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

Why select clause comes after from clause in linq, The reason is, LINQ is u...

The reason is, LINQ is used with C# or other programming languages, which needs all the variables to be declared first. From clause of LINQ query just describes the range or condit

Illustrate when are intermolecular forces the strongest, Q. Illustrate when...

Q. Illustrate when are intermolecular forces the strongest? Answer:- Intermolecular forces dispersion and dipole-dipole and hydrogen bonds. These forces are feeble than ch

Architecture of artificial neural networks, Architecture of Artificial neur...

Architecture of Artificial neural networks: Presumably "Artificial Neural Networks" consist of a number of units that are mini calculation devices. But they take in real-value

What do you mean by first fit, What do you mean by first fit? First fi...

What do you mean by first fit? First fit allocates the first hole that is big enough. Searching can either begin at the beginning of the set of holes or where the last first-f

What is meant by bitwise operations, What is meant by bitwise operations? ...

What is meant by bitwise operations? C has distinction of supporting special operators known as bit wise operators for manipulation of data at bit level. These operators are us

Explain abstract class, What is an interface and what is an abstract class?...

What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why?   Abstract classes are closely related to interfaces. They are classe

Predicates - first-order logic, Predicates - first-order logic: First ...

Predicates - first-order logic: First and foremost in first-order logic sentences, because predicates. Hence the indications of that some things are related in some way. So af

Determine the nand gate, If  the input to T-flipflop is 100 Hz signal, the ...

If  the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is ? Ans. The  final  output  of  the  three  T-flip-flops in cascade is 12

Simulated annealing - artificial intelligence, Simulated Annealing: On...

Simulated Annealing: One way to get around the problem of local maxima, and related problems like ridges and plateaux in hill climbing is to allow the agent to go downhill to

Minimum degree of t=1 for a b-tree, Why don't we permit a minimum degree of...

Why don't we permit a minimum degree of t=1 for a B-tree? According to the definition of B-Tree, a B-Tree of order n means that every node in the tree has a maximum of n-1 keys

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