Explain concurrent sharing, Computer Engineering

Assignment Help:

Explain Concurrent Sharing

Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. There are three types of concurrent sharing:

1. Immutable files: If a file is shared in immutable mode, none of the sharing programs can alter it. This mode has the benefit that sharing programs are independent of one another.

2. Single image immutable files: Here the modifications made by one program are instantaneously visible to other programs. The UNIX file system employs this file-sharing mode.

3. Multiple image mutable files: Here several programs can concurrently update the shared file. Each updating program makes a new version of the file that is different from the version made by concurrent programs.

This sharing mode can just only be used in applications in which concurrent updates and the existence of several versions are meaningful.


Related Discussions:- Explain concurrent sharing

Single program multiple data, SPMD is actually a "high level" programming m...

SPMD is actually a "high level" programming model that can be built upon any combination of the previously mentioned parallel programming models. A single program is executed by al

Internet application development, As an employee of an up and coming web De...

As an employee of an up and coming web Design Company, you have been approached by a small local cinema, called Valley Viewing who are looking to revamp their existing HTML website

Explain what are design patterns, Design Patterns are easy and elegant solu...

Design Patterns are easy and elegant solutions of commonly having problems in software design. Design Patterns make it simpler to reuse successful designs and architectures of expe

Explain 16-bit ROM array, Draw the logic diagram of 16-bit ROM Array and ex...

Draw the logic diagram of 16-bit ROM Array and explain its principle of operation. Ans: 16-bit ROM Array: A ROM that is read-only memory is an array of selectively closed

Hypertext markup language, Web pages or materials which are in the form of ...

Web pages or materials which are in the form of hypermedia documents accessed through Internet can be located anywhere in world. No matter from where they originated, most Web d

What is the semiconductor memory chip, What is the Semiconductor memory chi...

What is the Semiconductor memory chip A semiconductor memory chip comprises a large number of cells organized into an array and the logic necessary to access any array in the c

Opcode field of an instruction, For this machine there can be two more poss...

For this machine there can be two more possible addressing modes in addition to direct andimmediate.   Opcode field of an instruction is a group of bits which define various pro

What is a scope resolution operator, A scope resolution operator (::), can ...

A scope resolution operator (::), can be used to describe the member functions of a class outside the class.

Megaflops, Speed in scientific computing is measured in megaflops, gigaflop...

Speed in scientific computing is measured in megaflops, gigaflops, teraflops and petaflops. A megaflop is 10 6 floating point arithmetic operations (+, -, *, /) in one second What

Flow-between matrix layout problem, Solve the problem in page 346 of the pa...

Solve the problem in page 346 of the paper on cell formation by Boctor using the MIP method.  Use 4 cells and no more than 3 machines per cell. Solve the problem using the MIP m

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