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

Dram, DRAM consists of MOSFET's but the technique is to use the drain sourc...

DRAM consists of MOSFET's but the technique is to use the drain source capacitance to hold charge. If charge is present logic '1' is held, no charge logic '0'. As you know capacito

What is processor time of a program, What is processor time of a program? ...

What is processor time of a program? The periods during which the processor is active is known as processor time of a program it depends on the hardware included in the executi

Determine the decimal equivalent of binary number, The decimal equivalent o...

The decimal equivalent of Binary number 11010 is ? Ans. 11010 = 1 X 2 4 + 1 X 2 3 + 0 X 2 2 + 1 X 2 1 = 26.

What are the issues of software development, What are the issues of softwar...

What are the issues of software development One of main issues in software development today is quality. Software must be properly documented and implemented. The notion of sof

Define arithmetic pipelines, Arithmetic Pipelines The technique of pipe...

Arithmetic Pipelines The technique of pipelining can be applied to various complex and low arithmetic operations to speed up processing time. Pipelines used for arithmetic calc

What is connection, An established communication session among a server and...

An established communication session among a server and a workstation.

Explain classification based on grain size, Explain Classification Based On...

Explain Classification Based On Grain Size This categorization is based on distinguishing the parallelism in a program to be executed on a multiprocessor system. The concept is

Dna sequences, The dataset provided in this assignment contains a collectio...

The dataset provided in this assignment contains a collection of real DNA sequences. The number of true binding sites is quite limited and that makes the problem challenging. In ma

Computer systems principles, Your program should print the inverted map to ...

Your program should print the inverted map to the screen (using a format similar to the inverter project, but you will print out the url values instead of document IDs). You can pr

Example of variables and quantifiers - first-order logic, Example of Variab...

Example of Variables and quantifiers: We should have started with something such which reflects the fact that we're really talking for some meal at the Red Lion, neverthe

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