read_icon_grid.c File Reference

#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include "read_icon_grid.h"
#include "utils_common.h"
#include "io_utils.h"
#include "geometry.h"
#include "read_grid.h"
#include <netcdf.h>

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Functions
static int *	get_icon_cell_mask (int ncid, size_t nbr_cells)
static void	get_icon_connect (int ncid, size_t nbr_cells, int **vertex_of_cell, size_t *nv)
void	yac_read_part_icon_grid_information (const char *filename, int *nbr_vertices, int *nbr_cells, int **num_vertices_per_cell, int **cell_to_vertex, double **x_vertices, double **y_vertices, double **x_cells, double **y_cells, int **global_cell_id, int **cell_mask, int **cell_core_mask, int **global_corner_id, int **corner_core_mask, int rank, int size)
void	yac_read_icon_grid_information (const char *filename, int *nbr_vertices, int *nbr_cells, int **num_vertices_per_cell, int **cell_to_vertex, double **x_vertices, double **y_vertices, double **x_cells, double **y_cells, int **cell_mask)
static int	partition_idx_from_element_idx (unsigned element_idx, unsigned num_elements, int num_partitions)
static void	convert_to_rad (int ncid, int varid, double *array, size_t count)
void	yac_read_icon_grid_information_parallel (const char *filename, MPI_Comm comm, int *nbr_vertices, int *nbr_cells, int **num_vertices_per_cell, int **cell_to_vertex, int **global_cell_ids, int **cell_owner, int **global_vertex_ids, int **vertex_owner, double **x_vertices, double **y_vertices, double **x_cells, double **y_cells, int **cell_msk)
void	yac_read_icon_grid_information_parallel_f2c (const char *filename, MPI_Fint comm, int *nbr_vertices, int *nbr_cells, int **num_vertices_per_cell, int **cell_to_vertex, int **global_cell_ids, int **cell_owner, int **global_vertex_ids, int **vertex_owner, double **x_vertices, double **y_vertices, double **x_cells, double **y_cells, int **cell_msk)
static int *	generate_simple_core_mask (size_t N)
static size_t *	generate_offsets (size_t N, int *counts)
struct yac_basic_grid_data	yac_read_icon_basic_grid_data_parallel (const char *filename, MPI_Comm comm)
struct yac_basic_grid *	yac_read_icon_basic_grid_parallel (char const *filename, char const *gridname, MPI_Comm comm)
struct yac_basic_grid *	yac_read_icon_basic_grid_parallel_f2c (char const *filename, char const *gridname, MPI_Fint comm)
struct yac_basic_grid_data	yac_read_icon_basic_grid_data (char const *filename)
struct yac_basic_grid *	yac_read_icon_basic_grid (char const *filename, char const *gridname)
void	yac_delete_icon_grid_data (int **cell_mask, int **global_cell_id, int **global_cell_id_rank, int **num_vertices_per_cell, int **global_corner_id, int **global_corner_id_rank, int **cell_to_vertex, double **x_cells, double **y_cells, double **x_vertices, double **y_vertices)

Function Documentation

convert_to_rad()

static void convert_to_rad ( int ncid, int varid, double * array, size_t count )

static

Definition at line 242 of file read_icon_grid.c.

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generate_offsets()

static size_t * generate_offsets ( size_t N, int * counts )

static

Definition at line 891 of file read_icon_grid.c.

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generate_simple_core_mask()

static int * generate_simple_core_mask ( size_t N )

static

Definition at line 885 of file read_icon_grid.c.

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get_icon_cell_mask()

static int * get_icon_cell_mask ( int ncid, size_t nbr_cells )

static

Definition at line 1522 of file read_icon_grid.c.

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get_icon_connect()

static void get_icon_connect ( int ncid, size_t nbr_cells, int ** vertex_of_cell, size_t * nv )

static

Definition at line 1560 of file read_icon_grid.c.

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partition_idx_from_element_idx()

static int partition_idx_from_element_idx ( unsigned element_idx, unsigned num_elements, int num_partitions )

inlinestatic

Definition at line 234 of file read_icon_grid.c.

