#include <iostream> #include <mutex> #include <thread> #include <vector> // 共享数据 int sharedCounter = 0; // 互斥锁 std::mutex mtx; // 对共享数据的访问操作 void incrementCounter() { std::lock_guard<std::mutex> lock(mt
另一方面的原因是单个成员函数的线程安全并不具备可组合性(composable) 假设有safe_vector<T>class,它的接口与std::vector相同,不过每个成员函数都是线程安全的(类似Java synchronized方法)。但是用safe_vector<T>并不一定能写出线程安全的代码。例如,在if语句判断vec非空之后,别的线程可能清空其元素,从而造成vec[0]...
H2_ELEMENTS_IN_K_DIM;int shmem_k_start_for_h2_B = h2_idx_in_k_dim_B * VECTOR_SIZE_H2;int k_global_B_0 = k_tile_start_prologue + shmem_k_start_for_h2_B;int k_global_B_1 = k_tile_start_prologue + shmem...
H #include <vector> #include <queue> #include <thread> #include <iostream> #include <stdexcept> #include <condition_variable> #include <memory> //unique_ptr #include<assert.h> const int MAX_THREADS = 1000; //最大线程数目 template <typename T> class threadPool { public: threadPool(int ...
Compiler warning (level 4) C4752 found Intel(R) Advanced Vector Extensions; consider using /arch:AVX Compiler warning C4753 Cannot find bounds for pointer; MPX intrinsic function ignored Compiler warning (level 4) C4754 Conversion rules for arithmetic operations in the comparison at %s(%d) mean...
{int h2_idx_in_k_dim_B = threadIdx.x % NUM_H2_ELEMENTS_IN_K_DIM;int shmem_k_start_for_h2_B = h2_idx_in_k_dim_B * VECTOR_SIZE_H2;int k_global_B_0 = k_tile_start_prologue + shmem_k_start_for_h2_B;int k_global_B_1 = k_tile_start_prologue + shmem_k_start_for_h2...
断言,是宏,而非函数。assert 宏的原型定义在<assert.h>(C)、<cassert>(C++)中,其作用是如果它的条件返回错误,则终止程序执行。可以通过定义NDEBUG来关闭 assert,但是需要在源代码的开头,include <assert.h>之前。 使用 代码语言:javascript 代码运行次数:0 ...
C++ 标准始终禁止 const 元素(如 vector<const T> 或set<const T>)的容器。 Visual Studio 2013 及更早版本接受此类容器。 在当前版本中,此类容器无法编译。 std::allocator::deallocate 在Visual Studio 2013 和早期版本中,std::allocator::deallocate(p, n) 忽略了传入用于 n 的参数。 C++ 标准始终要求 n...
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threadIdx.x % NUM_H2_ELEMENTS_IN_K_DIM; // Starting 'half' index in shared memory for this half2 write. int shmem_k_start_for_h2_A = h2_idx_in_k_dim_A * VECTOR_SIZE_H2; // Global k-indices for the two half elements. int k_global_A_0 = k_tile_start_prologue + shmem_k...