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

What is an orthogonal base class in c++, If two base classes have no overla...

If two base classes have no overlapping methods or data they are said to be independent of, or orthogonal to each other. Orthogonal in the sense means that two classes function in

Draw a schematic for managing dynamic storage allocation, Draw a simple sch...

Draw a simple schematic for managing dynamic storage allocation. A simple schematic for managing dynamic storage allocation is as follows: Block size pointe

What is application software, What is application software? Give example. ...

What is application software? Give example. Application programs are usually written in a high level programming language, in which the programmer states mathematical or text p

For what CIDR stands, CIDR stands for? CIDR stands here for Classless I...

CIDR stands for? CIDR stands here for Classless Inter Domain Routing.

The files in tif format, Image Capturing Download the following grey lev...

Image Capturing Download the following grey level 512x512 standard images in TIF format: a-Lena       b-Baboon     c-Bridge       d-Airfield Use Matlab to decrease the siz

Access to external identifiers, Access to External Identifiers: An external...

Access to External Identifiers: An external identifier is one which is referred in one module though defined in another. You can declare an identifier to be external by including i

Appropriate problems for ann learning, Appropriate Problems for ANN learnin...

Appropriate Problems for ANN learning: Conversely as we did for decision trees there it's important to know where ANNs are the right representation scheme for such job. Howeve

Detemine the major building blocks of uml, Detemine the major building bloc...

Detemine the major building blocks of UML UML could be used in visualizing, specifying, constructing and documenting object oriented systems. The major building blocks of UML a

Various ways of floating point representation in memory, Describe the vario...

Describe the various ways of floating point representation in memory. What is the importance of normalizing the mantissa in this representation? Explain it by example(s)?

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