.. _secRunRT:


Running RASCAS
##############

This code propagates photons defined in **step 2** into the mesh
defined in **step 1**. It has a number of runtime input parameters of its own. 


Input parameters
================


.. code-block:: fortran

	!--------------------------------------------------------------------------------
	[RASCAS]
	DomDumpDir   = directory_where_domain_and_mesh_files_are
	PhotonICFile = path_to_the_photonsIC_file
	fileout      = path_to_the_photons_results_file
	nbundle      = 10
	verbose      = T
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[worker]
	verbose = T
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[master]
	verbose = T
	restart       = F
	PhotonBakFile = path_to_the_photons_backup_file
	dt_backup     = time_in_seconds_between_2_backups
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[gas_composition] 
	# mixture parameters
	deut2H_nb_ratio     = 3.000E-05
	f_ion               = 0.01
	Zref                = 0.005   ! OK for LMC dust model.
	# overwrite parameters
	gas_overwrite       = F
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[HI]
	recoil    = T
	isotropic = F
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[Deuterium]
	recoil    = T
	isotropic = F
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[dust]
	albedo       = 0.32
	g_dust       = 0.73
	dust_model   = SMC
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[uparallel]
	method        = RASCAS
	xForGaussian  = 8.
	!--------------------------------------------------------------------------------
	
	!--------------------------------------------------------------------------------
	[voigt]
	approximation = COLT
	!--------------------------------------------------------------------------------


Then again, compile with ``make rascas``. 

* Running a serial version of the code:

  .. code-block:: bash

     $ ./rascas-serial params_serial.cfg

* Running the code with MPI with ``<n_mpi>`` MPI ranks:
  
  .. code-block:: bash

     $ mpiexec -n <n_mpi> ./rascas params_rascas.cfg

Or submit a job on a parallel queue. 

.. This example might then be easily adapted to your desired configuration.


.. toctree::
..   :hidden:
..   :maxdepth: 1
..
..   gridNamelist.rst
..   controlNamelist.rst
..   physNamelist.rst
..   BextNamelist.rst
..   startNamelist.rst
..   outNamelist.rst
..   mantle_icNamelist.rst