Assume a program requires the execution of 75 x106 FP instructions, 112 ×106 INT instructions, 88 x106 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 x106 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%?

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 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 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%?
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 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. 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%?
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: Instruction Type Instruction Count Cycles per Instruction Integer arithmetic 45,000 1 Data transfer 32,000 2 Floating point 15,000 Control transfer 8000 Determine the effective CPI? 2. 2.
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 ???????????
Given the following memory addresses and opcodes to be executed, if the current value of the Instruction Register (IR) is EBOA, what is the value of the Instruction Pointer Register (RIP) after the instruction in IR is executed? 00000000 EBOA 00000002 B805000000 00000007 BF01000000 0000000C BAODO00000 00000002 00000007 0000000A 0000000C
Let us assume a program requires the execution of 50 million floating-point instructions and 100 million Integer instructions. The average number of clock cycles per instruction for each type of instruction is 2, and 1 respectively.
SP=1239H, SS=9876H, the physical address is AAAFOH Non of them 1BC06H 0AAAFH 99999H if BX=1000, DS=0400, and AL=EDH, for the following instruction: MOV [BX] + 1234H, AL. the physical address is 6324H O 4244H 4234H 6234H 6243H O
If DS=7F0OH, BX=37EH and AX=1F05H, find the value of (AL) after executing (XLAT) instruction, if you have the following memory contents:* 7AH 7F386H 66H 7F38SH BOH 7F384H 79H 7F383H F4H 7F382H 8CH 7F381H F4H 7AH 79H 66H BOH 8CH What is the missing instruction in the following code if you are required to calculate (A7H/15H) ? - MOV Bх, 15H Mον AX , A7Η Div BX CWD MOV AH, O MOV BX, AX MOV DX, AX MOV DX,0 CBW XLAT O O O O O
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 and B are 2.0 and 1.0 respectively for the same program. Which computer is faster and how much? Va A is 1.33 times faster than B b) B is 1.22 times faster than A c) A is 1.23 times faster thanB d) B is 1.33 times faster than A