1 | MODULE opa |
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2 | !!============================================================================== |
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3 | !! *** MODULE opa *** |
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4 | !! Ocean system : OPA ocean dynamics (including on-line tracers and sea-ice) |
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5 | !!============================================================================== |
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6 | !! History : OPA ! 1990-10 (C. Levy, G. Madec) Original code |
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7 | !! 7.0 ! 1991-11 (M. Imbard, C. Levy, G. Madec) |
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8 | !! 7.1 ! 1993-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar, |
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9 | !! P. Delecluse, C. Perigaud, G. Caniaux, B. Colot, C. Maes ) release 7.1 |
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10 | !! - ! 1992-06 (L.Terray) coupling implementation |
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11 | !! - ! 1993-11 (M.A. Filiberti) IGLOO sea-ice |
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12 | !! 8.0 ! 1996-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar, |
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13 | !! P. Delecluse, L.Terray, M.A. Filiberti, J. Vialar, A.M. Treguier, M. Levy) release 8.0 |
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14 | !! 8.1 ! 1997-06 (M. Imbard, G. Madec) |
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15 | !! 8.2 ! 1999-11 (M. Imbard, H. Goosse) LIM sea-ice model |
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16 | !! ! 1999-12 (V. Thierry, A-M. Treguier, M. Imbard, M-A. Foujols) OPEN-MP |
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17 | !! ! 2000-07 (J-M Molines, M. Imbard) Open Boundary Conditions (CLIPPER) |
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18 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and modules |
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19 | !! - ! 2004-06 (R. Redler, NEC CCRLE, Germany) add OASIS[3/4] coupled interfaces |
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20 | !! - ! 2004-08 (C. Talandier) New trends organization |
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21 | !! - ! 2005-06 (C. Ethe) Add the 1D configuration possibility |
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22 | !! - ! 2005-11 (V. Garnier) Surface pressure gradient organization |
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23 | !! - ! 2006-03 (L. Debreu, C. Mazauric) Agrif implementation |
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24 | !! - ! 2006-04 (G. Madec, R. Benshila) Step reorganization |
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25 | !! - ! 2007-07 (J. Chanut, A. Sellar) Unstructured open boundaries (BDY) |
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26 | !! 3.2 ! 2009-08 (S. Masson) open/write in the listing file in mpp |
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27 | !!---------------------------------------------------------------------- |
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28 | |
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29 | !!---------------------------------------------------------------------- |
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30 | !! opa_model : solve ocean dynamics, tracer and/or sea-ice |
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31 | !! opa_init : initialization of the opa model |
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32 | !! opa_flg : initialisation of algorithm flag |
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33 | !! opa_closefile : close remaining files |
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34 | !!---------------------------------------------------------------------- |
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35 | USE oce ! dynamics and tracers variables |
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36 | USE dom_oce ! ocean space domain variables |
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37 | USE sbc_oce ! surface boundary condition: ocean |
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38 | USE trdmod_oce ! ocean variables trends |
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39 | USE domcfg ! domain configuration (dom_cfg routine) |
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40 | USE mppini ! shared/distributed memory setting (mpp_init routine) |
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41 | USE domain ! domain initialization (dom_init routine) |
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42 | USE obc_par ! open boundary cond. parameters |
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43 | USE obcini ! open boundary cond. initialization (obc_ini routine) |
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44 | USE bdy_par ! unstructured open boundary cond. parameters |
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45 | USE bdyini ! unstructured open boundary cond. initialization (bdy_init routine) |
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46 | USE istate ! initial state setting (istate_init routine) |
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47 | USE sbcmod ! surface boundary condition |
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48 | USE eosbn2 ! equation of state (eos_init routine) |
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49 | USE dynhpg ! hydrostatic pressure gradient |
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50 | USE ldfdyn ! lateral viscosity setting (ldfdyn_init routine) |
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51 | USE ldftra ! lateral diffusivity setting (ldftra_init routine) |
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52 | USE zdfini |
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53 | USE phycst ! physical constant (par_cst routine) |
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54 | USE trdmod ! momentum/tracers trends (trd_mod_init routine) |
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55 | USE diaptr ! poleward transports (dia_ptr_init routine) |
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56 | USE step ! OPA time-stepping (stp routine) |
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57 | #if defined key_oasis3 |
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58 | USE cpl_oasis3 ! OASIS3 coupling |
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59 | #elif defined key_oasis4 |
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60 | USE cpl_oasis4 ! OASIS4 coupling (not working) |
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61 | #endif |
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62 | USE dynspg_oce ! Control choice of surface pressure gradient schemes |
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63 | USE prtctl ! Print control (prt_ctl_init routine) |
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64 | USE c1d ! 1D configuration |
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65 | USE dyncor_c1d ! Coriolis factor at T-point |
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66 | USE step_c1d ! Time stepping loop for the 1D configuration |
