank);
MPI_Comm_size(split_comm, &split_comm_size);
{ // parallel interpolation process
// corner and cell ids for a 7 x 7 grid
// 56-----57-----58-----59-----60-----61-----62-----63
// | | | | | | | |
// | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
// | | | | | | | |
// 48-----49-----50-----51-----52-----53-----54-----55
// | | | | | | | |
// | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
// | | | | | | | |
// 40-----41-----42-----43-----44-----45-----46-----47
// | | | | | | | |
// | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
// | | | | | | | |
// 32-----33-----34-----35-----36-----37-----38-----39
// | | | | | | | |
// | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
// | | | | | | | |
// 24-----25-----26-----27-----28-----29-----30-----31
// | | | | | | | |
// | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
// | | | | | | | |
// 16-----17-----18-----19-----20-----21-----22-----23
// | | | | | | | |
// | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
// | | | | | | | |
// 08-----09-----10-----11-----12-----13-----14-----15
// | | | | | | | |
// | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
// | | | | | | | |
// 00-----01-----02-----03-----04-----05-----06-----07
//
// the grid is distributed among the processes as follows:
// (index == process)
//
// case 1)
//
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 3---3---3---3---4---4---4---4
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 2---2---2---2---3---3---3---3
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 1---1---1---1---2---2---2---2
// | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
// 0---0---0---0---1---1---1---1
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
//
// case 2)
//
// 0---0---1---1---3---3---4---4
// | 0 | 1 | 1 | 3 | 3 | 4 | 4 |
// 0---0---1---1---3---3---4---4
// | 0 | 1 | 1 | 3 | 3 | 4 | 4 |
// 0---0---1---1---3---3---4---4
// | 0 | 1 | 1 | 3 | 3 | 4 | 4 |
// 0---0---1---1---3---3---4---4
// | 0 | 0 | 1 | 3 | 3 | 4 | 4 |
// 0---0---1---1---2---2---4---4
// | 0 | 0 | 1 | 2 | 2 | 4 | 4 |
// 0---0---0---1---2---2---4---4
// | 0 | 0 | 1 | 2 | 2 | 4 | 4 |
// 0---0---0---1---2---2---4---4
// | 0 | 0 | 1 | 2 | 2 | 4 | 4 |
// 0---0---0---1---2---2---4---4
//
//---------------
// setup
//---------------
enum {NUM_SRC_DECOMP = 2};
size_t num_points[NUM_SRC_DECOMP][num_reorder_types];
double * tgt_fields[NUM_SRC_DECOMP][num_reorder_types];
int is_tgt = split_comm_size == 1;
for (int case_idx = 0; case_idx < NUM_SRC_DECOMP; ++case_idx) {
double coordinates_x[NUM_SRC_DECOMP][2][10] =
{{{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}},
{{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}}};
double coordinates_y[NUM_SRC_DECOMP][2][10] =
{{{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}},
{{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}}};
size_t const num_cells[2][2] = {{7,7}, {9,9}};
size_t local_start[NUM_SRC_DECOMP][2][5][2] =
{{{{0,0},{0,2},{0,3},{4,2},{0,5}}, {{0,0}}},
{{{0,0},{1,0},{3,0},{3,3},{5,0}}, {{0,0}}}};
size_t local_count[NUM_SRC_DECOMP][2][5][2] =
{{{{7,2},{4,1},{4,2},{3,3},{7,2}}, {{9,9}}},
{{{2,7},{2,7},{2,3},{2,4},{2,7}}, {{9,9}}}};
int with_halo = 0;
for (size_t i = 0; i < 10; ++i) {
coordinates_x[case_idx][1][i] = 2.5 + 2.0 * ((double)i / 9.0);
coordinates_y[case_idx][1][i] = 2.5 + 2.0 * ((double)i / 9.0);
}
for (size_t i = 0; i <= num_cells[is_tgt][0]; ++i)
coordinates_x[case_idx][is_tgt][i] *= YAC_RAD;
for (size_t i = 0; i <= num_cells[is_tgt][1]; ++i)
coordinates_y[case_idx][is_tgt][i] *= YAC_RAD;
struct yac_basic_grid_data grid_data =
yac_generate_basic_grid_data_reg2d(
