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
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "cctk.h"
/*@@
@routine IndexFloor
@date Fri Jan 7 10:34:29 2000
@author Gerd Lanfermann
@desc
For a given physical, global coordinate, IndexFloor returns
the closest lower grid index *locally* in the direction d,
which is owned by the grid path. (Ghostzone are not owned!)
Other return values:
-1 : gridindex not on this gridpatch
-3 : coordinate is outside global grid
This routine and the Fortran wrapper are Fortran/C index aware.
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
int IndexFloor(cGH *GH, CCTK_REAL coord_value, int d)
{
int ierr,index_low,idummy,ugs,lgs;
char *message;
CCTK_REAL cmin,cmax;
if (d==0)
CCTK_CoordRange(GH,&cmin,&cmax,"x");
else if (d==1)
CCTK_CoordRange(GH,&cmin,&cmax,"y");
else if (d==2)
CCTK_CoordRange(GH,&cmin,&cmax,"z");
else
CCTK_WARN(0,"IndexFloor: dimension is not valid. Fortran:1..3 C:0..2");
if ((coord_value<cmin)||(coord_value>cmax)) {
message = (char*)malloc(128*sizeof(char));
sprintf(message,
"IndexFloor: coordinate value outside grid [%f,%f]: %f \n",
cmin, cmax, coord_value);
CCTK_WARN(2,message);
free(message);
return(-3);
}
idummy = floor((coord_value-GH->cctk_origin_space[d])/ GH->cctk_delta_space[d]);
index_low = idummy-GH->cctk_lbnd[d];
if (GH->cctk_bbox[2*d]==1)
lgs = 0;
else
lgs = GH->cctk_nghostzones[d];
if (GH->cctk_bbox[2*d+1]==1)
ugs = 0;
else
ugs = GH->cctk_nghostzones[d];
if (index_low<lgs)
index_low = -1;
if (index_low>=GH->cctk_lsh[d]-ugs)
index_low = -1;
return(index_low);
}
/*@@
@routine IndexCeil
@date Fri Jan 7 10:34:29 2000
@author Gerd Lanfermann
@desc
For a given physical, global coordinate, IndexCeil returns
the closest upper grid index *locally* in the direction d,
which is owned by the grid path. (Ghostzone are not owned!)
Other return values:
-1 : grid index not on this gridpatch
-3 : coordinate is outside global grid
This routine and the Fortran wrapper are Fortran/C index aware.
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
int IndexCeil(cGH *GH, CCTK_REAL coord_value, int d)
{
int ierr,index_up,idummy,ugs,lgs;
char *message;
CCTK_REAL cmin,cmax;
if (d==0)
ierr= CCTK_CoordRange(GH,&cmin,&cmax,"x");
else if (d==1)
ierr= CCTK_CoordRange(GH,&cmin,&cmax,"y");
else if (d==2)
ierr= CCTK_CoordRange(GH,&cmin,&cmax,"z");
else
CCTK_WARN(0,"IndexCeil: dimension is not valid. Fortran:1..3 C:0..2");
if ((coord_value<cmin)||(coord_value>cmax)) {
message = (char*) malloc(256*sizeof(char));
sprintf(message,
"IndexCeil: coordinate value outside grid [%f,%f]: %f \n",
cmin,cmax, coord_value);
CCTK_WARN(2,message);
free(message);
return(-3);
}
idummy = ceil((coord_value-GH->cctk_origin_space[d])/ GH->cctk_delta_space[d]);
index_up = idummy-GH->cctk_lbnd[d];
if (GH->cctk_bbox[2*d]==1)
lgs = 0;
else
lgs = GH->cctk_nghostzones[d];
if (GH->cctk_bbox[2*d+1]==1)
ugs = 0;
else
ugs = GH->cctk_nghostzones[d];
if (index_up<lgs)
index_up = -1;
if (index_up>=GH->cctk_lsh[d]-ugs)
index_up = -1;
return(index_up);
}
void FMODIFIER FORTRAN_NAME(IndexFloor)
(cGH *GH, CCTK_REAL *coord_value, int *index_low, int *fdim) {
/* note the increase/decrease of indeces for fortran compatability */
*index_low = IndexFloor(GH, *coord_value, (*fdim)-1);
if ((*index_low)>=0) (*index_low)++;
}
void FMODIFIER FORTRAN_NAME(IndexCeil)
(cGH *GH, CCTK_REAL *coord_value, int *index_up, int *fdim) {
/* note the increase/decrease of indeces for fortran compatability */
*index_up = IndexCeil(GH, *coord_value, (*fdim)-1);
if ((*index_up)>=0) (*index_up)++;
}
|
