== Introduction ==
WRF for GRID (WRF4G) is a framework for executing and monitoring the WRF Modeling System (see [http://www.meteo.unican.es/work/2012_Garcia-Diez_VALUE_WRF.pdf this presentation] for an introduction to WRF) in different DCIs. It provides a flexible and easy way of designing complex experiments involving many simulations (multiple start/end dates, multi-parametric simulations, long climate runs, ...). The monitor allows a precise control of the experiment's state, where broken simulations are automatically detected and relaunched at the next submission. 

Given a list of DCIs that the user can access, WRF4G submits the experiment to them according to the experiment needs. Users can configure different DCIs such as local PCs, stand-alone servers, clusters, grid resources, etc. The output files are going to be stored depending on the DCIs used to run the simulations.

WRF4G separates the experiment design from the execution environment. To prepare a experiment, users are required to fill in two files: [wiki:WRF4Gexperiment_wrf4g experiment.wrf4g] which defines the WRF experiment, and [wiki:WRF4Gresources_wrf4g resources.wrf4g], where running environment and storage resources are configured. WRF4G provides a [wiki:WRF4GCommandLineInterface command line interface] that allow the users to prepare, run and monitor their experiments.

The following picture shows the main WRF4G components (see the following [http://www.meteo.unican.es/work/WRF4G_Presentation.pdf presentation] for further information) and the interaction among them.

[[Image(wrf4g_workflow_ani.gif,50%)]]
 
== Documentation ==
 * [wiki:WRF4GFrameworkConfiguration Framework]
 * [wiki:WRF4GInstall Installation Guide]
 * Tutorials: 
  * [wiki:WRF4GTutorial How to run a simple experiment] 
  * [wiki:WRF4GTutorial2 Advanced tutorial]
   * [wiki:WRF4GTutorial2#HowtomanageWRF4Gerrors How to manage WRF4G errors] 
   * [wiki:WRF4GTutorial2#HowtoaddnewcomputingresourcestoWRF4G How to add new computing resources to WRF4G]
   * [wiki:WRF4GTutorial2#HowtoaddanewWRFgeographicaldomain How to add a new WRF geographical domain]
   * [wiki:WRF4GTutorial2#Howtoreconfigurethefeaturesofanexperiment How to reconfigure the features of an experiment]
   * [wiki:WRF4GTutorial2#Howtoresubmitanexperiment How to resubmit an experiment]
   * [wiki:WRF4GTutorial2#Howtorerunaspecificchunkofarealization How to rerun a specific chunk of a realization]
   * [wiki:WRF4GTutorial2#Howtousewrf4g_killcommand How to use wrf4g_kill command]
  * [wiki:WRF4GWRFReforecast Reforecast Tutorial]
 * [wiki:WRF4GCommandLineInterface Command Line Interface]
 * [wiki:WRF4GWRFDistributions WRF Distributions]
 * Configuration files:
   * Resources setup 
    * [wiki:WRF4Gframework4g_conf framework4g.conf]
   * Experiment setup 
    * [wiki:WRF4Gexperiment_wrf4g experiment.wrf4g]
    * [wiki:WRF4Gresources_wrf4g resources.wrf4g]
 * [wiki:WRF4GFAQ FAQ]

== Problems ==
If you have any problems, please [https://www.meteo.unican.es/trac/meteo/newticket?component=WRF4G&owner=carlos&cc=antonio send us a ticket!!]