Home work 1.2

Chapter 1 : Computer Abstractions and Technology

What is the execution time for this program:

A Program is running on a specific machine with the

following parameters:

	Program 1	Program 2	Program 3
Total instruction count	15,000,000 instructions =15 x106	1,000,000 Instruction	10,000,000 Instruction
Average CPI for the program	4 cycles/instruction	5.5 cycle/instruction	2 cycle/instruction
CPU clock rate	150 MHz = 150 x 106Hz	Clock Cycle Time : 10 ps.	1 GHz
the execution time	15x106 x 4 x 1/150 x 10-6 = 1 x 4 x 15/150 = 4x1/10=4/10=0.4 second	1x106 x 5.5 x 10 =55

CPU time = Instruction count x CPI x Clock cycle

MIPS EXAMPLE

Class	A	B	C	D
CPI for class	4	7	2	3
	Instruction count in Millions
IC in sequence 1	5	2	3	6
IC in sequence 2	8	6	1	4

Assume the clock cycle time = 10ns find CPU time and MIPS for each sequence?

Mome work 1.2 Gopher 1 i Cempurter Ahnranions ant ferbuidner What th the eatcution time for this progart A Program f ruming on a fecciec matine ad the folowing parametersi GrU time a batructios count a CFt x Mook oprle Mrgs EXRAFLE Assume the check rycle time a 1Ons fird cry thine and ynzf for each yequence? Home work 1.2 Chapter 1 : Computer Abstractions and Technolocy What is the execution time for this prograrn: A Program is running on a specitic machine with the following parameters: CPU time = Instruction count x CPI x Clock cycle MIPS EXAMPAE Assume the clock cycle time a 10ns find CPU time and MiPs for each sequence? youred afte 1I Chapter-1 Mome work 1.2 Gopher 1 i Cempurter Ahnranions ant ferbuidner What th the eatcution time for this progart A Program f ruming on a fecciec matine ad the folowing parametersi GrU time a batructios count a CFt x Mook oprle Mrgs EXRAFLE Assume the check rycle time a 1Ons fird cry thine and ynzf for each yequence? Home work 1.2 Chapter 1 : Computer Abstractions and Technolocy What is the execution time for this prograrn: A Program is running on a specitic machine with the following parameters: CPU time = Instruction count x CPI x Clock cycle MIPS EXAMPAE Assume the clock cycle time a 10ns find CPU time and MiPs for each sequence? youred afte 1I Chapter-1