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Anna University Question Paper Code 71187
ME/M.Tech. DECREE EXAMINATION, JUNE/JULY 2013.
First Semester
Computer Science and Engineering
CS 9211/CS 911/10244 CS 105 — COMPUTER ARCHITECTURE
(Common to M.Tech. information Technology)
(Regulation 2009/2010)
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PART A — (10 x 2 = 20 marks)
1. State Amdahl's law.
2. Consider the execution of a program of 15000 instruction by linear pipeline processor. The clock rate of pipeline is 25 MHz. Pipeline has five stages and one instruction is issued per clock cycle. Neglect penalties due to branch instructions and out of sequence execution. Calculate the speedup program execution by pipeline as compared with that by nor -pip processor.
3. Differentiate spatial and temporal locality.
4. List out the difficulties that cause the instruction pipeline to deviate from its normal operation.
5. Mention the limitations of predicted instructions.
6. What is meant by poison bit?
7. How many branch selected entries are in a (2,2) predictors that has a total of 8k bits in a prediction buffer?
8. What are the steps to design_ an I/O System?
9. State Little's law.
10. What are the protocols to maintain coherence?
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