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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstdlib>
#include <iostream>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "ggf.hh"
#include "gh.hh"
#include "carpet.hh"
namespace Carpet {
using namespace std;
static void ProlongateGroupBoundaries (const cGH* cctkGH,
CCTK_REAL initial_time,
const vector<int>& groups);
// Carpet's overload function for CCTK_SyncGroupsByDirI()
// which synchronises a set of groups given by their indices.
// Synchronisation of individual directions is not (yet?) implemented.
//
// returns the number of groups successfully synchronised
// -1 if a group in the set doesn't have storage assigned
int SyncGroupsByDirI (const cGH* cctkGH,
int num_groups,
const int *groups,
const int *directions)
{
int group, retval = 0;
vector<int> groups_set;
// individual directions aren't supported (yet?)
if (directions != NULL) {
CCTK_WARN (0, "Carpet doesn't support synchronisation of individual "
"directions");
}
for (group = 0; group < num_groups; group++) {
if (CCTK_NumVarsInGroupI (groups[group]) > 0) {
groups_set.push_back (groups[group]);
}
}
if (groups_set.size() > 0) {
retval = SyncProlongateGroups (cctkGH, groups_set);
if (retval == 0) {
retval = groups_set.size();
}
}
return retval;
}
// synchronises ghostzones and prolongates boundaries of a set of groups
//
// returns 0 for success and -1 if the set contains a group with no storage
int SyncProlongateGroups (const cGH* cctkGH, const vector<int>& groups)
{
int retval = 0;
DECLARE_CCTK_PARAMETERS;
assert (groups.size() > 0);
// check consistency of all groups:
// create a new set with empty and no-storage groups removed
vector<int> goodgroups;
for (size_t g = 0; g < groups.size(); g++) {
const int group = groups[g];
const int grouptype = CCTK_GroupTypeI (group);
char* groupname = CCTK_GroupName (group);
Checkpoint ("SyncGroup \"%s\" time=%g",
groupname, (double) cctkGH->cctk_time);
if (grouptype == CCTK_GF) {
if (reflevel == -1) {
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"Cannot synchronise in global mode "
"(Tried to synchronise group \"%s\")",
groupname);
}
if (map != -1 and component == -1) {
if (maps == 1) {
CCTK_VWarn (2, __LINE__, __FILE__, CCTK_THORNSTRING,
"Synchronising group \"%s\" in singlemap mode",
groupname);
} else {
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"Cannot synchronise in singlemap mode "
"(Tried to synchronise group \"%s\")",
groupname);
}
}
if (component != -1) {
if (maps == 1 and vhh.at(map)->local_components(reflevel) == 1) {
CCTK_VWarn (2, __LINE__, __FILE__, CCTK_THORNSTRING,
"Synchronising group \"%s\" in local mode",
groupname);
} else {
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"Cannot synchronise in local mode "
"(Tried to synchronise group \"%s\")",
groupname);
}
}
}
if (not CCTK_QueryGroupStorageI (cctkGH, group)) {
CCTK_VWarn (2, __LINE__, __FILE__, CCTK_THORNSTRING,
"Cannot synchronise group \"%s\" because it has no storage",
groupname);
retval = -1;
}
else if (CCTK_NumVarsInGroupI (group) > 0) {
goodgroups.push_back(group);
}
free (groupname);
}
if (goodgroups.size() > 0) {
bool local_do_prolongate;
if (do_prolongate) {
if (do_taper) {
if (reflevel == 0) {
local_do_prolongate = true;
} else { // on a fine level
#warning "TODO: Check iteration number instead -- this is wrong while regridding"
