Question

1. (30 points) Say we run a particular program on 4 different machines to determine which one has the best performance. Given the information below about each machine, calculate the execution time for each case. Show all work. Machine A: Clock cycle time of 3.0 ns, 100 million instructions, average CPI of 2.0 Machine B: Clock frequency of 400 MHz, 50 million instructions, average CPI of 1.5 Machine C: Same ISA as Machine A, clock frequency of 1.5 GHz, average CPI of 2.0 Machine D: Same ISA as Machine B, clock frequency of 2.5 GHz, average CPI of 4.0

          1. (30 points) Say we run a particular program on 4 different machines to determine
which one has the best performance. Given the information below about each
machine, calculate the execution time for each case. Show all work.
Machine A: Clock cycle time of 3.0 ns, 100 million instructions, average CPI of 2.0
Machine B: Clock frequency of 400 MHz, 50 million instructions, average CPI of 1.5
Machine C: Same ISA as Machine A, clock frequency of 1.5 GHz, average CPI of 2.0
Machine D: Same ISA as Machine B, clock frequency of 2.5 GHz, average CPI of 4.0

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1. (30 points) Say we run a particular program on 4 different machines to determine
which one has the best performance. Given the information below about each
machine, calculate the execution time for each case. Show all work.
Machine A: Clock cycle time of 3.0 ns, 100 million instructions, average CPI of 2.0
Machine B: Clock frequency of 400 MHz, 50 million instructions, average CPI of 1.5
Machine C: Same ISA as Machine A, clock frequency of 1.5 GHz, average CPI of 2.0
Machine D: Same ISA as Machine B, clock frequency of 2.5 GHz, average CPI of 4.0

Added by Bethany N.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

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Solved by Expert Paul Gabriel

Step 1

For Machine A: Clock cycle time = 3.0 ns For Machine B: Clock frequency = 400 MHz = 400 million cycles per second Clock cycle time = 1 / Clock frequency = 1 / 400 million = 2.5 ns For Machine C: Clock frequency = 1.5 GHz = 1.5 billion cycles per second Clock Show more…

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Text: l.30 points Say we run a particular program on 4 different machines to determine which one has the best performance. Given the information below about each machine, calculate the execution time for each case. Show all work. Machine A: Clock cycle time of 3.0 ns, 100 million instructions, average CPI of 2.0 Machine B: Clock frequency of 400 MHz, 50 million instructions, average CPI of 1.5 Machine C: Same ISA as Machine A, clock frequency of 1.5 GHz, average CPI of 2.0 Machine D: Same ISA as Machine B, clock frequency of 2.5 GHz, average CPI of 4.0

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