1 |
cnh |
1.27 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/solve_for_pressure.F,v 1.26 2001/09/19 13:58:08 jmc Exp $ |
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heimbach |
1.21 |
C $Name: $ |
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cnh |
1.1 |
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adcroft |
1.5 |
#include "CPP_OPTIONS.h" |
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cnh |
1.1 |
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cnh |
1.27 |
CBOP |
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C !ROUTINE: SOLVE_FOR_PRESSURE |
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C !INTERFACE: |
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cnh |
1.1 |
SUBROUTINE SOLVE_FOR_PRESSURE( myThid ) |
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cnh |
1.27 |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE SOLVE_FOR_PRESSURE |
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C | o Controls inversion of two and/or three-dimensional |
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C | elliptic problems for the pressure field. |
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C *==========================================================* |
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C \ev |
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C !USES: |
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adcroft |
1.8 |
IMPLICIT NONE |
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cnh |
1.4 |
C == Global variables |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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adcroft |
1.12 |
#include "GRID.h" |
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jmc |
1.17 |
#include "SURFACE.h" |
28 |
adcroft |
1.9 |
#ifdef ALLOW_NONHYDROSTATIC |
29 |
adcroft |
1.25 |
#include "SOLVE_FOR_PRESSURE3D.h" |
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adcroft |
1.9 |
#include "GW.h" |
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adcroft |
1.12 |
#endif |
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adcroft |
1.11 |
#ifdef ALLOW_OBCS |
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adcroft |
1.9 |
#include "OBCS.h" |
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adcroft |
1.11 |
#endif |
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adcroft |
1.22 |
#include "SOLVE_FOR_PRESSURE.h" |
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cnh |
1.4 |
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cnh |
1.27 |
C !INPUT/OUTPUT PARAMETERS: |
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cnh |
1.1 |
C == Routine arguments == |
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C myThid - Number of this instance of SOLVE_FOR_PRESSURE |
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INTEGER myThid |
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cnh |
1.4 |
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cnh |
1.27 |
C !LOCAL VARIABLES: |
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adcroft |
1.22 |
C == Local variables == |
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cnh |
1.6 |
INTEGER i,j,k,bi,bj |
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adcroft |
1.9 |
_RS uf(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RS vf(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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adcroft |
1.22 |
_RL firstResidual,lastResidual |
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adcroft |
1.19 |
INTEGER numIters |
49 |
adcroft |
1.25 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
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cnh |
1.27 |
CEOP |
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jmc |
1.17 |
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C-- Save previous solution & Initialise Vector solution and source term : |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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jmc |
1.26 |
#ifdef INCLUDE_CD_CODE |
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jmc |
1.17 |
etaNm1(i,j,bi,bj) = etaN(i,j,bi,bj) |
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jmc |
1.26 |
#endif |
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jmc |
1.18 |
cg2d_x(i,j,bi,bj) = Bo_surf(i,j,bi,bj)*etaN(i,j,bi,bj) |
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jmc |
1.17 |
cg2d_b(i,j,bi,bj) = 0. |
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#ifdef USE_NATURAL_BCS |
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jmc |
1.18 |
