Functions for message passing, Computer Engineering

Assignment Help:

Functions for Message Passing:

MPI processes don't share memory space and one process can't directly access other process's variables. Therefore they need some form of communication among themselves. In MPI environment this communication is in form of message passing. A message in MPI comprises the subsequent fields:

msgaddr: It can be any address in sender's address space and denotes to location in memory where message data begins.

count:  Number of amount of data items of message datatype comprised in message.

Source or dest: Rank of transmitting or receiving process in communicator.

Tag: Identifier for specific message or type of message. It permits the programmer to deal with the arrival of message in a systematic way even if the arrival of the message isn't orderly.

Comm.: Communicator. It is an object wrapping context in addition group of a process. It is allocated by system rather than user.


Related Discussions:- Functions for message passing

Non-repudiation achieved in designing e-cash based system, How can non-repu...

How can non-repudiation be achieved into designing e-cash based system? E-cash is fundamentally an online solution. The buyer should validate the coins by the issuer so as to g

What are the authentication methods in .net, What are the authentication me...

What are the authentication methods in .NET?   1. WINDOWS AUTHENTICATION 2. FORMS AUTHENTICATION 3. PASSPORT AUTHENTICATION The authentication option for the ASP.N

Write a program to event advertised, A museum has a collection of old poste...

A museum has a collection of old posters advertising events of various kinds (theatre, sport, fairs, lectures etc.). It wishes to keep a record of these, containing, for each poste

What is knowledge representation and reasoning, Artificial Intelligence Kno...

Artificial Intelligence Knowledge show (KR) is an area of artificial intelligence research aimed at showing knowledge in symbols to facilitate inferrencing from those knowledge ele

Explain the relationship between translated & linked address, Explain the r...

Explain the relationship amongst Translated address and Linked address. Translated address: Address assigned through the translator Linked address: Address assigned

Illustration of disk formatting, Q. Illustration of disk formatting? An...

Q. Illustration of disk formatting? An illustration of disk formatting is displayed in Figure below. In this case every track comprises 30 fixed-length sectors of 600 bytes eac

What is arithmetic and logic unit, What is Arithmetic and Logic Unit Ar...

What is Arithmetic and Logic Unit Arithmetic and Logic Unit: The ALU is the 'core' of any processor. It implements all arithmetic operations (addition, multiplication, subtract

Find out if a particular file is available in a disk, Q. Find out if a part...

Q. Find out if a particular file is available in a disk in DOS? Sometimes you may like to find out if a particular file is available in a disk. In that case, you can identify t

What is an i/o interface, What is an I/O Interface? Input-output interf...

What is an I/O Interface? Input-output interface provides a method for transferring binary information among internal storage, like memory and CPU registers, and external I/O d

Define password methods and biometric systems, Define the password methods ...

Define the password methods and Biometric systems for implementing client server network security. In cyberspace, buyers and sellers cannot notice each other. Also within video

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