如何使用sse intrinsics获得浮点向量的和元素(减少)?
简单的串口代码:
void(float *input, float &result, unsigned int NumElems) { result = 0; for(auto i=0; i<NumElems; ++i) result += input[i]; }
c++ sse sum simd reduction
c++ ×1
reduction ×1
simd ×1
sse ×1
sum ×1