coordinates_x[case_idx][is_tgt], coordinates_y[case_idx][is_tgt],
num_cells[is_tgt], local_start[case_idx][is_tgt][split_comm_rank],
local_count[case_idx][is_tgt][split_comm_rank], with_halo);
struct yac_basic_grid * grids[2] =
{yac_basic_grid_new(grid_names[is_tgt], grid_data),
yac_basic_grid_empty_new(grid_names[is_tgt^1])};
struct yac_dist_grid_pair * grid_pair =
yac_dist_grid_pair_new(grids[0], grids[1], MPI_COMM_WORLD);
struct yac_interp_field src_fields[] =
{{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX}};
size_t num_src_fields = sizeof(src_fields) / sizeof(src_fields[0]);
struct yac_interp_field tgt_field =
{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX};
struct yac_interp_grid * interp_grid =
yac_interp_grid_new(grid_pair, grid_names[0], grid_names[1],
num_src_fields, src_fields, tgt_field);
struct interp_method * method_stack[] =
{yac_interp_method_hcsbb_new(),
yac_interp_method_fixed_new(-1.0), NULL};
struct yac_interp_weights * weights =
yac_interp_method_do_search(method_stack, interp_grid);
for (size_t i = 0; i < num_reorder_types; ++i) {
struct yac_interpolation * interpolation =
yac_interp_weights_get_interpolation(
weights, reorder_types[i], 1, YAC_FRAC_MASK_NO_VALUE, 1.0, 0.0);
// check generated interpolation
{
double * src_field = NULL;
double ** src_fields = &src_field;
double * tgt_field = NULL;
double * ref_tgt_field = NULL;
if (is_tgt) {
tgt_field = xmalloc(grid_data.num_vertices * sizeof(*tgt_field));
ref_tgt_field =
xmalloc(grid_data.num_vertices * sizeof(*ref_tgt_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, 100, ref_tgt_field);
for (size_t i = 0; i < 100; ++i) tgt_field[i] = -1;
num_points[case_idx][i] = grid_data.num_vertices;
tgt_fields[case_idx][i] = tgt_field;
} else {
src_field = xmalloc(grid_data.num_vertices * sizeof(*src_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, grid_data.num_vertices, src_field);
}
yac_interpolation_execute(interpolation, &src_fields, &tgt_field);
if (is_tgt)
for (size_t i = 0; i < 100; ++i)
if (fabs(1.0 - ref_tgt_field[i] / tgt_field[i]) > 1e-2)
PUT_ERR("wrong interpolation result");
free(ref_tgt_field);
free(src_field);
}
yac_interpolation_delete(interpolation);
}
yac_interp_weights_delete(weights);
yac_interp_method_delete(method_stack);
yac_interp_grid_delete(interp_grid);
yac_dist_grid_pair_delete(grid_pair);
yac_basic_grid_delete(grids[1]);
yac_basic_grid_delete(grids[0]);
}
if (is_tgt) {
for (int case_idx = 0; case_idx < NUM_SRC_DECOMP; ++case_idx) {
for (int reorder_type = 0; reorder_type < num_reorder_types;
++reorder_type) {
if (num_points[0][0] != num_points[case_idx][reorder_type])
PUT_ERR("error in test setup");
for (size_t i = 0; i < num_points[0][0]; ++i)
if (tgt_fields[0][0][i] != tgt_fields[case_idx][reorder_type][i])
PUT_ERR("interpolation results are not "
"decomposition-independant");
}
}
for (int case_idx = 0; case_idx < NUM_SRC_DECOMP; ++case_idx)
for (int reorder_type = 0; reorder_type < num_reorder_types;
++reorder_type) free(tgt_fields[case_idx][reorder_type]);
}
}
{ // parallel interpolation process
// corner and cell ids for a 7 x 7 grid
// 56-----57-----58-----59-----60-----61-----62-----63
// | | | | | | | |
// | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
// | | | | | | | |
// 48-----49-----50-----51-----52-----53-----54-----55
// | | | | | | | |
// | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
// | | | | | | | |
// 40-----41-----42-----43-----44-----45-----46-----47
// | | | | | | | |
// | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
// | | | | | | | |
// 32-----33-----34-----35-----36-----37-----38-----39
// | | | | | | | |
// | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
