Assignment 01
- 1. 1 Assignment 01 Computer Architecture Submitted By: Md. Ashikur Rahman Khan 152-35-1185 B Submitted To: SHEIKH SHAH MOHAMMAD MOTIUR RAHMAN Lecturer Department of SWE Daffodil International University Date of submission: 13-Oct-17
- 2. 2 Question a: State the operations performed by a processor. Ans: Q b: What you understand by 64 bit processor? Ans:
- 3. 3 Q c: A compiler designer is trying to decide between two code sequences for a particular machine. Based on the hardware implementation, there are three different classes of instructions: class A, class B, and class C, and they require one, two, and three cycles per instruction, respectively. The first code sequence has 5 instructions: 2 of A, 1 of B, and 2 of C The second sequence has 6 instructions: 4 of A, 1 of B, and 1 of C Compute the CPU cycles for each sequence. Which sequence is faster? What is the CPI for each sequence? Ans:
- 4. 4 Q d: Define CPU Execution Time with possible equation. Ans:
- 5. 5 Q e: State the functions and operations of a computer. Ans:
- 6. 6 Q f: Suppose we have two implementations of the same Instructions For a given program, Machine A has a clock cycle time of 275 ps and a CPI of 2.0,Machine B has a clock cycle time of 450 ps and a CPI of 1.2 Which machine is faster for this program, and by how much? Ans:
- 7. 7 Q g: Which parameters are used to evaluate the processor? Ans:
- 8. 8 Q h: A benchmark program is run on a 40 MHz processor.The executed program consists of 100,000 instruction executions, with the following instruction mix and clock cycle count: Determine the effective CPI, MIPS rate, and execution time for this program. Ans:
- 9. 9 Q i: Two different compilers are being tested on the same program for a 4 GHz machine with three different classes of instructions: Class A, Class B, and Class C, which require 1, 2, and 3 cycles, respectively. The instruction count produced by the first compiler is 5 billion Class A instructions, 1 billion Class B instructions, and 1 billion Class C instructions. The second compiler produces 10 billion Class A instructions, 1 billion Class B instructions, and 1 billion Class C instructions. Which compiler produces a higher MIPS? Which compiler produces a better execution time? Ans:
- 10. 10 Q j: Draw the functional view of a computer. Ans:
- 11. 11 Q k: Consider the execution of a program which results in the execution of 2 million instructions on a 400-MHz processor. The program consists of four major types of instructions. The instruction mix and the CPI for each instruction type are given below based on the result of a program trace experiment: Determine the CPI and MIPS rate. Ans:
- 12. 12 Q l: A program runs in 10 seconds on computer X with 2 GHz clock rate 1.What is the number of CPU cycles on computer X ? We want to design computer Y to run same program in 6 seconds But computer Y requires 10% more cycles to execute program 2.What is the clock rate for computer Y ? 3. Comment on the results. Ans:
- 13. 13