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Merge pull request #3840 from MSOpenTech:concurrency-contrib

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This commit is contained in:
Vadim Pisarevsky 2015-03-19 15:11:01 +00:00
commit 9683f93a76
1 changed files with 28 additions and 5 deletions
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33
modules/core/src/parallel.cpp
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@ -69,7 +69,7 @@
#define HAVE_GCD
#endif
#if defined _MSC_VER && _MSC_VER >= 1600 && !defined(WINRT)
#if defined _MSC_VER && _MSC_VER >= 1600
#define HAVE_CONCURRENCY
#endif
@ -78,7 +78,8 @@
2. HAVE_CSTRIPES - 3rdparty library, should be explicitly enabled
3. HAVE_OPENMP - integrated to compiler, should be explicitly enabled
4. HAVE_GCD - system wide, used automatically (APPLE only)
5. HAVE_CONCURRENCY - part of runtime, used automatically (Windows only - MSVS 10, MSVS 11)
5. WINRT - system wide, used automatically (Windows RT only)
6. HAVE_CONCURRENCY - part of runtime, used automatically (Windows only - MSVS 10, MSVS 11)
*/
#if defined HAVE_TBB
@ -105,6 +106,8 @@
#elif defined HAVE_GCD
#include <dispatch/dispatch.h>
#include <pthread.h>
#elif defined WINRT
#include <ppltasks.h>
#elif defined HAVE_CONCURRENCY
#include <ppl.h>
#endif
@ -118,6 +121,8 @@
# define CV_PARALLEL_FRAMEWORK "openmp"
#elif defined HAVE_GCD
# define CV_PARALLEL_FRAMEWORK "gcd"
#elif defined WINRT
# define CV_PARALLEL_FRAMEWORK "winrt-concurrency"
#elif defined HAVE_CONCURRENCY
# define CV_PARALLEL_FRAMEWORK "ms-concurrency"
#endif
@ -179,7 +184,7 @@ namespace
ProxyLoopBody* ptr_body = static_cast<ProxyLoopBody*>(context);
(*ptr_body)(cv::Range((int)index, (int)index + 1));
}
#elif defined HAVE_CONCURRENCY
#elif defined WINRT || defined HAVE_CONCURRENCY
class ProxyLoopBody : public ParallelLoopBodyWrapper
{
public:
@ -206,7 +211,10 @@ static tbb::task_scheduler_init tbbScheduler(tbb::task_scheduler_init::deferred)
static int numThreadsMax = omp_get_max_threads();
#elif defined HAVE_GCD
// nothing for GCD
#elif defined WINRT
// nothing for WINRT
#elif defined HAVE_CONCURRENCY
class SchedPtr
{
Concurrency::Scheduler* sched_;
@ -224,6 +232,7 @@ public:
~SchedPtr() { *this = 0; }
};
static SchedPtr pplScheduler;
#endif
#endif // CV_PARALLEL_FRAMEWORK
@ -272,6 +281,10 @@ void cv::parallel_for_(const cv::Range& range, const cv::ParallelLoopBody& body,
dispatch_queue_t concurrent_queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_apply_f(stripeRange.end - stripeRange.start, concurrent_queue, &pbody, block_function);
#elif defined WINRT
Concurrency::parallel_for(stripeRange.start, stripeRange.end, pbody);
#elif defined HAVE_CONCURRENCY
if(!pplScheduler || pplScheduler->Id() == Concurrency::CurrentScheduler::Id())
@ -330,11 +343,15 @@ int cv::getNumThreads(void)
return 512; // the GCD thread pool limit
#elif defined WINRT
return 0;
#elif defined HAVE_CONCURRENCY
return 1 + (pplScheduler == 0
? Concurrency::CurrentScheduler::Get()->GetNumberOfVirtualProcessors()
: pplScheduler->GetNumberOfVirtualProcessors());
? Concurrency::CurrentScheduler::Get()->GetNumberOfVirtualProcessors()
: pplScheduler->GetNumberOfVirtualProcessors());
#else
@ -371,6 +388,10 @@ void cv::setNumThreads( int threads )
// unsupported
// there is only private dispatch_queue_set_width() and only for desktop
#elif defined WINRT
return;
#elif defined HAVE_CONCURRENCY
if (threads <= 0)
@ -407,6 +428,8 @@ int cv::getThreadNum(void)
return omp_get_thread_num();
#elif defined HAVE_GCD
return (int)(size_t)(void*)pthread_self(); // no zero-based indexing
#elif defined WINRT
return 0;
#elif defined HAVE_CONCURRENCY
return std::max(0, (int)Concurrency::Context::VirtualProcessorId()); // zero for master thread, unique number for others but not necessary 1,2,3,...
#else