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

Various phases of consumer merchantile model, What are the various phases o...

What are the various phases of consumer merchantile model and also differentiate between prepurchase interaction & post purchase interaction.    There are three phase of consumer

Incorporating javascript into a web page, As we already know, HTML (Hyperte...

As we already know, HTML (Hypertext Markup Language) is the language we use to create Web documents. Now we will read "Hello World!" As given below:

Advantages on electronic payment system, Advantages on electronic payment s...

Advantages on electronic payment system It gives good security schemes.  Four necessary security requirements for safe e-payments are Authentication, Encryption, Integrity,

Describe target processor arrangements, Q. Describe target processor arrang...

Q. Describe target processor arrangements? Having seen how to describe one or more target processor arrangements we need to initiate mechanisms for distributing data arrays ove

Find out the hexadecimal sum, Find the hex sum of (93) 16 + (DE) 16 ? Ans...

Find the hex sum of (93) 16 + (DE) 16 ? Ans. Hex Sum of (93) 16 + (DE) 16 Convert Hexadecimal numbers 93 and DE to there binary equivalent demonstrated below:- Hence (9

Calculate number of trunks for time multiplexed space switch, Calculate the...

Calculate the number of trunks that can be supported on a time multiplexed space switch given that, 32 channels are multiplexed in each stream, while the control memory access time

Overview of the dreamweaver work area, Q. Overview of the Dreamweaver work ...

Q. Overview of the Dreamweaver work area? Let's start with a brief overview of the Dreamweaver work area. If you haven't already launched Dreamweaver, double-click Dreamweaver

Explain physical characteristics of magnetic disk, Q. Explain Physical Char...

Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe

What is fork, What is Fork Clk gets its value after 1 time unit, rese...

What is Fork Clk gets its value after 1 time unit, reset after 10 time units, enable after 5 time units, data after 3 time units. All the statements are executed in parallel.

State about dynamic modelling and its inputs, State about Dynamic modelling...

State about Dynamic modelling and its inputs Dynamic modelling is elaborated further by adding concept of time: new attributes are computed, as a function of the attribute chan

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