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1. (5 points) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of
1. (5 points) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of a sequence of n operands based on the given binary operation. (a) op(a,b) = 2a + b (b) op(a, b) = ab (a+b) (c) op(a, b) = Va? + b2 (d) opl, 6) = x 7 (x is the vector cross-product in 3D) (Hint: For every , x = 7, and x = 0 1. (5 points) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of a sequence of n operands based on the given binary operation. (a) op(a,b) = 2a + b (b) op(a, b) = ab (a+b) (c) op(a, b) = Va? + b2 (d) opl, 6) = x 7 (x is the vector cross-product in 3D) (Hint: For every , x = 7, and x = 0
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