MODULE stpctl !!====================================================================== !! *** MODULE stpctl *** !! Ocean run control : gross check of the ocean time stepping !! version for standalone surface scheme !!====================================================================== !! 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 !! 3.5 ! 2012-03 (S. Alderson) !! 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 ice , ONLY : vt_i, u_ice, tm_i USE phycst , ONLY : rt0 USE sbc_oce , ONLY : lk_oasis ! 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 netcdf ! NetCDF library IMPLICIT NONE PRIVATE PUBLIC stp_ctl ! routine called by step.F90 INTEGER :: nrunid ! netcdf file id INTEGER, DIMENSION(3) :: nvarid ! netcdf variable id !!---------------------------------------------------------------------- !! NEMO/SAS 4.0 , NEMO Consortium (2018) !! $Id$ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE stp_ctl( kt, Kmm ) !!---------------------------------------------------------------------- !! *** ROUTINE stp_ctl *** !! !! ** Purpose : Control the run !! !! ** Method : - Save the time step in numstp !! - Stop the run IF problem encountered by setting nstop > 0 !! Problems checked: ice thickness maximum > 100 m !! ice velocity maximum > 10 m/s !! min ice temperature < -100 degC !! !! ** Actions : "time.step" file = last ocean time-step !! "run.stat" file = run statistics !! nstop indicator sheared among all local domain !!---------------------------------------------------------------------- INTEGER, INTENT(in ) :: kt ! ocean time-step index INTEGER, INTENT(in ) :: Kmm ! ocean time level index !! INTEGER :: ji ! dummy loop indices INTEGER :: idtime, istatus INTEGER , DIMENSION(4) :: iareasum, iareamin, iareamax INTEGER , DIMENSION(3,3) :: iloc ! min/max loc indices REAL(wp) :: zzz ! local real REAL(wp), DIMENSION(4) :: zmax, zmaxlocal LOGICAL :: ll_wrtstp, ll_colruns, ll_wrtruns, ll_0oce LOGICAL, DIMENSION(jpi,jpj) :: llmsk CHARACTER(len=20) :: clname !!---------------------------------------------------------------------- IF( nstop > 0 .AND. ngrdstop > -1 ) RETURN ! stpctl was already called by a child grid ! ll_wrtstp = ( MOD( kt-nit000, sn_cfctl%ptimincr ) == 0 ) .OR. ( kt == nitend ) ll_colruns = ll_wrtstp .AND. sn_cfctl%l_runstat .AND. jpnij > 1 ll_wrtruns = ( ll_colruns .OR. jpnij == 1 ) .AND. lwm ! IF( kt == nit000 ) THEN ! IF( lwp ) THEN WRITE(numout,*) WRITE(numout,*) 'stp_ctl : time-stepping control' WRITE(numout,*) '~~~~~~~' ENDIF ! ! open time.step ascii file, done only by 1st subdomain IF( lk_oasis ) THEN ; clname = 'time_sas.step' ELSE ; clname = 'time.step' ENDIF IF( lwm ) CALL ctl_opn( numstp, clname, 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) ! IF( ll_wrtruns ) THEN IF( lk_oasis ) THEN ; clname = 'run_sas.stat' ELSE ; clname = 'run.stat' ENDIF ! ! open run.stat ascii file, done only by 1st subdomain CALL ctl_opn( numrun, clname, 