Message passing programme development environment, Computer Networking

Assignment Help:

Message Passing Programme Development Environment

In a multicomputer system, the computational load among various processors must be balanced. To pass information among various nodes, message-passing technique is used. The programming environment of a multicomputer contains a host runtime system and resident operating system known as Kernel in all the node computers. The host system gives uniform communication among processes without intervention of the nodes, network connection and host workstation.  Host processes are located outsides the nodes. The host environment for hypercube computer at Caltech is a UNIX processor and uses UNIX and language processor utilities to communicate with node processes. The Kernel is separately located in each node computer that supports multiprogramming with an address space confined by local memory.  Many node processes can be created at each node.  All node processes execute concurrently in different physical node or interleaved through multiprogramming within the same node.  Node processes communicate with each other by sending or receiving messages.

he messages can be of a variety of types.  A particular field of all messages can be reserved to represent message type. The message passing primitives are as follows:

  • Send (type, length, buffer, node process)
  • Receive (type, length, and buffer)

Where type classified the message type, buffer shows location of the message, length specifies the length of the message, and node designates the destination node and process shows process ID at destination node.  Send and receive primitives are used for indicating the sending and receiving processes respectively.  The buffer field of send shows the memory location from which messages are sent and the buffer field of receive indicates the space where arriving messages will be stored.


Related Discussions:- Message passing programme development environment

Network access technologies, Question 1 Explain the following with respect...

Question 1 Explain the following with respect to Data Encoding                     Digital Signaling of Digital Data                     Digital Signal Encoding Techniques Questi

What is bipolar encoding, Q. What is Bipolar Encoding? - Uses three vol...

Q. What is Bipolar Encoding? - Uses three voltage levels negative, positive and zero - Zero level represents binary 0; 1s are represented with alternating positive and negat

What does jade stands for, QUESTION (a) Briefly describe the dire...

QUESTION (a) Briefly describe the direct coordination model and the meeting oriented coordination model (b) What does JADE stands for? (c) Name the three spec

Causes of failures, CAUSES OF FAILURES Every failure has a well-define...

CAUSES OF FAILURES Every failure has a well-defined cause.  Any system or device has an inherent strength or capacity to resist failures. This depends on design, material, man

What is dynamic host configuration protocol, How does dynamic host configur...

How does dynamic host configuration protocol aid in network administration? Instead of having to visit every client computer to configure a static IP address, the network admin

Encoding data options in parallel virtual machine , Encoding data options ...

Encoding data options PVM uses SUN's XDR library to generate a machine independent data format if you request it. Settings for the encoding option are: PvmDataDefault: Use X

What are general middleware, What are General Middleware? It contains t...

What are General Middleware? It contains the communication stacks, authentication services, distributed directories, network time, RPC, Queuing services with the network OS ext

Design the user interface for mode switching, Design the user interface for...

Design the user interface for mode switching and data entry any way that you like. For example, to switch an application from transmit mode to receive mode, you can give it special

Multi tasking environment, Multi Tasking Environment Multi tasking exp...

Multi Tasking Environment Multi tasking exploits parallelism by: 1)  Concurrently using the multiple functional units 2)  Pipelining functional units are pipe line toget

What is piggybacked ack, What is piggybacked ACK The protocol will be i...

What is piggybacked ACK The protocol will be incorrect. Suppose that 3-bit sequence numbers we are using. Consider following situation: A just send frame 7. B gets frame

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