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5. Round answers to two decimal places. 5.1. Running a program through two parallel ALUS (so that we can have half the delay of the original ALU) increases the overall speed by 20%. What percentage of the delay time was attributable to the ALU? %

5. Round answers to two decimal places. 5.1. Running a program through two parallel ALUS (so that we can have half the delay of the original ALU) increases the overall speed by 20%. What percentage of the delay time was attributable to the ALU? %

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question 7 5. Round answers to two decimal places. 5.1. Running a program through two parallel ALUS (so that we can have half the delay of the original ALU) increases the overall speed by 20%. What percentage of the delay time was attributable to the ALU? % 5.2 Back to single ALU 5-stage pipelined baseline design with forwarding, what is the average CPI if 10% of the operations involve load hazards? (Assume load CPI = 2; all other ops CPI = 1) We have seen that each LDR that triggers a data hazard forces a one-cycle stall in a standard 5-stage pipelined ARM processor. If the ALU is pipelined into two halves: 5.3 How many cycles in an LDR data hazard stall? 5.4 Can forwarding avoid needing any non-LDR, non-branch stalls? {Y or N} 5.5 With 2 ALU pipeline stages and 30% data hazards, 1/3 of which are LDR data hazards, what is the average CPI?
Transcribed Image Text:Question 7 5. Round answers to two decimal places. 5.1. Running a program through two parallel ALUS (so that we can have half the delay of the original ALU) increases the overall speed by 20%. What percentage of the delay time was attributable to the ALU? % 5.2 Back to single ALU 5-stage pipelined baseline design with forwarding, what is the average CPI if 10% of the operations involve load hazards? (Assume load CPI = 2; all other ops CPI = 1) We have seen that each LDR that triggers a data hazard forces a one-cycle stall in a standard 5-stage pipelined ARM processor. If the ALU is pipelined into two halves: 5.3 How many cycles in an LDR data hazard stall? 5.4 Can forwarding avoid needing any non-LDR, non-branch stalls? {Y or N} 5.5 With 2 ALU pipeline stages and 30% data hazards, 1/3 of which are LDR data hazards, what is the average CPI?
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