3、 atomicExch() int atomicExch(int* address, int val); unsigned int atomicExch(unsigned int* address,unsigned int val); unsigned long long int atomicExch(unsigned long long int* address,unsigned long long int val); float atomicExch(float* address, float val); 读取位于全局或共享存储器中地...
int atomicExch(int* address, int val); unsigned int atomicExch(unsigned int* address, unsigned int val); unsigned long long int atomicExch(unsigned long long int* address, unsigned long long int val); float atomicExch(float* address, float val); 读取位于全局或共享存储器中地址address 处的32...
old = atomicExch( &addr, value ); // old = *addr; *addr = value old = atomicMin ( &addr, value ); // old = *addr; *addr = min( old, value ) old = atomicMax ( &addr, value ); // old = *addr; *addr = max( old, value ) // increment up to value, then reset to...
atomicAdd() 的16 位 __nv_bfloat16 浮点版本仅受计算能力 8.x 及更高版本的设备支持。 B.14.1.2. atomicSub() int atomicSub(int* address, int val); unsigned int atomicSub(unsigned int* address, unsigned int val); 读取位于全局或共享内存中地址address的32 位字 old,计算 (old - val),并将...
float atomicExch(float* address, float val); 读取位于全局或共享存储器中地址address 处的32 位或64 位字old,并将val 存储在存储器的同一地址中。这两项操作在一次原子事务中执行。该函数将返回old。只有全局存储器支持64 位字。 4、 atomicMin() ...
Atomic Functions原子函数 尽量少用原子操作 对同一个内存地址做了add,那么其余线程都会去排队 // 算术运算 // 位运算 atomicAdd() atomicSub() atomicExch() atomicMin() atomicMax() atomicAdd() atomicDec() atomicCAS() atomicAnd() atomicOr() ...
simpleAtomicIntrinsics 全局内存原子指令的简单演示。 simpleAtomicIntrinsics_nvrtc 全局内存原子指令的简单演示。此示例使用 NVRTC 进行运行时编译。 simpleAttributes 这个CUDA 运行时 API 示例是一个非常基础的示例,展示了如何使用影响 L2 局部性的流属性。由于使用 L2 访问策略窗口带来的性能提升只能在计算能力 8.0 或...
ATOM Atomic Operation on Generic Memory ATOMS Atomic Operation on Shared Memory ATOMG Atomic Operation on Global Memory RED Reduction Operation on Generic Memory CCTL Cache Control CCTLL Cache Control ERRBAR Error Barrier MEMBAR Memory Barrier CCTLT Texture Cache Control Texture Instructions TEX Texture...
Atomic operation over the link supported CU_DEVICE_P2P_ATTRIBUTE_ACCESS_ACCESS_SUPPORTED = 0x04 Deprecated use CU_DEVICE_P2P_ATTRIBUTE_CUDA_ARRAY_ACCESS_SUPPORTED instead CU_DEVICE_P2P_ATTRIBUTE_CUDA_ARRAY_ACCESS_SUPPORTED = 0x04 Accessing CUDA arrays over the link supported enum CUdevice_attrib...
__uint_as_float(atomicMin(reinterpret_cast<unsigned int*>(address), __float_as_uint(value))); }__global__ void softmax_v1_kernel_pass1(const float *input, float *max_space, int M, int N, int TILE_SIZE) { const int tid = threadIdx.x; const int BLOCK_SIZE = blockDim.x; ...