// | | | | | | | |
// 24-----25-----26-----27-----28-----29-----30-----31
// | | | | | | | |
// | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
// | | | | | | | |
// 16-----17-----18-----19-----20-----21-----22-----23
// | | | | | | | |
// | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
// | | | | | | | |
// 08-----09-----10-----11-----12-----13-----14-----15
// | | | | | | | |
// | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
// | | | | | | | |
// 00-----01-----02-----03-----04-----05-----06-----07
//
// the grid is distributed among the processes as follows:
// (index == process)
//
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 3---3---3---3---4---4---4---4
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 2---2---2---2---3---3---3---3
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 1---1---1---1---2---2---2---2
// | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
// 0---0---0---0---1---1---1---1
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
//
//---------------
// setup
//---------------
int is_tgt = split_comm_size == 1;
double coordinates_x[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
double coordinates_y[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
size_t const num_cells[2][2] = {{7,7}, {9,9}};
size_t local_start[2][5][2] = {{{0,0},{0,2},{0,3},{4,2},{0,5}}, {{0,0}}};
size_t local_count[2][5][2] = {{{7,2},{4,1},{4,2},{3,3},{7,2}}, {{9,9}}};
int with_halo = 0;
for (size_t i = 0; i < 10; ++i) {
coordinates_x[1][i] = 2.0 + 3.0 * ((double)i / 9.0);
coordinates_y[1][i] = 2.0 + 3.0 * ((double)i / 9.0);
}
for (size_t i = 0; i <= num_cells[is_tgt][0]; ++i)
coordinates_x[is_tgt][i] *= YAC_RAD;
for (size_t i = 0; i <= num_cells[is_tgt][1]; ++i)
coordinates_y[is_tgt][i] *= YAC_RAD;
struct yac_basic_grid_data grid_data =
yac_generate_basic_grid_data_reg2d(
coordinates_x[is_tgt], coordinates_y[is_tgt], num_cells[is_tgt],
local_start[is_tgt][split_comm_rank],
local_count[is_tgt][split_comm_rank], with_halo);
struct yac_basic_grid * grids[2] =
{yac_basic_grid_new(grid_names[is_tgt], grid_data),
yac_basic_grid_empty_new(grid_names[is_tgt^1])};
struct yac_dist_grid_pair * grid_pair =
yac_dist_grid_pair_new(grids[0], grids[1], MPI_COMM_WORLD);
struct yac_interp_field src_fields[] =
{{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX}};
size_t num_src_fields = sizeof(src_fields) / sizeof(src_fields[0]);
struct yac_interp_field tgt_field =
{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX};
struct yac_interp_grid * interp_grid =
yac_interp_grid_new(grid_pair, grid_names[0], grid_names[1],
num_src_fields, src_fields, tgt_field);
struct interp_method * method_stack[] =
{yac_interp_method_hcsbb_new(),
yac_interp_method_fixed_new(-1.0), NULL};
struct yac_interp_weights * weights =
yac_interp_method_do_search(method_stack, interp_grid);
for (size_t i = 0; i < num_reorder_types; ++i) {
struct yac_interpolation * interpolation =
yac_interp_weights_get_interpolation(
weights, reorder_types[i], 1, YAC_FRAC_MASK_NO_VALUE, 1.0, 0.0);
// check generated interpolation
{
double * src_field = NULL;
double ** src_fields = &src_field;
double * tgt_field = NULL;
double * ref_tgt_field = NULL;
if (is_tgt) {
tgt_field = xmalloc(grid_data.num_vertices * sizeof(*tgt_field));
ref_tgt_field =
xmalloc(grid_data.num_vertices * sizeof(*ref_tgt_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, 100, ref_tgt_field);
for (size_t i = 0; i < 100; ++i) tgt_field[i] = -1;
} else {
src_field = xmalloc(grid_data.num_vertices * sizeof(*src_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, grid_data.num_vertices, src_field);
}
yac_interpolation_execute(interpolation, &src_fields, &tgt_field);