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) ! ! open run.stat.nc netcdf file, done only by 1st subdomain clname = TRIM(clname)//'.nc' IF( .NOT. Agrif_Root() ) clname = TRIM(Agrif_CFixed())//"_"//TRIM(clname) istatus = NF90_CREATE( TRIM(clname), NF90_CLOBBER, nrunid ) istatus = NF90_DEF_DIM( nrunid, 'time' , NF90_UNLIMITED, idtime ) istatus = NF90_DEF_VAR( nrunid, 'vt_i_max' , NF90_DOUBLE, (/ idtime /), nvarid(1) ) istatus = NF90_DEF_VAR( nrunid, 'abs_u_max', NF90_DOUBLE, (/ idtime /), nvarid(2) ) istatus = NF90_DEF_VAR( nrunid, 'tm_i_min' , NF90_DOUBLE, (/ idtime /), nvarid(3) ) istatus = NF90_ENDDEF(nrunid) ENDIF ! ENDIF ! ! !== write current time step ==! ! !== done only by 1st subdomain at writting timestep ==! IF( lwm .AND. ll_wrtstp ) THEN WRITE ( numstp, '(1x, i8)' ) kt REWIND( numstp ) ENDIF ! !== test of local extrema ==! ! !== done by all processes at every time step ==! ! llmsk( 1:Nis1,:) = .FALSE. ! exclude halos from the checked region llmsk(Nie1: jpi,:) = .FALSE. llmsk(:, 1:Njs1) = .FALSE. llmsk(:,Nje1: jpj) = .FALSE. ! llmsk(Nis0:Nie0,Njs0:Nje0) = tmask(Nis0:Nie0,Njs0:Nje0,1) == 1._wp ! test only the inner domain ! ll_0oce = .NOT. ANY( llmsk(:,:) ) ! no ocean point in the inner domain? ! zmax(1) = MAXVAL( vt_i (:,:) , mask = llmsk ) ! max ice thickness zmax(2) = MAXVAL( ABS( u_ice(:,:) ) , mask = llmsk ) ! max ice velocity (zonal only) zmax(3) = MAXVAL( -tm_i (:,:) + rt0, mask = llmsk ) ! min ice temperature (in degC) zmax(4) = REAL( nstop, wp ) ! stop indicator ! ! !== get global extrema ==! ! !== done by all processes if writting run.stat ==! IF( ll_colruns ) THEN zmaxlocal(:) = zmax(:) CALL mpp_max( "stpctl", zmax ) ! max over the global domain: ok even of ll_0oce = .true. nstop = NINT( zmax(4) ) ! update nstop indicator (now sheared among all local domains) ELSE ! if no ocean point: MAXVAL returns -HUGE => we must overwrite this value to avoid error handling bellow. IF( ll_0oce ) zmax(1:3) = 0._wp ! default "valid" values... ENDIF ! zmax(3) = -zmax(3) ! move back from max(-zz) to min(zz) : easier to manage! IF( ll_colruns ) zmaxlocal(3) = -zmaxlocal(3) ! move back from max(-zz) to min(zz) : easier to manage! ! ! !== write "run.stat" files ==! ! !== done only by 1st subdomain at writting timestep ==! IF( ll_wrtruns ) THEN WRITE(numrun,9500) kt, zmax(1), zmax(2), zmax(3) DO ji = 1, 3 istatus = NF90_PUT_VAR( nrunid, nvarid(ji), (/zmax(ji)/), (/kt/), (/1/) ) END DO IF( kt == nitend ) istatus = NF90_CLOSE(nrunid) END IF ! !== error handling ==! ! !== done by all processes at every time step ==! ! IF( zmax(1) > 100._wp .OR. & ! too large ice thickness maximum ( > 100 m) & zmax(2) > 10._wp .OR. & ! too large ice velocity ( > 10 m/s) & zmax(3) < -101._wp .OR. & ! too cold ice temperature ( < -100 degC) & ISNAN( zmax(1) + zmax(2) + zmax(3) ) .OR. & ! NaN encounter in the tests & ABS( zmax(1) + zmax(2) + zmax(3) ) > HUGE(1._wp) ) THEN ! Infinity encounter in the tests ! iloc(:,:) = 0 