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
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
|
// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "device.h"
#include "../hash.h"
#include "scene_triangle_mesh.h"
#include "scene_user_geometry.h"
#include "scene_instance.h"
#include "scene_curves.h"
#include "scene_subdiv_mesh.h"
#include "../subdiv/tessellation_cache.h"
#include "acceln.h"
#include "geometry.h"
#include "../geometry/cylinder.h"
#include "../bvh/bvh4_factory.h"
#include "../bvh/bvh8_factory.h"
#include "../../common/tasking/taskscheduler.h"
#include "../../common/sys/alloc.h"
namespace embree
{
/*! some global variables that can be set via rtcSetParameter1i for debugging purposes */
ssize_t Device::debug_int0 = 0;
ssize_t Device::debug_int1 = 0;
ssize_t Device::debug_int2 = 0;
ssize_t Device::debug_int3 = 0;
DECLARE_SYMBOL2(RayStreamFilterFuncs,rayStreamFilterFuncs);
static MutexSys g_mutex;
static std::map<Device*,size_t> g_cache_size_map;
static std::map<Device*,size_t> g_num_threads_map;
Device::Device (const char* cfg)
{
/* check that CPU supports lowest ISA */
if (!hasISA(ISA)) {
throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"CPU does not support " ISA_STR);
}
/* set default frequency level for detected CPU */
switch (getCPUModel()) {
case CPU::UNKNOWN: frequency_level = FREQUENCY_SIMD256; break;
case CPU::XEON_ICE_LAKE: frequency_level = FREQUENCY_SIMD256; break;
case CPU::CORE_ICE_LAKE: frequency_level = FREQUENCY_SIMD256; break;
case CPU::CORE_TIGER_LAKE: frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE_COMET_LAKE: frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE_CANNON_LAKE:frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE_KABY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
case CPU::XEON_SKY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE_SKY_LAKE: frequency_level = FREQUENCY_SIMD128; break;
case CPU::XEON_BROADWELL: frequency_level = FREQUENCY_SIMD256; break;
case CPU::CORE_BROADWELL: frequency_level = FREQUENCY_SIMD256; break;
case CPU::XEON_HASWELL: frequency_level = FREQUENCY_SIMD256; break;
case CPU::CORE_HASWELL: frequency_level = FREQUENCY_SIMD256; break;
case CPU::XEON_IVY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
case CPU::CORE_IVY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
case CPU::SANDY_BRIDGE: frequency_level = FREQUENCY_SIMD256; break;
case CPU::NEHALEM: frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE2: frequency_level = FREQUENCY_SIMD128; break;
case CPU::CORE1: frequency_level = FREQUENCY_SIMD128; break;
case CPU::XEON_PHI_KNIGHTS_MILL : frequency_level = FREQUENCY_SIMD512; break;
case CPU::XEON_PHI_KNIGHTS_LANDING: frequency_level = FREQUENCY_SIMD512; break;
case CPU::ARM: frequency_level = FREQUENCY_SIMD128; break;
}
/* initialize global state */
#if defined(EMBREE_CONFIG)
State::parseString(EMBREE_CONFIG);
#endif
State::parseString(cfg);
State::verify();
/* check whether selected ISA is supported by the HW, as the user could have forced an unsupported ISA */
if (!checkISASupport()) {
throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"CPU does not support selected ISA");
}
/*! do some internal tests */
assert(isa::Cylinder::verify());
/*! enable huge page support if desired */
#if defined(__WIN32__)
if (State::enable_selockmemoryprivilege)
State::hugepages_success &= win_enable_selockmemoryprivilege(State::verbosity(3));
#endif