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yac_delete_icon_grid_data()

void yac_delete_icon_grid_data	(	int **	cell_mask,
		int **	global_cell_id,
		int **	cell_core_mask,
		int **	num_vertices_per_cell,
		int **	global_corner_id,
		int **	corner_core_mask,
		int **	cell_to_vertex,
		double **	x_cells,
		double **	y_cells,
		double **	x_vertices,
		double **	y_vertices )

destroys remaining icon grid data

Parameters

[out]	cell_mask	mask for cells
[out]	global_cell_id	global cell IDs
[out]	cell_core_mask	cell core mask
[out]	num_vertices_per_cell	number of vertices per cell
[out]	global_corner_id	global corner IDs
[out]	corner_core_mask	corner core mask
[out]	cell_to_vertex	vertex indices for each cell
[out]	x_cells	longitudes of cell center
[out]	y_cells	latitudes of cell center
[out]	x_vertices	longitudes of vertices
[out]	y_vertices	latitudes of vertices

Examples

test_dummy_coupling2_c.c, and test_restart_c.c.

Definition at line 1593 of file read_icon_grid.c.

yac_read_icon_basic_grid()

struct yac_basic_grid * yac_read_icon_basic_grid	(	char const *	filename,
		char const *	gridname )

reads in an icon grid netcdf file and generates a struct basic_grid from it

Parameters

[in]	filename	name of the icon grid netcdf file
[in]	gridname	name of the grid

Returns

yac_basic_grid structure that contains the icon grid

Definition at line 1512 of file read_icon_grid.c.

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yac_read_icon_basic_grid_data()

struct yac_basic_grid_data yac_read_icon_basic_grid_data

(

char const *

filename

)

reads in an icon grid netcdf file and generates a struct yac_basic_grid_data from it

Parameters

[in]

filename

name of the icon grid netcdf file

Returns

basic_grid_data structure that contains the icon grid

Examples

test_generate_cubed_sphere.c, and test_read_icon.c.

Definition at line 1476 of file read_icon_grid.c.

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yac_read_icon_basic_grid_data_parallel()

struct yac_basic_grid_data yac_read_icon_basic_grid_data_parallel	(	const char *	filename,
		MPI_Comm	comm )

Examples

test_dist_grid_pair_parallel.c, test_interp_grid_parallel.c, test_interp_method_parallel.c, test_interp_weights_parallel.c, and test_read_icon_parallel.c.

Definition at line 901 of file read_icon_grid.c.

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yac_read_icon_basic_grid_parallel()

struct yac_basic_grid * yac_read_icon_basic_grid_parallel	(	char const *	filename,
		char const *	gridname,
		MPI_Comm	comm )

Definition at line 1459 of file read_icon_grid.c.

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yac_read_icon_basic_grid_parallel_f2c()

struct yac_basic_grid * yac_read_icon_basic_grid_parallel_f2c	(	char const *	filename,
		char const *	gridname,
		MPI_Fint	comm )

Definition at line 1468 of file read_icon_grid.c.

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yac_read_icon_grid_information()

void yac_read_icon_grid_information	(	const char *	filename,
		int *	num_vertices,
		int *	num_cells,
		int **	num_vertices_per_cell,
		int **	cell_to_vertex,
		double **	x_vertices,
		double **	y_vertices,
		double **	x_cells,
		double **	y_cells,
		int **	cell_mask )

reads in an icon grid netcdf file and return the grid information in a format that is supported by the YAC user interface.

Parameters

[in]	filename	name of the icon grid netcdf file
[out]	num_vertices	number of vertices in the grid
[out]	num_cells	number of cells in the grid
[out]	num_vertices_per_cell	number of vertices per cell
[out]	cell_to_vertex	vertex indices for each cell
[out]	x_vertices	longitudes of vertices
[out]	y_vertices	latitudes of vertices
[out]	x_cells	longitudes of cell center
[out]	y_cells	latitudes of cell center
[out]	cell_mask	mask for cells

Definition at line 181 of file read_icon_grid.c.

