1. GENERAL INFORMATION ABOUT THE COMPUTER SYSTEM

            The computer facilitities at Institute of Physics include facility for numerical and algebric computation, graphic applications, documentations, email, internet and automation of library and administration. There are about twenty workstations and one hundred thirty PC's installed in the computer centre, library, laboratories, offices of faculties, scholars and administration in three different buildings connected by Local Area Network. The machines for academic use run under UNIX or Linux and those in administrative offices are run under Windows operating system. User's data is stored in two fileservers with total storage capacity of 400GB. Institute of Physics is a node under ICOSER project and encourages use of its facility for academic work. Programs which require extensive numerical work are run in the multi-CPU HPK260 workstations and the 16-CPU PC-Cluster. Parallel processing compilers have been loaded in these machines to speed up computation. Several softwares, such as Mathematica, Matlab, Maple are avilable for algebric comptation. For graphical analysis, Gnuplot, XMGR are being used and for Latex is used for documentation. General scientific library softwares like SCILAB, CERNLIB are available. The administrative works, such as accounting, personnel management, stores have been computerised . Printers are provided in every faculty and administrative office. Laser printers are provided for general use with network printing facility. The internet access to Institute is provided by Software Technology Parks of India, Bhubaneswar, at 1MBPS. In addition, Institute of Physics is a node under ANUNET and is directly linked to other ANUNET nodes by VSAT link. The computer centre is open 24 hours a day.

  2. LIST OF MAIN MACHINES

    1. 16-CPU Pentium-IV PC Cluster
    2. 4-CPU HP K260 workstation
    3. 3-CPU HP K260 workststion (Three)
    4. HP C200 workstation (Seven)
    5. SUN Ultra 10 workstation (Four)

  3. SOFTWARES FOR ALGEBRIC PROCESSING

    1. Mathematica 4.1 (HP UNIX, Linux)
    2. Matlab 6.0 (HP UNIX)
    3. MAPLE V (HP UNIX, Linux)


  4. SPECIAL SOFTWARES LIBRARIES

    1. CERN LIB
    2. IMSL


  5. USER ACCOUNT

            Members belonging to academic community, technical and administrative staff of Institute are given user accounts. In addition, user accounts are given for limited period to faculties and PhD students of nearby Universities and colleges for academic use.

  6. RULES AND REGULATIONS

    1. Only persons with valid login id can use the computer system of the Institute.
    2. The user should use a password which is secure and should not convey the password to others.
    3. Users should not lock the terminal for prolonged period (more than 15 minutes).
    4. Users should not reboot the machines by themselves.
    5. Long jobs should not be run in the background on the machines which are kept for general use.
    6. Books and manuals should be used only inside the computer centre and should not be not be taken out of computer centre.
    7. Users should not leave their notes and belongings in the computer centre.


  7. HELP

    1. LATEX:

      For the Latex Mannual click here
      You can also get an acrobat file from here

    2. CONVERTING FILES TO POSTSCRIPT

      if it is postscript level 3, please convert it to lower level by giving command
      ps2ps -dLanguageLevel=2 input.ps converted.ps

    3. COMPILERS:

      1. f77
      2. f90
      3. gcc
      4. g++


    4. PLOTTING:

      1. gnuplot
      2. xmgr, xmgrace


    5. SOFTWARE PACKAGES:

      1. Mathematica
      2. Maple
      3. IMSL


    6. GRAPHICS MANIPULATING PACKAGES:

      1. xfig
      2. dia
      3. display


    7. PARALLEL PROCESSING:

  8. ELEMENTARY COMMANDS



    For the elementary UNIX commands click here.

    1. Logging in:

      1. At login prompt, please enter your login_name and press enter key.
      2. The systems would prompt for password. Please enter your password, which will not be shown in the monitor and press enter.
      3. If login_name and passwords are correctly entered, the computer logs you in, otherwise a message is displayed that login was incorrect
      4. You can see a list of your files by entering command "ls". You can create a new directory "new_dir" by command mkdir <new_dir>. To change to a directory "dir_name", enter cd dir_name.
      5. You can log out by cliking on logout menu in X-window or by typing "exit" in single-user terminal.

    2. Changing your password:

      1. You can change your password by entering command"yppasswd". The system would ask you first for the old password and then for the new password twice.
      2. Please give a pasword which is not simple and not related to your name and preferably contain characters like * , ( ) + etc. Please chagne your password from time to time for security.

    3. To see Mail:

      To see mail, please enter "pine". Here the system would ask you for your login name and password.Help for pine commands are given in the menu.

      Elementaty commands under Pine

      C :      To compose message.
                 Enter email address in address field.
                 Enter address in CC if you want to send copy of the mail to somebody else also,  otherwise press enter. 
                 Write subject head in the Subject field. Type message below the Message Text line.
                 Enter ^X to send message.
                 Enter ^C to cancell sending the message.
      L :      Shows a list of folder. Select a folder by moving the cursor.
      I  :      Selects the current folder.
      Q :      Quit pine.

    4. To Print using Network Printers:

      To print use the following commands from any terminal:

      pr1cc      : Duplex printing by Laser printer in the Computer centre.
      pr1mb    : Duplex printing by Laser printer in room G07 of the Main Building
      pr1mb1  : Single sided printing in the Color Laser printer in room G07 of the main Building.

    5. To Edit  files:

      To edit files you can use "vi" or "emacs" editors.
      More userfriendly Graphics User Interface editors are xemacs, vim, gvim, gedit, 

      Editing with "vi" editor:

      Enter vi <filename > to edit a file with name <filename>.
      Enter i to insert characters.Enter esc to exit from insert mode.
      Enter ESC to exit from insert mode.
      Use arrow keys to move up, down, left, right in text
      Use x to delete a character and dd to delete the current line.
      yy keeps one line in memory and p puts this line after the cursor.
      Enter :wq to write to the file and quit.

    6. To transfer files:

      Use command "ftp" to transfer files from one machine to other.

      SYNTAX IS     ftp remote_machine

      If the remote machine can be accessed over the network for ftp service, the remote machine would prompt for username and passwor.

      Enter the informations :

      pwd prints the name of current directory in the remote machine.
      ls shows list of files and directories in the remote machine.
      cd dir_name changes to directory dir_name in the remote machine.
      lcd dir_local changes directory to dir_local in the local machine.
      bin changes to binary mode  (preferable for file transfer).
      get remote_file_name local_file_name [ transfers remote_file_name from the remote machine to the file local_file_name in the local machine. (if local file_name is not specified then the remote file name is preserved)]
      mget file1 file2 ... transfers multiple files file1,file2, ... from the remote machine to the current directory in the local machine.
      put local_file_name remote_file_name [ transeferes file local_file_name from local machine and puts it as remore_file_name in remote machine.]
      mput file1 file2 ... transfers file1, file2 ... from the local machine to the current directory of the remote machine. bye ends ftp session.

    7. To Access a Remote Machine:

      Most remote machines, if allowed can be accessed by "telnet" or "ssh" provided your machine is allowed by the remote machine to access using these utilities.

      Please use telnet remote_machine or ssh remore_machine

      Enter login_name and password.
              Enter "exit" to close connection from remote machine.

    8. Access to Internet:

      Enter command "netscape".

      Enter address of the remote site in the Location field.

      To exit clik on the "close" menu.