& + freeSurfFac*_rA(i,j,bi,bj)* |
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jmc |
1.17 |
& EmPmR(I,J,bi,bj)/deltaTMom |
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#endif |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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adcroft |
1.12 |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO K=Nr,1,-1 |
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DO j=1,sNy+1 |
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DO i=1,sNx+1 |
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uf(i,j) = _dyG(i,j,bi,bj) |
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& *drF(k)*_hFacW(i,j,k,bi,bj) |
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vf(i,j) = _dxG(i,j,bi,bj) |
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& *drF(k)*_hFacS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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CALL CALC_DIV_GHAT( |
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I bi,bj,1,sNx,1,sNy,K, |
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I uf,vf, |
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jmc |
1.17 |
U cg2d_b, |
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adcroft |
1.12 |
I myThid) |
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ENDDO |
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ENDDO |
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ENDDO |
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cnh |
1.4 |
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adcroft |
1.12 |
C-- Add source term arising from w=d/dt (p_s + p_nh) |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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adcroft |
1.13 |
#ifdef ALLOW_NONHYDROSTATIC |
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adcroft |
1.12 |
DO j=1,sNy |
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DO i=1,sNx |
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cg2d_b(i,j,bi,bj) = cg2d_b(i,j,bi,bj) |
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jmc |
1.18 |
& -freeSurfFac*_rA(i,j,bi,bj)/deltaTMom/deltaTMom |
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& *( etaN(i,j,bi,bj) |
100 |
adcroft |
1.25 |
& +phi_nh(i,j,1,bi,bj)*horiVertRatio/gravity ) |
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adcroft |
1.13 |
cg3d_b(i,j,1,bi,bj) = cg3d_b(i,j,1,bi,bj) |
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jmc |
1.18 |
& -freeSurfFac*_rA(i,j,bi,bj)/deltaTMom/deltaTMom |
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& *( etaN(i,j,bi,bj) |
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adcroft |
1.25 |
& +phi_nh(i,j,1,bi,bj)*horiVertRatio/gravity ) |
105 |
adcroft |
1.12 |
ENDDO |
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ENDDO |
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adcroft |
1.13 |
#else |
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jmc |
1.26 |
IF ( exactConserv ) THEN |
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c IF (nonlinFreeSurf.GT.0) THEN |
110 |
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DO j=1,sNy |
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DO i=1,sNx |
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cg2d_b(i,j,bi,bj) = cg2d_b(i,j,bi,bj) |
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& -freeSurfFac*_rA(i,j,bi,bj)/deltaTMom/deltaTMom |
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& * etaH(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ELSE |
118 |
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DO j=1,sNy |
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DO i=1,sNx |
120 |
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cg2d_b(i,j,bi,bj) = cg2d_b(i,j,bi,bj) |
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& -freeSurfFac*_rA(i,j,bi,bj)/deltaTMom/deltaTMom |
122 |
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& * etaN(i,j,bi,bj) |
123 |
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ENDDO |
124 |
adcroft |
1.12 |
ENDDO |
125 |
jmc |
1.26 |
ENDIF |
126 |
adcroft |
1.12 |
#endif |
127 |
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128 |
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#ifdef ALLOW_OBCS |
129 |
adcroft |
1.14 |
IF (useOBCS) THEN |
130 |
adcroft |
1.12 |
DO i=1,sNx |
131 |
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C Northern boundary |
132 |
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IF (OB_Jn(I,bi,bj).NE.0) THEN |
133 |
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cg2d_b(I,OB_Jn(I,bi,bj),bi,bj)=0. |
