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

Explain the system design of object oriented modelling, Explain the System ...

Explain the System Design of Object oriented modelling System Design : At this stage, the whole system model is designed. This is the phase where the complete system is divi

Features of an expert system, The heart of an experts systems is the ...

The heart of an experts systems is the powerful corups of knowledge that accumulates during system building. The knowledge is explicit and organized to simplify decisio

What is the difference between swapping and paging, What is the difference ...

What is the difference between Swapping and Paging? Swapping: Entire process is moved from the swap device to the major memory for implementation. Process size must be less t

Explain error detection and correction codes, Q. Explain Error Detection an...

Q. Explain Error Detection and Correction Codes? Before we wind up data representation in reference of today's computers one should determine about code that helps in correctio

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

The advantages of specifying parameters during instantiation, The advantage...

The advantages of specifying parameters during instantiation method are: -  All values to all the parameters do not need to be specified. Only those parameters that are assigne

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

Data bus is bidirectional, Why address bus is unidirectional and data bus i...

Why address bus is unidirectional and data bus is bidirectional? Ans) Because there is no require address transaction among processor and peripheral device but data bus is req

What is asynchronous dram, What is asynchronous DRAM? In asynchronous D...

What is asynchronous DRAM? In asynchronous DRAM, the timing of the memory device is controlled asynchronously. A specialized memory controller circuit gives the essential contr

Important points of simulations, Important points of simulations In thi...

Important points of simulations In this simulation it is essential to consider: (1)  What and how data is gathered (2)  How simulation is done (3)  How system would wo

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