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 | !!====================================================================== |
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6 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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7 | !! 6.0 ! 1992-06 (M. Imbard) |
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8 | !! 8.0 ! 1997-06 (A.M. Treguier) |
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9 | !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module |
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10 | !! 2.0 ! 2009-07 (G. Madec) Add statistic for time-spliting |
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11 | !! 3.7 ! 2016-09 (G. Madec) Remove solver |
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12 | !! 4.0 ! 2017-04 (G. Madec) regroup global communications |
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13 | !!---------------------------------------------------------------------- |
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14 | |
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15 | !!---------------------------------------------------------------------- |
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16 | !! stp_ctl : Control the run |
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17 | !!---------------------------------------------------------------------- |
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18 | USE oce ! ocean dynamics and tracers variables |
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19 | USE dom_oce ! ocean space and time domain variables |
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20 | USE c1d ! 1D vertical configuration |
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21 | ! |
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22 | USE in_out_manager ! I/O manager |
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23 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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24 | USE lib_mpp ! distributed memory computing |
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25 | USE wet_dry, ONLY: ll_wd, ssh_ref ! reference depth for negative bathy |
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26 | |
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27 | IMPLICIT NONE |
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28 | PRIVATE |
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29 | |
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30 | PUBLIC stp_ctl ! routine called by step.F90 |
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31 | !!---------------------------------------------------------------------- |
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32 | !! NEMO/OPA 4.0 , NEMO Consortium (2017) |
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33 | !! $Id$ |
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34 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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35 | !!---------------------------------------------------------------------- |
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36 | CONTAINS |
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37 | |
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38 | SUBROUTINE stp_ctl( kt, kindic ) |
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39 | !!---------------------------------------------------------------------- |
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40 | !! *** ROUTINE stp_ctl *** |
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41 | !! |
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42 | !! ** Purpose : Control the run |
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43 | !! |
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44 | !! ** Method : - Save the time step in numstp |
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45 | !! - Print it each 50 time steps |
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46 | !! - Stop the run IF problem encountered by setting indic=-3 |
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47 | !! Problems checked: |ssh| maximum larger than 10 m |
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48 | !! |U| maximum larger than 10 m/s |
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49 | !! negative sea surface salinity |
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50 | !! |
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51 | !! ** Actions : "time.step" file = last ocean time-step |
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52 | !! "run.stat" file = run statistics |
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53 | !!---------------------------------------------------------------------- |
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54 | INTEGER, INTENT(in ) :: kt ! ocean time-step index |
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55 | INTEGER, INTENT(inout) :: kindic ! error indicator |
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56 | !! |
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57 | INTEGER :: ji, jj, jk ! dummy loop indices |
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58 | INTEGER :: iih, ijh ! local integers |
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59 | INTEGER :: iiu, iju, iku ! - - |
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60 | INTEGER :: iis, ijs, iks ! - - |
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61 | REAL(wp) :: zzz ! local real |
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62 | INTEGER , DIMENSION(3) :: ilocu, ilocs |
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63 | INTEGER , DIMENSION(2) :: iloch |
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64 | REAL(wp), DIMENSION(3) :: zmax |
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65 | !!---------------------------------------------------------------------- |
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66 | ! |
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67 | IF( kt == nit000 .AND. lwp ) THEN |
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68 | WRITE(numout,*) |
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69 | WRITE(numout,*) 'stp_ctl : time-stepping control' |
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70 | WRITE(numout,*) '~~~~~~~' |
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71 | ! ! open time.step file |
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72 | CALL ctl_opn( numstp, 'time.step', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) |
