High Performance Computing Set 14 MCQs

Q1 | If there is 4X4 Mesh Topology ______ message passing cycles will require complete all to all reduction.

4

6

8

16

Q2 | Following issue(s) is/are the true about sorting techniques with parallel computing.

large sequence is the issue

where to store output sequence is the issue

small sequence is the issue

none of the above

Q3 | Partitioning on series done after ______________

local arrangement

processess assignments

global arrangement

none of the above

Q4 | In Parallel DFS processes has following roles.(Select multiple choices if applicable)

donor

active

idle

passive

Q5 | Suppose there are 16 elements in a series then how many phases will be required to sort the series using parallel odd-even bubble sort?

8

4

5

15

Q6 | Which are different sources of Overheads in Parallel Programs?

interprocess interactions

process idling

all mentioned options

excess computation

Q7 | The ratio of the time taken to solve a problem on a parallel processors to the time required to solve the same problem on a single processor with p identical processing elements.

the ratio of the time taken to solve a problem on a single processor to the time required to solve the same problem on a parallel computer with p identical processing elements.

the ratio of the time taken to solve a problem on a single processor to the time required to solve the same problem on a parallel computer with p identical processing elements

the ratio of number of multiple processors to size of data

none of the above

Q8 | CUDA helps do execute code in parallel mode using __________

cpu

gpu

rom

cash memory

Q9 | In thread-function execution scenario thread is a ___________

work

worker

task

none of the above

Q10 | In GPU Following statements are true

grid contains block

block contains threads

all the mentioned options.

sm stands for streaming multiprocessor

Q11 | Computer system of a parallel computer is capable of_____________

decentralized computing

parallel computing

centralized computing

all of these

Q12 | In which application system Distributed systems can run well?

hpc

distrubuted framework

hrc

none of the above

Q13 | A pipeline is like .................... ?

an automobile assembly line

house pipeline

both a and b

a gas line

Q14 | Pipeline implements ?

fetch instruction

decode instruction

fetch operand

all of above

Q15 | A processor performing fetch or decoding of different instruction during the execution of another instruction is called ______ ?

super-scaling

pipe-lining

parallel computation

none of these

Q16 | VLIW stands for ?

very long instruction word

very long instruction width

very large instruction word

very long instruction width

Q17 | Which one is not a limitation of a distributed memory parallel system?

higher communication time

cache coherency

synchronization overheads

none of the above

Q18 | Which of these steps can create conflict among the processors?

synchronized computation of local variables

concurrent write

concurrent read

none of the above

Q19 | Which one is not a characteristic of NUMA multiprocessors?

it allows shared memory computing

memory units are placed in physically different location

all memory units are mapped to one common virtual global memory

processors access their independent local memories

Q20 | Which of these is not a source of overhead in parallel computing?

non-uniform load distribution

less local memory requirement in distributed computing

synchronization among threads in shared memory computing

none of the above

Q21 | Systems that do not have parallel processing capabilities are?

sisd

simd

mimd

all of the above

Q22 | How does the number of transistors per chip increase according to Moore ´s law?

quadratically

linearly

cubicly

exponentially

Q23 | Parallel processing may occur?

in the instruction stream

in the data stream

both[a] and [b]

none of the above

Q24 | To which class of systems does the von Neumann computer belong?

simd (single instruction multiple data)

mimd (multiple instruction multiple data)

misd (multiple instruction single data)

sisd (single instruction single data)

Q25 | Fine-grain threading is considered as a ______ threading?

instruction-level

loop level

task-level

function-level