Explain what are the different hazards, Computer Engineering

Assignment Help:

There are situations, called hazards that stop the next instruction in the instruction stream from implementing during its designated clock cycle. Hazards decrease the performance from the ideal speedup gained by pipelining. There are three classes of Hazards:

1. Structural Hazards: It happens from resource conflicts when the hardware cannot support all possible combinations of instructions simultaneously in overlapped implementation.

2. Data Hazards: It happens when an instruction depends on the results of last instruction in a way that is exposed by the overlapping of instructions in the pipeline.

3. Control Hazards: It happens from the pipelining of branches and other instructions that change the PC.

 

 


Related Discussions:- Explain what are the different hazards

Determine the framed data including a parity bit, Determine the Framed data...

Determine the Framed data including a parity bit   For illustration when even parity is chosen, parity bit is transmitted with a value of 0 if the number of preceding

Explain about asynchronous message passing, Q. Explain about Asynchronous m...

Q. Explain about Asynchronous message passing? In Asynchronous message passing message transmitting and receiving aren't synchronized in space and time. The store and forward

How many input ANDand OR gates are required, How many two input AND gates a...

How many two input AND gates and two input OR gates are required to realize Y = BD+CE+AB ? Ans. Here three product terms, therefore three AND gates of two inputs are needed.

What happens if acknowledge() is called within a transaction, As per the JM...

As per the JMS specification, when you are in a transaction, the acknowledge Mode is ignored. If acknowledge() is known as within a transaction, it is ignored.

What specifies by environment variable in cgi script, The Environment varia...

The Environment variable SCRIPT_NAME in CGI script specifies? In CGI script gives the path of URL after server name.

What is presentation layer, Q. What is Presentation layer? Presentatio...

Q. What is Presentation layer? Presentation layer: When two hosts are communicating with each other they might use different coding standards and character sets for represent

Cluster computing, The concept of clustering is definite as the use of mult...

The concept of clustering is definite as the use of multiple computers, typically PCs or multiple storage devices, UNIX workstations, and their interconnections, to form what appea

Explain the term overlays, Explain the term Overlays. An overlay is an ...

Explain the term Overlays. An overlay is an element of program that has the same load origin as several other part of the program. These are used for reduce the main memory req

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