Dynamic configuration and signaling, Computer Networking

Assignment Help:

Dynamic Configuration

  • int pvm_addhosts( char **hosts, int nhost, int *infos )

Add hosts to the virtual machine. hosts is an array of strings naming the hosts to be added. nhost states the length of array hosts. infos is an array of length nhost which returns the status for every host. Values less than zero shows an error, while positive values are TIDs of the new hosts.

Signaling

  • int pvm_sendsig( int tid, int signum )

Sends a signal to one more PVM process. tid is task identifier of PVM process to receive the signal. The signum is the signal number.

  • int info = pvm_notify( int what, int msgtag, int cnt, int *tids )

Request notification of PVM event such as host failure. What states the type of event to trigger the notification. Some of them are:

PvmTaskExit

Task killed or is exits.

PvmHostDelete

Host is crashes or deleted.

PvmHostAdd

New host is added.

msgtag is message tag to be used in notification. cnt For PvmTaskExit and PvmHostDelete, states the length of the tids array. For PvmHostAdd states the number of times to notify.

tids for PvmTaskExit and PvmHostDelete is an array of length cnt of task or pvmd TIDs to be notified about. The array is not used by the PvmHostAdd option.


Related Discussions:- Dynamic configuration and signaling

Pvm library routines, In this part we shall give a short description of the...

In this part we shall give a short description of the routines in the PVM 3 user library. Each PVM program should include the PVM header file "pvm3.h" (in a C program) or "fpvm3.h"

Summary of osi model, Q. Summary of osi model? - There was no standard ...

Q. Summary of osi model? - There was no standard for networks in the early period and as a result it was difficult for networks to communicate with each other. - The ISO (In

Explain the building blocks of client/server, The client side building bloc...

The client side building block moves towards the client side of the application. The server side building block moves towards the server side of the application.

Point out the drawbacks of token ring, Point out the drawbacks of Token Rin...

Point out the drawbacks of Token Ring. Few of the drawbacks of Token Ring are: a. Token Ring is very costly. All topology components cost much more than other more popular s

5 igrp supports a feature , 5 IGRP supports a feature that permits traffic ...

5 IGRP supports a feature that permits traffic to be distributed among up to 6 (4 default) paths to give greater allover throughput and reliability. What is this called? Ans) An

What is logical link control, What is logical link control? One of two ...

What is logical link control? One of two sublayers of the data link layer of OSI reference model, as explained by the IEEE 802 standard. This sublayer is responsible for mainta

Determine the load and throughput in slotted aloha system, In slotted Aloha...

In slotted Aloha system, it has been measured that 70% of slots are occupied by frames (i.e. the remaining slots are empty).  a)  How many frames need to be transmitted, on aver

Network design by detailing infrastructure, i have an assigment due and wan...

i have an assigment due and want some one to do my assognment

When would we use isdn, We use IDSN supports high speed voice, data and vid...

We use IDSN supports high speed voice, data and video and is a good choice for many small businesses.

What is silly window syndrome, What is silly window syndrome? It is a d...

What is silly window syndrome? It is a difficulty that can ruin TCP performance. This problem happens when data are passed to the sending TCP entity in large blocks, but an int

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