simdpp::reduce_add(floatint-point)

 

libsimdpp

Types

Capabilities

Operations

Conversions

Bitwise operations

Floating-point operations

Integer operations

Memory access operations

Shuffle operations

Miscellaneous operations

 

Floating-point operations

Elementary operations
add sub	mul div	fmadd fmsub	neg
Rounding
round ceil	floor trunc
Comparisons
cmp_eq cmp_neq	cmp_lt cmp_le	cmp_gt cmp_ge
Reduction
reduce_add reduce_min	reduce_mul reduce_max
Miscellaneous
abs sign	min max	isnan isnan2
Square root and reciprocal
sqrt	rcp_e rcp_rh	rsqrt_e rsqrt_rh

 

template<unsigned N, class E1> Ret reduce_add( const Vec1<N,E1>& a );

Computes the sum of all elements in the vector. The implementation behaves as if the following set of overloads is provided:

Ret	Vec1
float	float32
double	float64

The order in which the operations are executed is undefined, but is consistent on the same instruction set. This may lead to slightly different results on different instruction sets due to different rounding.

Parameters

a

-

floating-point vector

Return value

A sum of all elements within a vector

Equivalent operation

r = a0 + ... + aN