IF( ll_colruns ) THEN ! zmax is global, so it is the same on all subdomains -> no dead lock with mpp_maxloc ! first: close the netcdf file, so we can read it IF( lwm .AND. kt /= nitend ) istatus = NF90_CLOSE(nrunid) ! get global loc on the min/max CALL mpp_maxloc( 'stpctl', vt_i(:,:) , llmsk, zzz, iloc(1:2,1) ) ! mpp_maxloc ok if mask = F CALL mpp_maxloc( 'stpctl',ABS( u_ice(:,:) ) , llmsk, zzz, iloc(1:2,2) ) CALL mpp_minloc( 'stpctl', tm_i(:,:) - rt0, llmsk, zzz, iloc(1:2,3) ) ! find which subdomain has the max. iareamin(:) = jpnij+1 ; iareamax(:) = 0 ; iareasum(:) = 0 DO ji = 1, 4 IF( zmaxlocal(ji) == zmax(ji) ) THEN iareamin(ji) = narea ; iareamax(ji) = narea ; iareasum(ji) = 1 ENDIF END DO CALL mpp_min( "stpctl", iareamin ) ! min over the global domain CALL mpp_max( "stpctl", iareamax ) ! max over the global domain CALL mpp_sum( "stpctl", iareasum ) ! sum over the global domain ELSE ! find local min and max locations: ! if we are here, this means that the subdomain contains some oce points -> no need to test the mask used in maxloc iloc(1:2,1) = MAXLOC( vt_i(:,:) , mask = llmsk ) iloc(1:2,2) = MAXLOC( ABS( u_ice(:,:) ) , mask = llmsk ) iloc(1:2,3) = MINLOC( tm_i(:,:) - rt0, mask = llmsk ) DO ji = 1, 3 ! local domain indices ==> global domain indices, excluding halos iloc(1:2,ji) = (/ mig0(iloc(1,ji)), mjg0(iloc(2,ji)) /) END DO iareamin(:) = narea ; iareamax(:) = narea ; iareasum(:) = 1 ! this is local information ENDIF ! WRITE(ctmp1,*) ' stp_ctl: ice_thick > 100 m or |ice_vel| > 10 m/s or ice_temp < -100 degC or NaN encounter in the tests' CALL wrt_line( ctmp2, kt, 'ice_thick max', zmax(1), iloc(:,1), iareasum(1), iareamin(1), iareamax(1) ) CALL wrt_line( ctmp3, kt, '|ice_vel| max', zmax(2), iloc(:,2), iareasum(2), iareamin(2), iareamax(2) ) CALL wrt_line( ctmp4, kt, 'ice_temp min', zmax(3), iloc(:,3), iareasum(3), iareamin(3), iareamax(3) ) IF( Agrif_Root() ) THEN WRITE(ctmp6,*) ' ===> output of last computed fields in output.abort* files' ELSE WRITE(ctmp6,*) ' ===> output of last computed fields in '//TRIM(Agrif_CFixed())//'_output.abort* files' ENDIF ! CALL dia_wri_state( Kmm, 'output.abort' ) ! create an output.abort file ! IF( ll_colruns .or. jpnij == 1 ) THEN ! all processes synchronized -> use lwp to print in opened ocean.output files IF(lwp) THEN ; CALL ctl_stop( ctmp1, ' ', ctmp2, ctmp3, ctmp4, ctmp5, ' ', ctmp6 ) ELSE ; nstop = MAX(1, nstop) ! make sure nstop > 0 (automatically done when calling ctl_stop) ENDIF ELSE ! only mpi subdomains with errors are here -> STOP now CALL ctl_stop( 'STOP', ctmp1, ' ', ctmp2, ctmp3, ctmp4, ctmp5, ' ', ctmp6 ) ENDIF ! ENDIF ! IF( nstop > 0 ) THEN ! an error was detected and we did not abort yet... ngrdstop = Agrif_Fixed() ! store which grid got this error IF( .NOT. ll_colruns .AND. jpnij > 1 ) CALL ctl_stop( 'STOP' ) ! we must abort here to avoid MPI deadlock ENDIF ! 