1 | SUBROUTINE swap_timelevel |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2012 Leibniz University Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! calculation of qr and nr is restricted to precipitation |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: swap_timelevel.f90 1115 2013-03-26 18:16:16Z hoffmann $ |
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27 | ! |
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28 | ! 1111 2013-03-08 23:54:10Z raasch |
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29 | ! openACC directives added |
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30 | ! |
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31 | ! 1053 2012-11-13 17:11:03Z hoffmann |
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32 | ! swap of timelevels for nr, qr added |
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33 | ! |
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34 | ! 1036 2012-10-22 13:43:42Z raasch |
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35 | ! code put under GPL (PALM 3.9) |
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36 | ! |
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37 | ! 1032 2012-10-21 13:03:21Z letzel |
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38 | ! save memory by not allocating pt_2 in case of neutral = .T. |
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39 | ! |
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40 | ! 1010 2012-09-20 07:59:54Z raasch |
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41 | ! cpp switch __nopointer added for pointer free version |
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42 | ! |
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43 | ! 1001 2012-09-13 14:08:46Z raasch |
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44 | ! all actions concerning leapfrog scheme removed |
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45 | ! |
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46 | ! 102 2007-07-27 09:09:17Z raasch |
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47 | ! swaping of uswst, vswst included |
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48 | ! |
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49 | ! 95 2007-06-02 16:48:38Z raasch |
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50 | ! Swaping of salinity |
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51 | ! |
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52 | ! 75 2007-03-22 09:54:05Z raasch |
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53 | ! moisture renamed humidity |
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54 | ! |
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55 | ! 19 2007-02-23 04:53:48Z raasch |
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56 | ! Swaping of top fluxes |
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57 | ! |
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58 | ! RCS Log replace by Id keyword, revision history cleaned up |
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59 | ! |
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60 | ! Revision 1.8 2004/01/28 15:28:18 raasch |
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61 | ! Swaping for Runge-Kutta schemes implemented |
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62 | ! |
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63 | ! Revision 1.1 2000/01/10 10:08:58 10:08:58 raasch (Siegfried Raasch) |
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64 | ! Initial revision |
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65 | ! |
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66 | ! |
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67 | ! Description: |
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68 | ! ------------ |
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69 | ! Swap of timelevels of variables after each timestep |
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70 | !------------------------------------------------------------------------------! |
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71 | |
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72 | USE arrays_3d |
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73 | USE cpulog |
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74 | USE interfaces |
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75 | USE control_parameters |
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76 | |
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77 | IMPLICIT NONE |
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78 | |
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79 | ! |
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80 | !-- Incrementing timestep counter |
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81 | timestep_count = timestep_count + 1 |
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82 | |
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83 | ! |
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84 | !-- Swap of variables |
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85 | #if defined( __nopointer ) |
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86 | CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'start' ) |
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87 | |
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88 | !$acc kernels present( pt, pt_p, u, u_p, v, v_p, w, w_p ) |
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89 | u = u_p |
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90 | v = v_p |
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91 | w = w_p |
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92 | pt = pt_p |
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93 | !$acc end kernels |
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94 | IF ( .NOT. constant_diffusion ) THEN |
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95 | !$acc kernels present( e, e_p ) |
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96 | e = e_p |
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97 | !$acc end kernels |
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98 | ENDIF |
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99 | IF ( ocean ) THEN |
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100 | sa = sa_p |
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101 | ENDIF |
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102 | IF ( humidity .OR. passive_scalar ) THEN |
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103 | q = q_p |
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104 | IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN |
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105 | qr = qr_p |
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106 | nr = nr_p |
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107 | ENDIF |
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108 | ENDIF |
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109 | |
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110 | CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'stop' ) |
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111 | #else |
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112 | CALL cpu_log( log_point(28), 'swap_timelevel', 'start' ) |
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113 | |
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114 | SELECT CASE ( MOD( timestep_count, 2 ) ) |
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115 | |
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116 | CASE ( 0 ) |
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117 | |
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118 | u => u_1; u_p => u_2 |
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119 | v => v_1; v_p => v_2 |
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120 | w => w_1; w_p => w_2 |
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121 | IF ( .NOT. neutral ) THEN |
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122 | pt => pt_1; pt_p => pt_2 |
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123 | ENDIF |
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124 | IF ( .NOT. constant_diffusion ) THEN |
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125 | e => e_1; e_p => e_2 |
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126 | ENDIF |
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127 | IF ( ocean ) THEN |
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128 | sa => sa_1; sa_p => sa_2 |
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129 | ENDIF |
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130 | IF ( humidity .OR. passive_scalar ) THEN |
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131 | q => q_1; q_p => q_2 |
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132 | IF ( cloud_physics .AND. icloud_scheme == 0 .AND. & |
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133 | precipitation ) THEN |
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134 | qr => qr_1; qr_p => qr_2 |
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135 | nr => nr_1; nr_p => nr_2 |
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136 | ENDIF |
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137 | ENDIF |
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138 | |
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139 | |
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140 | CASE ( 1 ) |
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141 | |
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142 | u => u_2; u_p => u_1 |
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143 | v => v_2; v_p => v_1 |
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144 | w => w_2; w_p => w_1 |
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145 | IF ( .NOT. neutral ) THEN |
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146 | pt => pt_2; pt_p => pt_1 |
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147 | ENDIF |
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148 | IF ( .NOT. constant_diffusion ) THEN |
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149 | e => e_2; e_p => e_1 |
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150 | ENDIF |
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151 | IF ( ocean ) THEN |
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152 | sa => sa_2; sa_p => sa_1 |
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153 | ENDIF |
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154 | IF ( humidity .OR. passive_scalar ) THEN |
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155 | q => q_2; q_p => q_1 |
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156 | IF ( cloud_physics .AND. icloud_scheme == 0 .AND. & |
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157 | precipitation) THEN |
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158 | qr => qr_2; qr_p => qr_1 |
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159 | nr => nr_2; nr_p => nr_1 |
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160 | ENDIF |
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161 | ENDIF |
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162 | |
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163 | |
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164 | END SELECT |
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165 | |
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166 | CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' ) |
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167 | #endif |
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168 | |
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169 | END SUBROUTINE swap_timelevel |
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170 | |
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171 | |
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