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 a java program compiles, How a Java program compiles? First sou...

How a Java program compiles? First source file name should be extended with .java extension. For example Myprog.java Execute javac compiler. javac compiler creates

Compare hypertext versus hypermedia, Compare hypertext versus hypermedia.  ...

Compare hypertext versus hypermedia.  Hypertext is basically similar as regular text - it can be stored, read, searched, or edited - with a significant except ion: hyper text h

What is the session, What is the session.  Session is a collection of v...

What is the session.  Session is a collection of various groups of method. Every session is assigned to a single control terminal. This terminal is either a pseudo-device. or a

Procedure which divides a 32-bit number by a 16-bit number, Write a procedu...

Write a procedure which divides a 32-bit number by a 16-bit number. The procedure must be general which is it's defined in one module and can be called from another assembly module

Why cmos circuits are extensively used for On-chip computers, CMOS circuits...

CMOS circuits are extensively used for ON-chip computers mainly because of their extremely ? Ans. Since CMOS circuits have large packing density, so these are extensively use

What are the different sections of a report, What are the different section...

What are the different sections of a report? A report is categorized into many sections: The Report header: In this you place a control which must appear only at the startin

Evaluation functions for cutoff search , Evaluation Functions for Cutoff Se...

Evaluation Functions for Cutoff Search - artificial intelligent Evaluation functions guess the score that may be guaranteed if a specific world state is reached. In chess, such

C program, program for finding the area under the curve   #includ...

program for finding the area under the curve   #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int

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

Harvard mark-I and the bug, The next important effort in the direction of d...

The next important effort in the direction of devising an electromechanical computer was made at Harvard University mutually sponsored by IBM and Department of UN Navy, Howard Aike

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