1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
Copyright 2004-2018, UCAR/Unidata
See COPYRIGHT file for copying and redistribution conditions.
This is part of netCDF.
This program also takes a long time to run - it writes some data in
a very large file, and then reads it all back to be sure it's
correct.
This program is an add-on test to check very large 64-bit offset
files (8 GB, so make sure you have the disk space!).
Ed Hartnett, Ward Fisher
*/
#include <config.h>
#include <nc_tests.h>
#include <stdio.h>
#include <stdlib.h>
#include <netcdf.h>
#define FILE_NAME "large_files.nc"
#define NUMRECS 2
#define I_LEN 4106
#define J_LEN 1023
#define K_LEN 1023
#define N_LEN 2
static void
check_err(const int stat, const int line, const char *file) {
if (stat != NC_NOERR) {
(void) fprintf(stderr, "line %d of %s: %s\n", line, file, nc_strerror(stat));
exit(1);
}
}
int
main(int argc, char **argv) {
int stat; /* return status */
char file_name[NC_MAX_NAME + 1];
int ncid; /* netCDF id */
int rec, i, j;
int x[] = {42, 21};
/* dimension ids */
int rec_dim;
int i_dim;
int j_dim;
int k_dim;
int n_dim;
/* dimension lengths */
size_t rec_len = NC_UNLIMITED;
size_t i_len = I_LEN;
size_t j_len = J_LEN;
size_t k_len = K_LEN;
size_t n_len = N_LEN;
/* variable ids */
int var1_id;
int x_id;
/* rank (number of dimensions) for each variable */
# define RANK_var1 3
# define RANK_x 2
/* variable shapes */
int var1_dims[RANK_var1];
int x_dims[RANK_x];
printf("\n*** Testing large files, slowly.\n");
sprintf(file_name, "%s/%s", TEMP_LARGE, FILE_NAME);
printf("*** Creating large file %s...", file_name);
/* enter define mode */
stat = nc_create(file_name, NC_CLOBBER|NC_64BIT_OFFSET, &ncid);
check_err(stat,__LINE__,__FILE__);
/* define dimensions */
stat = nc_def_dim(ncid, "rec", rec_len, &rec_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "i", i_len, &i_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "j", j_len, &j_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "k", k_len, &k_dim);
check_err(stat,__LINE__,__FILE__);
stat = nc_def_dim(ncid, "n", n_len, &n_dim);
check_err(stat,__LINE__,__FILE__);
/* define variables */
x_dims[0] = rec_dim;
x_dims[1] = n_dim;
stat = nc_def_var(ncid, "x", NC_INT, RANK_x, x_dims, &x_id);
check_err(stat,__LINE__,__FILE__);
var1_dims[0] = rec_dim;
var1_dims[1] = i_dim;
var1_dims[2] = j_dim;
/*var1_dims[3] = k_dim;*/
stat = nc_def_var(ncid, "var1", NC_FLOAT, RANK_var1, var1_dims, &var1_id);
check_err(stat,__LINE__,__FILE__);
/* don't initialize variables with fill values */
stat = nc_set_fill(ncid, NC_NOFILL, 0);
check_err(stat,__LINE__,__FILE__);
/* leave define mode */
stat = nc_enddef (ncid);
check_err(stat,__LINE__,__FILE__);
{ /* store var1 */
/*static float var1[J_LEN];*/
static float *var1 = NULL;
var1 = malloc(sizeof(float)*J_LEN);
if(!var1) {
printf("Malloc failed. This may happen on systems with < 4GB. THIS TEST DID NOT PASS, but is returning 0.\n");
return 0;
}
static size_t var1_start[RANK_var1] = {0, 0, 0};
static size_t var1_count[RANK_var1] = {1, 1, J_LEN};
static size_t x_start[RANK_x] = {0, 0};
static size_t x_count[RANK_x] = {1, N_LEN};
for(rec=0; rec<NUMRECS; rec++) {
var1_start[0] = rec;
x_start[0] = rec;
for(i=0; i<I_LEN; i++) {
for(j=0; j<J_LEN; j++) {
var1[j] = (float)(j + (rec+1) * i);
}
var1_start[1] = i;
stat = nc_put_vara_float(ncid, var1_id, var1_start, var1_count, var1);
check_err(stat,__LINE__,__FILE__);
}
x[0] += rec; x[1] += rec;
stat = nc_put_vara_int(ncid, x_id, x_start, x_count, x);
check_err(stat,__LINE__,__FILE__);
}
free(var1);
}
stat = nc_close(ncid);
check_err(stat,__LINE__,__FILE__);
printf("ok\n");
printf("*** Reading large file %s...", file_name);
stat = nc_open(file_name, NC_NOWRITE, &ncid);
check_err(stat,__LINE__,__FILE__);
{ /* read var1 */
/*static float avar1[J_LEN];*/
static float *avar1 = NULL;
avar1 = (float*)malloc(sizeof(float)*J_LEN);
static size_t avar1_start[RANK_var1] = {0, 0, 0};
static size_t avar1_count[RANK_var1] = {1, 1, J_LEN};
static size_t ax_start[RANK_x] = {0, 0};
static size_t ax_count[RANK_x] = {1, N_LEN};
for(rec=0; rec<NUMRECS; rec++) {
avar1_start[0] = rec;
ax_start[0] = rec;
for(i=0; i<I_LEN; i++) {
avar1_start[1] = i;
stat = nc_get_vara_float(ncid, var1_id, avar1_start, avar1_count, avar1);
check_err(stat,__LINE__,__FILE__);
for(j=0; j<J_LEN; j++)
{
if (avar1[j] != (float)(j + (rec + 1) * i)) {
printf("Error on read, var1[%d, %d, %d] = %g wrong, "
"should be %g !\n", rec, i, j, avar1[j], (float) (j + (rec + 1)* i));
return 1;
}
}
}
nc_get_vara_int(ncid, x_id, ax_start, ax_count, x);
if(x[0] != (42 + rec) || x[1] != (21+rec)) {
printf("Error on read, x[] = %d, %d\n", x[0], x[1]);
return 1;
}
}
free(avar1);
}
stat = nc_close(ncid);
check_err(stat,__LINE__,__FILE__);
printf("ok\n");
printf("*** Tests successful!\n");
/* Delete the file. */
(void) remove(file_name);
return 0;
}
|
