SwanInitCompGrid.ftn90

subroutine SwanInitCompGrid ( logcom )
!
!   --|-----------------------------------------------------------|--
!     | Delft University of Technology                            |
!     | Faculty of Civil Engineering and Geosciences              |
!     | Environmental Fluid Mechanics Section                     |
!     | P.O. Box 5048, 2600 GA  Delft, The Netherlands            |
!     |                                                           |
!     | Programmer: Marcel Zijlema                                |
!   --|-----------------------------------------------------------|--
!
!
!     SWAN (Simulating WAves Nearshore); a third generation wave model
!     Copyright (C) 1993-2024  Delft University of Technology
!
!     This program is free software: you can redistribute it and/or modify
!     it under the terms of the GNU General Public License as published by
!     the Free Software Foundation, either version 3 of the License, or
!     (at your option) any later version.
!
!     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/>.
!
!
!   Authors
!
!   40.80: Marcel Zijlema
!
!   Updates
!
!   40.80, July 2007: New subroutine
!
!   Purpose
!
!   Initialise arrays for description of computational grid
!   in case of unstructured grid
!
!   Modules used
!
    use ocpcomm4
    use swcomm3
    use m_genarr
    use m_parall
    use SwanGriddata
!
    implicit none
!
!   Argument variables
!
    logical, dimension(7), intent(inout) :: logcom ! give status of which command has been given
!
!   Local variables
!
    integer, save :: ient = 0 ! number of entries in this subroutine
    integer       :: istat    ! indicate status of allocation
!
!   Structure
!
!   Description of the pseudo code
!
!   Source text
!
    if (ltrace) call strace (ient,'SwanInitCompGrid')
    !
    ! check the grid
    !
    call SwanCheckGrid
    !
    istat = 0
    if(.not.allocated(ac2)) allocate(ac2(MDC,MSC,nverts), stat = istat)
    if ( istat /= 0 ) then
       call msgerr ( 4, 'Allocation problem in SwanInitCompGrid: array ac2 ' )
       return
    endif
    ac2 = 0.
    logcom(6) = .true.
    !
    ! set number of vertices and cells in global domain in case of serial run
    !
    if ( .not.logcom(7) ) then
       nvertsg = nverts
       ncellsg = ncells
    endif
    !
    ! the following arrays for structured grids (regular and curvilinear)
    ! are allocated as empty ones
    !
    if ( .not.allocated(KGRPNT) ) allocate(KGRPNT(0,0))
    if ( .not.allocated(KGRBND) ) allocate(KGRBND(0)  )
    !
    ! for sake of convenience, set MCGRD to nverts (for allocating AC1 and COMPDA)
    !
    MCGRD   = nverts
    MCGRDGL = nvertsg
    MXCGL   = nvertsg
    MYCGL   = 1
    !
end subroutine SwanInitCompGrid