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

What are ramps, Ramps A network planning method that makes the most wel...

Ramps A network planning method that makes the most well-organized use of manpower, materials and cash resources between several projects going on concurrently.

Describe about the forms-DBMS, Describe about the Forms- DBMS Forms ar...

Describe about the Forms- DBMS Forms are generally known as data entry screens as they are user interface that allows data in the tables to be viewed, edited or entered. Forms

Explain the essential elements of electronic data interchang, What are the ...

What are the essential elements of Electronic Data Interchange. The necessary elements of Electronic Data Interchange (EDI) are: The use of an electronic transmission me

What are the different auto reports available in access, What are the diffe...

What are the different auto reports available in Access? The dissimilar auto reports available in Access are: Columnar AutoReport: makes a report where each row is shown ver

What are the functions of passes used in two-pass assembler, What are the f...

What are the functions of passes used in two-pass assembler? In an assembly language program, two pass translations can handle forward references early. The subsequent task

Define von neumann architecture, Von Neumann architecture was first majoran...

Von Neumann architecture was first majoranticipated structure for general-purpose computer. However before consideringmain components of von Neumann architecture let us first elabo

Define the circular shifts, Q. Define the Circular shifts ? Circular sh...

Q. Define the Circular shifts ? Circular shifts ROTATE RIGHT andROTATE LEFT. Bits shifted out at one end of word are not lost as in a logical shift however are circulated back

Explain about programmable logic array, Q. Explain about Programmable Logic...

Q. Explain about Programmable Logic Array? Until now individual gates are considered as fundamental building blocks from that different logic functions can be derived. With the

What do you mean by true complement method, Q. What do you mean by True Com...

Q. What do you mean by True Complement Method? Explain in detail. Q. Show IEEE format for (12.75)10. Q. What are the various ways to represent Negative Numbers in computer sy

Define functionality of application layer in tcp/ip protocol, Define the fu...

Define the functionality of application layer in TCP/IP protocol stack? Function of Application Layer: The top layer within the Internet reference model is the applicatio

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