MYPROGRAMMINGLAB WITH PEARSON ETEXT
8th Edition
ISBN: 9780134225340
Author: Deitel
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 19.5E
(Protected vs. Private Base Classes) Some programmers prefer not to use protected access because they believe it breaks the encapsulation of the base class. Discuss the relative merits of using protected access vs. using private access in base classes.
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using rapid miner how to creat decison trea for all attribute and another one with delete one or more of them also how i know the weight of each attribute and what that mean in impact the result
Q.1. Architecture performance [10 marks]
Answer
A certain microprocessor requires either 2, 4, or 6 machine cycles to perform various operations.
⚫ (40+g+f)% require 2 machine cycles,
⚫ (30-g) % require 4 machine cycles, and
⚫ (30-f)% require 6 machine cycles.
(a) What is the average number of machine cycles per instruction for this microprocessor?
Answer
(b) What is the clock rate (machine cycles per second) required for this microprocessor to be a
"1000 MIPS" processor?
Answer
(c) Suppose that 35% of the instructions require retrieving an operand from memory which
needs an extra 8 machine cycles. What is the average number of machine cycles per
instruction, including the instructions that fetch operands from memory?
Q.2. Architecture performance [25 marks]
Consider two different implementations, M1 and M2, of the same instruction set. M1 has a clock
rate of 2 GHz and M2 has a clock rate of 3.3 GHz. There are two classes of instructions with the
following CPIs:
Class
A
CPI for M1
CPI for M2
2.f
1.g
B
5
3
C
6
4
Note that the dots in 2 fand 1.g
indicate decimal points and not
multiplication.
a) What are the peak MIPS performances for both machines?
b) Which implementation is faster, if half the instructions executed in a certain program are from
class A, while the rest are divided equally among classes B and C.
c) What speedup factor for the execution of class-A instructions would lead to 20% overall
speedup?
d) What is the maximum possible speedup that can be achieved by only improving the execution
of class-A instructions? Explain why.
e) What is the clock rate required for microprocessor M1 to be a "1000 MIPS" (not peak MIPS)
processor?
Chapter 19 Solutions
MYPROGRAMMINGLAB WITH PEARSON ETEXT
Ch. 19 - Prob. 19.3ECh. 19 - (Inheritance Advantage) Discuss the ways in which...Ch. 19 - (Protected vs. Private Base Classes) Some...Ch. 19 - (Student Inheritance Hierarchy) Draw an...Ch. 19 - Prob. 19.7ECh. 19 - (Quadrilateral Inheritance Hierarchy) Draw an...Ch. 19 - 19.9 (Package Inheritance Hierarchy)...Ch. 19 - (Account Inheritance Hierarchy) Create an...
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