Compilers can have a profound impact on the performance of an application. Assume that for a program, compiler A results in an instruction count of 1.0E9 and has an execution time of 1.1s, and compiler B results in an instruction count of 1.2E9 and 1.5s

a. Find the average CPI for both compilers assuming a clock cycle time of 1ns.

b. Another Compiler C creates for the same code on 6.0E8 instructions, and has an average CPI of 1.1. What is the Speedup of the program using Compiler C vs Compiler A, and the Speedup of Compiler C vs. Compiler B, assuming in all cases the same clock cycle time of 1ns?