HW1 Solutions.docx - CSE 661/CIS 655 Homework#1 Introduction and Performance Analysis Solutions RESEARCH AND READING ASSIGNMENT A[10[Max 1 page Read and

HW1 Solutions.docx - CSE 661/CIS 655 Homework#1...

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CSE 661/CIS 655 Homework #1: Introduction and Performance Analysis Solutions RESEARCH AND READING ASSIGNMENT A) [10] [Max 1 page] Read and briefly summarize the two papers labeled with R1. Comment on which of the cited features listed for IBM 360 are still used in today’s instruction sets? List some of the arguments made for and against RISC and explain if these arguments still hold true today. Solution: Read and Comment. B) [10] [Max 1 page] Visit the Intel on‐line microprocessor museum 1 , and determine the rate of increase in transistor counts and clock frequencies in the 70's, 80's, 90's, 00’s, and this decade. Also, create a plot of the number of transistors versus technology feature size using an MS Excel spreadsheet. Solution: The transistor count has increased from the 1970’s to the present, at an average and approximate rate of 35% - 45% every year, which is in line with Moore’s law. Today’s transistor count = 15,300,000,000 and clock frequency = 3.8 GHz 1

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CSE 661/CIS 655 Homework #1: Introduction and Performance Analysis Solutions Exercises: [40] 1) [10] Table below shows relevant chip statistics that influence the cost of several processors. Explore the effect of different possible design decisions for the Processor A and answer the below questions. a) What is the yield for Processor A? Solution: Die Yield = Wafer Yeild × 1/(1 + Defects per unit area × Die area)N We assumed that the wafer yield is 100%, no wafers are bad, i.e., Wafer yield = 1 and N=4. Die area = 389mm2 = 3.89 cm2 Defects per unit area = 0.30 Die Yield = 0.045 b) What might be the reasons that Processor A has a lower defect rate than the others?
• Fall '17
• Ehat Ercanli
• Clock rate, Clock signal, Central processing unit, Performance Analysis Solutions

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