Cernlib Manual Installation

If you are using Unix/Linux based operating system and having difficulties for installing CERNLIB, the best way is to try the simplest way: manual installation.

1- ) Go to and click “compressed tar files” link which is proper with your system.

2-) cd / (open your root folder)

3-) mkdir cern

4-) copy 3 tar files that you’ve already downloaded (cernlib.tar.gz, cernbin.tar.gz, include.tar.gz)  into cern folder you created.

5-) Go into your Cern folder you’ve already created and write the command:
tar -xvf cernlib.tar
tar -xvf cernbin.tar
tar -xvf include.tar
6-) Create symbolic links in this folder:
ln -s 2006 pro
ln -s 2006 new
(If you don’t have a folder 2006, change it with the name you have exp: 2004,2005,2007…etc)

7-) Now you should set some system variables: write “export” on the command line to see all fixed system variables and their values which has been declared in the past.

8 ) You must change the variables related to CERN. So either write following commands on the command line or add them into your /etc/bashrc file (for unix). If you add them into your /etc/baschrc file, you won’t need to set these variables everytime you open your computer.

export CERN=<Your Cern Directory>
export CERN_ROOT=<Your Cern Directory>
export CERNLIB=$CERN/pro/lib
export CERNBIN=$CERN/pro/bin

IMPORTANT: Please check your environmental variables by writing “export” in your command line. If you installed Cernlib by Fink or apt-get before, you may not get correct CERN_ROOT, CERNLIB or CERNBIN variables. In this case, open corresponding bashrc/profile files and edit your CERN variables. For fink, edit cernlib… csh, sh files under /sw/etc/profile.d folder.


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About Kuday

Pure Mind

8 responses to “Cernlib Manual Installation”

  1. Mac says :

    Thanks! Appreciate it!

  2. Hungover Guy says :

    As much as I can understand right now, I think you’re right!

  3. Justine says :

    I am searching about how to makefile of the ATLFast on my mac, and i found your blog. Can you teach me which makefile is for the mac system?
    Thanks a lot!

  4. Kuday says :

    You mean you’r searching for ATLFast++ macosx makefile ??
    Because if you’d like to run ATLFast standalone, you should install components of ATLAS framework to your computer and no question about it.
    But i recently observed that there is no macosx makefile for ATLFast++ which is the ATLAS fast MonteCarlo simulation program based on ROOT.

  5. Justine says :

    Thanks a lot!
    Can you teach me about how to install ATLFast or where to download it?
    I just can find the download file for root (ATLFast++).

  6. Kuday says :

    Let me clear a few things:
    ATLFast++ and ATLFast are two different applications. I mean you don’t need one of them to run one other…etc. ATLFast++ seemed to me a little old and not practical at all. But you can install it by following steps in this page:

    Note that there is no macosx makefile for ATLFast++; so you need to edit linux version of it.

    For full simulation chain, you can use ATLFast but you should install Athena framework to run it properly. I strictly recommend not to use it on your own computer since you may have huge simulation outputs. Try to register Cern-Grid or any other Grids that you can run high-energy-physics applications.

  7. Justine says :

    Thanks a lot!!
    I got it!

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  1. Installing Scientific Packages on Mac OS X « Kuday WeBlog - October 13, 2010

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