midterm1_study_guide

midterm1_study_guide - Midterm 1 Study Guide Chapter 1 –...

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Midterm 1 Study Guide Chapter 1 – Fundamentals of Computer Design Different goals for different classes of computers Discuss the power wall, ILP wall and memory wall and the implications of each Why has multicore technology become so important? In optimizations, why is it important to focus on the common case? Trends in technology o Integrated circuit logic technology - Moore’s law o Performance trends – Bandwidth over Latency o Trends in power Clock gating Static power vs. dynamic power Dependability o Mean time to failure (MTTF) Why is this misleading? o Mean time between failures (MTBF) o Module availability o Problem similar to the example on page 26 o Problem similar to the example on page 27 o Why is a single point of failure bad? Measuring, reporting and summarizing performance o Comparing two systems, showing speedup Equations on page 28 o Throughput o How do you define time for comparisons? o Benchmarks Why are benchmarks important? Why do benchmarks need multiple applications? Why is it important to run the entire benchmark suite and not a subset? Why is it necessary to create new benchmark suites? Quantitative principles of computer design o Amdahl’s Law Define Use Why is Amdahl’s law fundamental to system design? Problems similar to those on pages 40-41 o Processor performance equation Calculate CPU time Calculate CPI What are the components of CPI? Problem similar to the one on page 43 Appendix A – Pipelining: Basic and Intermediate Concepts What is pipelining? What is parallelism? How does pipelining exploit parallelism? What are the advantages and disadvantages of a deeper pipeline? What is a RISC machine (and I don’t just want the acronym) o In terms of types of instructions and structure of instructions Why is a RISC machine easy to pipeline and a CISC machine more difficult? What are the 5 pipeline stages? What happens in each stage?
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midterm1_study_guide - Midterm 1 Study Guide Chapter 1 –...

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