CIS 655 Computer Architecture Assignment 2.docx - 28th September 2017 ASSIGNMENT 2 CIS 655 Computer Architecture Namrata Prabhakara Arkalgud Assignment

CIS 655 Computer Architecture Assignment 2.docx - 28th...

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28th September 2017 Namrata Prabhakara Arkalgud ASSIGNMENT 2 CIS 655 Computer Architecture
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Assignment 2 Reading and research assignment 1 st question: Paper R2a: This paper discusses the performance of RISC vs CISC having comparable organization of hardware and the outcome is that RISC has an advantage over CISC. The RISC system used in this study is the MIPS M/2000 and CISC system used is Digital VAX 8700. Benchmarks for this study are taken from SPEC 1 related to performance measurement. Results are expressed in terms of SPEC ratio and were displayed on a special monitor designed for the CISC system and tools Pixie and Pixstats for RISC system. The results of the study showed the following: Average CPI of RISC system is lower than CISC but number of instruction had increased a little bit. RISC frequency is lower than CISC frequency. Low RISC factors in cache behavior comparison. In conclusion, the authors say that even though compilers may improve, number of programs used in the study increased and the effect of the OS changed the study will stay true through the changes in all of these factors. Paper R2b: This paper shows the study of different techniques that can be used to increase parallelism in machines. The issue with this study however is that it has a significantly large cycle width and default window size. It also assumes the branch predictor is 85% accurate which might not be the
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  • Spring '08
  • Sibert,E
  • Branch predictor, branch

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