Explain loop level of parallel processing, Computer Engineering

Assignment Help:

Loop Level

At this stage, following loop iterations are candidates for parallel execution. Though, data dependencies among subsequent iterations can restrict parallel execution of instructions at loop level. There is vast scope for parallel execution at loop level. 

Illustration: In the subsequent loop in C language,

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

                        A (i) = B (i) + C (i)

Each of the instruction A (i) =B (i) + C (i) may be implemented by different processing elements provided there are at least n processing elements. Though, the instructions in the loop

 

                        For (J=0; J<= n; J++)

                        A (J) = A (J-1) + B (J)  

Cannot be executed parallely as A (J) is data dependent on A (J-1).  It implies that before using the loop level parallelism the data dependencies should be checked.

 


Related Discussions:- Explain loop level of parallel processing

Introduction to the operating system, Q. Introduction to the Operating Syst...

Q. Introduction to the Operating System? An Operating system is software that creates a relation between the User, Hardware and Software. It is an interface between the all.

Explain automated and manual systems, Q. Explain Automated and Manual syste...

Q. Explain Automated and Manual systems? Automated and Manual systems: The system that doesn't need human intervention is known as'Automated system'. In this system whole proce

Unification - artificial intelligence, Unification - Artificial intelligenc...

Unification - Artificial intelligence: We have said that the laws of inference for propositional logic detailed in the previous lecture can also be used in first-order logic.

How does the race condition occur, It happens when two or more processes ar...

It happens when two or more processes are reading or writing some joint data and the final result depends on who runs exactly when.

Analysis of website, In this part you are required to review and critique a...

In this part you are required to review and critique a website of a café or a restaurant of your choice. Your report should be a minimum 500 words with a maximum of 1000 words. You

Computer graphics, what is boundary filling explain with example

what is boundary filling explain with example

Calculate width and height of the grid, Given a cell, we must determine its...

Given a cell, we must determine its neighbouring cells i.e. those with which it shares a wall. The cells with an x are the neighbours of the cell c. Write the function getneighbour

Which scheduler select process from secondary storage device, Which schedu...

Which scheduler selects processes from secondary storage device? Ans. Medium term scheduler selects processes from secondary storage device.

Physical characteristics and access mode of disk drive, Q. Physical charact...

Q. Physical characteristics and access mode of disk drive? Access Time: Access time is time needed between requests made for a read or write operation until the time data are

Create simple algebraic expression from k-map, Q. Create simple algebraic e...

Q. Create simple algebraic expression from K-Map? Now create simple algebraic expression from K-Map. These expressions are created by employing adjacency if we have 2 adjacent

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd