3-Assume a program requires the execution of 50 × 106 FP instructions, 110 x 106 INT instructions, 80 × 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. a. By how much must we improve the CPl 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 INT and 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 x 106 INT instructions, 80 × 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. a. By how much must we improve the CPl 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 INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is re- duced by 45%?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 2PE: If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the...

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Assume a program requires the execution of 75 x106 FP instructions, 112 x106 INT instructions, 88 ×106 L/S instructions, and 12 x 106 branch instructions. The CPI for each type of instruction is 1, 3, 4, and 2, respectively. Assume that the processor has a 2 GHz clock rate. a) By how much must we improve the CPI of FP instructions if we want the program to run two times faster? b) By how much must we improve the CPI of L/S instructions if we want the program to run two times faster? c) By how much is the execution time of the program improved if the CPI of INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is reduced by 30%?
Assume a program requires the execution of 75 x106 FP instructions, 112 ×106 INT instructions, 88 ×106 L/S instructions, and 12 × 106 branch instructions. The CPI for each type of instruction is 1, 3, 4, and 2, respectively. Assume that the processor has a 2 GHz clock rate. a) By how much must we improve the CPI of FP instructions if we want the program to run two times faster? b) By how much must we improve the CPI of L/S instructions if we want the program to run two times faster? c) By how much is the execution time of the program improved if the CPI of INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is reduced by 30%?
3-Assume a program requires the execution of 50 x 106 FP instructions, 110 x 106 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 that the 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 INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is re- duced by 45%?
Assume a program requires the execution of 50 × 106 FP instructions, 110 × 106 INT instructions, 80 × 106 L/S instructions, and 16 × 106 branch instructions. Th e CPI for each type of instruction is 1, 1, 4, and 2, respectively. Assume that the processor has a 2 GHz clock rate. By how much must we improve the CPI of FP instructions if we want the program to run two times faster? By how much must we improve the CPI of L/S instructions if we want the program to run two times faster? By how much is the execution time of the program improved if the CPI of INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is reduced by 30%?
Assume a program requires the execution of 75 ×106 FP instructions, 112 ×106INT instructions, 88 ×106 L/S instructions, and 12 × 106 branch instructions.The CPI for each type of instruction is 1, 3, 4, and 2, respectively. Assume thatthe processor has a 2 GHz clock rate.a) By how much must we improve the CPI of FP instructions if we wantthe program to run two times faster?b) By how much must we improve the CPI of L/S instructions if we wantthe program to run two times faster?c) By how much is the execution time of the program improved if theCPI of INT and FP instructions is reduced by 40% and the CPI of L/Sand Branch is reduced by 30%?
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 a program requires the execution of 50 × 106 FP instructions, 110 × 106 INT instructions, 80 × 106 L/S instructions, and 16 × 106 branch instructions. The CPI for each type of instruction is 1, 1, 4, and 2, respectively. Assume that the processor has a 2 GHz clock rate. By how much must we improve the CPI of FP instructions if we want the program to run two times faster? By how much must we improve the CPI of L/S instructions if we want the program to run two times faster? By how much is the execution time of the program improved if the CPI of INT and FP instructions is reduced by 40% and the CPI of L/S and branch is reduced by 30%? (FP: Floating Point, INT: Integer, L/S: Load Store)
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 ???????????
Two processors A and B have clock rate of 700 MHz and 900 MHz respectively. Suppose A can execute an instruction with an average CPI equal to 3 and B can execute with an average CPI of 5. For the execution of same instruction, which processor is faster? Select one: a. None b. B c. Both are equally fast d. A
1. A program has 5 billion instructions is running with a CPI of 2 on a machine with a 2.5GHZ frequency, what is the execution time in seconds? 2. In a program 40% of the instructions have a CPI of 1, 25% have a CPI of 2, 20% have a CPI of 3 and 15% have a CPI of 5. Find the number of instructions per second if the machine is running at 900 MHz? 3. If 5 processors can run a program 2 times faster than a single processor, how much faster than a single processor can 10 processors run the same program? 4. If the base machine can run the 5 SPEC benchmarks in 1Os, 20s, 30s, 40s and 60s, whereas the target machine can run them in 5s, 1Os, 5s, 10s and 40s, respectively, what is the SPEC value for this scenario?
ote: sclon Sundwame OT J01n0 Consider the two computers A and B with the clock cycle times 100 ps and 150 ps respectively for some program. The number of cycles per instruction (CPI) for A rnd B are 2.0 and 1.0 respectively for the same program. Which computer is faster and how much? a) A is 1.33 times faster than B b) Bis 1.22 times faste than A c) Ais 1.23 times faster than B d) Bis 1.33 times faster than A Answer Submit
Question Q: For a basic computer that is currently running in its timing TO of execution for an instruction that is located in memory location 366. The content of AC is (212) and the content of memory locations are as follow: [memory location: content]: [365:9473], [366:7010], [367:5431], [368:4620], [431:1A23], [620:C80D]. Answer the following questions that examine the contents of PC, AR, AC, DR and IR after the end of execution for the next instruction. (Note: all numbers are in Hexadecimal.) p 4:33 The content of AC after the end of * :execution for the next instruction is 700 O 620 320 O None of the choices O 4:35 /