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This set of High Performance Computing HPC Multiple Choice Questions & Answers (MCQs) focuses on High Performance Computing Set 16
Q1 | The___ time collectively spent by all the processing elements Tall = p TP?
- total
- average
- mean
- sum
Q2 | The dual of one-to-all broadcast is ?
- all-to-one reduction
- all-to-one receiver
- all-to-one sum
- none of above
Q3 | A hypercube has?
- 2d nodes
- 2n nodes
- n nodes
Q4 | 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
Q5 | 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
Q6 | The gather operation is exactly the inverse of the ?
- scatter operation
- broadcast operation
- prefix sum
- reduction operation
Q7 | Parallel algorithms often require a single process to send identical data to all other processes or to a subset of them. This operation is known as _________?
- one-to-all broadcast
- all to one broadcast
- one-to-all reduction
- all to one reduction
Q8 | In which of the following operation, a single node sends a unique message of size m to every other node?
- gather
- scatter
- one to all personalized communication
- both a and c
Q9 | Gather operation is also known as ________?
- one to all personalized communication
- one to all broadcast
- all to one reduction
- all to all broadcast
Q10 | Conventional architectures coarsely comprise of a?
- a processor
- memory system
- data path.
- all of above
Q11 | Data intensive applications utilize?
- high aggregate throughput
- high aggregate network bandwidth
- high processing and memory system performance.
- none of above
Q12 | A pipeline is like?
- overlaps various stages of instruction execution to achieve performance.
- house pipeline
- both a and b
- a gas line
Q13 | Scheduling of instructions is determined?
- true data dependency
- resource dependency
- branch dependency
- all of above
Q14 | VLIW processors rely on?
- compile time analysis
- initial time analysis
- final time analysis
- mid time analysis
Q15 | Memory system performance is largely captured by?
- latency
- bandwidth
- both a and b
- none of above
Q16 | The fraction of data references satisfied by the cache is called?
- cache hit ratio
- cache fit ratio
- cache best ratio
- none of above
Q17 | A single control unit that dispatches the same Instruction to various processors is?
- simd
- spmd
- mimd
- none of above
Q18 | The primary forms of data exchange between parallel tasks are?
- accessing a shared data space
- exchanging messages.
- both a and b
- none of above
Q19 | The First step in developing a parallel algorithm is?
- to decompose the problem into tasks that can be executed concurrently
- execute directly
- execute indirectly
- none of above
Q20 | The Owner Computes Rule generally states that the process assigned a particular data item are responsible for?
- all computation associated with it
- only one computation
- only two computation
- only occasionally computation
Q21 | A simple application of exploratory decomposition is?
- the solution to a 15 puzzle
- the solution to 20 puzzle
- the solution to any puzzle
- none of above
Q22 | Speculative Decomposition consist of ?
- conservative approaches
- optimistic approaches
- both a and b
- only b
Q23 | Task characteristics include?
- task generation.
- task sizes.
- size of data associated with tasks.
- all of above.
Q24 | The dual of one-to-all broadcast is?
- all-to-one reduction
- all-to-one receiver
- all-to-one sum
- none of above
Q25 | A hypercube has?
- 2d nodes
- 3d nodes
- 2n nodes
- n nodes