HomeHPC MCQHigh performance computing MCQ Unit-3 | HPC MCQ

High performance computing MCQ Unit-3 | HPC MCQ

High Performance Computing MCQ Questions and Answers UNIT – 3 What is High performance computing ? HPC – High Performance Computing is the use of parallel processing for running advanced application programs efficiently, reliably and quickly. The term applies especially to systems that function above a teraflop or 1012 floating-point operations per second. The term HPC is occasionally used as a synonym for supercomputing, although technically a supercomputer is a system that performs at or near the currently highest operational rate for computers. Some supercomputers work at more than a petaflop or 1015 floating-point operations per second.

High performance computing mcq sppu

High performance computing multiple choice questions UNIT -3

1. The primary and essential mechanism to support the sparse matrices is

Gather-scatter operations
Gather operations
Scatter operations
Gather-scatter technique

1. In the gather operation, a single node collects a ———

Unique message from each node
Unique message from only one node
Different message from each node
None of Above

Answer: Unique message from each node

1. In the scatter operation, a single node sends a ————

Unique message of size m to every other node
Different message of size m to every other node
Different message of different size m to every other node
All of Above

Answer: Unique message of size m to every other node

1. Is All to all Bradcasting is same as All to all personalized communication?

Yes
No

1. Is scatter operation is same as Broadcast?

Yes
No

1. All-to-all personalized communication is also known as

Total Exchange
Personal Message
Scatter
Gather

1. By which way, scatter operation is different than broadcast

Message size
Number of nodes
Same
None of above

1. The gather operation is exactly the _ of the scatter operation

Inverse
Reverse
Multiple
Same

1. The gather operation is exactly the inverse of the_

Scatter operation
Prefix Sum
Reduction operation

hpc mcq questions

1. The dual of one-to-all broadcast is all-to-one reduction. True or False?

TRUE
FALSE

1. A binary tree in which processors are (logically) at the leaves and internal nodes are routing nodes.

TRUE
FALSE

1. Group communication operations are built using point-to-point messaging primitives

TRUE
FALSE

1. Communicating a message of size m over an uncongested network takes time ts + tmw

True
False

1. Parallel programs: Which speedup could be achieved according to Amdahl´s law for infinite number of processors if 5% of a program is sequential and the remaining part is ideally parallel?

Infinite speedup
5
20
None of above

1. Shift register that performs a circular shift is called

Invalid Counter
Valid Counter
Ring
Undefined

1. 8 bit information can be stored in

2 Registers
4 Registers
6 Registers
8 Registers

1. The result of prefix expression * / b + – d a c d, where a = 3, b = 6, c = 1, d = 5 is

0
5
10
8

1. The height of a binary tree is the maximum number of edges in any root to leaf path. The maximum number of nodes in a binary tree of height h is?

2h – 1
2h – 1 – 1
2h + 1 – 1
2 * (h+1)

Answer: 2h + 1 – 1

1. A hypercube has_

2^d nodes
2d nodes
2n Nodes
N Nodes

1. The Prefix Sum Operation can be implemented using the_

Scatter Kernel

21.In the scatter operation_

Single node send a unique message of size m to every other node
Single node send a same message of size m to every other node
Single node send a unique message of size m to next node
None of Above

Answer: Single node send a unique message of size m to every other node

1. In All-to-All Personalized Communication Each node has a distinct message of size m for every other node

True
False

1. A binary tree in which processors are (logically) at the leaves and internal nodes are
routing nodes.

True
False

1. In All-to-All Broadcast each processor is thesource as well as destination.

True
False

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