State::hugepages_success &= os_init(State::hugepages,State::verbosity(3));
/*! set tessellation cache size */
setCacheSize( State::tessellation_cache_size );
/*! enable some floating point exceptions to catch bugs */
if (State::float_exceptions)
{
int exceptions = _MM_MASK_MASK;
//exceptions &= ~_MM_MASK_INVALID;
exceptions &= ~_MM_MASK_DENORM;
exceptions &= ~_MM_MASK_DIV_ZERO;
//exceptions &= ~_MM_MASK_OVERFLOW;
//exceptions &= ~_MM_MASK_UNDERFLOW;
//exceptions &= ~_MM_MASK_INEXACT;
_MM_SET_EXCEPTION_MASK(exceptions);
}
/* print info header */
if (State::verbosity(1))
print();
if (State::verbosity(2))
State::print();
/* register all algorithms */
bvh4_factory = make_unique(new BVH4Factory(enabled_builder_cpu_features, enabled_cpu_features));
#if defined(EMBREE_TARGET_SIMD8)
bvh8_factory = make_unique(new BVH8Factory(enabled_builder_cpu_features, enabled_cpu_features));
#endif
/* setup tasking system */
initTaskingSystem(numThreads);
/* ray stream SOA to AOS conversion */
#if defined(EMBREE_RAY_PACKETS)
RayStreamFilterFuncsType rayStreamFilterFuncs;
SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512(enabled_cpu_features,rayStreamFilterFuncs);
rayStreamFilters = rayStreamFilterFuncs();
#endif
}
Device::~Device ()
{
setCacheSize(0);
exitTaskingSystem();
}
std::string getEnabledTargets()
{
std::string v;
#if defined(EMBREE_TARGET_SSE2)
v += "SSE2 ";
#endif
#if defined(EMBREE_TARGET_SSE42)
v += "SSE4.2 ";
#endif
#if defined(EMBREE_TARGET_AVX)
v += "AVX ";
#endif
#if defined(EMBREE_TARGET_AVX2)
v += "AVX2 ";
#endif
#if defined(EMBREE_TARGET_AVX512)
v += "AVX512 ";
#endif
return v;
}
std::string getEmbreeFeatures()
{
std::string v;
#if defined(EMBREE_RAY_MASK)
v += "raymasks ";
#endif
#if defined (EMBREE_BACKFACE_CULLING)
v += "backfaceculling ";
#endif
#if defined (EMBREE_BACKFACE_CULLING_CURVES)
v += "backfacecullingcurves ";
#endif
#if defined(EMBREE_FILTER_FUNCTION)
v += "intersection_filter ";
#endif
#if defined (EMBREE_COMPACT_POLYS)
v += "compact_polys ";
#endif
return v;
}
void Device::print()
{
const int cpu_features = getCPUFeatures();
std::cout << std::endl;
std::cout << "Embree Ray Tracing Kernels " << RTC_VERSION_STRING << " (" << RTC_HASH << ")" << std::endl;
std::cout << " Compiler : " << getCompilerName() << std::endl;
std::cout << " Build : ";
#if defined(DEBUG)
std::cout << "Debug " << std::endl;
#else
std::cout << "Release " << std::endl;
#endif
std::cout << " Platform : " << getPlatformName() << std::endl;
std::cout << " CPU : " << stringOfCPUModel(getCPUModel()) << " (" << getCPUVendor() << ")" << std::endl;
std::cout << " Threads : " << getNumberOfLogicalThreads() << std::endl;
std::cout << " ISA : " << stringOfCPUFeatures(cpu_features) << std::endl;
std::cout << " Targets : " << supportedTargetList(cpu_features) << std::endl;
const bool hasFTZ = _mm_getcsr() & _MM_FLUSH_ZERO_ON;
const bool hasDAZ = _mm_getcsr() & _MM_DENORMALS_ZERO_ON;
std::cout << " MXCSR : " << "FTZ=" << hasFTZ << ", DAZ=" << hasDAZ << std::endl;
std::cout << " Config" << std::endl;
std::cout << " Threads : " << (numThreads ? toString(numThreads) : std::string("default")) << std::endl;
std::cout << " ISA : " << stringOfCPUFeatures(enabled_cpu_features) << std::endl;
std::cout << " Targets : " << supportedTargetList(enabled_cpu_features) << " (supported)" << std::endl;
std::cout << " " << getEnabledTargets() << " (compile time enabled)" << std::endl;
std::cout << " Features: " << getEmbreeFeatures() << std::endl;
std::cout << " Tasking : ";
