What do you mean by shared memory, Computer Engineering

Assignment Help:

Q. What do you mean by Shared Memory?

In shared memory scheme more focus is on controlling parallelism instead of data parallelism. In this model numerous processes run independently on numerous processors but they share a common address space available to all as displayed in Figure.

2186_Shared Memory.png

Figure: Shared memory

The processors communicate with one another by one processor writing data into a location in memory and other processor reading the data. Any change in memory location effected by one processor is visible to all other processors. As shared data is able to be accessed by more than one process at the same time, some control techniques like semaphores/locks must be devised to make sure mutual exclusion. This model is frequently referred to as SMP (Symmetric Multi Processors) named so since a common symmetric operation is used for various processors of the similar type to access the similar shared memory.  Some multi-processor systems employ a shared-memory programming model illustrations comprise: DELL PowerEdge 8450, NEC SX-5, SGI Power Onyx/ Origin 2000; Hewlett-Packard V2600/HyperPlex; SUN HPC 10000 400 MHz.


Related Discussions:- What do you mean by shared memory

Fact finding techniques on banking system, what are the questionnaries and ...

what are the questionnaries and observation of work site for banking system?

Cohesion, Identify the type of cohesion in the following statements: 1. ...

Identify the type of cohesion in the following statements: 1. Compute average daily temperatures at various sites 2. Initialize sums and open files 3. Create new temperature rec

Show block diagram of sequential circuits, Q. Show block Diagram of sequent...

Q. Show block Diagram of sequential circuits? A sequential circuit is an interconnection of storage elements and combinational circuits. The storage elements known as flip-flop

Find a connection factory, Why do I get an exception when trying to find a ...

Why do I get an exception when trying to find a connection factory? Ans) The exception is regularly something like java.io.InvalidClassException or java.lang.NoClassDefFoundErro

What are the role of an operating system, What are the role of an operating...

What are the role of an operating system? Sharing the Processor Virtual Machine: Resource management: Memory Management

Describe the size and speed of scanners, Q. Describe the Size and Speed of ...

Q. Describe the Size and Speed of Scanners? Before actual scanning, a quick, low resolution scan known as pre-scan is made to preview the image and select scanning area. After

Face detection, i want the matlab code for the following events 1. face det...

i want the matlab code for the following events 1. face detection 2. video to frame conversion 3.video shot boundary detection

Execute the command in linux, Now that the user's command has been parsed i...

Now that the user's command has been parsed into an array of char*, we can pass this to the OS to execute the command. To execute the command, use the execvp() function from unis

What is a table attribute, What is a Table attribute? The table's attr...

What is a Table attribute? The table's attributes verifies who is responsible for maintaining a table and which types of access are permitted for the table.  The most signific

How to work in dreamweaver?, HOW TO WORK IN DREAMWEAVER? How and Where ...

HOW TO WORK IN DREAMWEAVER? How and Where to open Dreamweaver? Step 1: Click on Start Step 2: Select Program Step 3: Select Macromedia Dreamweaver Step 4: Click on

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