PrefixSum.h File Reference

Multi-threaded implementations of inclusive prefix sum. More...

#include <nanovdb/util/Range.h>
#include <vector>
#include <functional>

Go to the source code of this file.

Namespaces
	nanovdb
	nanovdb::util

Functions
template<typename T , typename OpT = std::plus<T>>
T	prefixSum (std::vector< T > &vec, bool threaded=true, OpT op=OpT())
	Computes inclusive prefix sum of a vector. More...
template<typename T , typename Op >
void	inclusiveScan (T *array, size_t size, const T &identity, bool threaded, Op op)
	An inclusive scan includes in[i] when computing out[i]. More...
template<typename T , typename OpT = std::plus<T>>
T	prefixSum (std::vector< T > &vec, bool threaded=true, OpT op=OpT())

Detailed Description

Multi-threaded implementations of inclusive prefix sum.

Author

Ken Museth

Date

March 12, 2023

Note

An exclusive prefix sum is simply an array starting with zero followed by the elements in the inclusive prefix sum, minus its last entry which is the sum of all the input elements.