CCTK_REAL mytime;
CCTK_REAL parenttime;
if (map == -1) {
mytime = vtt.at(0)->time (0, reflevel, mglevel);
parenttime = vtt.at(0)->time (0, reflevel - 1, mglevel);
} else {
mytime = vtt.at(map)->time (0, reflevel, mglevel);
parenttime = vtt.at(map)->time (0, reflevel - 1, mglevel);
}
CCTK_REAL const eps = 1.0e-12;
bool const in_sync =
abs (mytime - parenttime) <= eps * abs (delta_time);
#if 0
int const parent_do_every =
ipow(mgfact, mglevel) *
(maxtimereflevelfact / timereffacts.at(reflevel-1));
bool const parent_is_active =
cctkGH->cctk_iteration == 0 or
(cctkGH->cctk_iteration-1) % parent_do_every == 0;
int const do_every =
ipow(mgfact, mglevel) *
(maxtimereflevelfact / timereffacts.at(reflevel));
bool const is_active =
cctkGH->cctk_iteration == 0 or
(cctkGH->cctk_iteration-1) % do_every == 0;
bool const new_in_sync = is_active and parent_is_active;
#warning "just for testing"
#warning "if this breaks, fix also CarpetRegrid2"
assert (new_in_sync == in_sync);
if (not (new_in_sync == in_sync)) {
CCTK_WARN (CCTK_WARN_ABORT, "assert (new_in_sync == in_sync)");
}
#endif
local_do_prolongate = in_sync;
}
} else { // no tapered grids
local_do_prolongate = true;
}
} else { // not do_prolongate
local_do_prolongate = false;
}
// prolongate boundaries
if (local_do_prolongate) {
if (reflevel > 0) {
ProlongateGroupBoundaries (cctkGH, cctk_initial_time, goodgroups);
}
}
// synchronise ghostzones
if (sync_during_time_integration or local_do_prolongate) {
SyncGroups (cctkGH, goodgroups);
}
} // for g
return retval;
}
// Prolongate the boundaries of all CCTK_GF groups in the given set
static void ProlongateGroupBoundaries (const cGH* cctkGH,
const CCTK_REAL initial_time,
const vector<int>& groups)
{
DECLARE_CCTK_PARAMETERS;
const int tl = 0;
// use the current time here (which may be modified by the user)
const CCTK_REAL time
= (cctkGH->cctk_time - initial_time) / delta_time;
for (comm_state state; not state.done(); state.step()) {
for (int group = 0; group < (int)groups.size(); ++group) {
const int g = groups.AT(group);
const int grouptype = CCTK_GroupTypeI (g);
if (grouptype != CCTK_GF) {
continue;
}
assert (reflevel>=0 and reflevel<reflevels);
for (int m = 0; m < (int)arrdata.at(g).size(); ++m) {
for (int v = 0; v < (int)arrdata.at(g).at(m).data.size(); ++v) {
ggf *const gv = arrdata.at(g).at(m).data.at(v);
gv->ref_bnd_prolongate_all (state, tl, reflevel, mglevel, time);
}
}
}
}
}
// synchronises a set of groups
void SyncGroups (const cGH* cctkGH, const vector<int>& groups)
{
DECLARE_CCTK_PARAMETERS;
const int tl = 0;
assert (groups.size() > 0);
for (comm_state state; not state.done(); state.step()) {
for (int group = 0; group < (int)groups.size(); ++group) {
const int g = groups[group];
const int grouptype = CCTK_GroupTypeI (g);
const int ml = grouptype == CCTK_GF ? mglevel : 0;
const int rl = grouptype == CCTK_GF ? reflevel : 0;
for (int m = 0; m < (int)arrdata.at(g).size(); ++m) {
for (int v = 0; v < (int)arrdata.at(g).at(m).data.size(); ++v) {
arrdesc& array = arrdata.at(g).at(m);
array.data.at(v)->sync_all (state, tl, rl, ml);
}
}
}
}
}
int EnableGroupComm (const cGH* cctkGH, const char* groupname)
{
// Communication is always enabled
return 0;
}
int DisableGroupComm (const cGH* cctkGH, const char* groupname)
{
// Communication is always enabled
return -1;
}
} // namespace Carpet
|
