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

Challenges in changing information technology, Q: Challenges and Prospects ...

Q: Challenges and Prospects in Changing Information Technology? There is no doubt that information technology has made significant progress during the past two decades. Modern

Static and dynamic hazard, what inputcombinations may those hazard take pla...

what inputcombinations may those hazard take place and how can they be eliminated? F1= AB'' + A''C + BC''D'' F2= AB + A''C''D + AB''D

Basic architecture of computer system, Q. Basic Architecture of computer sy...

Q. Basic Architecture of computer system? Replacing the ALU and CU (i.e., CPU) of Figure by a microprocessor, and storing instructions and data in the same memory, one arrives

What are types of firewalls, What are types of firewalls? There are con...

What are types of firewalls? There are conceptually two types of firewalls as: 1. Network Level 2. Application Level

Mapping, what is transform mapping and transaction mapping?

what is transform mapping and transaction mapping?

Explain extranet, Extranet : Extranet is Extension of an Intranet that ...

Extranet : Extranet is Extension of an Intranet that makes the latter accessible to outside companies or individuals with or without an intranet. It is also described as a coll

Explain flash devices, Explain Flash devices It is possible to read the...

Explain Flash devices It is possible to read the contents of a one cell, but it is only possible to write an whole block of cells Greater density which leads to superior cap

What do you mean by keyboard touch, Q. What do you mean by Keyboard Touch? ...

Q. What do you mean by Keyboard Touch? When employing a keyboard the most important factor is the feel of keyboard it implies that how typing feels on that specific keyboard.

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