9500 FORMAT(' it :', i8, ' vt_i_max: ', D23.16, ' |u|_max: ', D23.16,' tm_i_min: ', D23.16) ! END SUBROUTINE stp_ctl SUBROUTINE wrt_line( cdline, kt, cdprefix, pval, kloc, ksum, kmin, kmax ) !!---------------------------------------------------------------------- !! *** ROUTINE wrt_line *** !! !! ** Purpose : write information line !! !!---------------------------------------------------------------------- CHARACTER(len=*), INTENT( out) :: cdline CHARACTER(len=*), INTENT(in ) :: cdprefix REAL(wp), INTENT(in ) :: pval INTEGER, DIMENSION(3), INTENT(in ) :: kloc INTEGER, INTENT(in ) :: kt, ksum, kmin, kmax ! CHARACTER(len=80) :: clsuff CHARACTER(len=9 ) :: clkt, clsum, clmin, clmax CHARACTER(len=9 ) :: cli, clj, clk CHARACTER(len=1 ) :: clfmt CHARACTER(len=4 ) :: cl4 ! needed to be able to compile with Agrif, I don't know why INTEGER :: ifmtk !!---------------------------------------------------------------------- WRITE(clkt , '(i9)') kt WRITE(clfmt, '(i1)') INT(LOG10(REAL(jpnij ,wp))) + 1 ! how many digits to we need to write ? (we decide max = 9) !!! WRITE(clsum, '(i'//clfmt//')') ksum ! this is creating a compilation error with AGRIF cl4 = '(i'//clfmt//')' ; WRITE(clsum, cl4) ksum WRITE(clfmt, '(i1)') INT(LOG10(REAL(MAX(1,jpnij-1),wp))) + 1 ! how many digits to we need to write ? (we decide max = 9) cl4 = '(i'//clfmt//')' ; WRITE(clmin, cl4) kmin-1 WRITE(clmax, cl4) kmax-1 ! WRITE(clfmt, '(i1)') INT(LOG10(REAL(jpiglo,wp))) + 1 ! how many digits to we need to write jpiglo? (we decide max = 9) cl4 = '(i'//clfmt//')' ; WRITE(cli, cl4) kloc(1) ! this is ok with AGRIF WRITE(clfmt, '(i1)') INT(LOG10(REAL(jpjglo,wp))) + 1 ! how many digits to we need to write jpjglo? (we decide max = 9) cl4 = '(i'//clfmt//')' ; WRITE(clj, cl4) kloc(2) ! this is ok with AGRIF ! IF( ksum == 1 ) THEN ; WRITE(clsuff,9100) TRIM(clmin) ELSE ; WRITE(clsuff,9200) TRIM(clsum), TRIM(clmin), TRIM(clmax) ENDIF IF(kloc(3) == 0) THEN ifmtk = INT(LOG10(REAL(jpk,wp))) + 1 ! how many digits to we need to write jpk? (we decide max = 9) clk = REPEAT(' ', ifmtk) ! create the equivalent in blank string WRITE(cdline,9300) TRIM(ADJUSTL(clkt)), TRIM(ADJUSTL(cdprefix)), pval, TRIM(cli), TRIM(clj), clk(1:ifmtk), TRIM(clsuff) ELSE WRITE(clfmt, '(i1)') INT(LOG10(REAL(jpk,wp))) + 1 ! how many digits to we need to write jpk? (we decide max = 9) !!! WRITE(clk, '(i'//clfmt//')') kloc(3) ! this is creating a compilation error with AGRIF cl4 = '(i'//clfmt//')' ; WRITE(clk, cl4) kloc(3) ! this is ok with AGRIF WRITE(cdline,9400) TRIM(ADJUSTL(clkt)), TRIM(ADJUSTL(cdprefix)), pval, TRIM(cli), TRIM(clj), TRIM(clk), TRIM(clsuff) ENDIF ! 9100 FORMAT('MPI rank ', a) 9200 FORMAT('found in ', a, ' MPI tasks, spread out among ranks ', a, ' to ', a) 9300 FORMAT('kt ', a, ' ', a, ' ', 1pg11.4, ' at i j ', a, ' ', a, ' ', a, ' ', a) 9400 FORMAT('kt ', a, ' ', a, ' ', 1pg11.4, ' at i j k ', a, ' ', a, ' ', a, ' ', a) ! END SUBROUTINE wrt_line !!====================================================================== END MODULE stpctl