MODULE stpctl !!====================================================================== !! *** MODULE stpctl *** !! Ocean run control : gross check of the ocean time stepping !!====================================================================== !! History : OPA ! 1991-03 (G. Madec) Original code !! 6.0 ! 1992-06 (M. Imbard) !! 8.0 ! 1997-06 (A.M. Treguier) !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module !! 2.0 ! 2009-07 (G. Madec) Add statistic for time-spliting !! 3.7 ! 2016-09 (G. Madec) Remove solver !! 4.0 ! 2017-04 (G. Madec) regroup global communications !!---------------------------------------------------------------------- !!---------------------------------------------------------------------- !! stp_ctl : Control the run !!---------------------------------------------------------------------- USE oce ! ocean dynamics and tracers variables USE dom_oce ! ocean space and time domain variables USE c1d ! 1D vertical configuration USE diawri ! Standard run outputs (dia_wri_state routine) ! USE in_out_manager ! I/O manager USE lbclnk ! ocean lateral boundary conditions (or mpp link) USE lib_mpp ! distributed memory computing USE zdf_oce , ONLY : ln_zad_Aimp ! ocean vertical physics variables USE wet_dry, ONLY : ll_wd, ssh_ref ! reference depth for negative bathy USE netcdf ! NetCDF library IMPLICIT NONE PRIVATE PUBLIC stp_ctl ! routine called by step.F90 INTEGER :: idrun, idtime, idssh, idu, ids1, ids2, idt1, idt2, idc1, idw1, istatus LOGICAL :: lsomeoce !!stoops # include "domzgr_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/OCE 4.0 , NEMO Consortium (2018) !! $Id: stpctl.F90 12614 2020-03-26 14:59:52Z gm $ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE stp_ctl( kt, Kbb, Kmm, kindic ) !!---------------------------------------------------------------------- !! *** ROUTINE stp_ctl *** !! !! ** Purpose : Control the run !! !! ** Method : - Save the time step in numstp !! - Print it each 50 time steps !! - Stop the run IF problem encountered by setting indic=-3 !! Problems checked: |ssh| maximum larger than 10 m !! |U| maximum larger than 10 m/s !! negative sea surface salinity !! !! ** Actions : "time.step" file = last ocean time-step !! "run.stat" file = run statistics !! nstop indicator sheared among all local domain (lk_mpp=T) !!---------------------------------------------------------------------- INTEGER, INTENT(in ) :: kt ! ocean time-step index INTEGER, INTENT(in ) :: Kbb, Kmm ! ocean time level index INTEGER, INTENT(inout) :: kindic ! error indicator !! INTEGER :: ji, jj, jk ! dummy loop indices INTEGER, DIMENSION(2) :: ih ! min/max loc indices INTEGER, DIMENSION(3) :: iu, is1, is2 ! min/max loc indices REAL(wp) :: zzz ! local real REAL(wp), DIMENSION(3) :: zmax LOGICAL :: ll_wrtstp, ll_colruns, ll_wrtruns CHARACTER(len=20) :: clname !!