1 | MODULE stpctl |
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2 | !!====================================================================== |
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3 | !! *** MODULE stpctl *** |
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4 | !! Ocean run control : gross check of the ocean time stepping |
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5 | !! version for standalone surface scheme |
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6 | !!====================================================================== |
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7 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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8 | !! 6.0 ! 1992-06 (M. Imbard) |
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9 | !! 8.0 ! 1997-06 (A.M. Treguier) |
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10 | !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module |
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11 | !! 2.0 ! 2009-07 (G. Madec) Add statistic for time-spliting |
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12 | !! 3.5 ! 2012-03 (S. Alderson) |
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13 | !! 4.0 ! 2017-04 (G. Madec) regroup global communications |
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14 | !!---------------------------------------------------------------------- |
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15 | |
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16 | !!---------------------------------------------------------------------- |
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17 | !! stp_ctl : Control the run |
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18 | !!---------------------------------------------------------------------- |
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19 | USE oce ! ocean dynamics and tracers variables |
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20 | USE dom_oce ! ocean space and time domain variables |
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21 | USE ice , ONLY : vt_i, u_ice, tm_i |
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22 | USE diawri ! Standard run outputs (dia_wri_state routine) |
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23 | ! |
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24 | USE in_out_manager ! I/O manager |
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25 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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26 | USE lib_mpp ! distributed memory computing |
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27 | |
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28 | USE netcdf ! NetCDF library |
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29 | IMPLICIT NONE |
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30 | PRIVATE |
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31 | |
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32 | PUBLIC stp_ctl ! routine called by step.F90 |
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33 | |
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34 | INTEGER :: nrunid ! netcdf file id |
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35 | INTEGER, DIMENSION(3) :: nvarid ! netcdf variable id |
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36 | !!---------------------------------------------------------------------- |
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37 | !! NEMO/SAS 4.0 , NEMO Consortium (2018) |
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38 | !! $Id$ |
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39 | !! Software governed by the CeCILL license (see ./LICENSE) |
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40 | !!---------------------------------------------------------------------- |
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41 | CONTAINS |
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42 | |
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43 | SUBROUTINE stp_ctl( kt, Kmm ) |
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44 | !!---------------------------------------------------------------------- |
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45 | !! *** ROUTINE stp_ctl *** |
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46 | !! |
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47 | !! ** Purpose : Control the run |
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48 | !! |
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49 | !! ** Method : - Save the time step in numstp |
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50 | !! - Print it each 50 time steps |
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51 | !! - Stop the run IF problem encountered by setting nstop > 0 |
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52 | !! Problems checked: ice thickness maximum > 100 m |
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53 | !! ice velocity maximum > 10 m/s |
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54 | !! min ice temperature < -100 degC |
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55 | !! |
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56 | !! ** Actions : "time.step" file = last ocean time-step |
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57 | !! "run.stat" file = run statistics |
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58 | !! nstop indicator sheared among all local domain |
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59 | !!---------------------------------------------------------------------- |
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60 | INTEGER, INTENT(in ) :: kt ! ocean time-step index |
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61 | INTEGER, INTENT(in ) :: Kmm ! ocean time level index |
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62 | !! |
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63 | INTEGER :: ji ! dummy loop indices |
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64 | INTEGER :: idtime, istatus |
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65 | INTEGER, DIMENSION(2,3) :: iloc ! min/max loc indices |
