QUESTION 12 2 points Save Answer The central counter implementation of the barri

Question

QUESTION 12 2 points Save Answer The central counter implementation of the barrier routine has time complexity (where P is the number of processes): O B. O(logP) ° C. OPlogP) O D.O(P) QUESTION 13 2 points Save Answer Assume each process in a group of processes holds a row of the matrix in process rank order, i.e., row i of the matrix is held my process i. If we want to use a single MPI routine to transpose the matrix across the processes, i.e., elements on each row are distributed across the process with element i sent to process i, and after data exchange, each process holds one column of the matrix with column i resides on process i, which MPl routine is capable for doing this? A. MPI Alltoall B. MPI Scatter O C. MPI Gather O D. MPI Reduce QUESTION 14 2 points Save Answer Fill in the missing key word at the beginning of the following code segment such that n instances of the statements of the body can be executed simultaneously. (i = 0 i

Explanation / Answer

Question 12:

The counter implementation of barrier routine has the time complexity of O(P)

Since it is linear counter P is the number of Process

Question 13

MPI_Gather is used for transpose

Question 14:

for(i=0;i<n;i++)

is the used to run the statement simultaneously

Question 16:

Airflow across an airplane wing

Question 17:

Game of life is Cellular automata

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