Question
What is the cycle time of the above lap-top? a. 1/5005 sec b. 1/ (2 * 10 9 ) sec c. 1/8 sec d. 1/7.71
What is the cycle time of the above lap-top?
a. 1/5005 sec
b. 1/ (2 * 109) sec
c. 1/8 sec
d. 1/7.71 sec
2. The RAM size of the above computer is 8 GHz. If byte-addresing is used, how many bits are required to address the entire RAM? [hint: 1 GB is equal to 230 bytes = 1073741824 bytes]
a. 33-bits, because 8 GB = 23 GB = 23 * 230 bytes = 233 bytes
b. 72-bits, because 8 GB = 8 * 109 GB, and 9 * 8 = 72
c. 32-bits, because this is the word size of the computer
d. 5505-bits, because it is given in the specification
Which of the following will affect the CPU time of a program?
a. Algorithm of the program & Efficiency of the compiler
b. ISA of the computer
c. Architecture of the 8 GB = 23 GB = 23 * 230 bytes = 233 bytes computer
d. All of the above
4. Which of the following is the best metric to compare the performance of a program in two computers with different ISAs?
a. Clock Rate
b. CPI
c. MIPS (where IPS = Clock Rate / CPI)
d. Execution time (= Number of ML instructions * (1 / IPS))
Consider the following Narrative:
There are two machines, M1 and M2 with different ISAs. Three classes of instructions A, B, and C are included in both instruction sets. M1 has a clock rate of 2.25 GHz and M2 has a clock rate of 3 GHz. The number of cycles required for each instruction class in each machines are given below. A typical program is compiled (by similar compilers) into 1 million and 1.2 million instructions in M1 and M2 respectively. The frequencies of instructions in each instruction class in each machine are also given below.
Instruction Class | Machine M1 | Machine M2 | ||
Cycles/Instructions | Frequency | Cycles/Instructions | Frequency | |
A | 1 | 60% | 1 | 50% |
B | 2 | 30% | 3 | 30% |
C | 3 | 10% | 3 | 20% |
CLOCK RATE | 2.25 GHZ | 3 GHZ | ||
# of ML Instructions | 1 billion | 2 billion | ||
Average CPI |
|
| ||
MIPS |
|
| ||
Execution Time |
|
|
5. For this program, what is the average CPI for each machine, M1, and M2?
a. 15 and 20 cycles/instruction
b. 1.5 and 2.0 cycles/instruction
c. 2.25 and 3 cycles/instruction
d. Cannot be calculated
6. What is the ratio of the MIPS of M1 to that of M2?
a. 1.5 : 2
b. 1 : 1
c. 1 : 1.2
d. cannot be determined
7. What is the ratio of execution time in M1 to that of M2? Which machine is better?
a. 2 : 1, M1 is better
b. 2 : 1, M2 is better
c. 1 : 2, M1 is better
d. 1 : 2, M2 is better
8. 11b + 10b = 1110, what is b?
a. 5
b. 7
c. 9
d. 0
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started