a program runs in 10 seconds on computer A, which has a 4 GHz clock. We are trying to help a computer designer build a computer, B, which will run this program in 6 seconds. The designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.2 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?

a program runs in 10 seconds on computer A, which has a 4 GHz clock. We are trying to help a computer designer build a computer, B, which will run this program in 6 seconds. The designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.2 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?

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

If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the fetch cycle is 40% of the processor cycle time, what memory access speed is required to implement load operations with zero wait states and load operations with two wait states?
Our favorite program runs in 8 seconds on computer A, which has a 2 GHz clock. We are trying to help a computer designer build a computer, B, that will run this program in 4 seconds. The designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.3 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?
Our favorite program runs in 10 seconds on computer A, which has a 2 GHz clock. We are trying to help a computer designer build a computer, B, which will run this program in 6 seconds. Th e designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.2 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?
A program runs in 15 seconds on computer X, which has a 2 Ghz clock. You are required to help a computer designer to build another computer, Y, that will run the program in 10 seconds. The designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer Y to require 1.5 times as many clock cycles as computer for this program. What clock rate should you tell the designer to target? Select one: a.0.3 Ghz b.3 Ghz c.9 Ghz d.8 Ghz
3. Our favorite program runs in 10 seconds on computer A, which has a 2 GHz clock. We are trying to help a computer designer build a computer, B, which will run this program in 6 seconds. Te designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.2 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?
1. Anna designs a 2.5 GHz processor where two important programs, A and B, take onesecond each to execute. Each program has a CPI of 1.25. Elsa is tasked with designingthe company's next-generation processor and she comes up with an idea that improvesthe CPI of A to 1.1 and the CPI of B to 0.9. But the idea is so complex that theprocessor can only be implemented with a cycle time of 0.5 ns. Does Elsa's newprocessor out-perform Anna's processor on program A? How about on program B?2. Consider two different implementations of the same instruction set architecture. Theinstructions can be divided into four classes according to their CPI (class A, B, C, andD). P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, 3, and 3, and P2 with a clockrate of 3 GHz and CPIs of 1, 2, 2, and 2.Given a program with a dynamic instructioncount of 106 instructions divided into classes as follows: 10% class A, 20% class B,50% class C, and 20% class D, which is faster: P1 or P2?
3. Our favorite program runs in 10 seconds on computer A, which has a 2 GHz clock. We are trying to help a computer designer build a computer, B, which will run this program in 6 seconds. T e designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.2 times as many clock cycles as computer A for this program. What clock rate should we tell the designer to target?
Our favorite program runs in 10 seconds on computer A, which has a 2 GHzclock. We are trying to help a computer designer build a computer, B, whichwill run this program in 6 seconds. T e designer has determined that asubstantial increase in the clock rate is possible, but this increase will affect therest of the CPU design, causing computer B to require 1.2 times as many clockcycles as computer A for this program. What clock rate should we tell thedesigner to target?
The CPU design team is designing an instruction set with three classes of instructions. Parameters are given in the following table. Consider a program with 65% ALU instructions, 25% memory access instructions, and 10% control instructions. What is the average CPI for this CPU? Clock Rate 4GHz CPI for ALU Inst. 6 CPI for Memory Inst. 8 CPI for Control Inst. 2
Alice designs a 2 GHz processor where two important programs, A and B, take one second each to execute. Each program has a CPI of (1.5). Elena is tasked with designing the company's next-generation processor. She comes up with an idea that improves the CPI of A to 1.1 and the CPI of B to 1.4. But the idea is so complex that the processor can only be implemented with a cycle time of 0.6 ns. Does Elena's new processor out-perform Alice's processor on program A? How about on program B?
A program runs in 20 sec in machine A with a clock speed of 200 MHz. A computer architecture wants to build a machine B which will run this program in 6 seconds. The architect has delivered that a substantial increase in clock rate is possible, but this will affect the design of the rest of the CPU causing machine B to require 1.2 times as many clock cycles as machine A for this program. What clock rate should be targeted for the best design in MHz ?
A Program is running on a processor P1 and it has the following parameters: Ic is equal to 20,000,000 instructions Average CPI is 3 cycles/instruction CPU frequency is 500 MHz A new processor P2 is used with the following parameters and the program is executed on this new processor now: Ic is equal to 18,000,000 instructions New average CPI: 3.5 cycles/instruction CPU new frequency: 600 MHz Which processor is faster? Compute the speedup.