dont copy any existing answerI will surely dislike 3-Assume a program requires the execution of 50 x 106 FP instructions, 110 x106 INT instructions, 80 x 106 L/S instructions, and 16 × 106 branch instructions.The CPI for each type of instruction is 4, 2, 3, and 4, respectively. Assume thatthe processor has a 4 GHz clock rate.a. By how much must we improve the CPI of FP instructions if we want the pro-gram to run three times faster?b. By how much must we improve the CPI of L/S instructions if we want the pro-gram to run three times faster?c. By how much is the execution time of the program improved if the CPI of INTand FP instructions is reduced by 40% and the CPI of L/S and Branch is re-duced by 45%?

3-Assume a program requires the execution of 50 × 106 FP instructions, 110 × 106 INT instructions, 80 x 106 L/S instructions, and 16 x 106 branch instructions. The CPI for each type of instruction is 4, 2, 3, and 4, respectively. Assume that the processor has a 4 GHz clock rate.

3-Assume a program requires the execution of 50 × 106 FP instructions, 110 × 106 INT instructions, 80 x 106 L/S instructions, and 16 x 106 branch instructions. The CPI for each type of instruction is 4, 2, 3, and 4, respectively. Assume that the processor has a 4 GHz clock rate.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Assume that a program requires the execution of 125x106 FP (floating point) instructions, 130x106 INT (integer) instructions, 150x106 L/S (load/store) instructions, and 110x106 branching instructions. These instructions have CPIs of 1, 1, 8 and 4, respectively. Assume that the processor has a 5 GHz clock rate. a. Is it possible to run the program twice as fast if we improve the CPI of just the L/S instructions? If so, by how much? Show your calculations. b. What is the Speedup in the execution time of the entire program if the CPI of INT and FP instructions is reduced by 40% and that of L/S and branching instructions is reduced by 50%?
Assume for arithmetic, load/store, and branch instructions, a processor has CPIs for 1, 12, and 5respectively. Also assume that on a single processor a program requires the execution of 2.56*10^9arithmetic instructions, 1.28*10^9 load/store instructions, and 256 million branch instructions. Assumethat each processor has a 2GHz clock frequency. Assume that, as the program is parallelized to run overmultiple cores, the number of arithmetic and load/store instruction per processor is divided by 0.7xp(where p is the number of processors) but the number of branch instructions per processor remains thesame. a- Find the total execution time for the program on 1,2,4, and 8 processors, and show the relativespeedup of the 2,4, and 8 processor result relative to single processor result. b- If the CPI of the arithmetic instruction was doubled, what would be the impact be on theexecution time of the program on 1,2,4, and 8 processors? c- To what should the CPI of load/store instructions be…
Q: Consider three different processors P1, P2, and P3 that support the same instruction set. P1 has a 3 GHz clock rate and a CPI of 1.5. P2 has a 2.5 GHz clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock rate and has a CPI of 2.2. (a) Which processor has the highest performance expressed in instructions per second? Show your calculations. (b) If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions for each processor. (c) We are trying to reduce the execution time by 30% (i.e., execution time is reduced from 10 seconds to 7 seconds). However, this leads to an increase of 20% in the CPI. For each processor, what clock rate should we have to get this time reduction? (Show the calculations you did to answer this question.)
Consider three different processors P1, P2, and P3 executing the same instructionset. P1 has a 3GHz clock rate and a CPI of 1.5. P2 has a 2.5GHz clock rate and a CPI of 1.0, P3has a 4GHz and a CPI of 2.5.a) Which processor has the highest performance expressed in instructions per second?b) If the processors each execute a program in 5 seconds, find the number of cycles and thenumber of instructions.c) We are trying to reduce the execution time by 20% but this leads to an increase of 15% inthe CPI. What clock rate should we have to get this time reduction?
The following table shows the number of instructions for a program with two sequences:Arith Store Load Branch Totala. 650 100 600 50 1400b. 750 250 500 500 2000Assuming that arith instructions take 1 cycle, load and store 5cycles, and branches 2 cycles, and the clock rate is 2 GHz processor.a. Which one is faster?b. Find the CPI for the sequence.b. If the number of load instructions can be reduced by one half,what is the speedup?
ANSWER THE QUSTIONS THAT IS WRITEN OR ON THE PICTURE PLEASE Question 6: Suppose in a program there are 120 instructions, and 6 stages are required for each instruction to be processed. Time required in each stage is equivalent to 1 ps. Calculate the speedup of pipeline parallel processing. Question 7: Suppose in a program there are 300 instructions, and 6 stages are required for each instruction to be processed. Time required in each stage is equivalent to 1 ps. Calculate the efficiency of pipeline parallel processing. Question 8: Consider a 5-stage instruction execution in which, Instruction fetch = ALU operation = Data memory access = 250 ps; and Register read = Register write = 200 ps. Find out the speedup factor for pipelined execution.
A certain microprocessor requires either 2, 4, 8, 12, or 16 machine cycles to perform various operations. A total of 17.5% of its instructions require 2 machine cycles, 12.5% require 4 machine cycles, 35% require 8 machine cycles, 20% require 12 machine cycles, and 15% require 16 machine cycles.Q) Suppose this system requires an extra 16 machine cycles to retrieve an operand from memory. It has to go to memory 30% of the time. What is the average number of machine cycles per instruction for this microprocessor, including its memory fetch instructions?
Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3 GHz clock rate and a CPI of 1.5. P2 has a 2.5 GHz clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock rate and has a CPI of 2.2. a. Which processor has the highest performance expressed in instructions per second? b. If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions. c. We are trying to reduce the execution time by 30% but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?
8. For a single cycle processor, the instruction breakdown of a program is listed as following. add 20% addi 20% not 0% beq 25% Iw SW 25% 10% What is the percentage of instructions that will use the output of sign extend circuit-module? a. b. What is sign extend circuit-module doing when its output is not needed for current instruction?
Assume for a given program, 60% of the executed instructionsare of Class A, 10% are of Class B, and 30% are of Class C. Furthermore,assume that an instruction in Class A requires 3 cycles, an instruction inClass B requires 2 cycles, and an instruction in Class C requires 2 tocomplete. i. Compute the overall CPI for this program.ii. Compute the clock rate of the CPU when the time it takes tocomplete 20 instructions is 1.73 ???????????
Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3.1 GHz clock rate and a CPI (cycles per instruction) of 1.6. P2 has a 2.4 GHz clock rate and a CPI of 1.2. P3 has a 4.0 GHz clock rate and has a CPI of 2.0 If you could answer these id appreciate that greatly. a.Which processor has the highest performance expressed in instructions per second? b.If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions. c.We are trying to reduce the execution time by 30% but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?
Question: Suppose a program of 600 instructions runs on a 2 GHz processor. The frequency of instructions and the clock cycle counts per instruction are given as follows. What is the average CPI of this instruction mix? Operation Frequency Clock Cycles ALU operations 55% 1 Loads/Stores 30% 2 Branches 15% 3 Question: Continue from the previous question. What is the CPU time of the program in nanoseconds? Question: Suppose a processor P has a 2.5 GHz clock rate and a CPI of 1.5. If the processor executes a program in 3 microseconds, find the number of instructions in the program.