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
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
#include <iostream>
#include <string>
// mfh 06 Jun 2013: This macro doesn't work like one might thing it
// should. It doesn't take the template parameter DeviceType and
// print its actual type name; it just literally prints out
// "DeviceType". I've worked around this below without using the
// macro, so I'm commenting out the macro to avoid compiler complaints
// about an unused macro.
// #define KOKKOS_IMPL_MACRO_TO_STRING( X ) #X
// #define KOKKOS_MACRO_TO_STRING( X ) KOKKOS_IMPL_MACRO_TO_STRING( X )
//------------------------------------------------------------------------
namespace Test {
enum { NUMBER_OF_TRIALS = 5 };
template <class DeviceType, class LayoutType>
void run_test_mdrange(int exp_beg, int exp_end, const char deviceTypeName[],
int range_offset = 0, int tile_offset = 0)
// exp_beg = 6 => 2^6 = 64 is starting range length
{
#define MDRANGE_PERFORMANCE_OUTPUT_VERBOSE 0
std::string label_mdrange;
label_mdrange.append("\"MDRange< double , ");
label_mdrange.append(deviceTypeName);
label_mdrange.append(" >\"");
std::string label_range_col2;
label_range_col2.append("\"RangeColTwo< double , ");
label_range_col2.append(deviceTypeName);
label_range_col2.append(" >\"");
std::string label_range_col_all;
label_range_col_all.append("\"RangeColAll< double , ");
label_range_col_all.append(deviceTypeName);
label_range_col_all.append(" >\"");
if (std::is_same<LayoutType, Kokkos::LayoutRight>::value) {
std::cout
<< "--------------------------------------------------------------\n"
<< "Performance tests for MDRange Layout Right"
<< "\n--------------------------------------------------------------"
<< std::endl;
} else {
std::cout
<< "--------------------------------------------------------------\n"
<< "Performance tests for MDRange Layout Left"
<< "\n--------------------------------------------------------------"
<< std::endl;
}
for (int i = exp_beg; i < exp_end; ++i) {
const int range_length = (1 << i) + range_offset;
std::cout
<< "\n--------------------------------------------------------------\n"
<< "--------------------------------------------------------------\n"
<< "MDRange Test: range bounds: " << range_length << " , "
<< range_length << " , " << range_length
<< "\n--------------------------------------------------------------\n"
<< "--------------------------------------------------------------\n";
// << std::endl;
int t0_min = 0, t1_min = 0, t2_min = 0;
double seconds_min = 0.0;
// Test 1: The MDRange in full
{
int t0 = 1, t1 = 1, t2 = 1;
int counter = 1;
#if !defined(KOKKOS_ENABLE_CUDA)
int min_bnd = 8;
int tfast = range_length;
#else
int min_bnd = 2;
int tfast = 32;
#endif
while (tfast >= min_bnd) {
int tmid = min_bnd;
while (tmid < tfast) {
t0 = min_bnd;
t1 = tmid;
t2 = tfast;
int t2_rev = min_bnd;
int t1_rev = tmid;
int t0_rev = tfast;
#if defined(KOKKOS_ENABLE_CUDA)
// Note: Product of tile sizes must be < 1024 for Cuda
if (t0 * t1 * t2 >= 1024) {
printf(" Exceeded Cuda tile limits; onto next range set\n\n");
break;
}
#endif
// Run 1 with tiles LayoutRight style
double seconds_1 = 0;
{
seconds_1 =
MultiDimRangePerf3D<DeviceType, double,
LayoutType>::test_multi_index(range_length,
range_length,
range_length,
t0, t1, t2);
}
#if MDRANGE_PERFORMANCE_OUTPUT_VERBOSE
std::cout << label_mdrange << " , " << t0 << " , " << t1 << " , "
<< t2 << " , " << seconds_1 << std::endl;
#endif
if (counter == 1) {
seconds_min = seconds_1;
t0_min = t0;
t1_min = t1;
t2_min = t2;
} else {
if (seconds_1 < seconds_min) {
seconds_min = seconds_1;
t0_min = t0;
t1_min = t1;
t2_min = t2;
}
}
// Run 2 with tiles LayoutLeft style - reverse order of tile dims
