!> @file local_tremain.f90
!------------------------------------------------------------------------------!
! This file is part of the PALM model system.
!
! PALM 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.
!
! PALM 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
! PALM. If not, see <http://www.gnu.org/licenses/>.
!
! Copyright 1997-2019 Leibniz Universitaet Hannover
!------------------------------------------------------------------------------!
!
! Current revisions:
! -----------------
! 
! 
! Former revisions:
! -----------------
! $Id: local_tremain.f90 4182 2019-08-22 15:20:23Z maronga $
! Corrected "Former revisions" section
! 
! 3655 2019-01-07 16:51:22Z knoop
! Corrected "Former revisions" section
!
! Revision 1.1  1998/03/18 20:14:47  raasch
! Initial revision
!
!
! Description:
! ------------
!> For different operating systems get the remaining cpu-time of the job
!------------------------------------------------------------------------------!
 SUBROUTINE local_tremain( remaining_time )
 

    USE control_parameters,                                                    &
        ONLY:  maximum_cpu_time_allowed

    USE cpulog,                                                                &
        ONLY:  initial_wallclock_time

    USE kinds

    USE pegrid

    IMPLICIT NONE

    INTEGER(idp) ::  count                 !<
    INTEGER(idp) ::  count_rate            !<

    REAL(wp)     ::  actual_wallclock_time !<
    REAL(wp)     ::  remaining_time        !<

    CALL SYSTEM_CLOCK( count, count_rate )
    actual_wallclock_time = REAL( count, KIND=wp ) / REAL( count_rate, KIND=wp )
    remaining_time = maximum_cpu_time_allowed - &
                     ( actual_wallclock_time - initial_wallclock_time )

 END SUBROUTINE local_tremain