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

Compute the positive integer and square root, Question: Q1) Write a cod...

Question: Q1) Write a code that asks the user for a positive integer, computes the square root of that integer, and return the result to the user. The computational error needs

Define usb, Define USB. The Universal Serial Bus(USB) is an industry st...

Define USB. The Universal Serial Bus(USB) is an industry standard developed to give two speed of operation known as low-speed and full-speed. They provide simple, low cost and

Write html code to accomplish the web page to insert frame, Write the HTML ...

Write the HTML code to accomplish the web page to insert the frame extending 300 pixels across the page from left side. The HTML code to accomplish the web page is given below

Digital electronics, design a ciruit which can work as a 4-bit binary adder...

design a ciruit which can work as a 4-bit binary adder as well as subtractor

What is page fault, What is page fault? Its types? Page fault refers to...

What is page fault? Its types? Page fault refers to the situation of not having a page in the major memory when any process references it. There are two kinds of page fault :

What is the scope of public members in all classes, What is the Scope of pu...

What is the Scope of public/private/friend/protected/protected friend?    Scope of public/private/friend/protected/protected friend. Visual Basic/Visual C# Public/pub

Input, what is an input?

what is an input?

Dynamic screen sequence, Dynamic screen sequence  for a  screen can be set ...

Dynamic screen sequence  for a  screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.

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

What is super scalar architecture, Super scalar architecture Pentium m...

Super scalar architecture Pentium microprocessor is organized with three execution units. One executes floating-point instructions and other two (U-pipe and V-pipe) execute in

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