double seconds_1rev = 0;
{
seconds_1rev =
MultiDimRangePerf3D<DeviceType, double,
LayoutType>::test_multi_index(range_length,
range_length,
range_length,
t0_rev,
t1_rev,
t2_rev);
}
#if MDRANGE_PERFORMANCE_OUTPUT_VERBOSE
std::cout << label_mdrange << " , " << t0_rev << " , " << t1_rev
<< " , " << t2_rev << " , " << seconds_1rev << std::endl;
#endif
if (seconds_1rev < seconds_min) {
seconds_min = seconds_1rev;
t0_min = t0_rev;
t1_min = t1_rev;
t2_min = t2_rev;
}
++counter;
tmid <<= 1;
} // end inner while
tfast >>= 1;
} // end outer while
std::cout
<< "\n"
<< "--------------------------------------------------------------\n"
<< label_mdrange << "\n Min values "
<< "\n Range length per dim (3D): " << range_length
<< "\n TileDims: " << t0_min << " , " << t1_min << " , " << t2_min
<< "\n Min time: " << seconds_min
<< "\n---------------------------------------------------------------"
<< std::endl;
} // end scope
#if !defined(KOKKOS_ENABLE_CUDA)
double seconds_min_c = 0.0;
int t0c_min = 0, t1c_min = 0, t2c_min = 0;
int counter = 1;
{
int min_bnd = 8;
// Test 1_c: MDRange with 0 for 'inner' tile dim; this case will utilize
// the full span in that direction, should be similar to Collapse<2>
if (std::is_same<LayoutType, Kokkos::LayoutRight>::value) {
for (unsigned int T0 = min_bnd;
T0 < static_cast<unsigned int>(range_length); T0 <<= 1) {
for (unsigned int T1 = min_bnd;
T1 < static_cast<unsigned int>(range_length); T1 <<= 1) {
double seconds_c = 0;
{
seconds_c = MultiDimRangePerf3D<DeviceType, double, LayoutType>::
test_multi_index(range_length, range_length, range_length, T0,
T1, 0);
}
#if MDRANGE_PERFORMANCE_OUTPUT_VERBOSE
std::cout << " MDRange LR with '0' tile - collapse-like \n"
<< label_mdrange << " , " << T0 << " , " << T1 << " , "
<< range_length << " , " << seconds_c << std::endl;
#endif
t2c_min = range_length;
if (counter == 1) {
seconds_min_c = seconds_c;
t0c_min = T0;
t1c_min = T1;
} else {
if (seconds_c < seconds_min_c) {
seconds_min_c = seconds_c;
t0c_min = T0;
t1c_min = T1;
}
}
++counter;
}
}
} else {
for (unsigned int T1 = min_bnd;
T1 <= static_cast<unsigned int>(range_length); T1 <<= 1) {
for (unsigned int T2 = min_bnd;
T2 <= static_cast<unsigned int>(range_length); T2 <<= 1) {
double seconds_c = 0;
{
seconds_c = MultiDimRangePerf3D<DeviceType, double, LayoutType>::
test_multi_index(range_length, range_length, range_length, 0,
T1, T2);
}
#if MDRANGE_PERFORMANCE_OUTPUT_VERBOSE
std::cout << " MDRange LL with '0' tile - collapse-like \n"
<< label_mdrange << " , " << range_length << " < " << T1
<< " , " << T2 << " , " << seconds_c << std::endl;
#endif
t0c_min = range_length;
if (counter == 1) {
seconds_min_c = seconds_c;
t1c_min = T1;
t2c_min = T2;
} else {
if (seconds_c < seconds_min_c) {
seconds_min_c = seconds_c;
t1c_min = T1;
t2c_min = T2;
}
}
++counter;
}
}
}
std::cout
// <<
// "--------------------------------------------------------------\n"
<< label_mdrange << " Collapse<2> style: "
<< "\n Min values "
<< "\n Range length per dim (3D): " << range_length
<< "\n TileDims: " << t0c_min << " , " << t1c_min << " , " << t2c_min
<< "\n Min time: " << seconds_min_c
<< "\n---------------------------------------------------------------"
<< std::endl;
} // end scope test 2
#endif
// Test 2: RangePolicy Collapse2 style
double seconds_2 = 0;
{
seconds_2 = RangePolicyCollapseTwo<DeviceType, double, LayoutType>::
test_index_collapse_two(range_length, range_length, range_length);
}
std::cout << label_range_col2 << " , " << range_length << " , " << seconds_2
<< std::endl;
// Test 3: RangePolicy Collapse all style - not necessary, always slow
/*
double seconds_3 = 0;
{ seconds_3 = RangePolicyCollapseAll< DeviceType , double , LayoutType