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yac_read_icon_grid_information_parallel()

void yac_read_icon_grid_information_parallel	(	const char *	filename,
		MPI_Comm	comm,
		int *	num_vertices,
		int *	num_cells,
		int **	num_vertices_per_cell,
		int **	cell_to_vertex,
		int **	global_cell_ids,
		int **	cell_owner,
		int **	global_vertex_ids,
		int **	vertex_owner,
		double **	x_vertices,
		double **	y_vertices,
		double **	x_cells,
		double **	y_cells,
		int **	cell_mask )

reads in an icon grid netcdf file and return the grid information in a format that is supported by the YAC user interface. The reading is done in parallel and a basic domain decomposition is applied.

Parameters

[in]	filename	name of the icon grid netcdf file
[in]	comm	MPI communicator containing all proceses that will get a part of the grid
[out]	num_vertices	number of vertices in the local part of the grid
[out]	num_cells	number of cells in the local part of the grid
[out]	num_vertices_per_cell	number of vertices per cell
[out]	cell_to_vertex	vertex indices for each cell
[out]	global_cell_ids	global ids of local cells (core and halo cells)
[out]	cell_owner	owner of each cell (locally owned cells are marked with -1)
[out]	global_vertex_ids	global ids of local vertices (core and halo vertices)
[out]	vertex_owner	owner of each vertex (locally owned vertices are marked with -1)
[out]	x_vertices	longitudes of vertices
[out]	y_vertices	latitudes of vertices
[out]	x_cells	longitudes of cell center
[out]	y_cells	latitudes of cell center
[out]	cell_mask	mask for cells

Examples

test_read_icon_parallel.c.

Definition at line 248 of file read_icon_grid.c.

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yac_read_icon_grid_information_parallel_f2c()

void yac_read_icon_grid_information_parallel_f2c	(	const char *	filename,
		MPI_Fint	comm,
		int *	nbr_vertices,
		int *	nbr_cells,
		int **	num_vertices_per_cell,
		int **	cell_to_vertex,
		int **	global_cell_ids,
		int **	cell_owner,
		int **	global_vertex_ids,
		int **	vertex_owner,
		double **	x_vertices,
		double **	y_vertices,
		double **	x_cells,
		double **	y_cells,
		int **	cell_msk )

Definition at line 871 of file read_icon_grid.c.

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yac_read_part_icon_grid_information()

void yac_read_part_icon_grid_information	(	const char *	filename,
		int *	num_vertices,
		int *	num_cells,
		int **	num_vertices_per_cell,
		int **	cell_to_vertex,
		double **	x_vertices,
		double **	y_vertices,
		double **	x_cells,
		double **	y_cells,
		int **	global_cell_id,
		int **	cell_mask,
		int **	cell_core_mask,
		int **	global_corner_id,
		int **	corner_core_mask,
		int	rank,
		int	size )

reads in an icon grid netcdf file and return the grid information in a format that is supported by the YAC user interface.

Parameters

[in]	filename	name of the icon grid netcdf file
[out]	num_vertices	number of vertices in the grid
[out]	num_cells	number of cells in the grid
[out]	num_vertices_per_cell	number of vertices per cell
[out]	cell_to_vertex	vertex indices for each cell
[out]	x_vertices	longitudes of vertices
[out]	y_vertices	latitudes of vertices
[out]	x_cells	longitudes of cell center
[out]	y_cells	latitudes of cell center
[out]	global_cell_id	global cell IDs
[out]	cell_mask	mask for cells
[out]	cell_core_mask	cell core mask
[out]	global_corner_id	global corner IDs
[out]	corner_core_mask	corner core mask
[out]	rank	local MPI rank
[out]	size	number of MPI ranks

Examples

test_dummy_coupling2_c.c, test_dummy_coupling3_c.c, and test_restart_c.c.

Definition at line 28 of file read_icon_grid.c.

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