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aleksandr82 [10.1K]
3 years ago
10

A software company used to run an algorithm sequentially on one server. As more users start using their app, the company decided

to rewrite the program to be parallel. It is now run on four separate servers instead of one Thanks to the use of a parallel algorithm, the same process that used to take 40 minutes to run now only requires 20 minutes. The company is considering purchasing additional computers to decrease the time the program runs even further. Which of the following best describes the impacts of running the parallel algorithm on an even larger number of computers.
a. The algorithm will likely require more time since it is now being run sequentially on more computers.
b. The algorithm will likely require the same amount of time to run because it is processing the same amount of data.
c. The algorithm will likely require less time to run though the improvements in efficiency will not be as significant as before.
d. The algorithm is unlikely to still run since parallel algorithms are not designed to scale to additional computers
Computers and Technology
1 answer:
Liula [17]3 years ago
4 0

Answer:

a. The algorithm will likely require more time since it is now being run sequentially on more computers.

Explanation:

Algorithm is a software which enables the users to solve complex problems with input of commands. The software runs the command inserted and then output is generate. The algorithms can be run parallel and sequentially on more computers.

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Answer:

The solution code is written in Python 3:

  1. def modifyList(listNumber):
  2.    posCount = 0
  3.    negCount = 0
  4.    for x in listNumber:
  5.        if x > 0:
  6.            posCount += 1
  7.        else:
  8.            negCount += 1
  9.    
  10.    if(posCount == len(listNumber)):
  11.        listNumber.append(max(listNumber))
  12.    
  13.    if(negCount == len(listNumber)):
  14.        listNumber.append(min(listNumber))
  15.    
  16.    print(listNumber)
  17. modifyList([-1,-99,-81])
  18. modifyList([1,99,8])
  19. modifyList([-1,99,-81])

Explanation:

The key step to solve this problem is to define two variables, posCount and negCount, to track the number of positive value and negative value from the input list (Line 2 - 3).

To track the posCount and negCount, we can traverse through the for-loop and create if else statement to check if the current number x is bigger than 0 then increment posCount by 1 otherwise increment negCount (Line 5- 9).

If all number in the list are positive, the posCount should be equal to the length of the input list and the same rule is applied to negCount. If one of them happens, the listNumber will append either the maximum number (Line 11 -12) or append the minimum number (Line 14-15).

If both posCount and negCount are not equal to the list length, the block of code Line 11 -15 will be skipped.

At last we can print the listNumber (Line 17).

If we test our function using the three sets of input list, we shall get the following results:

[-1, -99, -81, -99]

[1, 99, 8, 99]

[-1, 99, -81]

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