High Performance Computing MCQs with answers Page - 16

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Q. how many basic communication operations are used in matrix vector multiplication

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 4

A

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Q. In DNS algorithm of matrix multiplication it used

  • (A) 1d partition
  • (B) 2d partition
  • (C) 3d partition
  • (D) both a,b

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Q. In the Pipelined Execution, steps contain

  • (A) normalization
  • (B) communication
  • (C) elimination
  • (D) all

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Q. the cost of the parallel algorithm is higher than the sequential run time by a factor of __

  • (A) 2020-03-02 00:00:00
  • (B) 2020-02-03 00:00:00
  • (C) 3*2
  • (D) 2/3+3/2

A

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Q. The load imbalance problem in Parallel Gaussian Elimination: can be alleviated by using a ____ mapping

  • (A) acyclic
  • (B) cyclic
  • (C) both
  • (D) none

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Q. A parallel algorithm is evaluated by its runtime in function of

  • (A) the input size,
  • (B) the number of processors,
  • (C) the communication parameters.
  • (D) all

A

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Q. For a problem consisting of W units of work, p__W processors can be used optimally.

  • (A) <=
  • (B) >=
  • (C) <
  • (D) >

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Q. C(W)__Θ(W) for optimality (necessary condition).

  • (A) >
  • (B) <
  • (C) <=
  • (D) equals

A

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Q. many interactions in oractical parallel programs occur in _____ pattern

  • (A) well defined
  • (B) zig-zac
  • (C) reverse
  • (D) straight

A

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Q. efficient implementation of basic communication operation can improve

  • (A) performance
  • (B) communication
  • (C) algorithm
  • (D) all

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