if (is_tgt)
for (size_t i = 0; i < 100; ++i)
if (fabs(1.0 - ref_tgt_field[i] / tgt_field[i]) > 1e-2)
PUT_ERR("wrong interpolation result");
free(ref_tgt_field);
free(tgt_field);
free(src_field);
}
yac_interpolation_delete(interpolation);
}
yac_interp_weights_delete(weights);
yac_interp_method_delete(method_stack);
yac_interp_grid_delete(interp_grid);
yac_dist_grid_pair_delete(grid_pair);
yac_basic_grid_delete(grids[1]);
yac_basic_grid_delete(grids[0]);
}
{ // parallel interpolation process
// (source point location is at the cell centers)
// corner and cell ids for a 7 x 7 grid
// 56-----57-----58-----59-----60-----61-----62-----63
// | | | | | | | |
// | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
// | | | | | | | |
// 48-----49-----50-----51-----52-----53-----54-----55
// | | | | | | | |
// | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
// | | | | | | | |
// 40-----41-----42-----43-----44-----45-----46-----47
// | | | | | | | |
// | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
// | | | | | | | |
// 32-----33-----34-----35-----36-----37-----38-----39
// | | | | | | | |
// | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
// | | | | | | | |
// 24-----25-----26-----27-----28-----29-----30-----31
// | | | | | | | |
// | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
// | | | | | | | |
// 16-----17-----18-----19-----20-----21-----22-----23
// | | | | | | | |
// | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
// | | | | | | | |
// 08-----09-----10-----11-----12-----13-----14-----15
// | | | | | | | |
// | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
// | | | | | | | |
// 00-----01-----02-----03-----04-----05-----06-----07
//
// the grid is distributed among the processes as follows:
// (index == process)
//
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 3---3---3---3---4---4---4---4
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 2---2---2---2---3---3---3---3
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 1---1---1---1---2---2---2---2
// | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
// 0---0---0---0---1---1---1---1
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
//
//---------------
// setup
//---------------
int is_tgt = split_comm_size == 1;
double coordinates_x[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
double coordinates_y[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
size_t const num_cells[2][2] = {{7,7}, {9,9}};
size_t local_start[2][5][2] = {{{0,0},{0,2},{0,3},{4,2},{0,5}}, {{0,0}}};
size_t local_count[2][5][2] = {{{7,2},{4,1},{4,2},{3,3},{7,2}}, {{9,9}}};
int with_halo = 0;
for (size_t i = 0; i < 10; ++i) {
coordinates_x[1][i] = 2.0 + 3.0 * ((double)i / 9.0);
coordinates_y[1][i] = 2.0 + 3.0 * ((double)i / 9.0);
}
for (size_t i = 0; i <= num_cells[is_tgt][0]; ++i)
coordinates_x[is_tgt][i] *= YAC_RAD;
for (size_t i = 0; i <= num_cells[is_tgt][1]; ++i)
coordinates_y[is_tgt][i] *= YAC_RAD;
struct yac_basic_grid_data grid_data =
yac_generate_basic_grid_data_reg2d(
coordinates_x[is_tgt], coordinates_y[is_tgt], num_cells[is_tgt],
local_start[is_tgt][split_comm_rank],
local_count[is_tgt][split_comm_rank], with_halo);
yac_coordinate_pointer src_point_coordinates = NULL;
if (!is_tgt) {
src_point_coordinates =
xmalloc(grid_data.num_cells * sizeof(*src_point_coordinates));
for (size_t i = 0; i < grid_data.num_cells; ++i) {
double * middle_point = src_point_coordinates[i];
for (size_t k = 0; k < 3; ++k) middle_point[k] = 0.0;
size_t * curr_vertices =
grid_data.cell_to_vertex + grid_data.cell_to_vertex_offsets[i];
size_t curr_num_vertices = grid_data.num_vertices_per_cell[i];