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73 | ! ! open run.stat file |
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74 | CALL ctl_opn( numrun, 'run.stat', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea ) |
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75 | ENDIF |
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76 | ! |
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77 | IF(lwp) THEN !== current time step ==! ("time.step" file) |
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78 | WRITE ( numstp, '(1x, i8)' ) kt |
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79 | REWIND( numstp ) |
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80 | ENDIF |
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81 | ! |
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82 | ! !== test of extrema ==! |
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83 | IF( ll_wd ) THEN |
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84 | zmax(1) = MAXVAL( ABS( sshn(:,:) + ssh_ref*tmask(:,:,1) ) ) ! ssh max |
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85 | ELSE |
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86 | zmax(1) = MAXVAL( ABS( sshn(:,:) ) ) ! ssh max |
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87 | ENDIF |
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88 | zmax(2) = MAXVAL( ABS( un(:,:,:) ) ) ! velocity max (zonal only) |
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89 | zmax(3) = MAXVAL( -tsn(:,:,:,jp_sal) , mask = tmask(:,:,:) == 1._wp ) ! minus salinity max |
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90 | ! |
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91 | IF( lk_mpp ) CALL mpp_max_multiple( zmax(:), 3 ) ! max over the global domain |
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92 | ! |
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93 | IF( MOD( kt, nwrite ) == 1 .AND. lwp ) THEN |
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94 | WRITE(numout,*) ' ==>> time-step= ', kt, ' |ssh| max: ', zmax(1), ' |U| max: ', zmax(2), & |
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95 | & ' S min: ' , - zmax(3) |
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96 | ENDIF |
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97 | ! |
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98 | IF ( zmax(1) > 15._wp .OR. & ! too large sea surface height ( > 10 m) |
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99 | & zmax(2) > 10._wp .OR. & ! too large velocity ( > 10 m/s) |
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100 | & zmax(3) >= 0._wp .OR. & ! negative or zero sea surface salinity |
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101 | & ISNAN( zmax(1) + zmax(2) + zmax(3) ) ) THEN ! NaN encounter in the tests |
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102 | IF( lk_mpp ) THEN |
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103 | CALL mpp_maxloc( ABS(sshn) , ssmask(:,:) , zzz, iih, ijh ) |
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104 | CALL mpp_maxloc( ABS(un) , umask (:,:,:), zzz, iiu, iju, iku ) |
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105 | CALL mpp_minloc( tsn(:,:,:,jp_sal), tmask (:,:,:), zzz, iis, ijs, iks ) |
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106 | ELSE |
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107 | iloch = MINLOC( ABS( sshn(:,:) ) ) |
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108 | ilocu = MAXLOC( ABS( un (:,:,:) ) ) |
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109 | ilocs = MINLOC( tsn(:,:,:,jp_sal) , mask = tmask(:,:,:) == 1._wp ) |
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110 | iih = iloch(1) + nimpp - 1 ; ijh = iloch(2) + njmpp - 1 |
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111 | iiu = ilocu(1) + nimpp - 1 ; iju = ilocu(2) + njmpp - 1 ; iku = ilocu(3) |
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112 | iis = ilocs(1) + nimpp - 1 ; ijs = ilocs(2) + njmpp - 1 ; iks = ilocu(3) |
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113 | ENDIF |
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114 | IF(lwp) THEN |
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115 | WRITE(numout,cform_err) |
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116 | WRITE(numout,*) ' stpctl: |ssh| > 10 m or |U| > 10 m/s or S < 0 or NaN encounter in the tests' |
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117 | WRITE(numout,*) ' ====== ' |
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118 | WRITE(numout,9100) kt, zmax(1), iih, ijh |
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119 | WRITE(numout,9200) kt, zmax(2), iiu, iju, iku |
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120 | WRITE(numout,9300) kt, - zmax(3), iis, ijs, iks |
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121 | WRITE(numout,*) |
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122 | WRITE(numout,*) ' output of last computed fields in output.abort.nc file' |
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123 | ENDIF |
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124 | kindic = -3 |
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125 | ENDIF |
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126 | 9100 FORMAT (' kt=',i8,' |ssh| max: ',1pg11.4,', at i j : ',2i5) |
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127 | 9200 FORMAT (' kt=',i8,' |U| max: ',1pg11.4,', at i j k: ',3i5) |
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128 | 9300 FORMAT (' kt=',i8,' S min: ',1pg11.4,', at i j : ',2i5) |
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129 | ! |
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130 | ! !== run statistics ==! ("run.stat" file) |
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131 | IF(lwp) WRITE(numrun,9400) kt, zmax(1), zmax(2), - zmax(3) |
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132 | ! |
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133 | 9400 FORMAT(' it :', i8, ' |ssh|_max: ', e16.10, ' |U|_max: ',e16.10,' S_min: ',e16.10) |
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134 | ! |
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135 | END SUBROUTINE stp_ctl |
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136 | |
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137 | !!====================================================================== |
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138 | END MODULE stpctl |
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