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Consider four different processors P1, P2, P3, and P4 executing the same instruction set. P1 has a 3.0 GHz dlock rate and a CPI of 1.5; P2 has a 2.5 GHz clock rate and a CPI of 1.25; P3 has a 4.0 GHz clock rate and a CPI of 2.2: P4 has 2.0 GHz clock rate and a CPI of 2.75. a. Assume that processor P1 executes a benchmark program in 10 seconds. Using paper and pencil, calculate the number of cycles required to execute the program and the number of instructions executed in the program. Choose your answers from the following values: 10*10^9:20*10^9; 18.18*10^9; 30*10^9; 7.27*10^9; 10*1019: 12.5*10^9:15*10^9; 32*10^9; 32.5*1019 : 21.5*1019: 24*10^9; If the calculated answer is not found, write your answer in the same format please. Cycles (P1)-Blank 1 No. instructions (P1-Blank 2 b. We are trying to reduce the execution time by 25%, but this leads to an increase of 20% in the CPI. What is the new CPI for the processor P17 And if P1 executes a 20*10^9 instructions program, what clock rate (in GHz) should we have to get this time reduction? Choose your answers from the following values: 1.8:7.04; 2.64; 1,5; 2.4: 4.8: 4.0; 3.3: 6.4 ; 5.0; 3.5; 4.5 ; 2.8 4.6; 8.8; 2.25: 3.0. If the calculated answer is not found, write your answer in the same format please. Pinew (P1)- Blank 3 Clock rate (P1)-Blank 4 GHz Blank1 Add your answer Blank 2 Add your answer Blank 3 Add your answer Blank 4 Add your