!!  Copyright (C)  Stichting Deltares, 2012-2013.
!!
!!  This program is free software: you can redistribute it and/or modify
!!  it under the terms of the GNU General Public License version 3,
!!  as published by the Free Software Foundation.
!!
!!  This program 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
!!  GNU General Public License for more details.
!!
!!  You should have received a copy of the GNU General Public License
!!  along with this program. If not, see <http://www.gnu.org/licenses/>.
!!
!!  contact: delft3d.support@deltares.nl
!!  Stichting Deltares
!!  P.O. Box 177
!!  2600 MH Delft, The Netherlands
!!
!!  All indications and logos of, and references to registered trademarks
!!  of Stichting Deltares remain the property of Stichting Deltares. All
!!  rights reserved.


!     COMMON  /  SYSN   /   System characteristics

      integer :: insize   !  the size of this common block

      integer :: noseg    !  number of elements
      integer :: nolay    !  number of layers in the water
      integer :: nseg2    !  number of bottom elements
      integer :: nosys    !  number of active systems
      integer :: notot    !  total number of systems
      integer :: nodisp   !  number of dispersion arrays
      integer :: novelo   !  number of velocity arrays
      integer :: noq1     !  number of exch. 1st direction
      integer :: noq2     !  number of exch. 2nd direction
      integer :: noq3     !  number of exch. 3rd direction
      integer :: noq4     !  number of exch. bottom direction
      integer :: noq      !  number of exchanges
      integer :: nodump   !  number of points monit. outp.
      integer :: nobnd    !  number of boundaries
      integer :: nowst    !  number of waste loads
      integer :: nocons   !  number of constants
      integer :: nopa     !  number of parameters
      integer :: nofun    !  number of functions
      integer :: nosfun   !  number of segment functions
      integer :: nharms   !  total space  of harmonics
      integer :: niharm   !  total number of harmonics
      integer :: nlines   !  cumulative record space
      integer :: npoins   !  cumulative pointer space
      integer :: nolun    !  number of unit numbers
      integer :: nx       !  width of grid
      integer :: ny       !  depth of grid
      integer :: noitem   !  number of items with time-functions
      integer :: jtrack   !  number of codiagonals
      integer :: nipmsa   !  Length IPMSA
      integer :: nproc    !  Number of called processes
      integer :: noloc    !  Number of local vars in the proces subsystem
      integer :: nflux    !  total number of fluxes
      integer :: nodef    !  Number of defaults in proces subsystem
      integer :: noutp    !  Number of files in OUTPUT system
      integer :: nrvart   !  Number of extra output variables
      integer :: nbufmx   !  Length output buffer
      integer :: ifiopk   !  File option kenmerk array
      integer :: ipbloo   !  Number of Bloom module (if >0)
      integer :: ipchar   !  Number of Charon module (if >0)
      integer :: ioffbl   !  Offset in IPMSA for Bloom
      integer :: ioffch   !  Offset in IPMSA for Charon
      integer :: ndspx    !  Number of extra dispersion array's
      integer :: nvelx    !  Number of extra velocity array's
      integer :: nlocx    !  Number of local variables on exch. level
      integer :: ndspn    !  Number of new dispersion array's
      integer :: nveln    !  Number of new velocity array's
      integer :: ndmpar   !  Number of dump area's for balance output
      integer :: ndmpq    !  Number of exchanges of interest for balance
      integer :: ndmps    !  Number of segments of interest for balance
      integer :: ntdmpq   !  Number of times exchanges contribute to balance
      integer :: ntdmps   !  Number of times segments contribute to balance
      integer :: ncbufm   !  Length character array buffer.
      integer :: noraai   !  Number of raaien
      integer :: ntraaq   !  Total number of times exchanges contribute to raai
      integer :: newrsp   !  Integer array size for new time functions
      integer :: newisp   !  Real    array size for new time functions
      integer :: nobtyp   !  Nr of boundary  types
      integer :: nowtyp   !  Nr of wasteload types
      integer :: nomat    !  Size of the fast solvers matrix
      integer :: novec    !  Number of fast solve vectors
      integer :: mmax     !  Number of columns in regular grid
      integer :: nmax     !  Number of rows in regular grid
      integer :: kmax     !  Number of layers in regular grid
      integer :: novar    !  Number of variables
      integer :: noarr    !  Number of array's in workspace
      integer :: nogrid   !  Number of defined grids
      integer :: nufil    !  Number of extra unformatted files
      integer :: npartp   !  number of parts/processors used in the computation
      integer :: mypart   !  part-number of the current computing process
      integer :: nrref    !  Maximum nr of input references for processes
      integer :: nothrd   !  Nr of threads to be used for parallel processing
      integer :: nototp   !  Total number of substances inclusive of particle tracking

      common  /  sysn   / noseg  , nolay  , nseg2  , nosys  , notot  ,         &
                          nodisp , novelo , noq1   , noq2   , noq3   ,         &
                          noq4   , noq    , nodump , nobnd  , nowst  ,         &
                          nocons , nopa   , nofun  , nosfun , nharms ,         &
                          niharm , nlines , npoins , nolun  , nx     ,         &
                          ny     , noitem , jtrack , nipmsa , nproc  ,         &
                          noloc  , nflux  , nodef  , noutp  , nrvart ,         &
                          nbufmx , ifiopk , ipbloo , ipchar , ioffbl ,         &
                          ioffch , ndspx  , nvelx  , nlocx  , ndspn  ,         &
                          nveln  , ndmpar , ndmpq  , ndmps  , ntdmpq ,         &
                          ntdmps , ncbufm , noraai , ntraaq , newrsp ,         &
                          newisp , nobtyp , nowtyp , nomat  , novec  ,         &
                          mmax   , nmax   , kmax   , novar  , noarr  ,         &
                          nogrid , nufil  , npartp , mypart , nrref  ,         &
                          nothrd , nototp

      parameter ( insize  = 72 )