134 |
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ENDIF |
135 |
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C Southern boundary |
136 |
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IF (OB_Js(I,bi,bj).NE.0) THEN |
137 |
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cg2d_b(I,OB_Js(I,bi,bj),bi,bj)=0. |
138 |
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ENDIF |
139 |
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ENDDO |
140 |
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DO j=1,sNy |
141 |
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C Eastern boundary |
142 |
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IF (OB_Ie(J,bi,bj).NE.0) THEN |
143 |
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cg2d_b(OB_Ie(J,bi,bj),J,bi,bj)=0. |
144 |
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ENDIF |
145 |
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C Western boundary |
146 |
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IF (OB_Iw(J,bi,bj).NE.0) THEN |
147 |
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cg2d_b(OB_Iw(J,bi,bj),J,bi,bj)=0. |
148 |
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ENDIF |
149 |
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ENDDO |
150 |
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ENDIF |
151 |
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#endif |
152 |
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ENDDO |
153 |
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ENDDO |
154 |
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adcroft |
1.23 |
#ifndef EXCLUDE_DEBUGMODE |
156 |
adcroft |
1.24 |
IF (debugMode) THEN |
157 |
adcroft |
1.23 |
CALL DEBUG_STATS_RL(1,cg2d_b,'cg2d_b (SOLVE_FOR_PRESSURE)', |
158 |
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& myThid) |
159 |
adcroft |
1.24 |
ENDIF |
160 |
adcroft |
1.23 |
#endif |
161 |
adcroft |
1.12 |
|
162 |
cnh |
1.1 |
C-- Find the surface pressure using a two-dimensional conjugate |
163 |
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C-- gradient solver. |
164 |
adcroft |
1.22 |
C see CG2D.h for the interface to this routine. |
165 |
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firstResidual=0. |
166 |
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lastResidual=0. |
167 |
adcroft |
1.19 |
numIters=cg2dMaxIters |
168 |
cnh |
1.1 |
CALL CG2D( |
169 |
adcroft |
1.22 |
U cg2d_b, |
170 |
cnh |
1.6 |
U cg2d_x, |
171 |
adcroft |
1.22 |
O firstResidual, |
172 |
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O lastResidual, |
173 |
adcroft |
1.19 |
U numIters, |
174 |
cnh |
1.1 |
I myThid ) |
175 |
adcroft |
1.19 |
_EXCH_XY_R8(cg2d_x, myThid ) |
176 |
adcroft |
1.23 |
|
177 |
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#ifndef EXCLUDE_DEBUGMODE |
178 |
adcroft |
1.24 |
IF (debugMode) THEN |
179 |
adcroft |
1.23 |
CALL DEBUG_STATS_RL(1,cg2d_x,'cg2d_x (SOLVE_FOR_PRESSURE)', |
180 |
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& myThid) |
181 |
adcroft |
1.24 |
ENDIF |
182 |
adcroft |
1.23 |
#endif |
183 |
cnh |
1.1 |
|
184 |
adcroft |
1.19 |
_BEGIN_MASTER( myThid ) |
185 |
adcroft |
1.25 |
WRITE(msgBuf,'(A34,1PE24.14)') 'cg2d_init_res =',firstResidual |
186 |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
187 |
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WRITE(msgBuf,'(A34,I6)') 'cg2d_iters =',numIters |
188 |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
189 |
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WRITE(msgBuf,'(A34,1PE24.14)') 'cg2d_res =',lastResidual |
190 |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
191 |
adcroft |
1.19 |
_END_MASTER( ) |
192 |
jmc |
1.17 |
|
193 |
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C-- Transfert the 2D-solution to "etaN" : |
194 |
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DO bj=myByLo(myThid),myByHi(myThid) |
195 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
196 |
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DO j=1-OLy,sNy+OLy |
197 |
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DO i=1-OLx,sNx+OLx |
198 |
jmc |
1.18 |
etaN(i,j,bi,bj) = recip_Bo(i,j,bi,bj)*cg2d_x(i,j,bi,bj) |
199 |
jmc |
1.17 |
ENDDO |
200 |
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ENDDO |
201 |
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ENDDO |
202 |
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ENDDO |
203 |
adcroft |
1.10 |
|
204 |
adcroft |
1.9 |
#ifdef ALLOW_NONHYDROSTATIC |
205 |
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IF ( nonHydrostatic ) THEN |
