Explain loop level of parallel processing, Computer Engineering

Assignment Help:

Loop Level

At this stage, following loop iterations are candidates for parallel execution. Though, data dependencies among subsequent iterations can restrict parallel execution of instructions at loop level. There is vast scope for parallel execution at loop level. 

Illustration: In the subsequent 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) may be implemented by different processing elements provided there are at least n processing elements. Though, the instructions in the loop

 

                        For (J=0; J<= n; J++)

                        A (J) = A (J-1) + B (J)  

Cannot be executed parallely as A (J) is data dependent on A (J-1).  It implies that before using the loop level parallelism the data dependencies should be checked.

 


Related Discussions:- Explain loop level of parallel processing

What is the use of hypertext links in internet access, What is the use of h...

What is the use of hypertext links in Internet access? Use of Hypertext links in Internet access: From the user’s view point, the Web comprised a vast, worldwide collecti

What is read only memory (rom) and define the use of it?, What is Read only...

What is Read only memory (ROM) and Define the Use of it? A simple kind of ROM can be constructed from a decoder, Or gates, and a number of wires. Input

Illustrate the encryption and decryption methods, Illustrate the Encryption...

Illustrate the Encryption and Decryption methods One of the best method of ensuring security is to change the form of communication. Let the messages be encoded in such a patte

What is the main use of structures, What is The main use of structures ...

What is The main use of structures The main use of structures is to lump together collections of disparate variable types, so they can conveniently be treated as a unit. For ex

What is delegation, What is delegation? Delegation gives a proper mecha...

What is delegation? Delegation gives a proper mechanism to achieve the desired code reuse. The method is caught in the desired class and forwarded to another class for actual i

Assembler directives, What are assembler directives? Ans: These are th...

What are assembler directives? Ans: These are the instructions that direct the program to be executed. They have no binary corresponding so they are called pseudo-opcodes. The

What is keyboard layout, Q. What is Keyboard Layout? A keyboard layout ...

Q. What is Keyboard Layout? A keyboard layout is arrangement of keys across the keyboard. There is one keyboard layout which anybody who has worked on a standard keyboard or ty

Analysis of merge sort, i) The width of the sorting + merging circuit is eq...

i) The width of the sorting + merging circuit is equivalent to maximum number of devices needed in a phase is O(n/2). As in the above diagram maximum number of devices for a given

Explain about cseg segment, CSEG SEGMENT  ASSUME CS:CSEG, DS:CSEG, SS:CS...

CSEG SEGMENT  ASSUME CS:CSEG, DS:CSEG, SS:CSEG  ORG 100h START:MOV AX, CSEG; Initialise data segment  MOV DS, AX; register using AX  MOV AL, NUM1; Take the first num

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