Loop level-levels of parallel processing, Computer Engineering

Assignment Help:

Loop Level

At this level, repeated loop iterations are the applicants for parallel execution. However, data dependencies among subsequent iterations may limit parallel execution of instructions at loop level. There is a lot of scale for parallel execution at loop level.

Ex: In the following 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) can be implemented by different processing elements supplied  there are at least n processing elements. But, the instructions in the loop:

for ( J=0, J<= n, J++) A(J) = A(J-1) + B(J)

Cannot be implemented parallel as A(J) is data dependent on A(J-1).  This means that previous to exploiting the loop level parallelism the data dependencies have to be checked:

 


Related Discussions:- Loop level-levels of parallel processing

Illustrate the categories of micro computers, Illustrate the categories of ...

Illustrate the categories of micro computers Micro computers are usually categorized into desktop models and laptop models.  They are awfully limited in what they can do when c

What is an on"*-input filed" statement, What is an on"*-input filed" statem...

What is an on"*-input filed" statement? ON *-INPUT The ABAP/4 module is known as if the user has entered the "*" in the first character of the field, and the field has th

What is presentation layer, Q. What is Presentation layer? Presentatio...

Q. What is Presentation layer? Presentation layer: When two hosts are communicating with each other they might use different coding standards and character sets for represent

Dbms., what is cascade rollback

what is cascade rollback

Flow-between matrix layout problem, Solve the problem in page 346 of the pa...

Solve the problem in page 346 of the paper on cell formation by Boctor using the MIP method.  Use 4 cells and no more than 3 machines per cell. Solve the problem using the MIP m

Differentiate between hardware and software, Differentiate between Hardware...

Differentiate between Hardware and Software Another classification is software vs. hardware. Hardware is the collection of physical components, like chips, wires, PCBs, connect

What is orientation- object-oriented technology, What is Orientation-  obj...

What is Orientation-  object-oriented technology There are many characteristics of object-oriented technology. A few of these characteristics have been discussed in cour

Display the map centered on the users location, Question: a) The follo...

Question: a) The following is a description of the navigation options in a mobile web site which provides public bus time slots for a city. It is an interesting service for m

Design of structure chart, Design of structure chart - Standard qualit...

Design of structure chart - Standard quality structure charts result in programs that are modular, reusable and simple to execute. - Measures include: Cohesion

Define processor clock, Define processor clock. Processor clock is expl...

Define processor clock. Processor clock is explained as the time periods in which all operations and data transfer within the processor take place.

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