Exercise 1.9 Assume for arithmetic, load/store, and branch instructions, a processor has CPIS of 3, 15, and 7, respectively. Also assume that on a single processor a program requires the execution of 3.12E9 arithmetic instructions, 1.75E9 load/store instructions, and 512Million branch instructions. Assume that each processor has a 2.5GHZ clock frequency. Assume that, as the program is parallelized to run over multiple cores, the number of arithmetic and load/store instructions per processor divided by 0.8xp ( where p is the number of processors) but the number of branch instructions per processor remains the same. 1.9.1 [5] Find the total execution time for this program on 1, 2, 4, and 8 processors, and show the relative speedup of the 2,4, and 8 processor results relative to the single processor result 1.9.2 [10] If the CPI of arithmetic instructions was tripled , what would the impact be on the execution time of the program on 1, 2, 4 and 8 processors. 1.9.3 [10] To what should the CPI of load/store instructions be reduced in order for a single processor to match the performance of four processors using the original CPl values? Exercise 1.9 Assume for arithmetic, load/store, and branch instructions, a processor has CPIS of 3, 15, and 7, respectively. Also assume that on a single processor a program requires the execution of 3.12E9 arithmetic instructions, 1.75E9 load/store instructions, and 512Million branch instructions. Assume that each processor has a 2.5GHZ clock frequency. Assume that, as the program is parallelized to run over multiple cores, the number of arithmetic and load/store instructions per processor divided by 0.8xp ( where p is the number of processors) but the number of branch instructions per processor remains the same. 1.9.1 [5] Find the total execution time for this program on 1, 2, 4, and 8 processors, and show the relative speedup of the 2,4, and 8 processor results relative to the single processor result 1.9.2 [10] If the CPI of arithmetic instructions was tripled , what would the impact be on the execution time of the program on 1, 2, 4 and 8 processors. 1.9.3 [10] To what should the CPI of load/store instructions be reduced in order for a single processor to match the performance of four processors using the original CPl values