Set up to use pvm run and complie, Computer Networking

Assignment Help:

PVM uses two environment variables when starting and running. Every PVM user needs to set these two variables to use PVM. The initial variable is PVM_ROOT, which is set to the location of the installed pvm3 directory. The second variable is PVM_ARCH , which notify PVM the architecture of this host. The simplest method is to set these two variables in your.cshrc file. Here is an example for setting PVM_ROOT:

setenv PVM_ROOT $HOME/pvm3

The user can set PVM_ARCH by concatenating to the file .cshrc, the content of file

$PVM_ROOT/lib/cshrc.stub.

Starting PVM

To start PVM, on any host on which PVM has been installed we can write

% pvm

The PVM console, called pvm, is stand-alone PVM tasks that let the user to interactively start, query, and change the virtual machine. Then we can add hosts to virtual machine by typing at the console prompt (got after last command)

pvm> add hostname

To delete hosts (excluding the one we are using ) from virtual machine we can write

pvm> delete hostname

We can see the configuration of the present virtual machine, we can write

pvm> conf

To see what PVM tasks are running on the virtual machine, we should write

pvm> ps -a

To close the virtual machine environment, we should write

pvm> halt

Multiple hosts can be added concurrently by typing the hostnames in a file one per line and then write

  % pvm hostfile

PVM will then add all the listed hosts concurrently before the console prompt appears.

Compiling and Running the PVM Program

Now, we shall study how to compile and run PVM programs.  To compile the program , modify to the directory pvm/lib/archname where archname is the architecture name of your computer. Then the following command are:

cc  program.c -lpvm3 -o program

will compile a program known as program.c. After compiling, we can put the executable file in the directory pvm3/bin/ARCH. Also, we require to compile the program separately for each architecture in virtual machine. In case we use dynamic groups, we should also add -lgpvm3 to the compile command. The executable file will be run. To do this, first run PVM. After PVM is running, executable file might be run from the unix command line, similar to any other program.

PVM supplies an architecture-independent make, aimk, that automatically decides PVM_ARCH and links any operating system definite libraries to your application. To compile the C example, type

% aimk master.c

Now, from one window, start PVM and configure some hosts. In another window change directory to $HOME/pvm3/bin/PVM_ARCH and type

% master

It will ask for a number of tasks to be implemented. Then type the number of tasks.


Related Discussions:- Set up to use pvm run and complie

C-band earth station , Normal 0 false false false EN-US...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Classless addressing over classfull addressing scheme, What is the benefit ...

What is the benefit of using classless addressing over classfull addressing scheme?

Performance metrics of networks, The performance of interconnection network...

The performance of interconnection networks is measured on the below parameters.  1) Bandwidth: It determines maximum transfer rate between any two nodes.  It is measured in MB

When a switch is said to be congested, When a switch is said to be congeste...

When a switch is said to be congested? It is possible that a switch receives packets faster than the shared link can accommodate and keeps in its memory, for an extended period

Show the tcp/ip and osi similarities, Q. Show the TCP/IP and OSI Similariti...

Q. Show the TCP/IP and OSI Similarities? TCP/IP and OSI Similarities - Both have Layers - Both have Application Layers - Have Comparable Transport and Network Layer

Determine the advantages of fast ethernet, Fast Ethernet Operates a...

Fast Ethernet Operates at 100 Mbps faster speeds required for image processing, CAD, real-time audio and video No change in frame addressing, format or access method

What is point to point link, What is point to point link? It refers to ...

What is point to point link? It refers to a direct connection among two computers on a network. A point to point connection does not require any other network devices other tha

Layer, what is end to end and host to host?

what is end to end and host to host?

Tqm in design manufacturing, Quality assurance through statistical methods...

Quality assurance through statistical methods is a key component in a manufacturing organization where TQM generally starts by sampling a random selection selection of th

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