Although still very popular, these systems do not scale up to the challenges offered by the LHC, where the amount of data to be simulated and analyzed is a few orders of magnitude larger than anything seen before. It became time to re-think our approach to large scale data analysis and simulation and at the same time we had to profit from the progress made in computer science over the past 15 to 20 years. Especially in the area of Object-Oriented design and development.
Thus was born ROOT. NA49 generates an impressive amount of data, about 10 Terabytes of raw data per run. This data rate is of the same order of magnitude as the rates expected to be recorded by the LHC experiments. Therefore, NA49 is an ideal environment to develop and test the next generation data analysis tools and to study the problems related to the organization and analysis of such large amounts of data.
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Print Export pages.You can fetch and update AliEn installation using alien-installer as described below, or. Pre-build AliEn distribution is available for the following OS. Default AliEn installation will install the User version that contains the shell client and the libraries needed by the users to connect and work with AliEn middleware. The user version is compiled on the user machine, it does not download prebuild packages.
The precompiled version is still available but it is NOT the default version. In order to install the precompiled version run. The following packages needs to be installed in order to compile user distribution.
Prerequisites for building ROOT from source.
Launch the installer as demonstrated below. There will be a 10 second pause before the installation will commence. During which time ensure that the platform and the installation directory are correctly detected.
I f you do not interrupt, the installer will automatically detect your environment, get the latest version of AliEn and finally. If you already have installed the latest version of AliEn the installer will do nothing, just inform that AliEn is up to date. No installation is necessary Installation cancelled. If the installation is a fresh one or AliEn version is not up to date the installer will start to download and compile the user packages needed by AliEn. If you wish to install in a specific directory do:.
Done Installation finished! By default, you will find a version tagged alien folder together with a link called alien in your home folder:. To install AliEn in a specific directory call the installer with a parameter -install-dir followed by your desired installation folder:. Your specified folder name will be used as a prefix for a version tagged folder name and a coresponding link.
The installer will automatically detect the. If you decide to install AliEn in the directory that already has an AliEn installation, the installer will adapt the new installation location in order to avoid any naming conflicts with older distributions.
This eliminates conflicts between the new and old distribution. In case that you don't have a Grid certificate please follow these instructions about how to obtain one. Note: Please make sure the permissions for userkey. To change permissions, use the following command :. If you don't have a bin directory in your home directory, the installer will automatically create it.
Therefore you. The procedure below applies for the compiled version of AliEn.
In case that you installed the precompiled version of AliEn follow the second row of instructions. The complete list of configuration parameters needed to be set in order to compile ROOT with AliEn support can be found below.
Warning : Before doing make, please ensure that during ROOT configuration, alien and xrootd have been located and are listed at the end of the configuration step in the Enabled support for section also found in config.
An automated script was developted in order to ease ROOT configuration. Please dowload the script into ROOT source directory, make it executable and run it. Root configure parameters for precompiled AliEn version.Also note that the below works fine but you need to be very careful about which directory you run the commands in — just follow the instructions! See updates below. If you are reading this, probably it was you.
Sometimes it is me, but more than likely it was you. See below. These instructions are, in principle, specific to Ubuntu Using git makes it much easier to change ROOT version should you need to. Cloning the repository will take a little. Make a cup of tea. Pontificate on the meaning of life. Write a sonnet. Make another cup of tea. Write a blog post on how to install ROOT.
The folder root-git contains the git tree. To install different versions, first, in the root-git directory checkout, the desired version from the git repository. Each version is then built in a different directory. In your root directory, create an appropriate directory:.CERN ROOT tutorial for beginners -- topic: customized color and contour setting
If you see errors relating to CMakeCache. If you delete the wrong file, just use:. It will still take a long time. This worked without any problems for ROOT version v and v To actually use ROOT, you need to put the appropriate script in your path. Do this by putting the following in your. So there you go. ROOT is installed. We'll assume you're ok with this, but you can opt-out if you wish. First, install the required prerequisites. If you delete the wrong file, just use: git checkout -f to get it back.
Next, in the build directory root-v just run cmake —build.
Installing CERN's ROOT framework
Thankfully aptitude, the package manager bundled with Ubuntu, will help you download all the packages you need and a few that you may not, but add extra functionality. Choose libxdev and install.
If the package you need is missing, try googling around for the package name to find the equivalent, hopefully the build-dep command will provide you with all you need.
By the way if you have any special configuration requirements such as Pythia interface or Python support make sure that the relevant libraries are present.
Now we need to set a couple of environmental variables.W e thank you for your understanding. Taking part in the largest scientific experiment in the world. Here are 6 key reasons we believe will make you love working here. CERN is an employer, a university and a state: a whole community working towards a shared goal — scientific discovery.
This is work without boundaries. People here are realising the impossible. People here enjoy living a truly cosmopolitan life, in the heart of Europe. Employing a diverse workforce is central to our success.
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Want to know more? Read our blog and find out.This service provides hosting infrastructure for building official web sites and web applications based on content management system CMS and Content Management framework CMF called Drupal. For direct file manipulation, the client computer must support WebDav. Drupal Service This service provides hosting infrastructure for building official web sites and web applications based on content management system CMS and Content Management framework CMF called Drupal.
Problems with the infrastructure can be reported via the service desk. Supported Clients For users, access to Drupal sites is avaialble through one of Firefox 3. User Responsibilities For the content manager i. If these local modules become centrally managed, the site owner should arrange to migrate to the centrally managed version. Handbooks Drupal Infrastructure Services. How To Getting started. Using ckeditor.
Use e-group as a role in Drupal. Removing duplicated locally installed modules. Viewing site utilisation. Accessing the Drupal database.Organized in modules of 30 and 60 minutes with introduction of concepts supported by slides followed by practical exercises.
The following modules will part of the Basic course:. Acquire more advanced knowledge and experience in using the ROOT data analysis framework and statistical and multi-variate analysis tools deivered with the ROOT package. The following modules will part of the Advanced Analysis course:.
Acquire more advanced knowledge and experience in using the ROOT to build large data processing applications and data analysis and visualization frameworks. The following modules will part of the Advanced Development course:. Blog Workshops. Collaborate with Us. You are here Home. Language English Duration of the course or tutorial 2 days 16 hours Price To be discussed Contact names Pere Mato, Danilo Piparo Synopsis Organized in modules of 30 and 60 minutes with introduction of concepts supported by slides followed by practical exercises.
Language English Duration of the course or tutorial 1 days 8 hours Price To be discussed Contact names Pere Mato, Lorenzo Moneta Synopsis Organized in modules of 30 and 60 minutes with introduction of concepts supported by slides followed by practical exercises.
Language English Duration of the course or tutorial 1 days 8 hours Price To be discussed Contact names Pere Mato, Danilo Piparo Synopsis Organized in modules of 30 and 60 minutes with introduction of concepts supported by slides followed by practical exercises.