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67 | #if defined key_top |
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68 | USE trcini ! passive tracer initialisation |
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69 | #endif |
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70 | |
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71 | USE iom |
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72 | USE in_out_manager ! I/O manager |
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73 | USE lib_mpp ! distributed memory computing |
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74 | #if defined key_iomput |
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75 | USE mod_ioclient |
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76 | #endif |
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77 | |
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78 | IMPLICIT NONE |
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79 | PRIVATE |
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80 | |
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81 | PUBLIC opa_model ! called by model.F90 |
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82 | PUBLIC opa_init ! needed by AGRIF |
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83 | |
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84 | CHARACTER (len=64) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing |
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85 | |
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86 | !!---------------------------------------------------------------------- |
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87 | !! NEMO/OPA 3.2 , LOCEAN-IPSL (2009) |
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88 | !! $Id$ |
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89 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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90 | !!---------------------------------------------------------------------- |
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91 | |
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92 | CONTAINS |
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93 | |
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94 | SUBROUTINE opa_model |
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95 | !!---------------------------------------------------------------------- |
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96 | !! *** ROUTINE opa *** |
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97 | !! |
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98 | !! ** Purpose : opa solves the primitive equations on an orthogonal |
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99 | !! curvilinear mesh on the sphere. |
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100 | !! |
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101 | !! ** Method : - model general initialization |
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102 | !! - launch the time-stepping (stp routine) |
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103 | !! - finalize the run by closing files and communications |
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104 | !! |
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105 | !! References : Madec, Delecluse,Imbard, and Levy, 1997: internal report, IPSL. |
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106 | !! Madec, 2008, internal report, IPSL. |
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107 | !!---------------------------------------------------------------------- |
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108 | INTEGER :: istp ! time step index |
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109 | !!---------------------------------------------------------------------- |
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110 | |
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111 | #if defined key_agrif |
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112 | CALL Agrif_Init_Grids() ! AGRIF: set the meshes |
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113 | #endif |
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114 | |
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115 | ! !-----------------------! |
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116 | CALL opa_init !== Initialisations ==! |
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117 | ! !-----------------------! |
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118 | |
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119 | ! check that all process are still there... If some process have an error, |
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120 | ! they will never enter in step and other processes will wait until the end of the cpu time! |
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121 | IF( lk_mpp ) CALL mpp_max( nstop ) |
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122 | |
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123 | IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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124 | |
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125 | ! !-----------------------! |
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126 | ! !== time stepping ==! |
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127 | ! !-----------------------! |
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128 | istp = nit000 |
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129 | IF( lk_c1d ) THEN !== 1D configuration ==! |
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130 | DO WHILE ( istp <= nitend .AND. nstop == 0 ) |
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131 | CALL stp_c1d( istp ) |
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132 | istp = istp + 1 |
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133 | END DO |
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134 | ELSE !== 3D ocean with ==! |
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135 | DO WHILE ( istp <= nitend .AND. nstop == 0 ) |
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136 | #if defined key_agrif |
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137 | CALL Agrif_Step( stp ) ! AGRIF: time stepping |
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138 | #else |
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139 | CALL stp( istp ) ! standard time stepping |
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140 | #endif |
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141 | istp = istp + 1 |
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142 | IF( lk_mpp ) CALL mpp_max( nstop ) |
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143 | END DO |
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144 | ENDIF |
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145 | |
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146 | ! !------------------------! |
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147 | ! !== finalize the run ==! |
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148 | ! !------------------------! |
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149 | IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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150 | ! |