for (size_t j = 0; j < curr_num_vertices; ++j) {
double * curr_vertex_coord =
grid_data.vertex_coordinates[curr_vertices[j]];
for (size_t k = 0; k < 3; ++k)
middle_point[k] += curr_vertex_coord[k];
}
normalise_vector(middle_point);
}
}
struct yac_basic_grid * grids[2] =
{yac_basic_grid_new(grid_names[is_tgt], grid_data),
yac_basic_grid_empty_new(grid_names[is_tgt^1])};
if (!is_tgt)
yac_basic_grid_add_coordinates_nocpy(
grids[0], YAC_LOC_CELL, src_point_coordinates);
struct yac_dist_grid_pair * grid_pair =
yac_dist_grid_pair_new(grids[0], grids[1], MPI_COMM_WORLD);
struct yac_interp_field src_fields[] =
{{.location = YAC_LOC_CELL, .coordinates_idx = 0, .masks_idx = SIZE_MAX}};
size_t num_src_fields = sizeof(src_fields) / sizeof(src_fields[0]);
struct yac_interp_field tgt_field =
{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX};
struct yac_interp_grid * interp_grid =
yac_interp_grid_new(grid_pair, grid_names[0], grid_names[1],
num_src_fields, src_fields, tgt_field);
struct interp_method * method_stack[] =
{yac_interp_method_hcsbb_new(),
yac_interp_method_fixed_new(-1.0), NULL};
struct yac_interp_weights * weights =
yac_interp_method_do_search(method_stack, interp_grid);
for (size_t i = 0; i < num_reorder_types; ++i) {
struct yac_interpolation * interpolation =
yac_interp_weights_get_interpolation(
weights, reorder_types[i], 1, YAC_FRAC_MASK_NO_VALUE, 1.0, 0.0);
// check generated interpolation
{
double * src_field = NULL;
double ** src_fields = &src_field;
double * tgt_field = NULL;
double * ref_tgt_field = NULL;
if (is_tgt) {
tgt_field = xmalloc(grid_data.num_vertices * sizeof(*tgt_field));
ref_tgt_field =
xmalloc(grid_data.num_vertices * sizeof(*ref_tgt_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, 100, ref_tgt_field);
for (size_t i = 0; i < 100; ++i) tgt_field[i] = -1;
} else {
src_field = xmalloc(grid_data.num_cells * sizeof(*src_field));
compute_field_data_XYZ(
src_point_coordinates, grid_data.num_cells, src_field);
}
yac_interpolation_execute(interpolation, &src_fields, &tgt_field);
if (is_tgt)
for (size_t i = 0; i < 100; ++i)
if (fabs(1.0 - ref_tgt_field[i] / tgt_field[i]) > 1e-2)
PUT_ERR("wrong interpolation result");
free(ref_tgt_field);
free(tgt_field);
free(src_field);
}
yac_interpolation_delete(interpolation);
}
yac_interp_weights_delete(weights);
yac_interp_method_delete(method_stack);
yac_interp_grid_delete(interp_grid);
yac_dist_grid_pair_delete(grid_pair);
yac_basic_grid_delete(grids[1]);
yac_basic_grid_delete(grids[0]);
}
{ // parallel interpolation process
// (source point location is at the cell centers)
// (target grid contains cells that are not covered by any source cell)
// corner and cell ids for a 7 x 7 grid
// 56-----57-----58-----59-----60-----61-----62-----63
// | | | | | | | |
// | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
// | | | | | | | |
// 48-----49-----50-----51-----52-----53-----54-----55
// | | | | | | | |
// | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
// | | | | | | | |
// 40-----41-----42-----43-----44-----45-----46-----47
// | | | | | | | |
// | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
// | | | | | | | |
// 32-----33-----34-----35-----36-----37-----38-----39
// | | | | | | | |
// | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
// | | | | | | | |
// 24-----25-----26-----27-----28-----29-----30-----31
// | | | | | | | |
// | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
// | | | | | | | |
// 16-----17-----18-----19-----20-----21-----22-----23
// | | | | | | | |
// | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
// | | | | | | | |
// 08-----09-----10-----11-----12-----13-----14-----15
// | | | | | | | |
// | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
// | | | | | | | |
// 00-----01-----02-----03-----04-----05-----06-----07
//
// the grid is distributed among the processes as follows:
// (index == process)
//
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 4---4---4---4---4---4---4---4
// | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
// 3---3---3---3---4---4---4---4
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 2---2---2---2---3---3---3---3
// | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
// 1---1---1---1---2---2---2---2
// | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
// 0---0---0---0---1---1---1---1
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
// | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
// 0---0---0---0---0---0---0---0
//
//---------------
// setup
//---------------
int is_tgt = split_comm_size == 1;
double coordinates_x[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
double coordinates_y[2][10] = {{0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0},{-1.0}};
size_t const num_cells[2][2] = {{7,7}, {9,9}};
size_t local_start[2][5][2] = {{{0,0},{0,2},{0,3},{4,2},{0,5}}, {{0,0}}};
size_t local_count[2][5][2] = {{{7,2},{4,1},{4,2},{3,3},{7,2}}, {{9,9}}};
int with_halo = 0;
for (size_t i = 0; i < 10; ++i) {
coordinates_x[1][i] = 4.0 + 4.0 * ((double)i / 9.0);
coordinates_y[1][i] = 4.0 + 4.0 * ((double)i / 9.0);
}
for (size_t i = 0; i <= num_cells[is_tgt][0]; ++i)
coordinates_x[is_tgt][i] *= YAC_RAD;
for (size_t i = 0; i <= num_cells[is_tgt][1]; ++i)
coordinates_y[is_tgt][i] *= YAC_RAD;
struct yac_basic_grid_data grid_data =
yac_generate_basic_grid_data_reg2d(
coordinates_x[is_tgt], coordinates_y[is_tgt], num_cells[is_tgt],
local_start[is_tgt][split_comm_rank],
local_count[is_tgt][split_comm_rank], with_halo);
yac_coordinate_pointer src_point_coordinates = NULL;
if (!is_tgt) {
src_point_coordinates =
xmalloc(grid_data.num_cells * sizeof(*src_point_coordinates));
for (size_t i = 0; i < grid_data.num_cells; ++i) {
double * middle_point = src_point_coordinates[i];
for (size_t k = 0; k < 3; ++k) middle_point[k] = 0.0;
size_t * curr_vertices =
grid_data.cell_to_vertex + grid_data.cell_to_vertex_offsets[i];
size_t curr_num_vertices = grid_data.num_vertices_per_cell[i];
for (size_t j = 0; j < curr_num_vertices; ++j) {
double * curr_vertex_coord =
grid_data.vertex_coordinates[curr_vertices[j]];
for (size_t k = 0; k < 3; ++k)
middle_point[k] += curr_vertex_coord[k];
}
normalise_vector(middle_point);
}
}
struct yac_basic_grid * grids[2] =
{yac_basic_grid_new(grid_names[is_tgt], grid_data),
yac_basic_grid_empty_new(grid_names[is_tgt^1])};
if (!is_tgt)
yac_basic_grid_add_coordinates_nocpy(
grids[0], YAC_LOC_CELL, src_point_coordinates);
struct yac_dist_grid_pair * grid_pair =
yac_dist_grid_pair_new(grids[0], grids[1], MPI_COMM_WORLD);
struct yac_interp_field src_fields[] =
{{.location = YAC_LOC_CELL, .coordinates_idx = 0, .masks_idx = SIZE_MAX}};
size_t num_src_fields = sizeof(src_fields) / sizeof(src_fields[0]);
struct yac_interp_field tgt_field =
{.location = YAC_LOC_CORNER, .coordinates_idx = SIZE_MAX, .masks_idx = SIZE_MAX};
struct yac_interp_grid * interp_grid =
yac_interp_grid_new(grid_pair, grid_names[0], grid_names[1],
num_src_fields, src_fields, tgt_field);
struct interp_method * method_stack[] =
{yac_interp_method_hcsbb_new(),
yac_interp_method_fixed_new(-1.0), NULL};
struct yac_interp_weights * weights =
yac_interp_method_do_search(method_stack, interp_grid);
for (size_t i = 0; i < num_reorder_types; ++i) {
struct yac_interpolation * interpolation =
yac_interp_weights_get_interpolation(
