Two new implementations of the LC2K2 have been proposed. Implementation 1 Clock period of 10ns Cycles...
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Two new implementations of the LC2K2 have been proposed. Implementation 1 Clock period of 10ns Cycles per instruction: Instruction ADD, NOR, JALR BEQ NOOP Implementation 2 Clock period of 5ns • Cycles per instruction: Cycles 4 cycles 4 cycles 2 cycles ADD BEQ JALR SW ADD, NOR, LW, SW, JALR BEQ NOOP, HALT Instruction HALT LW SW NOR NOOP LW HALT 8 cycles 10 cycles 1 cycle Your benchmark consists of 1,000,000 instructions and has the following instruction frequency: 20% 20% 10% 10% a) What is the CPI for implementation 1 on this benchmark? [3] b) What is the CPI for implementation 2 on this benchmark? [3] Cycles 3 cycles 5 cycles 4 cycles 20% 10% 10% 0% c) Which implementation is faster on this benchmark? Briefly explain your answer. [6] Two new implementations of the LC2K2 have been proposed. Implementation 1 Clock period of 10ns Cycles per instruction: Instruction ADD, NOR, JALR BEQ NOOP Implementation 2 Clock period of 5ns • Cycles per instruction: Cycles 4 cycles 4 cycles 2 cycles ADD BEQ JALR SW ADD, NOR, LW, SW, JALR BEQ NOOP, HALT Instruction HALT LW SW NOR NOOP LW HALT 8 cycles 10 cycles 1 cycle Your benchmark consists of 1,000,000 instructions and has the following instruction frequency: 20% 20% 10% 10% a) What is the CPI for implementation 1 on this benchmark? [3] b) What is the CPI for implementation 2 on this benchmark? [3] Cycles 3 cycles 5 cycles 4 cycles 20% 10% 10% 0% c) Which implementation is faster on this benchmark? Briefly explain your answer. [6]
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To answer these questions we need to calculate the average cycles per instruction CPI for each implementation using the benchmark data provided The CP... View the full answer
Related Book For
Computer Organization And Design The Hardware Software Interface
ISBN: 9780123747501
4th Revised Edition
Authors: David A. Patterson, John L. Hennessy
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