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

Operations from events, Operations from events During analysis, events...

Operations from events During analysis, events which are sent to target objects. An operation on these object are presented as labels on transitions and should not be explicit

With what symbolic names can be associated, Symbolic names can be associate...

Symbolic names can be associated with? Ans. With data or instruction symbolic names associated.

Performance of a parallel algorithm - number of processors, Factor which he...

Factor which helps in analysis of parallel algorithms is the total number of processors needed to deliver a solution to a provided problem. So for a given input of size let's say n

What is a thread, What is a thread? A thread otherwise called a lightwe...

What is a thread? A thread otherwise called a lightweight process (LWP) is a basic unit of CPU utilization, it comprises of a thread id, a program counter, a register set and a

Mating - canonical genetic algorithm, Mating: Therefore once our GA ag...

Mating: Therefore once our GA agent has chosen the individuals lucky sufficient as actually there  fit enough to produce offspring then we next determine how they are going to

Define decision support system, Q. Define Decision Support System? An...

Q. Define Decision Support System? Ans. The decision support system is an information system application which help decision making. DSS tends to be used in planning or analy

Usability test of website, For this part of your assessment you are require...

For this part of your assessment you are required to prepare and conduct a usability test of the website that you have chosen to review from Part A . You must design the script,c

Minimum total number of shelv, Write a program that finds the minimum total...

Write a program that finds the minimum total number of shelv, C/C++ Programming

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