---------------------------------------------------------------------- ! ll_wrtstp = ( MOD( kt, sn_cfctl%ptimincr ) == 0 ) .OR. ( kt == nitend ) ll_colruns = ll_wrtstp .AND. ( sn_cfctl%l_runstat ) ll_wrtruns = ll_colruns .AND. lwm IF( kt == nit000 .AND. lwp ) THEN WRITE(numout,*) WRITE(numout,*) 'stp_ctl : time-stepping control' WRITE(numout,*) '~~~~~~~' ! ! open time.step file IF( lwm ) CALL ctl_opn( numstp, 'time.step', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) ! ! open run.stat file(s) at start whatever ! ! the value of sn_cfctl%ptimincr IF( lwm .AND. ( sn_cfctl%l_runstat ) ) THEN CALL ctl_opn( numrun, 'run.stat', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) clname = 'run.stat.nc' IF( .NOT. Agrif_Root() ) clname = TRIM(Agrif_CFixed())//"_"//TRIM(clname) istatus = NF90_CREATE( TRIM(clname), NF90_CLOBBER, idrun ) istatus = NF90_DEF_DIM( idrun, 'time', NF90_UNLIMITED, idtime ) istatus = NF90_DEF_VAR( idrun, 'abs_ssh_max', NF90_DOUBLE, (/ idtime /), idssh ) istatus = NF90_DEF_VAR( idrun, 'abs_u_max', NF90_DOUBLE, (/ idtime /), idu ) istatus = NF90_ENDDEF(idrun) ENDIF ENDIF IF( kt == nit000 ) lsomeoce = COUNT( ssmask(:,:) == 1._wp ) > 0 ! IF(lwm .AND. ll_wrtstp) THEN !== current time step ==! ("time.step" file) WRITE ( numstp, '(1x, i8)' ) kt REWIND( numstp ) ENDIF ! ! !== test of extrema ==! IF( ll_wd ) THEN zmax(1) = MAXVAL( ABS( ssh(:,:,Kmm) + ssh_ref*tmask(:,:,1) ) ) ! ssh max ELSE zmax(1) = MINVAL( e3t(:,:,1,Kmm) ) ! ssh min ENDIF zmax(2) = MAXVAL( ABS( uu(:,:,:,Kmm) ) ) ! velocity max (zonal only) zmax(3) = REAL( nstop , wp ) ! stop indicator ! IF( ll_colruns ) THEN CALL mpp_max( "stpctl", zmax ) ! max over the global domain nstop = NINT( zmax(3) ) ! nstop indicator sheared among all local domains ENDIF ! !== run statistics ==! ("run.stat" files) IF( ll_wrtruns ) THEN WRITE(numrun,9500) kt, zmax(1), zmax(2) istatus = NF90_PUT_VAR( idrun, idssh, (/ zmax(1)/), (/kt/), (/1/) ) istatus = NF90_PUT_VAR( idrun, idu, (/ zmax(2)/), (/kt/), (/1/) ) IF( MOD( kt , 100 ) == 0 ) istatus = NF90_SYNC(idrun) IF( kt == nitend ) istatus = NF90_CLOSE(idrun) END IF ! !== error handling ==! IF( ( sn_cfctl%l_glochk .OR. lsomeoce ) .AND. ( & ! domain contains some ocean points, check for sensible ranges & zmax(1) < 0._wp .OR. & ! negative sea surface height & zmax(2) > 10._wp .OR. & ! too large velocity ( > 10 m/s) & ISNAN( zmax(1) + zmax(2) ) ) ) THEN ! NaN encounter in the tests IF( lk_mpp .AND. sn_cfctl%l_glochk ) THEN ! have use mpp_max (because sn_cfctl%l_glochk=.T. and distributed) CALL mpp_maxloc( 'stpctl', ABS(ssh(:,:,Kmm)) , ssmask(:,:) , zzz, ih ) CALL mpp_maxloc( 'stpctl', ABS(uu(:,:,:,Kmm)) , umask (:,:,:), zzz, iu ) ELSE ! find local min and max locations ih(:) = MAXLOC( ABS( ssh(:,:,Kmm) ) ) + (/ nimpp - 1, njmpp - 1 /) iu(:) = MAXLOC( ABS( uu (:,:,:,Kmm) ) ) + (/ nimpp - 1, njmpp - 1, 0 /) ENDIF WRITE(ctmp1,*) ' stp_ctl: (e3t0) ssh < 0 m or |U| > 10 m/s or NaN encounter in the tests' WRITE(ctmp2,9100) kt, zmax(1), ih(1) , ih(2) WRITE(ctmp3,9200) kt, zmax(2), iu(1) , iu(2) , iu(3) WRITE(ctmp4,*) ' ===> output of last computed fields in output.abort.nc file' CALL dia_wri_state( Kmm, 'output.abort' ) ! create an output.abort file IF( .NOT. sn_cfctl%l_glochk ) THEN WRITE(ctmp8,*) 'E R R O R message from sub-domain: ', narea CALL ctl_stop( 'STOP', ctmp1, ' ', ctmp8, ' ', ctmp2, ctmp3, ctmp4 ) ELSE CALL ctl_stop( ctmp1, ' ', ctmp2, ctmp3, ctmp4 ) ENDIF kindic = -3 ! ENDIF ! 9100 FORMAT (' kt=',i8,' |ssh| min: ',1pg11.4,', at i j : ',2i5) 9200 FORMAT (' kt=',i8,' |U| max: ',1pg11.4,', at i j k: ',3i5) 9500 FORMAT(' it :', i8, ' |ssh|_max: ', D23.16, ' |U|_max: ', D23.16) ! END SUBROUTINE stp_ctl !!====================================================================== END MODULE stpctl