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

Explain program interpretation process, Explain program interpretation pr...

Explain program interpretation process. In a program interpretation process , the interpreter reads the source program and stores this in its memory. This bridges an executi

De morgans laws, De Morgan's Laws : With continuing the relationship b...

De Morgan's Laws : With continuing the relationship between ^ and ? , we can also needs De Morgan's Law to rearrange sentences involving negation in conjunction with these con

In order to concatenate strings only for output purposes, In order to conca...

In order to concatenate strings only for output purposes which command can be used in conjunction with the 'Write' statement. NO-GAP command.

Illustrate processor arrangements, Q. Illustrate processor arrangements? ...

Q. Illustrate processor arrangements? HPF$ PROCESSORS P2 (4, 3) !HPF$ TEMPLATE T2 (17, 20) !HPF$ DISTRIBUTE T2 (BLOCK, *) ONTO P1 Means that first dimension of T2 woul

Slot machine, A special Slot Machine is introduced in a new casino; this ma...

A special Slot Machine is introduced in a new casino; this machine has a digital interface of a 3X3 grid. An interface button named as SPIN for making the machine spin. There are f

Find out the decimal equivalent of binary number, The decimal equivalent of...

The decimal equivalent of Binary number 10101 is ? Ans. 1x2 4 + 0x2 3 +1x2 2 +0x2 1 + 1x2 0 = 16 + 0 + 4 + 0 + 1 = 21.

Design a 4 to 1 multiplexer, Design a 4 to 1 Multiplexer by using the three...

Design a 4 to 1 Multiplexer by using the three variable function given by F(A, B, C) = ∑ m(1,3,5,6) Ans. The given function F(A,B,C) = ∑ m(1,3,5,6) can be implemented along wit

Rhythm, Rhythm Rhythm in art refers to the way that your eye moves thr...

Rhythm Rhythm in art refers to the way that your eye moves through a picture and can be thought of in a similar way to rhythm in music. Your eye will move through some picture

Length property of array , DEscribe a console application to show all the a...

DEscribe a console application to show all the arguments passed tocommand line whereas running the application. The user can pass anynumber of arguments that should be shown. Use l

Show the hypothetical instruction format of 32 bits, Q. Show the Hypothetic...

Q. Show the Hypothetical Instruction Format of 32 bits? A sample instruction format is shown in figure below. Figure: A Hypothetical Instruction Format of 32 bits

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