-----------------------------------------------------------------------
                   Gar6more2D   V E R S I O N  2.0
----------------------------------------------------------------------- 

Latest update:   Thu Feb. 11  2015


Copyright INRIA. Contributors: Julien DIAZ and Abdelaaziz EZZIANI

Julien.Diaz@inria.fr and Abdelaaziz.Ezziani@univ-pau.fr

This software is a computer program whose purpose is to
compute the analytical solution of problems of waves propagation in two 
layered media in 2D such as
- acoustic/acoustic
- acoustic/elastodynamic
- acoustic/porous
- elastodynamic/elastodynamic
- porous/porous,
based on the Cagniard-de Hoop method.

This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software.  You can  use, 
modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info". 

As a counterpart to the access to the source code and  rights to copy,
modify and redistribute granted by the license, users are provided only
with a limited warranty  and the software's author,  the holder of the
economic rights,  and the successive licensors  have only  limited
liability. 

In this respect, the user's attention is drawn to the risks associated
with loading,  using,  modifying and/or developing or reproducing the
software by the user in light of its specific status of free software,
that may mean  that it is complicated to manipulate,  and  that  also
therefore means  that it is reserved for developers  and  experienced
professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or 
data to be ensured and,  more generally, to use and operate it in the 
same conditions as regards security. 

The fact that you are presently reading this means that you have had
knowledge of the CeCILL license and that you accept its terms.

------------------------------------------------------------------------
                      Gar6more2D   VERSION 2.0 
------------------------------------------------------------------------
1) mkdir build 
2) cd build/ ; ccmake .. ; make all
3) Modify the file Gar6more2D.dat (you may find examples in the directory EXAMPLES)
4) Run ./build/Gar6more2D.out
5) The results are stored in the files Ux.dat, Uy.dat and P.dat.

------------------------------------------------------------------------
                      Short Description of the code
------------------------------------------------------------------------
I) The main program is lib/bin/Gar6more2D.F90.

II) The directory mod/ contains all files for the
declaration of the common variables.

III) The directory lib/libgeneral contains
functions used by most of the subroutines : the
source function source.F90, the computation of the
path in the complex plane path.F90, the
computation of the derivate dp/dt derivee.F90.

IV) The directory includefic contains the interface files.

V) The directory lib/acousacous contains the
subroutines for the computation of the incident
wave (sub_incid_aa.F90), the reflected wave
(sub_reflex_*_aa.F90) and the transmitted wave
(sub_transmit_*_aa.F90) in the acoustic/acoustic
case.

VI) The directory lib/acouselasto contains the
subroutines for the computation of the incident
wave (sub_incid_ae.F90), the reflected wave
(sub_reflex_ae.F90), the transmitted P wave
(sub_transmitp_ae.F90) and the transmitted S wave
(sub_transmits_ae.F90) in the
acoustic/elastodynamic case.

VII) The directory lib/acousporo contains the
subroutines for the computation of the incident
wave (sub_incid_ap.F90), the reflected wave
(sub_reflex_ap.F90), the transmitted fast wave
(sub_transmitf_ap.F90), the transmitted psi wave
(sub_transmitpsi_ap.F90) and the transmitted slow
wave (sub_transmits_ap.F90) in the
acoustic/poroelastic case.
The computation of the reflection and transmission coefficients is performed by calccoeff_ap.F90  

VIII) The directory lib/elastoelasto contains the
subroutines for the computation of the incident
waves (sub_incid*_ee.F90), the reflected waves
(sub_reflex*_*_ee.F90) and the transmitted waves
(sub_transmit*_ee.F90) in the 
elastodynamic/elastodynamic case.
The computation of the reflection and transmission coefficients (for P and S waves) is performed by calccoeff*_ee.F90.

IX) The directory lib/poroporo contains the subroutines for the computation 
of the incident waves (sub_incid_pp_*.F90), the reflected waves 
(sub_reflex*_*_pp.F90) and the transmitted waves (sub_transmit*_*_pp.F90) in the 
poroelastic/poroelastic case.