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

Explain crossbar exchange with all call processing steps, Explain crossbar ...

Explain crossbar exchange, with all call processing steps and diagrams. The fundamental idea of crossbar switching is to give a matrix of n x m sets of contacts with only n + m

Application of connect-4 game, The game Connect-4 is played on a board that...

The game Connect-4 is played on a board that has seven columns. There are six spaces on each column. The board is initially empty. Two players take turns dropping one piece (black

Why do you create parameters, Parameters are like script variables. They ar...

Parameters are like script variables. They are used to vary input to the server and to imitate real users. Dissimilar sets of data are sent to the server every time the script is r

Design requirements of sequential circuit, What are the Requirements to des...

What are the Requirements to design Sequential circuit Ans . Design Requirements of Sequential circuit: (i) The circuit specifications translated into a state diagram

Explain the working of a three bit binary ripple counter, With the help of ...

With the help of clocked JK flip flops and waveforms, explain the working of a three bit binary ripple counter. Write truth table for clock transitions. Ans. Three-Bit Binary Rip

How linq is beneficial than stored procedures, There are couple of benefit ...

There are couple of benefit of LINQ over stored procedures.   1. Debugging - It is really very difficult to debug the Stored procedure but as LINQ is part of .NET, you can us

How testmanager manage test logs, When a robot scripts runs the output make...

When a robot scripts runs the output makes a test log. Test logs are managed now is the TestManager application. Rational now permits you to classify your logs into any type of for

Define the time required by sector to reach below read/write, is the time r...

is the time required by a sector to reach below read/write head. Latency Time is the time needed by a sector to reach below read/write head.

Operator, write algorithm and draw flowchart for exchange the values of two...

write algorithm and draw flowchart for exchange the values of two variables.

Logical functions, Logical functions   We have discussed the If, 'While...

Logical functions   We have discussed the If, 'While and For' Statements, and have used expressions within our syntax i.e.           If ( expression)           Statement 1;

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