weights, reorder_types[i], 1, YAC_FRAC_MASK_NO_VALUE, 1.0, 0.0);
// check generated interpolation
{
double * src_field = NULL;
double ** src_fields = &src_field;
double * tgt_field = NULL;
double * ref_tgt_field = NULL;
if (is_tgt) {
int is_outside_src_grid[] = {
0,0,0,0,0,0,1,1,1,1,
0,0,0,0,0,0,1,1,1,1,
0,0,0,0,0,0,1,1,1,1,
0,0,0,0,0,0,1,1,1,1,
0,0,0,0,0,0,1,1,1,1,
0,0,0,0,0,0,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1};
tgt_field = xmalloc(grid_data.num_vertices * sizeof(*tgt_field));
ref_tgt_field =
xmalloc(grid_data.num_vertices * sizeof(*ref_tgt_field));
compute_field_data_XYZ(
grid_data.vertex_coordinates, 100, ref_tgt_field);
for (size_t i = 0; i < grid_data.num_vertices; ++i)
if (is_outside_src_grid[grid_data.vertex_ids[i]])
ref_tgt_field[i] = -1.0;
for (size_t i = 0; i < 100; ++i) tgt_field[i] = -2.0;
} else {
src_field = xmalloc(grid_data.num_cells * sizeof(*src_field));
compute_field_data_XYZ(
src_point_coordinates, grid_data.num_cells, src_field);
}
yac_interpolation_execute(interpolation, &src_fields, &tgt_field);
if (is_tgt)
for (size_t i = 0; i < 100; ++i)
if (fabs(1.0 - ref_tgt_field[i] / tgt_field[i]) > 1e-2)
PUT_ERR("wrong interpolation result");
free(ref_tgt_field);
free(tgt_field);
free(src_field);
}
yac_interpolation_delete(interpolation);
}
yac_interp_weights_delete(weights);
yac_interp_method_delete(method_stack);
yac_interp_grid_delete(interp_grid);
yac_dist_grid_pair_delete(grid_pair);
yac_basic_grid_delete(grids[1]);
yac_basic_grid_delete(grids[0]);
}
MPI_Comm_free(&split_comm);
xt_finalize();
MPI_Finalize();
return TEST_EXIT_CODE;
}
#if defined __INTEL_COMPILER
#pragma intel optimization_level 0
#elif defined _CRAYC
#pragma _CRI noopt
#endif
static void compute_field_data_XYZ(
double (*vertices)[3], size_t num_vertices, double * f_v) {
for (size_t i = 0; i < num_vertices; ++i) {
double x = vertices[i][0];
double y = vertices[i][1];
double z = vertices[i][2];
// f = 1 + x^8 + e^(2y^3) + e^(2x^2) + 10xyz
f_v[i] = 1.0 + pow(x, 8.0);
f_v[i] += exp(2.0*y*y*y);
f_v[i] += exp(2.0*x*x) + 10.0*x*y*z;
// f = x^3 + 3.0 * x*y^2 + 5 * x*y*z
// f_v[i] = x*x*x + 3.0*x*y*y + 5.0*x*y*z + 1.0;
// f_v[i] = 1.0;
}
}
yac_basic_grid_new
struct yac_basic_grid * yac_basic_grid_new(char const *name, struct yac_basic_grid_data grid_data)
Definition basic_grid.c:45
yac_basic_grid_add_coordinates_nocpy
size_t yac_basic_grid_add_coordinates_nocpy(struct yac_basic_grid *grid, enum yac_location location, yac_coordinate_pointer coordinates)
Definition basic_grid.c:203
yac_basic_grid_empty_new
struct yac_basic_grid * yac_basic_grid_empty_new(char const *name)
Definition basic_grid.c:58
yac_basic_grid_delete
void yac_basic_grid_delete(struct yac_basic_grid *grid)
Definition basic_grid.c:65
yac_dist_grid_pair_delete
void yac_dist_grid_pair_delete(struct yac_dist_grid_pair *grid_pair)
Definition dist_grid.c:2957
yac_dist_grid_pair_new
struct yac_dist_grid_pair * yac_dist_grid_pair_new(struct yac_basic_grid *grid_a, struct yac_basic_grid *grid_b, MPI_Comm comm)
Definition dist_grid.c:2714
YAC_RAD
#define YAC_RAD
Definition geometry.h:30
normalise_vector
static void normalise_vector(double v[])
Definition geometry.h:689
yac_interp_grid_delete
void yac_interp_grid_delete(struct yac_interp_grid *interp_grid)
Definition interp_grid.c:567
yac_interp_grid_new
struct yac_interp_grid * yac_interp_grid_new(struct yac_dist_grid_pair *grid_pair, char const *src_grid_name, char const *tgt_grid_name, size_t num_src_fields, struct yac_interp_field const *src_fields, struct yac_interp_field const tgt_field)
Definition interp_grid.c:31
yac_interp_method_delete
void yac_interp_method_delete(struct interp_method **method)
Definition interp_method.c:46
