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

State in brief about the pseudo instruction, State in brief about the pseud...

State in brief about the pseudo instruction A pseudo instruction isn't a real instruction. CPU can't execute it. It often requires a complex architectural operation and if it w

Explain organisations use in electronic data interchange, Explain about the...

Explain about the organisations use in EDI. Organisations, which are use Electronic Data Interchange. Extensive users of Electronic Data Interchange (EDI) include: BHS:

Why is cloud computing important, Why is Cloud Computing important? The...

Why is Cloud Computing important? There are many implication of cloud technology, for both developers and end users. For developers, cloud computing gives increased amounts of

Sort Wars, If quicksort is so quick, why bother with anything else? If bubb...

If quicksort is so quick, why bother with anything else? If bubble sort is so bad, why even mention it? For that matter, why are there so many sorting algorithms?

Define process control block, Define Process Control Block (PCB). Pr...

Define Process Control Block (PCB). Process Control Block (PCB): Information related with each process is stored into Process control Block. a)      Process state b)

Digital Design, Design a serial 2’s complementer with a shift register and ...

Design a serial 2’s complementer with a shift register and a flip-flop

Volatility of memory - computer architecture, Volatility of memory: ...

Volatility of memory: Non-volatile memory will received the stored information even if it is not continually supplied with electric power. It is appropriate for long-term

Projects on cluster computing, Some famous projects on cluster computing ar...

Some famous projects on cluster computing are as follows: High Net Worth Project: (developed by: Bill McMillan, JISC NTI/65 - The HNW Project, University of Glasgow, The prim

Differentiate between protection and security, Differentiate between protec...

Differentiate between protection and security. Operating system contains a collection of objects, software or hardware. All objects have a unique name and can be accessed by

State the features of pentium series of microprocessors, State the features...

State the features of Pentium series of microprocessors: Pentium is a 32-bit superscalar, CISC microprocessor.  The term superscalar is used for processor that contains more th

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