Suppose we have two implementations: Machine A has a clock cycle time of 10 ns. and a CPI of 2.0. Machine B has a clock cycle time of 20 ns. and a CPI of 1.2. Which machine is faster for this program, and how much in percentage? Consider that the total instruction in the program is 1x10^9 or about 1,000,000,000 set of instructions since the cycle time is running in nanoseconds.

Suppose we have two implementations: Machine A has a clock cycle time of 10 ns. and a CPI of 2.0. Machine B has a clock cycle time of 20 ns. and a CPI of 1.2. Which machine is faster for this program, and how much in percentage? Consider that the total instruction in the program is 1x10^9 or about 1,000,000,000 set of instructions since the cycle time is running in nanoseconds.

Name: Suppose we have two implementations:Machine A has a clock cycle time o
Uploaded: 2024-03-20T06:51:23.000Z
Channel: Bartleby
Description: Suppose we have two implementations:Machine A has a clock cycle time of 10 ns. and a CPI of 2.0. Machine B has aclock cycle time of 20 ns. and a CPI of 1.2. Which machine is faster for thisprogram, and how much in percentage?Consider that the total i

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...

See similar textbooks

Similar questions

Consider a machine with three instruction classes and CPI measurements as follows: Instruction class CPI of the instruction class A 2 B 5 C 7 Suppose that we measured the code for a given program in two different compilers and obtained the following data: Code sequence Instruction counts (in millions) A B C 1 15 5 3 2 25 2 2 Assume that the machine’s clock rate is 500 MHz. Which code sequence will execute faster according to MIPS? How much according to execution time of each code sequence?
2. Suppose we have two implementations of the same instruction set architecture.Computer A has a clock cycle time of 250 ps and a CPI of 2.0 for some programand computer B has a clock cycle time of 500 ps and a CPI of 1.2 for the sameprogram. Which computer is faster for this program and by how much?
Consider having a program that runs in 50 s on computer A, which has a 500 MHz clock. We would like to run the same program on another machine, B, in 20 s. If machine B requires 2.5 times as many clock cycles as machine A for the same program, what clock rate must machine B have in MHz?
Suppose we have two implementations of the same instruction set architecture. Computer A has a clock cycle time of 200 ps and a CPI of 2 for some program, and computer B has a clock cycle time of 500 ps and a CPI of 1.25 for the same program. Which computer is faster for this program, and by how much?
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?
Consider two different implementations, M1 and M2, of the same instruction set. There arethree classes of instructions (A, B, and C) in the instruction set. M1 has a clock rate of 2.0GHz and M2has a clock rate of 2.5GHz. The average number of cycles for each instruction class and their frequencies(for a typical program) are as follows:Instruction Class M1-Cycles/InstructionClass M2 -Cycles/InstructionClasss FrequencyA 1 2 60%B 3 2 30%C 4 3 10%(a) Calculate the average CPI for each machine, M1, and M2.(b) Calculate the average MIPS ratings for each machine, M1 and M2.(c) Which machine has a smaller MIPS rating? Which individual instruction class CPI do you needto change, and by how much, to have this machine have the same or better performance as themachine with the higher MIPS rating (you can only change the CPI for one of the instructionclasses on the slower machine)?
Please,Consider two different implementations, M1 and M2, of the same instruction set. There arethree classes of instructions (A, B, and C) in the instruction set. M1 has a clock rate of 2.0GHz and M2has a clock rate of 2.5GHz. The average number of cycles for each instruction class and their frequencies(for a typical program) are as follows:Instruction Class M1-Cycles/InstructionClass M2 -Cycles/InstructionClasss FrequencyA 1 2 60%B 3 2 30%C 4 3 10%(a) Calculate the average CPI for each machine, M1, and M2.(b) Calculate the average MIPS ratings for each machine, M1 and M2.(c) Which machine has a smaller MIPS rating? Which individual instruction class CPI do you needto change, and by how much, to have this machine have the same or better performance as themachine with the higher MIPS rating (you can only change the CPI for one of the instructionclasses on the slower machine)?.
Two algorithms A and B report time complexities expressed by the functions n2and 2n , respectively. They are to be executed on a machine M that consumes 10–6 s to execute an instruction. What is the time taken by the algorithms to complete their execution on machine A for an input size of 50? If another machine N that is 10 times faster than machine M is provided for the execution, what is the largest input size that can be handled by the two algorithms on machine N? What are yourobservations?
Suppose a RISC machine uses overlapping register windows for passing parameters between procedures. The machine has 298 registers. Each register window has 32 registers, of which 10 are global variables and 10 are local variables.Q) How many register windows would be available for use?
Suppose a RISC machine uses overlapping register windows for passing parameters between procedures. The machine has 298 registers. Each register window has 32 registers, of which 10 are global variables and 10 are local variables.Q) How many registers would be available for use by output parameters?
On a uniprocessor, portion A of program P consumes 24 seconds, while portion B consumes 822 seconds. On a parallel computer, moderately serial portion A speeds up 4 times, while perfectly parallel portion B speeds up by the number of processors. 1- What is the speedup of program P on 1,024 processors? _______ times 2- How many processors are required to achieve at least half the theoretical maximum possible speedup on P?
Suppose that the execution time of a given program on a single processor is 9.5 ms. If you run this program on a system having 18 independent processors, you observe an overall speedup of 1.1. Using Amdahl’s Law, what must have been the fraction of the program that could be executed in parallel? (Express the answer in decimal form, i.e., if 50% of the program can be enhanced, enter 0.5. Round to three decimal places)