Driver_computeDt.F90

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!! NOTICE
!!  Copyright 2022 UChicago Argonne, LLC and contributors
!!
!!  Licensed under the Apache License, Version 2.0 (the "License");
!!  you may not use this file except in compliance with the License.
!!
!!  Unless required by applicable law or agreed to in writing, software
!!  distributed under the License is distributed on an "AS IS" BASIS,
!!  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
!!  See the License for the specific language governing permissions and
!!  limitations under the License.
!!
 
 
!! NOTES
!!
!! The Driver unit uses a few unit scope variables that are
!! accessible to all routines within the unit, but not to the
!! routines outside the unit. These variables begin with "dr_"
!! like, dr_globalMe or dr_dt, dr_beginStep, and are stored in FORTRAN
!! module Driver_data (in file Driver_data.F90). The other variables
!! are local to the specific routine and do not have the prefix "dr_"
 
 
#ifdef DEBUG_ALL
#define DEBUG_DRIVER
#endif
 
subroutine Driver_computeDt(nbegin, nstep, &
                    simTime, dtOld, dtNew)
 
 
  implicit none
 
 
  integer, intent(IN) :: nbegin, nstep
  real,    intent(IN) :: simTime    !! current simulation time
  real, intent(IN) :: dtOld      !! last time step we used
  real, intent(OUT):: dtNew      !! the new timestep we get. to be returned.
 
 
  !dummy values for stubs
 
  dtNew = 0.0
 
  return
end subroutine Driver_computeDt