Efficient Parallel Algorithms for Tree Accumulations
نویسندگان
چکیده
Accumulations are higher-order operations on structured objects; they leave the shape of an object unchanged, but replace elements of that object with accumulated information about other elements. Upwards and downwards accumulations on trees are two such operations; they form the basis of many tree algorithms. We present two Erew Pram algorithms for computing accumulations on trees taking O(logn) time on O(n= logn) processors, which is optimal.
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عنوان ژورنال:
- Sci. Comput. Program.
دوره 23 شماره
صفحات -
تاریخ انتشار 1994