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gyacomo/src/control.F90
03d92523cdb53D_parallel

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control.F90
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SUBROUTINE control
! Control the run
use basic
use prec_const
IMPLICIT NONE
CALL cpu_time(start)
!________________________________________________________________________________
! 1. Prologue
! 1.1 Initialize the parallel environment
CALL ppinit
IF (my_id .EQ. 0) WRITE(*,'(a/)') 'MPI initialized'
CALL daytim('Start at ')
! 1.2 Define data specific to run
IF (my_id .EQ. 0) WRITE(*,*) 'Load basic data...'
CALL basic_data
! CALL mpi_barrier(MPI_COMM_WORLD, ierr)
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...basic data loaded.'
! 1.3 Read input parameters from input file
IF (my_id .EQ. 0) WRITE(*,*) 'Read input parameters...'
CALL readinputs
! CALL mpi_barrier(MPI_COMM_WORLD, ierr)
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...input parameters read'
! 1.4 Set auxiliary values (allocate arrays, set grid, ...)
IF (my_id .EQ. 0) WRITE(*,*) 'Calculate auxval...'
CALL auxval
! CALL mpi_barrier(MPI_COMM_WORLD, ierr)
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...auxval calculated'
! 1.5 Initial conditions
IF (my_id .EQ. 0) WRITE(*,*) 'Create initial state...'
CALL inital
! CALL mpi_barrier(MPI_COMM_WORLD, ierr)
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...initial state created'
! 1.6 Initial diagnostics
IF (my_id .EQ. 0) WRITE(*,*) 'Initial diagnostics...'
CALL diagnose(0)
! CALL mpi_barrier(MPI_COMM_WORLD, ierr)
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...initial diagnostics done'
CALL FLUSH(stdout)
CALL mpi_barrier(MPI_COMM_WORLD, ierr)
!________________________________________________________________________________
IF (my_id .EQ. 0) WRITE(*,*) 'Time integration loop..'
!________________________________________________________________________________
! 2. Main loop
DO
CALL cpu_time(t0_step) ! Measuring time
step = step + 1
cstep = cstep + 1
CALL stepon
time = time + dt
CALL tesend
IF( nlend ) EXIT ! exit do loop
CALL diagnose(step)
CALL cpu_time(t1_step); tc_step = tc_step + (t1_step - t0_step)
END DO
IF (my_id .EQ. 0) WRITE(*,'(a/)') '...time integration done'
!________________________________________________________________________________
! 9. Epilogue
CALL diagnose(-1)
CALL endrun
IF (my_id .EQ. 0) CALL daytim('Done at ')
CALL ppexit
END SUBROUTINE control
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