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

What is functions indention, Use tabs to bring some structure into your fun...

Use tabs to bring some structure into your function body if(nPos > 1) then nRetrun = True else nRetrun = False end if

Program, Write a program to find the area under the curve y = f(x) between ...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Design the communication protocol, Design, write, and implement distributed...

Design, write, and implement distributed networked application using Java Design the communication protocol (message format and exchange procedure) that your application will re

Purpose of storage - computer architecture, Purpose of storage: Several...

Purpose of storage: Several different forms of storage, based on different natural phenomena, have been invented.  So far, no practical universal storage medium persists, and a

What is ai backgammon, This part looks at Berliner's program, two backprop ...

This part looks at Berliner's program, two backprop versions by Tesauro and a temporal difference process by Tesauro. This latter program is VERY good quality and has found strateg

Define refresh circuits, Define Refresh Circuits? It is a circuit which...

Define Refresh Circuits? It is a circuit which make sure that the contents of a DRAM are maintained when every row of cells are accessed periodically.

Customer service and support in post purchase interaction, Describe the cus...

Describe the customer service and support in post purchase Interaction. Post purchase Interaction: The considerations at this step can be explained by the given example:

Explain mutual-exclusion implementation with semaphores, Disadvantage and...

Disadvantage and Advantage of mutual-exclusion implementation with semaphores. Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting. Tha

Explain passing parameters in general memory, Q. Explain Passing Parameters...

Q. Explain Passing Parameters in General Memory? The parameters can be passed in the memory too. In such a technique name of the memory location is used as a parameter. The res

Determine the importance of computer hardware, Determine the importance of ...

Determine the importance of computer Hardware Hardware forms the greatest asset of the company, but it reaches obsolescence very quickly. Normally, it is said that every six mo

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