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

Embedded systems and the system in which rtos is running, Explain What is t...

Explain What is the difference among embedded systems and the system in which RTOS is running? Ans) Embedded system can have RTOS and cannot have also. It depends on the requi

Techno hype - obstacle to information system, Techno hype - Obstacle to Inf...

Techno hype - Obstacle to Information System New technology has always been accompanied by a certain amount of euphoria that inevitably leads to unrealistic expectations place

Operating sustem, describe the action by thread library to context switch ...

describe the action by thread library to context switch between user level threads

different versions of microsoft access to open the database, What format s...

What format should my database be saved in to allow different versions of Microsoft Access to open the database? Ans) MS Access is not backwards compatible. To share tables amon

QUELING SYSTEM, Q.SHOW THAT AVERAGE NUMBER OF UNIT IN A (M/M/1) QUELING SYT...

Q.SHOW THAT AVERAGE NUMBER OF UNIT IN A (M/M/1) QUELING SYTEM IS EQUAL TO P/(1-p). NOTE:P=ROW

Kirchoff''s laws, i want to make an assignment about kirchoff''s law

i want to make an assignment about kirchoff''s law

Convert hexadecimal bch to decimal number, Convert hexadecimal BCH to decim...

Convert hexadecimal BCH to decimal of form 0100 1000. Converting the hexadecimal BCH to decimal number firstly convert given number into two's compliment that is: 0100100

What is functions of input - output interface, Q. What is Functions of Inpu...

Q. What is Functions of Input - Output Interface? An I/O interface is bridge between processor and I/O devices. It controls data exchange between external devices and main mem

What are various ids associated with a process, What are various IDs associ...

What are various IDs associated with a process? Unix identifies each process with a unique integer known as ProcessID. The process that implements the request for creation of a

Reference table and a reference field, A field containing currency amounts ...

A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain. As a reference table, a system having all the valid

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