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

What is meant by the guest function, When  transferring  one  functio...

When  transferring  one  function  to  another,  what  is  meant  by  the  guest  function? A pointer to a function can be passed to another function as an argument. This allows

Register data type as combinational element, Reg data type as Combinational...

Reg data type as Combinational element module reg_combo_example( a, b, y); input a, b; output y; reg y; wire a, b; always @ ( a or b) begin y = a & b; e

Computer assignment problem, contributes to violence in our society. Others...

contributes to violence in our society. Others point out that television contributes to the high level of obesity among children. Now, we may have to add financial problems to the

Recursive procedures are implemented, Recursive procedures are implemented ...

Recursive procedures are implemented by using Recursive procedures are executed by using stacks due to stacks are LIFO data structure and we require this feature to store retur

Write a bash shell script, Write a BASH/C shell script which takes name of ...

Write a BASH/C shell script which takes name of one or more files as a command line argument, and prints the following information for each file: owner, number of words in the file

Define a register, Define a register. Ans:  Register:   A register...

Define a register. Ans:  Register:   A register contain a group of flip-flops and gates which effect their transition. The flip flops hold the binary information and the g

#titlecompiler design.., c program for converting context free grammar to g...

c program for converting context free grammar to griebach normal form

Find the nyquist rate, Find the Nyquist rate for the following signals: (a)...

Find the Nyquist rate for the following signals: (a) x(t) = 5 sin 3000πt cos 4000πt (b) A binary channel with bit rate 36000 bps is available for PCM voice transmission. Fi

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