November 25, 2011

Advanced computer Architecture JNTU previous years question papers

Advanced computer Architecture JNTU previous years question papers


Time: 3 hours
Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks

1.a) Give the reasons why cache coherence is an accepted requirement in small scale multiprocessors?
b) Draw the state transition diagram for an individual cache block in a directory based system.[8+8]

2. What are the challenges of multiple-issue processors? Explain. [16]

3. What are the two factor that speedup depends on. Discuss? [16]

4. What are the three ideas that hardware speculation make use of? Explain. [16]

5. Discuss in detail conditional branch operations? Give examples for each? [16]

6. (a) Define the performance parameters of the interconnection networks.
(b) Assume a network with a bandwidth of 1000M bits/sec has a sending overhead of 80microsec and receiving overhead of 100microsec.Assume two machines one wants to send a 10,000byte message to the other [including header] and a message format allows 10,000bytes in a single message. calculate the total latency to send a message from one machine to another in a SAN. Assuming they are 10m apart. [8+8]

7. Discuss in detail about the RAID levels. [16]

8. Explain the techniques in increasing memory bandwidth. [16]



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