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

How many tables can an append structure be assigned, To how many tables can...

To how many tables can an append structure be assigned. One table can be assigned to append structure.

Illustration what is the cause of brownian motion, Q. Illustration what is ...

Q. Illustration what is the cause of Brownian motion? Answer:- Molecules in a gas move freely, randomly, constantly in all directions and at high speeds. They are capable

Existential introduction, Existential Introduction: Now if we have any...

Existential Introduction: Now if we have any sentence as, A, and variable, v, that does not occur in A, so then for any ground term, g, such occurs in A, than we can turn A in

Face recognition using java, how we get a perfect tutorial for face recogn...

how we get a perfect tutorial for face recognition using java

Find farthest distance from exchange where subscriber locate, An exchange u...

An exchange uses a -40 V battery to drive subscriber lines. A resistance of 250 ohms is placed in series with the battery to protect it from short circuits. The subscribers are req

Largest and the second largest number, The largest and the second largest n...

The largest and the second largest number from a set of n distinct numbers can be found in    O (n)

Which work process triggers database changes, Which work process triggers d...

Which work process triggers database changes? Update work process

Design a flash project, The only way to respond effectively to a design pro...

The only way to respond effectively to a design project is to first understand the topic well yourself. To do this you need to research the topic and ask yourself a series of quest

What do you mean by processor arrangements, Q. What do you mean by Processo...

Q. What do you mean by Processor Arrangements? It is a very common event in data parallel programming to combine many processors to execute specific tasks. To achieve this obje

Adbms, what are the different way of executing pipelines

what are the different way of executing pipelines

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