Question: . Give an CREW algorithm for solving the problem of multiplying an n n matrix A and vector x in O (log n ) time.

. Give an CREW algorithm for solving the problem of multiplying an nn matrix A and vector x in O(log n) time. How many processors does your algorithm require? How much work does it require? Comparing your algorithm to its sequential one, what is its efficiency and speedup? (Use O(.) notation to describe various results).

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