pub fn parallel_prefix_sum(data: &[u32]) -> Vec<u32>
Exclusive prefix sum (scan) of data using rayon work-stealing.
data
Returns a Vec<u32> of the same length where output[i] = Σ data[0..i]. output[0] is always 0.
Vec<u32>
output[i] = Σ data[0..i]
output[0]