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

Explain briefly how firewalls protect network, Explain briefly how firewall...

Explain briefly how firewalls protect network.       A firewall is simply a program or hardware device that filters the information coming by the Internet connection into your

Perceptrons of artificial neural networks, Perceptrons: However the we...

Perceptrons: However the weights in any ANN are usually just real numbers and the learning problem boils down to choosing the best value for each weight in the network. Becaus

What is the function of a tlb, What is the function of a TLB (translation...

What is the function of a TLB (translation look-aside buffer)? A small cache called the TLB is interporated into MMU, which having of the page table entries that correspondi

Level of any node of a tree, Level of any node of a tree is :- Its distanc...

Level of any node of a tree is :- Its distance from the root

What is associative mapping cache, Q. What is Associative Mapping Cache? ...

Q. What is Associative Mapping Cache? The most fastest and flexible cache organization employs an associative memory that is displayed in Figure below. The associative memory s

Including the titles, Your company is planning a party for employees, and y...

Your company is planning a party for employees, and you have been asked to set up a spreadsheet to track the attendees and to measure the associated cost. Every employee is permitt

Signalling connection control part and message transfer part, The Signallin...

The Signalling connection control part (SCCP) and message transfer part (MTP) together are referred to as (A) Signal Switching Points (SSPs) (B)  Signal Transfer Points

Determine the block diagram of bcd adder, Determine the block diagram of bc...

Determine the block diagram of bcd adder To add 0110 to binary sum, we use a second 4-bit binary adder. The two decimal digits, together with input-carry, are first added in to

Elements of composition, The Elements of composition are the formal languag...

The Elements of composition are the formal language used to communicate in the visual arts. The elements of composition can be loosely broken into 5 main elements, Line, shape, val

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