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 traffic engineering, What is Traffic Engineering? Traffic engi...

What is Traffic Engineering? Traffic engineering gives the basis for analysis and design of telecommunication network to carry a specified traffic at an exact loss probability

naming convention in local scope variables, Description Variables show ...

Description Variables show values that can be changed within a procedure or function. Local scope variables are placeholders that reside within a function- or a script-body.

What are the phases of video production, Question 1: a) What are the p...

Question 1: a) What are the phases of video production? b) What do you mean by storyboards? c) What are the differences between Point and Area (or Paragraph) Text?

What is microfilm, What is microfilm? This is a photographic reproducti...

What is microfilm? This is a photographic reproduction of a document greatly decreased in size from the original on fine grain, high resolution film. Microfilm needs a reader f

Communication of request/response - procedural interaction, Explain the Com...

Explain the Communications of Request/Response Communications requirements for message or procedural- based interaction are very similar. Application interaction (client-server

Explain memory write operation, Q. Explain Memory Write operation? Memo...

Q. Explain Memory Write operation? Memory write operation transfers content of a data register to a memory word M selected by the address. Presume that data of register R1 is t

Congestion in network layer, explain different types of congestion in netwo...

explain different types of congestion in network layer?

Which one state is not a fundamental process state, Which one state is not ...

Which one state is not a fundamental process state? Ans. Blocked state is not a fundamental process state.

What is e-cash, E-Cash:  E-cash is cash shown by two models. One is the...

E-Cash:  E-cash is cash shown by two models. One is the on-line form of e-cash (introduced by DigiCash) which permits for the completion of all types of internet transactions.

Explain the accuracy of an ADC, Explain the Accuracy o f an ADC. Ans...

Explain the Accuracy o f an ADC. Ans Accuracy- The accuracy of D to A converter is the difference among actual output voltage and the expected output voltage in D to A c

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