1. Example (1) Two computer systems have been tested using three benchmarks. Using the normalized ratio formula and the following tables below, find which computer system gives better performance than the other. Execution time on the benchmarks (n sec) Computer System AComputer System B Tsut 1 2.12.3 Tsut 2 2.152.4 Tsut 3 2.32.25 Reference execution time (n sec) Tref 1 2.1 Tref 2 2.25 Tref 3 2.2

2. Example (Cont.)

3. Example (2) If the execution time of a program on a single processor is 2.4 ns and the execution time of the same program on a 4 parallel processors is 1.96 ns. Find the Speedup and the fraction f of code infinitely parallelizable with no scheduling overhead using Amdahl’s law.

4. Example (Cont.)