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In computer science, the prefix sum, cumulative sum, inclusive scan, or simply scan of a sequence of numbers x0, x1, x2, ... is a second sequence of numbers y0, y1, y2, ..., the sums of prefixes (running totals) of the input sequence:
Applications & Science
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prefix sum parallel algorithm sums algorithms scan displaystyle used number sequence binary two pes value also left log time elements
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| counting sort | instance of | prefix sums are a useful primitive in certain algorithms | 0.80 | text |
| and they form the basis of the scan higher-order function in functional programming languages | instance of | prefix sums are a useful primitive in certain algorithms | 0.80 | text |
| a GPU | instance of | and they can also be computed efficiently on modern parallel hardware | 0.80 | text |
| the Connection Machine | instance of | parallel prefix operations form part of the formalization of the data parallelism model provided by machines | 0.80 | text |
| Prefix sum | has application | Counting | 0.60 | section |
| Prefix sum | has application | It | 0.60 | section |
| Prefix sum | has application | List | 0.60 | section |
| Prefix sum | has application | Euler | 0.60 | section |
| Prefix sum | related to Algorithm 1: Shorter span, more parallel | Hillis | 0.60 | section |
| Prefix sum | related to Algorithm 1: Shorter span, more parallel | Steele | 0.60 | section |
| Prefix sum | related to Algorithm 1: Shorter span, more parallel | In | 0.60 | section |
| Prefix sum | related to Algorithm 2: Work-efficient | Compute | 0.60 | section |
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