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

Perform the subtraction using 1's complement, Perform the subtraction using...

Perform the subtraction using 1's complement of 11001 - 10110 Ans. 11001 - 10110 = X - Y                            X = 11001 1's complement of Y = 01001

Can matchcode object contain ids with different update types, Can matchcode...

Can matchcode object contain Ids with different update types? Yes.

Pros and cons of assembly language, Pros and Cons of Assembly Language ...

Pros and Cons of Assembly Language The following are a number of advantages / disadvantages of employing assembly language: Assembly Language offers more control over ha

Functional units of a computer system, Functional units of a computer syste...

Functional units of a computer system: Digital computer systems consist of 3 distinct units. These units are as follows:  Central Processing unit Input unit and Output unit.

What are the advantages offered by data mining, What are the advantages off...

What are the advantages offered by data mining? Advantages offered through Data Mining are given below: a) Facilitates discovery of knowledge through massive, large data set

C programming, There is a pebble merchant. He sells the pebbles, that are u...

There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing that

Describe about physical systems, Q. Describe about Physical Systems? Ph...

Q. Describe about Physical Systems? Physical Systems are tangible entities which may be dynamic or static.   Computer Systems, Buildings,Vehicles etc. are illustrations of p

What is assembler, What is Assembler A macro-assembler or assembler nor...

What is Assembler A macro-assembler or assembler normally forms a part of operating system. That translates an assembly language program into machine language program.

Display frames (horizontal and vertical lines) in lists, How can you displa...

How can you display frames (horizontal and vertical lines) in lists? You can show tabular lists with horizontal and vertical lines (FRAMES) using the ULINE command and the syst

Address phase timing - computer architecture, Address phase timing: On...

Address phase timing: On the rising edge of clock 0, the initiator notes IRDY # and FRAME# both high, and GNT# low, so it drives the command, address and asserts FRAME# in tim

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