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

C PROGAMM, CODING FOR...WHAT IS THE PROBABILITY THAT A CARD DRAWN FROM A PA...

CODING FOR...WHAT IS THE PROBABILITY THAT A CARD DRAWN FROM A PACK OF 52 CARDS WILL BE A DIAMOND OR A KING .

Fully parallel associative processor (fpap), Fully Parallel Associative Pro...

Fully Parallel Associative Processor (FPAP):  This processor accepts the bit parallel memory organisation. FPAP has two type of this associative processor named as: Word Org

Microcomputer applications, Mr. Franco Forest owns a small lawn care busine...

Mr. Franco Forest owns a small lawn care business with three employees. He owns the lawn mowers, rakes, and weed whackers that are housed in a storage area at the back of his home.

Affective functioning - integrated test result, Mr. X's MMPI suggests that ...

Mr. X's MMPI suggests that he either suppresses anger and hostility or has a naturally low level of anger and hostility (O-H=58, ANG=36, TPA=41, AGGR=36). His responses on the PAS

What is verification method, The verification method states how Robot compa...

The verification method states how Robot compares the baseline data captured while recording with the data captured during playback.

Define master construct in fortan, Q. Define Master Construct in FORTAN? ...

Q. Define Master Construct in FORTAN? The master directive has following general form:  #pragma omp master structured_block  It causes master thread to execute structu

Drawback of the system using disk caching, Q. Drawback of the system using ...

Q. Drawback of the system using disk caching? The main drawback of the system using disk caching is risking loss of updated information in event of machine failures like loss o

What is slack, What is slack? 'Slack' is the amount of time you have wh...

What is slack? 'Slack' is the amount of time you have which is measured through while an event ‘really happens' and while it ‘should happen’. The term ‘really happens' can a

Important part of process - canonical genetic algorithm, Important part of ...

Important part of Process - canonical genetic algorithm: In such a scenario evolution or random mutations are often highly deleterious or can say harmful to the organism it me

What is a PCI bus and discuss its aspects and usage, What is a PCI bus? Dis...

What is a PCI bus? Discuss its aspects and usage. Peripheral Component Interconnect (PCI): This bus was developed by Intel and introduced in 1993. It is geared specifically to

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