如果线程ID被重用,那么std:: thread ::join()可能会等待错误的线程,这似乎是一个错误。它应该按句柄等待,而不是按ID等待。 似乎在TBB任务和OpenMP之间存在错误或不兼容,如果OpenMP主线程在TBB任务上运行,并且恰好有一个被重用的线程ID,那么它可能会挂起。
#include<functional>#ifdefined(_OPENMP)# include<omp.h>#else#include<thread>#include<vector>#endif#ifdef _OPENMPstaticintprocessorCount = static_cast<int>(omp_get_num_procs());#elsestaticintprocessorCount = static_cast<int>(std::thread::hardware_concurrency());#endifstaticvoidParallelFor(inti...
问当使用std：：线程时，与g++/OpenMP相关的Bug？ENC++中函数指针的用途非常广泛，例如回调函数，接口类...
std::atomic<int> g_count = 0; //封装了一个类型为int的 对象（值） void mythread1() { ...
stdgpu is an open-source library providinggeneric GPU data structuresfor fast and reliable data management. Lightweight C++17 library with minimal dependencies CUDA,OpenMP, andHIP (experimental)backends Familiar STL-like GPU containers High-level,agnosticcontainer functions likeinsert(begin, end), to ...
从parallel_for 的注释中知道在并行区域中只能使用data pointer,其异常处理通过std::exception_ptr实现。 # https://github.com/pytorch/pytorch/blob/master/aten/src/ATen/ParallelOpenMP.h template <typename F> inline void invoke_parallel( int64_t begin, ...
If a thread was waiting for an // element, wake it up. void Push(const T& value) { std::unique_lock<std::mutex> lock(mutex_); std::lock_guard<std::mutex> lock(mutex_); queue_.push(value); work_pending_condition_.notify_one(); } @@ -93,7 +93,7 @@ class ConcurrentQueue ...
This is what -openmp gives you implicitly. -reentrancy controls a setting at program startup as to whether the RTL should protect its own data structures against multithread operations. The defaults vary and are changing for 17 (to be thread-safe by default). Translate 0 Kudos Co...
TheOpenMP version of the functionis 52 lines long, with a temporary array to hold the minimum value found by each thread. This can be written in Standard C++ and run in parallel on the GPU with a single call tostd::transform_reduce, letting the compiler take care of all the complications...
CXX = icpc -std=c++11 -O3 -xHost -DMKL_ILP64 CXXFLAGS = -Wall -c -I${MKLROOT}/include -I/opt/intel/oneapi/compiler/latest/linux/compiler/include -qopenmp -qmkl=parallel LDFLAGS = -L${MKLROOT}/lib -Wl,-rpath,${MKLROOT}/lib -lmkl_intel_ilp64 -lmkl_intel_thre...