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

Name the various display devices, Name the various Display devices Diff...

Name the various Display devices Different types of display devices are discussed along with the principles on which these work. The main display devices used with CAD systems

Era of first generation computers, Q. Era of first generation computers? ...

Q. Era of first generation computers? The trends that were encountered at the time of the era of first generation computers were: Centralized control in a single CPU (al

Rdbms relational database system, RDBMS relational database system - Re...

RDBMS relational database system - Relational databases are composed of relations and managed through relational operations, and governed through data integrity constraints.

Neural network programming using matlab, I need the matlab basics for crea...

I need the matlab basics for creating and configuring a neural network with 2 hidden layers

What is internet address, Addresses are basically for virtually everything ...

Addresses are basically for virtually everything we do on Internet. The IP in TCP/IP is a mechanism for providing addresses for computers on Internet. Internet addresses have two f

Basic elements of assembly language, Basic elements of  Assembly language:...

Basic elements of  Assembly language: Any Assembly language which consists 3 types of instruction statements that are used to define the program operations: Data secti

Why are binary, Q. Why are binary, octal and hexadecimal used for computer ...

Q. Why are binary, octal and hexadecimal used for computer applications? Q. Perform the following: (189.3) 10 = (?) 2

Explain pipelining, Define pipelining Pipelining is an efficient way of...

Define pipelining Pipelining is an efficient way of organizing concurrent activity in a computer system. The processor implements the program by fetching and implementing instr

What is the need of interrupt controller, What is the need of interrupt con...

What is the need of interrupt controller?  The interrupt controller is employed to expand the interrupt inputs. It can handle the interrupt requests from several devices and pe

What is persistence, What is Persistence When you make an object, it e...

What is Persistence When you make an object, it exists for so long as you need it, but under no circumstances object exist when program terminates. While this makes sense at s

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