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

State the optimal route of node, State the optimal route of node Consid...

State the optimal route of node Consider the node i which has path length K+1, with the directly preceding node on the path being j. The distance to node i is w(j, i) plus the

Caption to commission rate, Get a listing of the name, commission rate, and...

Get a listing of the name, commission rate, and hire date of all salesmembers who sell to commercial customers. Sort the result in order from the 1st hired to the most recently hir

Explain the pdca cycle, Explain the PDCA cycle. PDCA is a four step pro...

Explain the PDCA cycle. PDCA is a four step problem solving method. The following are the description of each step: 1. P - Plan (Devise your Plan). Identify an opportunity a

Determine the output of an even parity generator, When the set of input dat...

When the set of input data to an even parity generator is 0111, the output will be ? Ans. Into even parity generator if number of one is odd then output will be 0.

The height of the left sub tree and height of the right tree, The differenc...

The difference among the height of the left sub tree and height of the right tree, for each node, is almost one.  AVL - tree

What are the advantages of electronic payment system, What are the advantag...

What are the advantages of electronic payment system? Advantages of the electronic payment system are illustrated below: This gives good security schemes. Four important sec

Benefits of expert system to the user, a. It improves quality by providing ...

a. It improves quality by providing consistent advice and by making reduction in the error rate. b. Expert systems are reliable and they do not overlook relevant info

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