#if defined(TASKING_TBB)
std::cout << "TBB" << TBB_VERSION_MAJOR << "." << TBB_VERSION_MINOR << " ";
#if TBB_INTERFACE_VERSION >= 12002
std::cout << "TBB_header_interface_" << TBB_INTERFACE_VERSION << " TBB_lib_interface_" << TBB_runtime_interface_version() << " ";
#else
std::cout << "TBB_header_interface_" << TBB_INTERFACE_VERSION << " TBB_lib_interface_" << tbb::TBB_runtime_interface_version() << " ";
#endif
#endif
#if defined(TASKING_INTERNAL)
std::cout << "internal_tasking_system ";
#endif
#if defined(TASKING_PPL)
std::cout << "PPL ";
#endif
std::cout << std::endl;
/* check of FTZ and DAZ flags are set in CSR */
if (!hasFTZ || !hasDAZ)
{
#if !defined(_DEBUG)
if (State::verbosity(1))
#endif
{
std::cout << std::endl;
std::cout << "================================================================================" << std::endl;
std::cout << " WARNING: \"Flush to Zero\" or \"Denormals are Zero\" mode not enabled " << std::endl
<< " in the MXCSR control and status register. This can have a severe " << std::endl
<< " performance impact. Please enable these modes for each application " << std::endl
<< " thread the following way:" << std::endl
<< std::endl
<< " #include \"xmmintrin.h\"" << std::endl
<< " #include \"pmmintrin.h\"" << std::endl
<< std::endl
<< " _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);" << std::endl
<< " _MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);" << std::endl;
std::cout << "================================================================================" << std::endl;
std::cout << std::endl;
}
}
std::cout << std::endl;
}
void Device::setDeviceErrorCode(RTCError error)
{
RTCError* stored_error = errorHandler.error();
if (*stored_error == RTC_ERROR_NONE)
*stored_error = error;
}
RTCError Device::getDeviceErrorCode()
{
RTCError* stored_error = errorHandler.error();
RTCError error = *stored_error;
*stored_error = RTC_ERROR_NONE;
return error;
}
void Device::setThreadErrorCode(RTCError error)
{
RTCError* stored_error = g_errorHandler.error();
if (*stored_error == RTC_ERROR_NONE)
*stored_error = error;
}
RTCError Device::getThreadErrorCode()
{
RTCError* stored_error = g_errorHandler.error();
RTCError error = *stored_error;
*stored_error = RTC_ERROR_NONE;
return error;
}
void Device::process_error(Device* device, RTCError error, const char* str)
{
/* store global error code when device construction failed */
if (!device)
return setThreadErrorCode(error);
/* print error when in verbose mode */
if (device->verbosity(1))
{
switch (error) {
case RTC_ERROR_NONE : std::cerr << "Embree: No error"; break;
case RTC_ERROR_UNKNOWN : std::cerr << "Embree: Unknown error"; break;
case RTC_ERROR_INVALID_ARGUMENT : std::cerr << "Embree: Invalid argument"; break;
case RTC_ERROR_INVALID_OPERATION: std::cerr << "Embree: Invalid operation"; break;
case RTC_ERROR_OUT_OF_MEMORY : std::cerr << "Embree: Out of memory"; break;
case RTC_ERROR_UNSUPPORTED_CPU : std::cerr << "Embree: Unsupported CPU"; break;
default : std::cerr << "Embree: Invalid error code"; break;
};
if (str) std::cerr << ", (" << str << ")";
std::cerr << std::endl;
}
/* call user specified error callback */
if (device->error_function)
device->error_function(device->error_function_userptr,error,str);
/* record error code */
device->setDeviceErrorCode(error);
}
void Device::memoryMonitor(ssize_t bytes, bool post)
{
if (State::memory_monitor_function && bytes != 0) {
if (!State::memory_monitor_function(State::memory_monitor_userptr,bytes,post)) {
