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

Computer Fundamentals, state and explain the advantages of having densely ...

state and explain the advantages of having densely packed integrated Circuits in the computer

What does the ''suppress dialog'' do, What does the 'SUPPRESS DIALOG' do? ...

What does the 'SUPPRESS DIALOG' do? Suppressing of whole screens is possible with this command.  This command permits us to perform screen processing "in the background".  Sup

What technology used by magento, Magento uses PHP as a web server scripting...

Magento uses PHP as a web server scripting language and the MySQL Database. The data model is based on the Entity-attribute-value model that stores data objects in tree structures,

Reference table and a reference field, A field containing currency amounts ...

A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain. As a reference table, a system having all the valid

Which objects are independent transport objects, Which objects are independ...

Which objects are independent transport objects? Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables, Structures, Views, Ma

Multisim simulation file, Build the circuit using the Asynchronous Counter ...

Build the circuit using the Asynchronous Counter Technique with JK FF and relevantgates capable of executing the counting sequence as {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}Simulate the cir

What is e-brokerage, What is e-brokerage? E-brokerage is an investment ...

What is e-brokerage? E-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.

Equivalence between vhdl and c, Equivalence between VHDL and C? There i...

Equivalence between VHDL and C? There is concept of understanding in C there is structure.Based upon requirement structure provide facility to store collection of various data

Which method is used for resolving data dependency, Which method is used fo...

Which method is used for resolving data dependency conflict by the compiler itself?  (A) Delayed load.   (B) operand forwarding.   (C) Pre fetch target instruction.  (D) loo

How can we use ordered lists, Q. How can we use Ordered Lists? Lists ha...

Q. How can we use Ordered Lists? Lists having numbered items are termed as ordered lists. They are used when items in the list have a natural order. They can also be used when

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