CSU, Chico: Computer Science 380  (Computer Architecture)    

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Ch 1: FUNDAMENTALS OF COMPUTER DESIGN Microprocessor performance trends Current computing markets What is Computer Architecture? According to H&P (2003) ... Technology trends The Thinning of the Wires Primary goal of Computer Architecture? A general engineering principle Marketability in Computer Architecture Decreasing cost trends (DRAM) Ex: Pentium III cost trends Ex: Intel Pentium 4 microprocessor die Ex: 8-inch MIPS64 R20K wafer Ex: Cost vs. price for a $1K PC "For historical reasons ..." More "legacy" examples Limits on traditional models Example: Pentium 4 die (color) Example: Pentium 4 chip area breakdown Cost and yield Yield and fault-tolerance Performance metrics Example: Code size <> performance Measures of time Benchmarks SPEC Benchmark Suite: CPU2000 SPEC Benchmark Suite: HPC2002, OMP SPEC Benchmark Suite: viewperf, apc SPEC Benchmark Suite: sfs, web99, web99ssl TPC Benchmarks: TPC-C, TPC-H TPC Benchmarks: TPC-R, TPC-W The EEMBC Benchmarks SysOpt.com - System optimization information Reporting performancs = reproducibility Comparing benchmark results Averaging: arith mean vs weighted arith mean Normalized execution time Geometric mean for normalizing Weighting example (arith vs geom means) General systems engineering (GSE): variables GSE: total unit cost GSE: per-use cost GSE: generalized cost component GSE: additive cost expressions Generalized Amdahl's Law Law of Diminishing Returns Practical implications Focus on execution time Focus of Amdahl's Law proper Amdahl's Law - H&P Forms Graphical visualization Review: CPU performance equations Review: cache memory systems Review: computing total stall time Typical memory hierarchy (mid 1990s) Performance and performance per unit price Performance and price-performance, int benchmark Performance and price-performance, FP benchmark High-performance servers Good price-performance servers Embedded processor performance Embedded processor price-performance Power consumption & efficiency as a metric Performance per watt P4 performance relative to P3 Peak versus observed performance Fallacies and Pitfalls This E-Slideshow was prepared by Dr. J for CSCI 380 (Last revised: Thu Jan 30 21:34:39 PDT 2003)