206 |
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207 |
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C-- Solve for a three-dimensional pressure term (NH or IGW or both ). |
208 |
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C see CG3D.h for the interface to this routine. |
209 |
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DO bj=myByLo(myThid),myByHi(myThid) |
210 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
211 |
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DO j=1,sNy+1 |
212 |
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DO i=1,sNx+1 |
213 |
jmc |
1.18 |
uf(i,j)=-_recip_dxC(i,j,bi,bj)* |
214 |
adcroft |
1.9 |
& (cg2d_x(i,j,bi,bj)-cg2d_x(i-1,j,bi,bj)) |
215 |
jmc |
1.18 |
vf(i,j)=-_recip_dyC(i,j,bi,bj)* |
216 |
adcroft |
1.9 |
& (cg2d_x(i,j,bi,bj)-cg2d_x(i,j-1,bi,bj)) |
217 |
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ENDDO |
218 |
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ENDDO |
219 |
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220 |
adcroft |
1.12 |
#ifdef ALLOW_OBCS |
221 |
adcroft |
1.14 |
IF (useOBCS) THEN |
222 |
adcroft |
1.9 |
DO i=1,sNx+1 |
223 |
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C Northern boundary |
224 |
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IF (OB_Jn(I,bi,bj).NE.0) THEN |
225 |
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vf(I,OB_Jn(I,bi,bj))=0. |
226 |
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ENDIF |
227 |
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C Southern boundary |
228 |
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IF (OB_Js(I,bi,bj).NE.0) THEN |
229 |
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vf(I,OB_Js(I,bi,bj)+1)=0. |
230 |
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ENDIF |
231 |
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ENDDO |
232 |
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DO j=1,sNy+1 |
233 |
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C Eastern boundary |
234 |
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IF (OB_Ie(J,bi,bj).NE.0) THEN |
235 |
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uf(OB_Ie(J,bi,bj),J)=0. |
236 |
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ENDIF |
237 |
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C Western boundary |
238 |
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IF (OB_Iw(J,bi,bj).NE.0) THEN |
239 |
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uf(OB_Iw(J,bi,bj)+1,J)=0. |
240 |
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ENDIF |
241 |
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ENDDO |
242 |
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ENDIF |
243 |
adcroft |
1.12 |
#endif |
244 |
adcroft |
1.9 |
|
245 |
adcroft |
1.12 |
K=1 |
246 |
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DO j=1,sNy |
247 |
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DO i=1,sNx |
248 |
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cg3d_b(i,j,k,bi,bj) = cg3d_b(i,j,k,bi,bj) |
249 |
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& +dRF(K)*dYG(i+1,j,bi,bj)*hFacW(i+1,j,k,bi,bj)*uf(i+1,j) |
250 |
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& -dRF(K)*dYG( i ,j,bi,bj)*hFacW( i ,j,k,bi,bj)*uf( i ,j) |
251 |
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& +dRF(K)*dXG(i,j+1,bi,bj)*hFacS(i,j+1,k,bi,bj)*vf(i,j+1) |
252 |
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& -dRF(K)*dXG(i, j ,bi,bj)*hFacS(i, j ,k,bi,bj)*vf(i, j ) |
253 |
jmc |
1.18 |
& +( freeSurfFac*etaN(i,j,bi,bj)/deltaTMom |
254 |
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& -wVel(i,j,k+1,bi,bj) |
255 |
adcroft |
1.12 |
& )*_rA(i,j,bi,bj)/deltaTmom |
256 |
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ENDDO |
257 |
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ENDDO |
258 |
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DO K=2,Nr-1 |
259 |
adcroft |
1.9 |
DO j=1,sNy |
260 |
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DO i=1,sNx |
261 |
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cg3d_b(i,j,k,bi,bj) = cg3d_b(i,j,k,bi,bj) |
262 |
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& +dRF(K)*dYG(i+1,j,bi,bj)*hFacW(i+1,j,k,bi,bj)*uf(i+1,j) |
263 |
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& -dRF(K)*dYG( i ,j,bi,bj)*hFacW( i ,j,k,bi,bj)*uf( i ,j) |
264 |
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& +dRF(K)*dXG(i,j+1,bi,bj)*hFacS(i,j+1,k,bi,bj)*vf(i,j+1) |
265 |
