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

Company access - computer network, Company Access Company  access is t...

Company Access Company  access is that in which  end systems are connected in connecting end  systems in a organization or educational  institution into the network. On  co

Compare Intranet with Internet and LAN, Intranet vs Internet vs LAN It...

Intranet vs Internet vs LAN It is certainly possible that both Intranets and the Internet can coexist. As spelt theoretically, the entire Intranet could be located at a remote

What is a file server, File servers are useful for sharing files through a ...

File servers are useful for sharing files through a network. With a file server, the client passes requests for file records over network to file server

Issues to process of message passing, The following issues are decided by t...

The following issues are decided by the system in the process of message passing: 1) Whether the communication link is established or not 2) Whether the receiver is ready to

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"

Use of coaxial cable, Has a central core conductor covered in an insulating...

Has a central core conductor covered in an insulating sheath encased in an outer conductor of metal foil  RG numbers indicate physical specs such as thickness and type of insula

What does the user datagram protocol (udp) , UDP is connectionless, and doe...

UDP is connectionless, and does not give error checking. But remember, error checking can happen at other layers too.

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