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initialise.f90
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initialise.f90
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!Crown Copyright 2014 AWE.
!
! This file is part of TeaLeaf.
!
! TeaLeaf 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.
!
! TeaLeaf 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
! TeaLeaf. If not, see http://www.gnu.org/licenses/.
!> @brief Top level initialisation routine
!> @author David Beckingsale, Wayne Gaudin
!> @details Checks for the user input and either invokes the input reader or
!> switches to the internal test problem. It processes the input and strips
!> comments before writing a final input file.
!> It then calls the start routine.
SUBROUTINE initialise
USE tea_module
USE parse_module
USE report_module
IMPLICIT NONE
INTEGER :: ios
INTEGER :: get_unit,stat,uin,out_unit
!$ INTEGER :: OMP_GET_THREAD_NUM,OMP_GET_NUM_THREADS
CHARACTER(LEN=g_len_max) :: ltmp
IF(parallel%boss)THEN
g_out=get_unit(dummy)
OPEN(FILE='tea.out',ACTION='WRITE',UNIT=g_out,IOSTAT=ios)
IF(ios.NE.0) CALL report_error('initialise','Error opening tea.out file.')
ELSE
g_out=6
ENDIF
!$OMP PARALLEL
IF(parallel%boss)THEN
!$ IF(OMP_GET_THREAD_NUM().EQ.0) THEN
WRITE(g_out,*)
WRITE(g_out,'(a15,f8.3)') 'Tea Version ',g_version
WRITE(g_out,'(a18)') 'MPI Version'
!$ WRITE(g_out,'(a18)') 'OpenMP Version'
WRITE(g_out,'(a14,i6)') 'Task Count ',parallel%max_task !MPI
!$ WRITE(g_out,'(a15,i5)') 'Thread Count: ',OMP_GET_NUM_THREADS()
WRITE(g_out,*)
WRITE(*,*)'Output file tea.out opened. All output will go there.'
!$ ENDIF
ENDIF
!$OMP END PARALLEL
CALL tea_barrier
IF(parallel%boss)THEN
WRITE(g_out,*) 'Tea will run from the following input:-'
WRITE(g_out,*)
ENDIF
IF(parallel%boss)THEN
uin=get_unit(dummy)
OPEN(FILE='tea.in',ACTION='READ',STATUS='OLD',UNIT=uin,IOSTAT=ios)
IF(ios.NE.0) THEN
out_unit=get_unit(dummy)
OPEN(FILE='tea.in',UNIT=out_unit,STATUS='REPLACE',ACTION='WRITE',IOSTAT=ios)
WRITE(out_unit,'(A)')'*tea'
WRITE(out_unit,'(A)')'state 1 density=100.0 energy=0.0001'
WRITE(out_unit,'(A)')'state 2 density=0.1 energy=25.0 geometry=rectangle xmin=0.0 xmax=1.0 ymin=1.0 ymax=2.0'
WRITE(out_unit,'(A)')'state 3 density=0.1 energy=0.1 geometry=rectangle xmin=1.0 xmax=6.0 ymin=1.0 ymax=2.0'
WRITE(out_unit,'(A)')'state 4 density=0.1 energy=0.1 geometry=rectangle xmin=5.0 xmax=6.0 ymin=1.0 ymax=8.0'
WRITE(out_unit,'(A)')'state 5 density=0.1 energy=0.1 geometry=rectangle xmin=5.0 xmax=10.0 ymin=7.0 ymax=8.0'
WRITE(out_unit,'(A)')'x_cells=10'
WRITE(out_unit,'(A)')'y_cells=10'
WRITE(out_unit,'(A)')'xmin=0.0'
WRITE(out_unit,'(A)')'ymin=0.0'
WRITE(out_unit,'(A)')'xmax=10.0'
WRITE(out_unit,'(A)')'ymax=10.0'
WRITE(out_unit,'(A)')'initial_timestep=0.004'
WRITE(out_unit,'(A)')'end_step=10'
WRITE(out_unit,'(A)')'tl_max_iters=1000'
WRITE(out_unit,'(A)')' test_problem 1'
WRITE(out_unit,'(A)')'use_trilinos'
WRITE(out_unit,'(A)')'tl_eps=1.0e-15'
WRITE(out_unit,'(A)')'*endtea'
CLOSE(out_unit)
uin=get_unit(dummy)
OPEN(FILE='tea.in',ACTION='READ',STATUS='OLD',UNIT=uin,IOSTAT=ios)
ENDIF
IF(ios.NE.0) CALL report_error('initialise','Error opening tea.in')
out_unit=get_unit(dummy)
OPEN(FILE='tea.in.tmp',UNIT=out_unit,STATUS='REPLACE',ACTION='WRITE',IOSTAT=ios)
IF(ios.NE.0) CALL report_error('initialise','Error opening tea.in.tmp file')
stat=parse_init(uin,'')
DO
stat=parse_getline(-1_4)
IF(stat.NE.0)EXIT
WRITE(out_unit,'(A)') line
ENDDO
CLOSE(out_unit)
ENDIF
CALL tea_barrier
g_in=get_unit(dummy)
OPEN(FILE='tea.in.tmp',ACTION='READ',STATUS='OLD',UNIT=g_in,IOSTAT=ios)
IF(ios.NE.0) CALL report_error('initialise','Error opening tea.in.tmp file')
CALL tea_barrier
IF(parallel%boss)THEN
REWIND(uin)
DO
READ(UNIT=uin,IOSTAT=ios,FMT='(a100)') ltmp ! Read in next line.
IF(ios.NE.0)EXIT
WRITE(g_out,FMT='(a100)') ltmp
ENDDO
ENDIF
IF(parallel%boss)THEN
WRITE(g_out,*)
WRITE(g_out,*) 'Initialising and generating'
WRITE(g_out,*)
ENDIF
CALL read_input()
CALL tea_barrier
step=0
CALL start
CALL tea_barrier
IF(parallel%boss)THEN
WRITE(g_out,*) 'Starting the calculation'
ENDIF
CLOSE(g_in)
END SUBROUTINE initialise
FUNCTION get_unit(dummy)
INTEGER :: get_unit,dummy
INTEGER :: u
LOGICAL :: used
DO u=7,99
INQUIRE(UNIT=u,OPENED=used)
IF(.NOT.used)THEN
EXIT
ENDIF
ENDDO
get_unit=u
END FUNCTION get_unit