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

Error detecting code - parity bit, Error Detecting Code - Parity bit: ...

Error Detecting Code - Parity bit: The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receiver

What are tp-lite, What are TP-Lite and TP-Heavy Monitors? TP-Lite is si...

What are TP-Lite and TP-Heavy Monitors? TP-Lite is simply the integration of TP Monitor functions in the database engines. TP-Heavy is TP Monitors which handles the Client/S

What is an object server, With an object server, the Client/Server applicat...

With an object server, the Client/Server application is taken as a set of communicating objects. Client object commune with server objects using an Object Request Broker (ORB). The

Round trip time and time out - transport layer, Round Trip Time (RTT) and T...

Round Trip Time (RTT) and Time Out The  size and  the complexity  of computer  networks  have grown  in past years. To achieve  an efficient  and reliable transmission  some

Explain different network structures in use, Computer Networking 1. Exp...

Computer Networking 1. Explain different network structures in use. 2. Elaborate the architecture and usage of ISDN. 3. Discuss the concept of framing in Data Link Layer

Explain fully connected interconnection networks, Fully connected : It is t...

Fully connected : It is the most powerful interconnection topology.  In this every node is directly associated to all other nodes. The limitation of this network is that it needs t

Describe about radio waves, Radio Waves - Frequency ranges: 3 KHz to 1...

Radio Waves - Frequency ranges: 3 KHz to 1 GHz - Omni directional - Susceptible to interference by other antennas utilizing same frequency or band - Ideal for long-di

Explain the forward congestion avoidance process, Explain the Forward conge...

Explain the Forward congestion avoidance process Notifies the user that congestion avoidance process should be initiated where applicable for traffic in the similar direction a

What are the two functions of the data link mac layer, a) Manages protocol ...

a) Manages protocol access to the physical network medium b) Permits multiple devices to uniquely signify one another on the data link layer

Why congestion occurs, Q. Why congestion occurs? Congestion Emerg...

Q. Why congestion occurs? Congestion Emerge if the load on the network is greater than the capacity of the network - Load that is the number of packets sent to the net

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