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151 | IF( nstop /= 0 .AND. lwp ) THEN ! error print |
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152 | WRITE(numout,cform_err) |
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153 | WRITE(numout,*) nstop, ' error have been found' |
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154 | ENDIF |
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155 | ! |
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156 | CALL opa_closefile |
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157 | #if defined key_oasis3 || defined key_oasis4 |
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158 | IF( Agrif_Root() ) THEN |
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159 | CALL cpl_prism_finalize ! end coupling and mpp communications with OASIS |
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160 | ENDIF |
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161 | #else |
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162 | IF( lk_mpp ) CALL mppstop ! end mpp communications |
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163 | #endif |
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164 | ! |
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165 | END SUBROUTINE opa_model |
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166 | |
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167 | |
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168 | SUBROUTINE opa_init |
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169 | !!---------------------------------------------------------------------- |
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170 | !! *** ROUTINE opa_init *** |
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171 | !! |
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172 | !! ** Purpose : initialization of the opa model |
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173 | !! |
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174 | !!---------------------------------------------------------------------- |
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175 | #if defined key_oasis3 || defined key_oasis4 || defined key_iomput |
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176 | INTEGER :: ilocal_comm |
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177 | #endif |
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178 | CHARACTER(len=80),dimension(10) :: cltxt = '' |
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179 | INTEGER :: ji ! local loop indices |
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180 | !! |
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181 | NAMELIST/namctl/ ln_ctl , nn_print, nn_ictls, nn_ictle, & |
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182 | & nn_isplt, nn_jsplt, nn_jctls, nn_jctle, nn_bench, nn_bit_cmp |
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183 | !!---------------------------------------------------------------------- |
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184 | ! |
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185 | ! ! open Namelist file |
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186 | CALL ctl_opn( numnam, 'namelist', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. ) |
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187 | ! |
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188 | READ( numnam, namctl ) ! Namelist namctl : Control prints & Benchmark |
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189 | ! |
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190 | ! !--------------------------------------------! |
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191 | ! ! set communicator & select the local node ! |
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192 | ! !--------------------------------------------! |
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193 | #if defined key_iomput |
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194 | # if defined key_oasis3 || defined key_oasis4 |
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195 | IF( Agrif_Root() ) THEN |
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196 | CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis |
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197 | CALL init_ioclient() ! io_server will get its communicators (if needed) from oasis (we don't see it) |
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198 | ENDIF |
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199 | # else |
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200 | IF( Agrif_Root() ) THEN |
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201 | CALL init_ioclient( ilocal_comm ) ! nemo local communicator (used or not) given by the io_server |
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202 | ENDIF |
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203 | # endif |
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204 | narea = mynode( cltxt, ilocal_comm ) ! Nodes selection |
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205 | |
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206 | #else |
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207 | # if defined key_oasis3 || defined key_oasis4 |
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208 | IF( Agrif_Root() ) THEN |
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209 | CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis |
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210 | ENDIF |
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211 | narea = mynode( cltxt, ilocal_comm ) ! Nodes selection (control print return in cltxt) |
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212 | # else |
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213 | narea = mynode( cltxt ) ! Nodes selection (control print return in cltxt) |
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214 | # endif |
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215 | #endif |
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216 | narea = narea + 1 ! mynode return the rank of proc (0 --> jpnij -1 ) |
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217 | |
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218 | lwp = (narea == 1) .OR. ln_ctl ! control of all listing output print |
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219 | |
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220 | IF(lwp) THEN ! open listing units |
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221 | ! |
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222 | CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE., narea ) |
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223 | ! |
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224 | WRITE(numout,*) |
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225 | WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean' |
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226 | WRITE(numout,*) ' NEMO team' |
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227 | WRITE(numout,*) ' Ocean General Circulation Model' |
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228 | WRITE(numout,*) ' version 3.2 (2009) ' |
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229 | WRITE(numout,*) |
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230 | WRITE(numout,*) |
