!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer, 
!                     version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms 
!of the Environment Canada - Atmospheric Science and Technology License/Disclaimer 
!version 3 or (at your option) any later version that should be found at: 
!http://collaboration.cmc.ec.gc.ca/science/rpn.comm/license.html 
!
!This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
!without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
!See the above mentioned License/Disclaimer for more details.
!You should have received a copy of the License/Disclaimer along with this software; 
!if not, you can write to: EC-RPN COMM Group, 2121 TransCanada, suite 500, Dorval (Quebec), 
!CANADA, H9P 1J3; or send e-mail to service.rpn@ec.gc.ca
!-------------------------------------- LICENCE END --------------------------------------
***s/r pre_tr - Equivalent to pre for TRAJECTORY   
*
#include "model_macros_f.h"
*

      subroutine pre_tr 1,1
*
      implicit none
*
*author
*     M.Tanguay
*
*revision
* v2_10 - Tanguay M.        - initial MPI version
* v2_21 - Tanguay M.        - reduce standard output as in model 
* v2_31 - Tanguay M.        - adapt ADJ for new advection code 
* v3_03 - Tanguay M.        - Adjoint NoHyd configuration 
* v3_11 - Tanguay M.        - AIXport+Opti+OpenMP for TLM-ADJ
*
*object
*     see id section
*
*arguments
*     none
*
*implicits
#include "glb_ld.cdk"
#include "lun.cdk"
#include "rhscm.cdk"
#include "vt1m.cdk"
#include "p_geof.cdk"
#include "schm.cdk"
*
*modules
      integer  vmmlod, vmmget, vmmuld
      external vmmlod, vmmget, vmmuld
*
      integer pnerr, pnlod, pnlkey1(19), i, j 
*
      real wijk1 (LDIST_SHAPE,l_nk),wijk2 (LDIST_SHAPE,l_nk)
*     ______________________________________________________
*
*
      if (Lun_debug_L) write (Lun_out,1000)
*
      pnlkey1(1)  = VMM_KEY(rum)
      pnlkey1(2)  = VMM_KEY(rvm)
      pnlkey1(3)  = VMM_KEY(ruw1m)
      pnlkey1(4)  = VMM_KEY(ruw2m)
      pnlkey1(5)  = VMM_KEY(rvw1m)
      pnlkey1(6)  = VMM_KEY(rvw2m)
      pnlkey1(7)  = VMM_KEY(xct1m)
      pnlkey1(8)  = VMM_KEY(yct1m)
      pnlkey1(9)  = VMM_KEY(zct1m)
      pnlkey1(10) = VMM_KEY(topo)
      pnlkey1(11) = VMM_KEY(rdm)
      pnlkey1(12) = VMM_KEY(rcnm)
      pnlkey1(13) = VMM_KEY(r1m)
      pnlkey1(14) = VMM_KEY(rthm)
      pnlkey1(15) = VMM_KEY(rhellm)
      pnlod = 15
      if (.not. Schm_hydro_L) then
         pnlkey1(16) = VMM_KEY(rwm)
         pnlkey1(17) = VMM_KEY(rvvm)
         pnlkey1(18) = VMM_KEY(r3m)
         pnlkey1(19) = VMM_KEY(r3pm)
         pnlod = 19
      endif
*     - - - - - - - - - - - - - - -
      pnerr = vmmlod(pnlkey1,pnlod)
*     - - - - - - - - - - - - - - -
      pnerr = VMM_GET_VAR(rum)
      pnerr = VMM_GET_VAR(rvm)
      pnerr = VMM_GET_VAR(ruw1m)
      pnerr = VMM_GET_VAR(ruw2m)
      pnerr = VMM_GET_VAR(rvw1m)
      pnerr = VMM_GET_VAR(rvw2m)
      pnerr = VMM_GET_VAR(xct1m)
      pnerr = VMM_GET_VAR(yct1m)
      pnerr = VMM_GET_VAR(zct1m)
      pnerr = VMM_GET_VAR(topo)
      pnerr = VMM_GET_VAR(rdm)
      pnerr = VMM_GET_VAR(rcnm)
      pnerr = VMM_GET_VAR(r1m)
      pnerr = VMM_GET_VAR(rthm)
      pnerr = VMM_GET_VAR(rhellm)
      if (.not. Schm_hydro_L) then
         pnerr = VMM_GET_VAR(rwm)
         pnerr = VMM_GET_VAR(rvvm)
         pnerr = VMM_GET_VAR(r3m)
         pnerr = VMM_GET_VAR(r3pm)
      else
         rwm_  = 0
         rvvm_ = 0
         r3m_  = 0
         r3pm_ = 0
      endif
*
      call prep_2 ( rum,  rvm, ruw1m, ruw2m, rvw1m, rvw2m, xct1m, yct1m,  zct1m, topo, 
     %              rdm, rcnm,   r1m,  rthm,   rwm,  rvvm,   r3m,  r3pm, rhellm,
     %              wijk1,wijk2,LDIST_DIM,l_ni,l_nj,l_nk )
*
      pnerr = vmmuld(-1,0)
*
1000  format(3X,'TRAJ of PRE-COMPUTATION FOR THE HELMHOLTZ PROBLEM: (S/R PRE_TR)',/)

      return
      end