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
- The primary and essential mechanism to support the sparse matrices is
Gather-scatter operations
Gather operations
Scatter operations
Gather-scatter technique
Answer: Gather-scatter operations
- 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
- 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
- Is All to all Bradcasting is same as All to all personalized communication?
Yes
No
Answer: No
- Is scatter operation is same as Broadcast?
Yes
No
Answer: No
- All-to-all personalized communication is also known as
Total Exchange
Personal Message
Scatter
Gather
Answer: Total Exchange
- By which way, scatter operation is different than broadcast
Message size
Number of nodes
Same
None of above
Answer: Message size
- The gather operation is exactly the _ of the scatter operation
Inverse
Reverse
Multiple
Same
Answer: Inverse
- The gather operation is exactly the inverse of the_
Scatter operation
Broadcast operation
Prefix Sum
Reduction operation
Answer: Scatter operation
hpc mcq questions
- The dual of one-to-all broadcast is all-to-one reduction. True or False?
TRUE
FALSE
Answer: TRUE
- A binary tree in which processors are (logically) at the leaves and internal nodes are routing nodes.
TRUE
FALSE
Answer: TRUE
- Group communication operations are built using point-to-point messaging primitives
TRUE
FALSE
Answer: TRUE
- Communicating a message of size m over an uncongested network takes time ts + tmw
True
False
Answer: True
- 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
Answer: 20
- Shift register that performs a circular shift is called
Invalid Counter
Valid Counter
Ring
Undefined
Answer: Ring
- 8 bit information can be stored in
2 Registers
4 Registers
6 Registers
8 Registers
Answer: 8 Registers
- The result of prefix expression * / b + – d a c d, where a = 3, b = 6, c = 1, d = 5 is
0
5
10
8
Answer: 10
- 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
- A hypercube has_
2^d nodes
2d nodes
2n Nodes
N Nodes
Answer: 2^d nodes
Parallel computing mcq with answers
- The Prefix Sum Operation can be implemented using the_
All-to-all broadcast kernel
All-to-one broadcast kernel
One-to-all broadcast Kernel
Scatter Kernel
Answer: All-to-all broadcast 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
- In All-to-All Personalized Communication Each node has a distinct message of size m for every other node
True
False
Answer: True
- A binary tree in which processors are (logically) at the leaves and internal nodes are
routing nodes.
True
False
Answer: True
- In All-to-All Broadcast each processor is thesource as well as destination.
True
False
Answer: True
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