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231 | DO ji = 1, SIZE(cltxt) |
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232 | IF( TRIM(cltxt(ji)) /= '' ) WRITE(numout,*) cltxt(ji) ! control print of mynode |
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233 | END DO |
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234 | WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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235 | ! |
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236 | ENDIF |
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237 | ! !--------------------------------! |
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238 | ! ! Model general initialization ! |
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239 | ! !--------------------------------! |
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240 | |
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241 | CALL opa_flg ! Control prints & Benchmark |
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242 | |
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243 | ! Domain decomposition |
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244 | IF( jpni*jpnj == jpnij ) THEN ; CALL mpp_init ! standard cutting out |
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245 | ELSE ; CALL mpp_init2 ! eliminate land processors |
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246 | ENDIF |
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247 | |
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248 | CALL phy_cst ! Physical constants |
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249 | CALL eos_init ! Equation of state |
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250 | CALL dom_cfg ! Domain configuration |
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251 | CALL dom_init ! Domain |
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252 | !!gm c1d case can be moved in dom_init routine |
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253 | IF( lk_c1d ) THEN ! 1D configuration |
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254 | CALL cor_c1d ! Coriolis defined at T-point |
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255 | umask(:,:,:) = tmask(:,:,:) ! U, V and T-points are the same |
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256 | vmask(:,:,:) = tmask(:,:,:) ! |
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257 | ENDIF |
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258 | !!gm c1d end |
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259 | |
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260 | CALL opa_northcomms ! Initialise the northfold neighbour lists (must be done after the masks are defined) |
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261 | |
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262 | IF( ln_ctl ) CALL prt_ctl_init ! Print control |
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263 | |
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264 | IF( lk_obc ) CALL obc_init ! Open boundaries |
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265 | IF( lk_bdy ) CALL bdy_init ! Unstructured open boundaries |
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266 | |
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267 | CALL istate_init ! ocean initial state (Dynamics and tracers) |
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268 | |
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269 | ! ! Ocean physics |
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270 | CALL sbc_init ! Read namsbc namelist : surface module (needed for iom_init) |
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271 | CALL ldf_tra_init ! Lateral ocean tracer physics |
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272 | CALL ldf_dyn_init ! Lateral ocean momentum physics |
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273 | CALL zdf_init ! Vertical ocean physics |
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274 | |
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275 | #if defined key_top |
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276 | CALL trc_ini ! Passive tracers |
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277 | #endif |
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278 | |
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279 | ! ! diagnostics |
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280 | CALL iom_init ! iom_put initialization |
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281 | CALL dia_ptr_init ! Poleward TRansports initialization |
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282 | CALL trd_mod_init ! Mixed-layer/Vorticity/Integral constraints trends |
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283 | ! |
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284 | END SUBROUTINE opa_init |
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285 | |
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286 | |
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287 | SUBROUTINE opa_flg |
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288 | !!---------------------------------------------------------------------- |
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289 | !! *** ROUTINE opa *** |
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290 | !! |
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291 | !! ** Purpose : Initialise logical flags that control the choice of |
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292 | !! some algorithm or control print |
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293 | !! |
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294 | !! ** Method : - print namctl information |
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295 | !! - Read in namilist namflg logical flags |
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296 | !!---------------------------------------------------------------------- |
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297 | NAMELIST/namdyn_hpg/ ln_hpg_zco , ln_hpg_zps , ln_hpg_sco, ln_hpg_hel, & |
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298 | & ln_hpg_wdj , ln_hpg_djc , ln_hpg_rot, rn_gamma , & |
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299 | & ln_dynhpg_imp, nn_dynhpg_rst |
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300 | !!---------------------------------------------------------------------- |
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301 | |
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302 | IF(lwp) THEN ! Parameter print |
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303 | WRITE(numout,*) |
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304 | WRITE(numout,*) 'opa_flg: Control prints & Benchmark' |
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305 | WRITE(numout,*) '~~~~~~~ ' |
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306 | WRITE(numout,*) ' Namelist namctl' |
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307 | WRITE(numout,*) ' run control (for debugging) ln_ctl = ', ln_ctl |
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308 | WRITE(numout,*) ' level of print nn_print = ', nn_print |
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309 | WRITE(numout,*) ' Start i indice for SUM control nn_ictls = ', nn_ictls |