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& -dRF(K)*dXG(i, j ,bi,bj)*hFacS(i, j ,k,bi,bj)*vf(i, j ) |
266 |
adcroft |
1.12 |
& +( wVel(i,j,k ,bi,bj) |
267 |
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& -wVel(i,j,k+1,bi,bj) |
268 |
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& )*_rA(i,j,bi,bj)/deltaTmom |
269 |
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|
270 |
adcroft |
1.9 |
ENDDO |
271 |
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ENDDO |
272 |
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ENDDO |
273 |
adcroft |
1.12 |
K=Nr |
274 |
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DO j=1,sNy |
275 |
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DO i=1,sNx |
276 |
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cg3d_b(i,j,k,bi,bj) = cg3d_b(i,j,k,bi,bj) |
277 |
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& +dRF(K)*dYG(i+1,j,bi,bj)*hFacW(i+1,j,k,bi,bj)*uf(i+1,j) |
278 |
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& -dRF(K)*dYG( i ,j,bi,bj)*hFacW( i ,j,k,bi,bj)*uf( i ,j) |
279 |
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& +dRF(K)*dXG(i,j+1,bi,bj)*hFacS(i,j+1,k,bi,bj)*vf(i,j+1) |
280 |
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& -dRF(K)*dXG(i, j ,bi,bj)*hFacS(i, j ,k,bi,bj)*vf(i, j ) |
281 |
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& +( wVel(i,j,k ,bi,bj) |
282 |
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& )*_rA(i,j,bi,bj)/deltaTmom |
283 |
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284 |
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ENDDO |
285 |
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ENDDO |
286 |
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287 |
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#ifdef ALLOW_OBCS |
288 |
adcroft |
1.14 |
IF (useOBCS) THEN |
289 |
adcroft |
1.12 |
DO K=1,Nr |
290 |
|
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DO i=1,sNx |
291 |
|
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C Northern boundary |
292 |
|
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IF (OB_Jn(I,bi,bj).NE.0) THEN |
293 |
|
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cg3d_b(I,OB_Jn(I,bi,bj),K,bi,bj)=0. |
294 |
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ENDIF |
295 |
|
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C Southern boundary |
296 |
|
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IF (OB_Js(I,bi,bj).NE.0) THEN |
297 |
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cg3d_b(I,OB_Js(I,bi,bj),K,bi,bj)=0. |
298 |
|
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ENDIF |
299 |
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ENDDO |
300 |
|
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DO j=1,sNy |
301 |
|
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C Eastern boundary |
302 |
|
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IF (OB_Ie(J,bi,bj).NE.0) THEN |
303 |
|
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cg3d_b(OB_Ie(J,bi,bj),J,K,bi,bj)=0. |
304 |
|
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ENDIF |
305 |
|
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C Western boundary |
306 |
|
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IF (OB_Iw(J,bi,bj).NE.0) THEN |
307 |
|
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cg3d_b(OB_Iw(J,bi,bj),J,K,bi,bj)=0. |
308 |
|
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ENDIF |
309 |
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ENDDO |
310 |
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ENDDO |
311 |
|
|
ENDIF |
312 |
|
|
#endif |
313 |
adcroft |
1.9 |
|
314 |
|
|
ENDDO ! bi |
315 |
|
|
ENDDO ! bj |
316 |
|
|
|
317 |
adcroft |
1.25 |
firstResidual=0. |
318 |
|
|
lastResidual=0. |
319 |
|
|
numIters=cg2dMaxIters |
320 |
|
|
CALL CG3D( |
321 |
|
|
U cg3d_b, |
322 |
|
|
U phi_nh, |
323 |
|
|
O firstResidual, |
324 |
|
|
O lastResidual, |
325 |
|
|
U numIters, |
326 |
|
|
I myThid ) |
327 |
|
|
_EXCH_XYZ_R8(phi_nh, myThid ) |
328 |
|
|
|
329 |
|
|
_BEGIN_MASTER( myThid ) |
330 |
|
|
WRITE(msgBuf,'(A34,1PE24.14)') 'cg3d_init_res =',firstResidual |
331 |
|
|
CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
332 |
|
|
WRITE(msgBuf,'(A34,I6)') 'cg3d_iters =',numIters |
333 |
|
|
CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
334 |
|
|
WRITE(msgBuf,'(A34,1PE24.14)') 'cg3d_res =',lastResidual |
335 |
|
|
CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
336 |
|
|
_END_MASTER( ) |
337 |
adcroft |
1.9 |
|
338 |
|
|
ENDIF |
339 |
|
|
#endif |
340 |
cnh |
1.1 |
|
341 |
|
|
RETURN |
342 |
|
|
END |