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Questions Bank (1234352 total)
A CPU has an instruction pipeline with 10 stages. If a branch misprediction occurs 10% of the time and causes a 5-cycle stall, what is the effective CPI assuming an ideal CPI of 1.2?
In corespondenta cu numarul afisat in stanga fiecarei figuri precizati:
a. denumirea tipului de rulment prezentat in figura
b. tipul sarcinilor preluate
1
2
Care dintre rulmentii prezentati in figurile de mai jos:
a pot prelua momente de rasturnare in lagar
b permit realizarea unui lagar oscilant
Suppose a CPU executes a program in 4 seconds. If the clock speed is doubled while keeping the CPI constant, what will be the new execution time?
Pentru sistemele de lagaruire prezentate in figurile A, B, C, D, selectati dintre schemele cinematice prezentate in figurile 1, 2, 3, 4, 5, 6 reprezentarea corecta.
A
B
C
D
1
2
3
4
5
6
In corespondenta cu numarul afisat in stanga fiecarei figuri precizati:
a. denumirea tipului de rulment prezentat in figura
b. tipul sarcinilor preluate
12
Pentru sistemele de lagaruire prezentate in figurile A, B, C, D, selectati dintre schemele cinematice prezentate in figurile 1, 2, 3, 4, 5, 6 reprezentarea corecta.
A
B
C
D
1
2
3
4
5
6
A system has a base execution time of 10 seconds. After applying compiler optimizations, the number of executed instructions is reduced by 20%, but the CPI increases by 10%. Assuming the clock speed remains constant, what is the new execution time?
A processor executes a program with the following instruction mix:
40% ALU instructions (CPI = 1)
30% Load/Store instructions (CPI = 2)
30% Branch instructions (CPI = 3)
If the processor has a clock rate of 2 GHz, what is the effective CPI?
If a CPU has a clock rate of 3.5 GHz and an average CPI of 1.8, how long does it take to execute a program with 500 million instructions?