>::test_collapse_all(range_length,range_length,range_length) ; } std::cout
<< label_range_col_all
<< " , " << range_length
<< " , " << seconds_3
<< "\n---------------------------------------------------------------"
<< std::endl ;
*/
// Compare fastest times... will never be collapse all so ignore it
// seconds_min = tiled MDRange
// seconds_min_c = collapse<2>-like MDRange (tiledim = span for fast dim) -
// only for non-Cuda, else tile too long seconds_2 = collapse<2>-style
// RangePolicy seconds_3 = collapse<3>-style RangePolicy
#if !defined(KOKKOS_ENABLE_CUDA)
if (seconds_min < seconds_min_c) {
if (seconds_min < seconds_2) {
std::cout
<< "--------------------------------------------------------------"
"\n"
<< " Fastest run: MDRange tiled\n"
<< " Time: " << seconds_min
<< " Difference: " << seconds_2 - seconds_min << " Other times: \n"
<< " MDrange collapse-like (tiledim = span on fast dim) type: "
<< seconds_min_c << "\n"
<< " Collapse2 Range Policy: " << seconds_2 << "\n"
<< "\n-------------------------------------------------------------"
"-"
<< "\n-------------------------------------------------------------"
"-"
//<< "\n\n"
<< std::endl;
} else if (seconds_min > seconds_2) {
std::cout
<< " Fastest run: Collapse2 RangePolicy\n"
<< " Time: " << seconds_2
<< " Difference: " << seconds_min - seconds_2 << " Other times: \n"
<< " MDrange Tiled: " << seconds_min << "\n"
<< " MDrange collapse-like (tiledim = span on fast dim) type: "
<< seconds_min_c << "\n"
<< "\n-------------------------------------------------------------"
"-"
<< "\n-------------------------------------------------------------"
"-"
//<< "\n\n"
<< std::endl;
}
} else if (seconds_min > seconds_min_c) {
if (seconds_min_c < seconds_2) {
std::cout << "---------------------------------------------------------"
"-----\n"
<< " Fastest run: MDRange collapse-like (tiledim = span on "
"fast dim) type\n"
<< " Time: " << seconds_min_c
<< " Difference: " << seconds_2 - seconds_min_c
<< " Other times: \n"
<< " MDrange Tiled: " << seconds_min << "\n"
<< " Collapse2 Range Policy: " << seconds_2 << "\n"
<< "\n-------------------------------------------------------"
"-------"
<< "\n-------------------------------------------------------"
"-------"
//<< "\n\n"
<< std::endl;
} else if (seconds_min_c > seconds_2) {
std::cout
<< " Fastest run: Collapse2 RangePolicy\n"
<< " Time: " << seconds_2
<< " Difference: " << seconds_min_c - seconds_2
<< " Other times: \n"
<< " MDrange Tiled: " << seconds_min << "\n"
<< " MDrange collapse-like (tiledim = span on fast dim) type: "
<< seconds_min_c << "\n"
<< "\n-------------------------------------------------------------"
"-"
<< "\n-------------------------------------------------------------"
"-"
//<< "\n\n"
<< std::endl;
}
} // end else if
#else
if (seconds_min < seconds_2) {
std::cout
<< "--------------------------------------------------------------\n"
<< " Fastest run: MDRange tiled\n"
<< " Time: " << seconds_min
<< " Difference: " << seconds_2 - seconds_min << " Other times: \n"
<< " Collapse2 Range Policy: " << seconds_2 << "\n"
<< "\n--------------------------------------------------------------"
<< "\n--------------------------------------------------------------"
//<< "\n\n"
<< std::endl;
} else if (seconds_min > seconds_2) {
std::cout
<< " Fastest run: Collapse2 RangePolicy\n"
<< " Time: " << seconds_2
<< " Difference: " << seconds_min - seconds_2 << " Other times: \n"
<< " MDrange Tiled: " << seconds_min << "\n"
<< "\n--------------------------------------------------------------"
<< "\n--------------------------------------------------------------"
//<< "\n\n"
<< std::endl;
}
#endif
} // end for
#undef MDRANGE_PERFORMANCE_OUTPUT_VERBOSE
}
} // namespace Test
|
