midterm1.f08.txt

midterm1.f08.txt - Very Short Answer: (1) (2) What is the...

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Very Short Answer: (1) (2) What is the relationship between speculation and power consumption? (2) (2) If you are mainly worried about program size, what type of instruction set would you use? What if performance was your primary concern? (3) (1) Which is more effective ,dynamic or static branch prediction? (4) (1) Do benchmarks remain valid indefinitely? (5) (2) Issuing multiple instructions per cycle puts tremendous pressure on what twoparts of the machine? (6) (2) In class we mentioned VLIW and Superscalar as twoways to circumvent the Flynn Limit of 1. We also talked about twoother approaches - what were they? (7) (2) Out of Order completion makes supporting what very difficult? (8) (2) Are wire delays or transistors more likely to be the most significant limit on clock frequencyin the future? Why? -1-
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(9) (2) What does SMT stand for? (10) (2) Decoupled architectures split a program into twostreams. What are they? (11) (2) What is Amdahl’slaw (in words)? (12) (2) What is the primary difference between Scoreboarding and Tomasulo’salgorithm? Short Answers: (10) (4) Whyare there multiple dies per silicon wafer? Whynot just fabricate one huge die per wafer? (11) (3) Write down the 3-term CPU performance equation developed in class. -2-
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(12) (3) The book lists several things that limit the amount of achievable ILP .List 3 of them.
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This note was uploaded on 02/07/2012 for the course ECS 201 taught by Professor Staff during the Winter '08 term at UC Davis.

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midterm1.f08.txt - Very Short Answer: (1) (2) What is the...

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