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We present a randomized parallel algorithm for constructing the threedimensional convex hull on a generic p-processor coarse-grained multicomputer with arbitrary interconnection network and n/ p local memory per processor, where n/ p ≥ p 2+ε (for some arbitrarily small ε > 0). For any given set of n points in 3-space, the algorithm computes the three-dimensional convex hull, with high probability, in O((n log n)/ p) local computation time and O(1) communication phases with at most O(n/ p) datadoi:10.1007/s002240000067 fatcat:outcwc7vqfdzlmlod7wriubpza