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66 | REAL(wp) :: zzz ! local real |
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67 | REAL(wp), DIMENSION(4) :: zmax, zmaxlocal, zarea |
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68 | LOGICAL :: ll_wrtstp, ll_colruns, ll_wrtruns |
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69 | LOGICAL, DIMENSION(jpi,jpj) :: llmsk |
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70 | CHARACTER(len=20) :: clname |
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71 | !!---------------------------------------------------------------------- |
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72 | ! |
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73 | ll_wrtstp = ( MOD( kt-nit000, sn_cfctl%ptimincr ) == 0 ) .OR. ( kt == nitend ) |
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74 | ll_colruns = ll_wrtstp .AND. sn_cfctl%l_runstat |
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75 | ll_wrtruns = ll_colruns .AND. lwm |
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76 | ! |
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77 | IF( kt == nit000 ) THEN |
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78 | ! |
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79 | IF( lwp ) THEN |
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80 | WRITE(numout,*) |
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81 | WRITE(numout,*) 'stp_ctl : time-stepping control' |
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82 | WRITE(numout,*) '~~~~~~~' |
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83 | ENDIF |
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84 | ! ! open time.step ascii file, done only by 1st subdomain |
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85 | IF( lwm ) CALL ctl_opn( numstp, 'time.step', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) |
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86 | ! |
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87 | IF( ll_wrtruns ) THEN |
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88 | ! ! open run.stat ascii file, done only by 1st subdomain |
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89 | CALL ctl_opn( numrun, 'run.stat', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) |
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90 | ! ! open run.stat.nc netcdf file, done only by 1st subdomain |
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91 | clname = 'run.stat.nc' |
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92 | IF( .NOT. Agrif_Root() ) clname = TRIM(Agrif_CFixed())//"_"//TRIM(clname) |
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93 | istatus = NF90_CREATE( TRIM(clname), NF90_CLOBBER, nrunid ) |
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94 | istatus = NF90_DEF_DIM( nrunid, 'time' , NF90_UNLIMITED, idtime ) |
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95 | istatus = NF90_DEF_VAR( nrunid, 'vt_i_max' , NF90_DOUBLE, (/ idtime /), nvarid(1) ) |
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96 | istatus = NF90_DEF_VAR( nrunid, 'abs_u_max', NF90_DOUBLE, (/ idtime /), nvarid(2) ) |
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97 | istatus = NF90_DEF_VAR( nrunid, 'tm_i_min' , NF90_DOUBLE, (/ idtime /), nvarid(3) ) |
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98 | istatus = NF90_ENDDEF(nrunid) |
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99 | ENDIF |
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100 | ! |
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101 | ENDIF |
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102 | ! |
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103 | ! !== write current time step ==! |
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104 | ! !== done only by 1st subdomain at writting timestep ==! |
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105 | IF( lwm .AND. ll_wrtstp ) THEN |
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106 | WRITE ( numstp, '(1x, i8)' ) kt |
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107 | REWIND( numstp ) |
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108 | ENDIF |
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109 | ! !== test of local extrema ==! |
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110 | ! !== done by all processes at every time step ==! |
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111 | llmsk(:,:) = tmask(:,:,1) == 1._wp |
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112 | zmax(1) = MAXVAL( vt_i (:,:) , mask = llmsk ) ! max ice thickness |
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113 | zmax(2) = MAXVAL( ABS( u_ice(:,:) ) , mask = llmsk ) ! max ice velocity (zonal only) |
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114 | zmax(3) = MAXVAL( -tm_i (:,:) + 273.15_wp, mask = llmsk ) ! min ice temperature |
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115 | zmax(4) = REAL( nstop, wp ) ! stop indicator |
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116 | ! !== get global extrema ==! |
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117 | ! !== done by all processes if writting run.stat ==! |
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118 | IF( ll_colruns ) THEN |
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119 | zmaxlocal(:) = zmax(:) |
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120 | CALL mpp_max( "stpctl", zmax ) ! max over the global domain |
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121 | nstop = NINT( zmax(4) ) ! update nstop indicator (now sheared among all local domains) |
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122 | ENDIF |
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123 | ! !== write "run.stat" files ==! |
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124 | ! !== done only by 1st subdomain at writting timestep ==! |
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125 | IF( ll_wrtruns ) THEN |
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126 | WRITE(numrun,9500) kt, zmax(1), zmax(2), -zmax(3) |
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127 | istatus = NF90_PUT_VAR( nrunid, nvarid(1), (/ zmax(1)/), (/kt/), (/1/) ) |
