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¶

!--------------------------------------------------------------------------------
[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:
```
$ ./rascas-serial params_serial.cfg
```

Running the code with MPI with <n_mpi> MPI ranks:

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

Or submit a job on a parallel queue.