a) A designer is making a decision about structuring some code. He cannot decide whether to create two processes and communicate between them using shared memory or to create a multithreaded application. What are the main considerations that need to be taken into account when deciding between a multithreaded architecture and a multiprocess architecture?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
Section: Chapter Questions
Problem 33VE
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Question 3
a) A designer is making a decision about structuring some code. He cannot decide
whether to create two processes and communicate between them using shared
memory or to create a multithreaded application. What are the main considerations
that need to be taken into account when deciding between a multithreaded
architecture and a multiprocess architecture?
b) An image is made up of a 2d array of pixel values in the range 0-255. Write some
pseudocode for a threaded application that will access each of the pixels in the
image and replace the pixel value with 0 if the original pixel value was less than 128,
otherwise replace the pixel value with 255. The program should be able to run with
different numbers of threads as determined by the user.
Transcribed Image Text:Question 3 a) A designer is making a decision about structuring some code. He cannot decide whether to create two processes and communicate between them using shared memory or to create a multithreaded application. What are the main considerations that need to be taken into account when deciding between a multithreaded architecture and a multiprocess architecture? b) An image is made up of a 2d array of pixel values in the range 0-255. Write some pseudocode for a threaded application that will access each of the pixels in the image and replace the pixel value with 0 if the original pixel value was less than 128, otherwise replace the pixel value with 255. The program should be able to run with different numbers of threads as determined by the user.
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