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128 | istatus = NF90_PUT_VAR( nrunid, nvarid(2), (/ zmax(2)/), (/kt/), (/1/) ) |
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129 | istatus = NF90_PUT_VAR( nrunid, nvarid(3), (/-zmax(3)/), (/kt/), (/1/) ) |
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130 | IF( kt == nitend ) istatus = NF90_CLOSE(nrunid) |
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131 | END IF |
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132 | ! !== error handling ==! |
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133 | ! !== done by all processes at every time step ==! |
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134 | ! |
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135 | IF( zmax(1) > 100._wp .OR. & ! too large ice thickness maximum ( > 100 m) |
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136 | & zmax(2) > 10._wp .OR. & ! too large ice velocity ( > 10 m/s) |
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137 | & zmax(3) > 101._wp .OR. & ! too cold ice temperature ( < -100 degC) |
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138 | & ISNAN( zmax(1) + zmax(2) + zmax(3) ) ) THEN ! NaN encounter in the tests |
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139 | ! |
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140 | IF( ll_colruns ) THEN ! zmax is global, so it is the same on all subdomains -> no dead lock with mpp_maxloc |
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141 | ! first: close the netcdf file, so we can read it |
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142 | IF( lwm .AND. kt /= nitend ) istatus = NF90_CLOSE(nrunid) |
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143 | ! get global loc on the min/max |
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144 | CALL mpp_maxloc( 'stpctl', vt_i(:,:) , tmask(:,:,1), zzz, iloc(1:2,1) ) ! mpp_maxloc ok if mask = F |
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145 | CALL mpp_maxloc( 'stpctl',ABS( u_ice(:,:) ) , tmask(:,:,1), zzz, iloc(1:2,2) ) |
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146 | CALL mpp_minloc( 'stpctl', tm_i(:,:) - 273.15_wp, tmask(:,:,1), zzz, iloc(1:2,3) ) |
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147 | ! find which subdomain has the max. |
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148 | zarea(:) = 0._wp |
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149 | DO ji = 1, 4 |
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150 | IF( zmaxlocal(ji) == zmax(ji) ) zarea(ji) = narea |
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151 | END DO |
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152 | CALL mpp_max( "stpctl", zarea ) ! max over the global domain |
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153 | ELSE ! find local min and max locations: |
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154 | ! if we are here, this means that the subdomain contains some oce points -> no need to test the mask used in maxloc |
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155 | iloc(1:2,1) = MAXLOC( vt_i(:,:) , mask = llmsk ) + (/ nimpp - 1, njmpp - 1/) |
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156 | iloc(1:2,2) = MAXLOC( ABS( u_ice(:,:) ) , mask = llmsk ) + (/ nimpp - 1, njmpp - 1/) |
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157 | iloc(1:2,3) = MINLOC( tm_i(:,:) - 273.15_wp, mask = llmsk ) + (/ nimpp - 1, njmpp - 1/) |
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158 | zarea(:) = narea ! this is local information |
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159 | ENDIF |
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160 | ! |
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161 | 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' |
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162 | WRITE(ctmp2,9100) kt, ' ice_thick max', zmax(1), iloc(1,1), iloc(2,1), NINT(zarea(1))-1 |
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163 | WRITE(ctmp3,9100) kt, ' |ice_vel| max', zmax(2), iloc(1,2), iloc(2,3), NINT(zarea(2))-1 |
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164 | WRITE(ctmp4,9100) kt, ' ice_temp min', -zmax(3), iloc(1,2), iloc(2,3), NINT(zarea(3))-1 |
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165 | WRITE(ctmp6,*) ' ===> output of last computed fields in output.abort.nc file' |
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166 | ! |
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167 | CALL dia_wri_state( Kmm, 'output.abort' ) ! create an output.abort file |
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168 | ! |
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169 | IF( ll_colruns ) THEN ! all processes are synchronized -> use lwp to do the print in opened ocean.output files |
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170 | IF(lwp) CALL ctl_stop( ctmp1, ' ', ctmp2, ctmp3, ctmp4, ctmp5, ' ', ctmp6 ) |
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171 | ELSE ! only mpi subdomains with errors are here -> STOP now |
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172 | CALL ctl_stop( 'STOP', ctmp1, ' ', ctmp2, ctmp3, ctmp4, ctmp5, ' ', ctmp6 ) |
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173 | ENDIF |
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174 | ! |
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175 | IF( nstop == 0 ) nstop = 1 |
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176 | ! |
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177 | ENDIF |
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178 | ! |
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179 | 9100 FORMAT(' kt ',i8,a,1pg11.4,' at i j',2i6,' MPI rank',i6) |
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180 | 9500 FORMAT(' it :', i8, ' vt_i_max: ', D23.16, ' |u|_max: ', D23.16,' tm_i_min: ', D23.16) |
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181 | ! |
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182 | END SUBROUTINE stp_ctl |
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183 | |
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184 | !!====================================================================== |
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185 | END MODULE stpctl |
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