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310 | WRITE(numout,*) ' End i indice for SUM control nn_ictle = ', nn_ictle |
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311 | WRITE(numout,*) ' Start j indice for SUM control nn_jctls = ', nn_jctls |
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312 | WRITE(numout,*) ' End j indice for SUM control nn_jctle = ', nn_jctle |
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313 | WRITE(numout,*) ' number of proc. following i nn_isplt = ', nn_isplt |
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314 | WRITE(numout,*) ' number of proc. following j nn_jsplt = ', nn_jsplt |
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315 | WRITE(numout,*) ' benchmark parameter (0/1) nn_bench = ', nn_bench |
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316 | WRITE(numout,*) ' bit comparison mode (0/1) nn_bit_cmp = ', nn_bit_cmp |
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317 | ENDIF |
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318 | |
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319 | nprint = nn_print ! convert DOCTOR namelist names into OLD names |
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320 | nictls = nn_ictls |
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321 | nictle = nn_ictle |
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322 | njctls = nn_jctls |
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323 | njctle = nn_jctle |
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324 | isplt = nn_isplt |
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325 | jsplt = nn_jsplt |
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326 | nbench = nn_bench |
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327 | nbit_cmp = nn_bit_cmp |
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328 | |
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329 | ! ! Parameter control |
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330 | ! |
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331 | IF( ln_ctl ) THEN ! sub-domain area indices for the control prints |
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332 | IF( lk_mpp ) THEN |
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333 | isplt = jpni ; jsplt = jpnj ; ijsplt = jpni*jpnj ! the domain is forced to the real splitted domain |
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334 | ELSE |
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335 | IF( isplt == 1 .AND. jsplt == 1 ) THEN |
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336 | CALL ctl_warn( ' - isplt & jsplt are equal to 1', & |
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337 | & ' - the print control will be done over the whole domain' ) |
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338 | ENDIF |
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339 | ijsplt = isplt * jsplt ! total number of processors ijsplt |
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340 | ENDIF |
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341 | IF(lwp) WRITE(numout,*)' - The total number of processors over which the' |
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342 | IF(lwp) WRITE(numout,*)' print control will be done is ijsplt : ', ijsplt |
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343 | ! |
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344 | ! ! indices used for the SUM control |
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345 | IF( nictls+nictle+njctls+njctle == 0 ) THEN ! print control done over the default area |
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346 | lsp_area = .FALSE. |
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347 | ELSE ! print control done over a specific area |
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348 | lsp_area = .TRUE. |
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349 | IF( nictls < 1 .OR. nictls > jpiglo ) THEN |
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350 | CALL ctl_warn( ' - nictls must be 1<=nictls>=jpiglo, it is forced to 1' ) |
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351 | nictls = 1 |
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352 | ENDIF |
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353 | IF( nictle < 1 .OR. nictle > jpiglo ) THEN |
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354 | CALL ctl_warn( ' - nictle must be 1<=nictle>=jpiglo, it is forced to jpiglo' ) |
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355 | nictle = jpiglo |
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356 | ENDIF |
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357 | IF( njctls < 1 .OR. njctls > jpjglo ) THEN |
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358 | CALL ctl_warn( ' - njctls must be 1<=njctls>=jpjglo, it is forced to 1' ) |
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359 | njctls = 1 |
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360 | ENDIF |
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361 | IF( njctle < 1 .OR. njctle > jpjglo ) THEN |
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362 | CALL ctl_warn( ' - njctle must be 1<=njctle>=jpjglo, it is forced to jpjglo' ) |
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363 | njctle = jpjglo |
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364 | ENDIF |
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365 | ENDIF |
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366 | ENDIF |
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367 | |
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368 | IF( nbench == 1 ) THEN ! Benchmark |
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369 | SELECT CASE ( cp_cfg ) |
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370 | CASE ( 'gyre' ) ; CALL ctl_warn( ' The Benchmark is activated ' ) |
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371 | CASE DEFAULT ; CALL ctl_stop( ' The Benchmark is based on the GYRE configuration:', & |
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372 | & ' key_gyre must be used or set nbench = 0' ) |
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373 | END SELECT |
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374 | ENDIF |
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375 | |
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376 | IF( nbit_cmp == 1 ) THEN ! Bit compare |
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377 | CALL ctl_warn( ' Bit comparison enabled. Single and multiple processor results must bit compare', & |
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378 | & ' WARNING: RESULTS ARE NOT PHYSICAL.' ) |
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379 | ENDIF |
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380 | |
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381 | REWIND( numnam ) ! Read Namelist namdyn_hpg : ln_dynhpg_imp must be read at the initialisation phase |
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382 | READ ( numnam, namdyn_hpg ) |
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383 | ! |
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384 | END SUBROUTINE opa_flg |
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385 | |
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386 | |
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387 | SUBROUTINE opa_closefile |