if (bytes > 0) { // only throw exception when we allocate memory to never throw inside a destructor
throw_RTCError(RTC_ERROR_OUT_OF_MEMORY,"memory monitor forced termination");
}
}
}
}
size_t getMaxNumThreads()
{
size_t maxNumThreads = 0;
for (std::map<Device*,size_t>::iterator i=g_num_threads_map.begin(); i != g_num_threads_map.end(); i++)
maxNumThreads = max(maxNumThreads, (*i).second);
if (maxNumThreads == 0)
maxNumThreads = std::numeric_limits<size_t>::max();
return maxNumThreads;
}
size_t getMaxCacheSize()
{
size_t maxCacheSize = 0;
for (std::map<Device*,size_t>::iterator i=g_cache_size_map.begin(); i!= g_cache_size_map.end(); i++)
maxCacheSize = max(maxCacheSize, (*i).second);
return maxCacheSize;
}
void Device::setCacheSize(size_t bytes)
{
#if defined(EMBREE_GEOMETRY_SUBDIVISION)
Lock<MutexSys> lock(g_mutex);
if (bytes == 0) g_cache_size_map.erase(this);
else g_cache_size_map[this] = bytes;
size_t maxCacheSize = getMaxCacheSize();
resizeTessellationCache(maxCacheSize);
#endif
}
void Device::initTaskingSystem(size_t numThreads)
{
Lock<MutexSys> lock(g_mutex);
if (numThreads == 0)
g_num_threads_map[this] = std::numeric_limits<size_t>::max();
else
g_num_threads_map[this] = numThreads;
/* create task scheduler */
size_t maxNumThreads = getMaxNumThreads();
TaskScheduler::create(maxNumThreads,State::set_affinity,State::start_threads);
#if USE_TASK_ARENA
const size_t nThreads = min(maxNumThreads,TaskScheduler::threadCount());
const size_t uThreads = min(max(numUserThreads,(size_t)1),nThreads);
arena = make_unique(new tbb::task_arena((int)nThreads,(unsigned int)uThreads));
#endif
}
void Device::exitTaskingSystem()
{
Lock<MutexSys> lock(g_mutex);
g_num_threads_map.erase(this);
/* terminate tasking system */
if (g_num_threads_map.size() == 0) {
TaskScheduler::destroy();
}
/* or configure new number of threads */
else {
size_t maxNumThreads = getMaxNumThreads();
TaskScheduler::create(maxNumThreads,State::set_affinity,State::start_threads);
}
#if USE_TASK_ARENA
arena.reset();
#endif
}
void Device::setProperty(const RTCDeviceProperty prop, ssize_t val)
{
/* hidden internal properties */
switch ((size_t)prop)
{
case 1000000: debug_int0 = val; return;
case 1000001: debug_int1 = val; return;
case 1000002: debug_int2 = val; return;
case 1000003: debug_int3 = val; return;
}
throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown writable property");
}
ssize_t Device::getProperty(const RTCDeviceProperty prop)
{
size_t iprop = (size_t)prop;
/* get name of internal regression test */
if (iprop >= 2000000 && iprop < 3000000)
{
RegressionTest* test = getRegressionTest(iprop-2000000);
if (test) return (ssize_t) test->name.c_str();
else return 0;
}
/* run internal regression test */
if (iprop >= 3000000 && iprop < 4000000)
{
RegressionTest* test = getRegressionTest(iprop-3000000);
if (test) return test->run();
else return 0;
}
/* documented properties */
switch (prop)
{
case RTC_DEVICE_PROPERTY_VERSION_MAJOR: return RTC_VERSION_MAJOR;
case RTC_DEVICE_PROPERTY_VERSION_MINOR: return RTC_VERSION_MINOR;
case RTC_DEVICE_PROPERTY_VERSION_PATCH: return RTC_VERSION_PATCH;
case RTC_DEVICE_PROPERTY_VERSION : return RTC_VERSION;
#if defined(EMBREE_TARGET_SIMD4) && defined(EMBREE_RAY_PACKETS)
case RTC_DEVICE_PROPERTY_NATIVE_RAY4_SUPPORTED: return hasISA(SSE2);
#else
case RTC_DEVICE_PROPERTY_NATIVE_RAY4_SUPPORTED: return 0;
#endif
#if defined(EMBREE_TARGET_SIMD8) && defined(EMBREE_RAY_PACKETS)