yac_interp_method_do_search
struct yac_interp_weights * yac_interp_method_do_search(struct interp_method **method, struct yac_interp_grid *interp_grid)
Definition interp_method.c:12
interp_method.h
yac_interp_method_fixed_new
struct interp_method * yac_interp_method_fixed_new(double value)
Definition interp_method_fixed.c:48
interp_method_fixed.h
yac_interp_method_hcsbb_new
struct interp_method * yac_interp_method_hcsbb_new()
Definition interp_method_hcsbb.c:2239
interp_method_hcsbb.h
yac_interp_weights_get_interpolation
struct yac_interpolation * yac_interp_weights_get_interpolation(struct yac_interp_weights *weights, enum yac_interp_weights_reorder_type reorder, size_t collection_size, double frac_mask_fallback_value, double scaling_factor, double scaling_summand)
Definition interp_weights.c:3699
yac_interp_weights_delete
void yac_interp_weights_delete(struct yac_interp_weights *weights)
Definition interp_weights.c:4784
yac_interp_weights_reorder_type
yac_interp_weights_reorder_type
Definition interp_weights.h:18
YAC_MAPPING_ON_TGT
@ YAC_MAPPING_ON_TGT
weights will be applied at target processes
Definition interp_weights.h:20
YAC_MAPPING_ON_SRC
@ YAC_MAPPING_ON_SRC
weights will be appied at source processes
Definition interp_weights.h:19
yac_interpolation_execute
void yac_interpolation_execute(struct yac_interpolation *interp, double ***src_fields, double **tgt_field)
Definition interpolation.c:226
yac_interpolation_delete
void yac_interpolation_delete(struct yac_interpolation *interp)
Definition interpolation.c:344
YAC_FRAC_MASK_NO_VALUE
double const YAC_FRAC_MASK_NO_VALUE
Definition interpolation.c:23
YAC_LOC_CORNER
@ YAC_LOC_CORNER
Definition location.h:15
YAC_LOC_CELL
@ YAC_LOC_CELL
Definition location.h:14
yac_replay.y
y
Definition yac_replay.py:57
xmalloc
#define xmalloc(size)
Definition ppm_xfuncs.h:66
interp_method
Definition interp_method_internal.h:22
yac_basic_grid_data
Definition basic_grid_data.h:15
yac_basic_grid_data::vertex_coordinates
yac_coordinate_pointer vertex_coordinates
Definition basic_grid_data.h:16
yac_basic_grid_data::cell_to_vertex
size_t * cell_to_vertex
Definition basic_grid_data.h:28
yac_basic_grid_data::num_cells
size_t num_cells
Definition basic_grid_data.h:20
yac_basic_grid_data::num_vertices
size_t num_vertices
Definition basic_grid_data.h:21
yac_basic_grid_data::vertex_ids
yac_int * vertex_ids
Definition basic_grid_data.h:18
yac_basic_grid_data::cell_to_vertex_offsets
size_t * cell_to_vertex_offsets
Definition basic_grid_data.h:29
yac_basic_grid_data::num_vertices_per_cell
int * num_vertices_per_cell
Definition basic_grid_data.h:26
yac_basic_grid
Definition basic_grid.c:12
yac_dist_grid_pair
Definition dist_grid.c:110
yac_interp_field
Definition basic_grid.h:17
yac_interp_field::location
enum yac_location location
Definition basic_grid.h:18
yac_interp_grid
Definition interp_grid.c:22
yac_interp_grid::tgt_field
struct yac_interp_field tgt_field
Definition interp_grid.c:26
yac_interp_grid::num_src_fields
size_t num_src_fields
Definition interp_grid.c:27
yac_interp_grid::grid_pair
struct yac_dist_grid_pair * grid_pair
Definition interp_grid.c:25
yac_interp_grid::src_fields
struct yac_interp_field src_fields[]
Definition interp_grid.c:28
yac_interp_weights
Definition interp_weights.c:110
yac_interpolation
Definition interpolation.c:26
main
int main(int argc, char **argv)
Definition weights2vtk.c:147
num_points
static size_t num_points
Definition yac.c:121
grids
struct yac_basic_grid ** grids
Definition yac.c:114
yac_mpi.h
yac_coordinate_pointer
double(* yac_coordinate_pointer)[3]
Definition yac_types.h:19
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