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

Power and energy, Ask questiPower and EnergyQuestion 4Consider a processor ...

Ask questiPower and EnergyQuestion 4Consider a processor that runs at 2.5 GHz and 1 Volt. When running a given CPU-bound program,the processor consumes 100 W, of which 20 W is leak

Write truth table of combinational circuit, A combinational circuit has 3 i...

A combinational circuit has 3 inputs A, B, C and output F.  F is true for following input combinations A is False, B is True A is False, C is True A, B, C are

What start bit and stop bit, What start bit and stop bit The first bit ...

What start bit and stop bit The first bit known as the Start bit is always a zero and it is used to show the beginning of the character The last bit is known as the stop bit

Define local area network, LAN is a privately - owned computer networks con...

LAN is a privately - owned computer networks confined to small geographical area, like a factory or an office widely used to connect office PCs to share resources and information.

Data transmission and modems, Q. What is Data Transmission and Modems? ...

Q. What is Data Transmission and Modems? Data can be transferred between two stations in either serial or parallel transmission. Parallel data transmission, in which a group of

Explain management information base variables, Explain MIB (Management Info...

Explain MIB (Management Information Base) variables. MIB is a set of named items which an SNMP agent knows. To control or monitor a remote computer, a manager should fetch or s

Project, write a programme to simulate a train station to automate

write a programme to simulate a train station to automate

What are the two phases in the advancement of linux, What are the two phase...

What are the two phases in the advancement of Linux? State some Applications of Open Source Systems? Finance Educational Data Storage and Management ERP (Ent

Types of port, Define port? Give types of port available? Ans: An I/O in...

Define port? Give types of port available? Ans: An I/O interface consists of circuitry needed to connect an I/O device to computer bus. One side consists of a data path contain

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