Hazard (computer architecture):

In the computer architecture, a hazard is a possible problem that can occurs in a pipelined processor. It concern to the possibility of erroneous computation when a CPU tries to simultaneously execute multiple instructions which exhibit data dependence. There are typically 3 types of hazards:1) branching hazards 2) structural hazards and  3) data hazards (control hazards).

Instructions in a pipelined processor are executed in various stages, so that at  any given time many instructions are being executed, and instructions cannot be completed in the required order.

A hazard takes place when two or more of these simultaneous (possibly out of order) instructions conflict.

i) Data hazards

a)RAW - Read After Write

b) WAR - Write After Read

c) WAW - Write After Write

ii) Structural hazards

iii) Branch (control) hazards

iv) Eliminating hazards

a)Eliminating data hazards

b) Eliminating branch hazards 

 

Posted Date: 10/13/2012 4:00:55 AM | Location : United States

Ask an Expert

Related Discussions:- Hazard (computer architecture), Assignment Help, Ask Question on Hazard (computer architecture), Get Answer, Expert's Help, Hazard (computer architecture) Discussions

Write discussion on Hazard (computer architecture)
Your posts are moderated

Write your message here..

Related Questions

Assignment for statical natural language processing, Hi I study master of ... Hi I study master of computer science I have assignment for subject statical natural language processing . I need solved due date on 6 May2014 at 11 pm Australia time I need yo

Explain cgi standard, Explain CGI standard. The CGI Standard: Techno... Explain CGI standard. The CGI Standard: Technology utilized for building dynamic web documents is termed as Common Gateway Interface (CGI). The CGI standard gives how a serv

Device drivers in unix, Device Drivers in UNIX, MS-DOS and Windows System ... Device Drivers in UNIX, MS-DOS and Windows System Though device drivers are in effect add-on modules they are however considered to be part of system because they are closely i

What is arrays pointers, Q. What is Arrays Pointers? An array is a coll... Q. What is Arrays Pointers? An array is a collection of similar type of data. Arrays are extremely popular data structures in parallel programming because of their easiness of

What do you mean by prototype, Q. What do you mean by Prototype? A prot... Q. What do you mean by Prototype? A prototyping approach lay emphasis on the construction model of a system. Designing and building a scaled-down though functional version of a

Explain the regular expression and transition diagram, State the relation a... State the relation among Regular Expression, Transition Diagram and Finite State Machines. By using a simple instance establish your claim.   Answer: For each regular language,

Identifying stakeholders, I have chosen an imaginary example to illustrate... I have chosen an imaginary example to illustrate the different stakeholder categories. At Home sells a selection of consumer products, currently listed in a paper catalogue, whi

What information is stored in a typical TLB table entry, In a simple paging... In a simple paging system, what information is stored in a typical Look-aside Buffers  TLB table entry? A classical TLB table entry contains page# and frame#, while a logical

Which two properties are on every validation control, Which two properties ... Which two properties are on every validation control?  Two properties are:- a) Control to validate b) Error Message.

Determine the equivalent in octal of decimal number, Convert decimal 153 to... Convert decimal 153 to octal. Equivalent in octal will be ? Ans. (153) 10 = (231) 8