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

Write SOP& POS form of a combinational circuit, A combinational circuit has...

A combinational circuit has 3 inputs A, B, C and output F.  F is true for following input combinations A is False, B is True A is False, C is True A, B, C are

Explain basic time division and time switching method, What is time divisio...

What is time division switching? With the help of block diagram explain basic time division and time switching method. Time Division Switching: A switching component can be s

Different ways in which a thread can be cancelled, What are the different w...

What are the different ways in which a thread can be cancelled?  Cancellation of a target thread may occur in two different scenarios: Asynchronous cancellation: One thre

Determine by which final selector is connected, The final selector is conne...

The final selector is connected to the (A) calling subscriber.                     (B) switching network. (C) called subscriber.                      (D) li

What are links and associations, What are links and associations? Link ...

What are links and associations? Link is a physical or conceptual connection between objects. A link is an instance of an association.  Association is a explanation of group

Uniform path cost search - artificial intelligence, Uniform Path Cost Searc...

Uniform Path Cost Search - artificial intelligence: A breadth first search will find the solution with the shortest path length from the initial state to the goal state. In fa

Central processing unit - computer architecture, Central processing unit (C...

Central processing unit (CPU) : The part of the computer which executes program instructions is known as the processor or central processing unit (CPU). CPU is over single ele

Intel architecture – 64, IA-64 (Intel Architecture-64) is a 64-bit processo...

IA-64 (Intel Architecture-64) is a 64-bit processor architecture created in cooperation by Hewlett-Packard and Intel applied by processors like Itanium. The objective of Itanium wa

Workday versus oracle, Workday has set the stage to revolutionize the way c...

Workday has set the stage to revolutionize the way companies manage and facilitatevarious aspects of their business operationsby utilizing cutting-edge cloud-based technologies in

What is a multiple line field, What is a multiple line field? A multipl...

What is a multiple line field? A multiple line field is a special part of field which allows the user to enter multiple lines of data into it.

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