case RTC_DEVICE_PROPERTY_NATIVE_RAY8_SUPPORTED: return hasISA(AVX);
#else
case RTC_DEVICE_PROPERTY_NATIVE_RAY8_SUPPORTED: return 0;
#endif
#if defined(EMBREE_TARGET_SIMD16) && defined(EMBREE_RAY_PACKETS)
case RTC_DEVICE_PROPERTY_NATIVE_RAY16_SUPPORTED: return hasISA(AVX512);
#else
case RTC_DEVICE_PROPERTY_NATIVE_RAY16_SUPPORTED: return 0;
#endif
#if defined(EMBREE_RAY_PACKETS)
case RTC_DEVICE_PROPERTY_RAY_STREAM_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_RAY_STREAM_SUPPORTED: return 0;
#endif
#if defined(EMBREE_RAY_MASK)
case RTC_DEVICE_PROPERTY_RAY_MASK_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_RAY_MASK_SUPPORTED: return 0;
#endif
#if defined(EMBREE_BACKFACE_CULLING)
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_ENABLED: return 1;
#else
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_ENABLED: return 0;
#endif
#if defined(EMBREE_BACKFACE_CULLING_CURVES)
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_CURVES_ENABLED: return 1;
#else
case RTC_DEVICE_PROPERTY_BACKFACE_CULLING_CURVES_ENABLED: return 0;
#endif
#if defined(EMBREE_COMPACT_POLYS)
case RTC_DEVICE_PROPERTY_COMPACT_POLYS_ENABLED: return 1;
#else
case RTC_DEVICE_PROPERTY_COMPACT_POLYS_ENABLED: return 0;
#endif
#if defined(EMBREE_FILTER_FUNCTION)
case RTC_DEVICE_PROPERTY_FILTER_FUNCTION_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_FILTER_FUNCTION_SUPPORTED: return 0;
#endif
#if defined(EMBREE_IGNORE_INVALID_RAYS)
case RTC_DEVICE_PROPERTY_IGNORE_INVALID_RAYS_ENABLED: return 1;
#else
case RTC_DEVICE_PROPERTY_IGNORE_INVALID_RAYS_ENABLED: return 0;
#endif
#if defined(TASKING_INTERNAL)
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 0;
#endif
#if defined(TASKING_TBB)
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 1;
#endif
#if defined(TASKING_PPL)
case RTC_DEVICE_PROPERTY_TASKING_SYSTEM: return 2;
#endif
#if defined(EMBREE_GEOMETRY_TRIANGLE)
case RTC_DEVICE_PROPERTY_TRIANGLE_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_TRIANGLE_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(EMBREE_GEOMETRY_QUAD)
case RTC_DEVICE_PROPERTY_QUAD_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_QUAD_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(EMBREE_GEOMETRY_CURVE)
case RTC_DEVICE_PROPERTY_CURVE_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_CURVE_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(EMBREE_GEOMETRY_SUBDIVISION)
case RTC_DEVICE_PROPERTY_SUBDIVISION_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_SUBDIVISION_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(EMBREE_GEOMETRY_USER)
case RTC_DEVICE_PROPERTY_USER_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_USER_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(EMBREE_GEOMETRY_POINT)
case RTC_DEVICE_PROPERTY_POINT_GEOMETRY_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_POINT_GEOMETRY_SUPPORTED: return 0;
#endif
#if defined(TASKING_PPL)
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 0;
#elif defined(TASKING_TBB) && (TBB_INTERFACE_VERSION_MAJOR < 8)
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 0;
#else
case RTC_DEVICE_PROPERTY_JOIN_COMMIT_SUPPORTED: return 1;
#endif
#if defined(TASKING_TBB) && TASKING_TBB_USE_TASK_ISOLATION
case RTC_DEVICE_PROPERTY_PARALLEL_COMMIT_SUPPORTED: return 1;
#else
case RTC_DEVICE_PROPERTY_PARALLEL_COMMIT_SUPPORTED: return 0;
#endif
default: throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown readable property"); break;
};
}
}
|