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388 | !!---------------------------------------------------------------------- |
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389 | !! *** ROUTINE opa_closefile *** |
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390 | !! |
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391 | !! ** Purpose : Close the files |
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392 | !!---------------------------------------------------------------------- |
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393 | USE dtatem ! temperature data |
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394 | USE dtasal ! salinity data |
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395 | !!---------------------------------------------------------------------- |
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396 | ! |
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397 | IF( lk_mpp ) CALL mppsync |
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398 | ! |
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399 | CALL iom_close ! close all input/output files managed by iom_* |
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400 | ! |
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401 | IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file |
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402 | IF( numsol /= -1 ) CLOSE( numsol ) ! solver file |
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403 | IF( numnam /= -1 ) CLOSE( numnam ) ! oce namelist |
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404 | IF( numnam_ice /= -1 ) CLOSE( numnam_ice ) ! ice namelist |
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405 | IF( numevo_ice /= -1 ) CLOSE( numevo_ice ) ! ice variables (temp. evolution) |
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406 | IF( numout /= 6 ) CLOSE( numout ) ! standard model output file |
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407 | numout = 6 ! redefine numout in case it is used after this point... |
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408 | ! |
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409 | END SUBROUTINE opa_closefile |
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410 | |
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411 | SUBROUTINE opa_northcomms |
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412 | !!====================================================================== |
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413 | !! *** ROUTINE opa_northcomms *** |
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414 | !! opa_northcomms : Setup for north fold exchanges with explicit peer to peer messaging |
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415 | !!===================================================================== |
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416 | !!---------------------------------------------------------------------- |
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417 | !! |
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418 | !! ** Purpose : Initialization of the northern neighbours lists. |
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419 | !!---------------------------------------------------------------------- |
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420 | |
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421 | INTEGER :: ji, jj, jk, ij ! dummy loop indices |
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422 | INTEGER :: ijpj ! ??? |
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423 | INTEGER, DIMENSION (jpi,4,4) :: ifoldnbrs |
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424 | REAL(wp), DIMENSION (jpi,jpj) :: znnbrs ! workspace |
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425 | LOGICAL, DIMENSION (jpnij) :: lrankset ! workspace |
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426 | |
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427 | IF(lwp) WRITE(numout,*) |
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428 | IF(lwp) WRITE(numout,*) 'opa_northcomms : Initialization of the northern neighbours lists' |
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429 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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430 | |
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431 | !!---------------------------------------------------------------------- |
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432 | nsndto = 0 |
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433 | isendto = -1 |
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434 | ijpj = 4 |
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435 | ! |
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436 | ! Exchange and store ranks on northern rows |
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437 | |
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438 | lrankset = .FALSE. |
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439 | znnbrs = narea * tmask(:,:,1) |
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440 | CALL lbc_lnk( znnbrs, 'T', 1. ) |
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441 | |
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442 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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443 | do jj = nlcj-ijpj+1, nlcj |
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444 | ij = jj - nlcj + ijpj |
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445 | ifoldnbrs(:,ij,1) = int(znnbrs(:,jj)) |
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446 | do ji = 1,jpi |
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447 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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448 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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449 | end do |
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450 | end do |
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451 | |
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452 | do jj = 1,jpnij |
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453 | IF (lrankset(jj)) THEN |
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454 | nsndto(1) = nsndto(1) + 1 |
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455 | IF(nsndto(1) .gt. jpmaxngh ) THEN |
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456 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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457 | & ' jpmaxngh will need to be increased ') |
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458 | ENDIF |
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459 | isendto(nsndto(1),1) = jj-1 ! narea converted to MPI rank |
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460 | ENDIF |
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461 | end do |
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462 | ENDIF |
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463 | |
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464 | lrankset = .FALSE. |
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465 | znnbrs = narea * umask(:,:,1) |
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466 | CALL lbc_lnk( znnbrs, 'U', 1. ) |
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467 | |
