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

Determine no.of processes to avoid race condition, To avoid race condition,...

To avoid race condition, the maximum number of processes that may be simultaneously inside the critical section is The maximum number of processes is one to ignore race conditi

What is a switchboard, What is a switchboard A switchboard is only a f...

What is a switchboard A switchboard is only a form with command button that open other switchboard or perform tasks like opening forms and printing reports. Switchboard is a t

Define parity bit and list its types, Define parity bit and List its types....

Define parity bit and List its types. The most common error detection code used is the parity bit. Parity bit is a extra bit contained with a binary message to make the total n

Does weblogic jms support clustering, WebLogic JMS handles cluster-wide, tr...

WebLogic JMS handles cluster-wide, transparent access to destinations from any server in the cluster. A system administrator can set up cluster-wide, transparent access to destinat

Unification algorithm - artificial intelligence, Unification Algorithm - Ar...

Unification Algorithm - Artificial intelligence: To merge two statements, we should get a substitution which forms the two sentences similar. Remember that we write V/T to sign

Technical Support Engineer, I''m seeking a challenging professional working...

I''m seeking a challenging professional working position in the field of Information Technology,where I’ll be given the chance to enhance & expand the skills & experience

Find farthest distance from exchange where subscriber locate, An exchange u...

An exchange uses a -40 V battery to drive subscriber lines. A resistance of 250 ohms is placed in series with the battery to protect it from short circuits. The subscribers are req

The types of parameters in the function modules, What are the types of para...

What are the types of parameters in the function modules? In general, function module can have four types of parameters: EXPORTING : for passing data to the called function

GRID COMPUTING, I NEED THE CODES IN MATLAB FOR RESOURCE ALLOCATION IN GRID ...

I NEED THE CODES IN MATLAB FOR RESOURCE ALLOCATION IN GRID COMPUTING

System development and data administration, Q. System Development and Data ...

Q. System Development and Data Administration? System Development: In traditional business systems analysts and programmers are organized into permanent teams which support i

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