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468 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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469 | do jj = nlcj-ijpj+1, nlcj |
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470 | ij = jj - nlcj + ijpj |
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471 | ifoldnbrs(:,ij,2) = int(znnbrs(:,jj)) |
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472 | do ji = 1,jpi |
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473 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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474 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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475 | end do |
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476 | end do |
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477 | |
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478 | do jj = 1,jpnij |
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479 | IF (lrankset(jj)) THEN |
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480 | nsndto(2) = nsndto(2) + 1 |
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481 | IF(nsndto(2) .gt. jpmaxngh ) THEN |
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482 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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483 | & ' jpmaxngh will need to be increased ') |
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484 | ENDIF |
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485 | isendto(nsndto(2),2) = jj-1 ! narea converted to MPI rank |
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486 | ENDIF |
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487 | end do |
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488 | ENDIF |
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489 | |
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490 | lrankset = .FALSE. |
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491 | znnbrs = narea * vmask(:,:,1) |
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492 | CALL lbc_lnk( znnbrs, 'V', 1. ) |
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493 | |
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494 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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495 | do jj = nlcj-ijpj+1, nlcj |
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496 | ij = jj - nlcj + ijpj |
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497 | ifoldnbrs(:,ij,3) = int(znnbrs(:,jj)) |
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498 | do ji = 1,jpi |
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499 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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500 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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501 | end do |
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502 | end do |
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503 | |
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504 | do jj = 1,jpnij |
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505 | IF (lrankset(jj)) THEN |
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506 | nsndto(3) = nsndto(3) + 1 |
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507 | IF(nsndto(3) .gt. jpmaxngh ) THEN |
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508 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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509 | & ' jpmaxngh will need to be increased ') |
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510 | ENDIF |
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511 | isendto(nsndto(3),3) = jj-1 ! narea converted to MPI rank |
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512 | ENDIF |
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513 | end do |
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514 | ENDIF |
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515 | |
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516 | lrankset = .FALSE. |
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517 | znnbrs = narea * fmask(:,:,1) |
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518 | ! |
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519 | ! filter top rows to counter any strong slip conditions |
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520 | ! |
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521 | do jj = nlcj-ijpj+1, nlcj |
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522 | do ji = 1,jpi |
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523 | znnbrs(ji,jj) = narea * MIN(1.0,fmask(ji,jj,1)) |
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524 | end do |
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525 | enddo |
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526 | CALL lbc_lnk( znnbrs, 'F', 1. ) |
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527 | |
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528 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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529 | do jj = nlcj-ijpj+1, nlcj |
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530 | ij = jj - nlcj + ijpj |
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531 | ifoldnbrs(:,ij,4) = int(znnbrs(:,jj)) |
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532 | do ji = 1,jpi |
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533 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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534 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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535 | end do |
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536 | end do |
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537 | |
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538 | do jj = 1,jpnij |
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539 | IF (lrankset(jj)) THEN |
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540 | nsndto(4) = nsndto(4) + 1 |
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541 | IF(nsndto(4) .gt. jpmaxngh ) THEN |
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542 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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543 | & ' jpmaxngh will need to be increased ') |
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544 | ENDIF |
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545 | isendto(nsndto(4),4) = jj-1 ! narea converted to MPI rank |
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546 | ENDIF |
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547 | end do |
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548 | |
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549 | lnorth_nogather = .TRUE. |
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550 | ENDIF |
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551 | |
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552 | END SUBROUTINE opa_northcomms |
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553 | !!====================================================================== |
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554 | END MODULE opa |
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