| 1 |
jmc |
1.26 |
C $Header: /u/gcmpack/MITgcm/model/src/impldiff.F,v 1.25 2005/09/11 20:54:20 jmc Exp $ |
| 2 |
cnh |
1.17 |
C $Name: $ |
| 3 |
adcroft |
1.1 |
|
| 4 |
jmc |
1.23 |
#include "PACKAGES_CONFIG.h" |
| 5 |
cnh |
1.7 |
#include "CPP_OPTIONS.h" |
| 6 |
adcroft |
1.1 |
|
| 7 |
cnh |
1.17 |
CBOP |
| 8 |
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C !ROUTINE: IMPLDIFF |
| 9 |
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C !INTERFACE: |
| 10 |
adcroft |
1.1 |
SUBROUTINE IMPLDIFF( bi, bj, iMin, iMax, jMin, jMax, |
| 11 |
jmc |
1.23 |
I tracerId, KappaRX, recip_hFac, |
| 12 |
adcroft |
1.8 |
U gXNm1, |
| 13 |
adcroft |
1.1 |
I myThid ) |
| 14 |
cnh |
1.17 |
C !DESCRIPTION: \bv |
| 15 |
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C *==========================================================* |
| 16 |
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C | S/R IMPLDIFF |
| 17 |
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C | o Solve implicit diffusion equation for vertical |
| 18 |
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C | diffusivity. |
| 19 |
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C *==========================================================* |
| 20 |
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C | o Recoded from 2d intermediate fields to 3d to reduce |
| 21 |
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C | TAMC storage |
| 22 |
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C | o Fixed missing masks for fields a(), c() |
| 23 |
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C *==========================================================* |
| 24 |
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C \ev |
| 25 |
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| 26 |
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C !USES: |
| 27 |
cnh |
1.5 |
IMPLICIT NONE |
| 28 |
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C == Global data == |
| 29 |
adcroft |
1.1 |
#include "SIZE.h" |
| 30 |
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#include "DYNVARS.h" |
| 31 |
cnh |
1.2 |
#include "EEPARAMS.h" |
| 32 |
adcroft |
1.1 |
#include "PARAMS.h" |
| 33 |
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#include "GRID.h" |
| 34 |
heimbach |
1.9 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 35 |
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#include "tamc_keys.h" |
| 36 |
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#endif |
| 37 |
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| 38 |
cnh |
1.17 |
C !INPUT/OUTPUT PARAMETERS: |
| 39 |
adcroft |
1.1 |
C == Routine Arguments == |
| 40 |
jmc |
1.23 |
C tracerId :: tracer Identificator (if > 0) ; |
| 41 |
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C = 0 or < 0 when solving vertical viscosity implicitly for U or V |
| 42 |
adcroft |
1.1 |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
| 43 |
jmc |
1.23 |
INTEGER tracerId |
| 44 |
adcroft |
1.8 |
_RL KappaRX(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 45 |
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_RS recip_hFac(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
| 46 |
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_RL gXnm1(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
| 47 |
adcroft |
1.1 |
INTEGER myThid |
| 48 |
cnh |
1.5 |
|
| 49 |
cnh |
1.17 |
C !LOCAL VARIABLES: |
| 50 |
adcroft |
1.1 |
C == Local variables == |
| 51 |
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INTEGER i,j,k |
| 52 |
jmc |
1.23 |
_RL deltaTX(Nr) |
| 53 |
cnh |
1.17 |
_RL gYnm1(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
| 54 |
heimbach |
1.12 |
_RL a(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 55 |
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_RL b(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 56 |
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_RL c(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 57 |
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_RL bet(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 58 |
cnh |
1.6 |
_RL gam(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
| 59 |
jmc |
1.23 |
#ifdef ALLOW_DIAGNOSTICS |
| 60 |
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CHARACTER*8 diagName |
| 61 |
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CHARACTER*4 diagSufx |
| 62 |
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#ifdef ALLOW_GENERIC_ADVDIFF |
| 63 |
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CHARACTER*4 GAD_DIAG_SUFX |
| 64 |
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EXTERNAL GAD_DIAG_SUFX |
| 65 |
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#endif |
| 66 |
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LOGICAL DIAGNOSTICS_IS_ON |
| 67 |
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EXTERNAL DIAGNOSTICS_IS_ON |
| 68 |
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_RL df (1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
| 69 |
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#endif /* ALLOW_DIAGNOSTICS */ |
| 70 |
cnh |
1.17 |
CEOP |
| 71 |
jmc |
1.19 |
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| 72 |
heimbach |
1.21 |
cph( |
| 73 |
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cph Not good for TAF: may create irreducible control flow graph |
| 74 |
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cph IF (Nr.LE.1) RETURN |
| 75 |
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cph) |
| 76 |
adcroft |
1.1 |
|
| 77 |
jmc |
1.23 |
IF ( tracerId.GE.1 ) THEN |
| 78 |
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DO k=1,Nr |
| 79 |
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deltaTX(k) = dTtracerLev(k) |
| 80 |
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ENDDO |
| 81 |
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ELSE |
| 82 |
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DO k=1,Nr |
| 83 |
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deltaTX(k) = deltaTmom |
| 84 |
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ENDDO |
| 85 |
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ENDIF |
| 86 |
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| 87 |
heimbach |
1.12 |
C-- Initialise |
| 88 |
heimbach |
1.16 |
DO k=1,Nr |
| 89 |
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DO j=jMin,jMax |
| 90 |
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DO i=iMin,iMax |
| 91 |
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gYNm1(i,j,k,bi,bj) = 0. _d 0 |
| 92 |
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ENDDO |
| 93 |
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ENDDO |
| 94 |
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ENDDO |
| 95 |
heimbach |
1.12 |
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| 96 |
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C-- Old aLower |
| 97 |
heimbach |
1.14 |
DO j=jMin,jMax |
| 98 |
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DO i=iMin,iMax |
| 99 |
heimbach |
1.12 |
a(i,j,1) = 0. _d 0 |
| 100 |
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ENDDO |
| 101 |
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ENDDO |
| 102 |
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DO k=2,Nr |
| 103 |
heimbach |
1.14 |
DO j=jMin,jMax |
| 104 |
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DO i=iMin,iMax |
| 105 |
jmc |
1.23 |
a(i,j,k) = -deltaTX(k)*recip_hFac(i,j,k,bi,bj)*recip_drF(k) |
| 106 |
jmc |
1.26 |
& *recip_deepFac2C(k)*recip_rhoFacC(k) |
| 107 |
heimbach |
1.12 |
& *KappaRX(i,j, k )*recip_drC( k ) |
| 108 |
jmc |
1.26 |
& *deepFac2F(k)*rhoFacF(k) |
| 109 |
mlosch |
1.18 |
IF (recip_hFac(i,j,k-1,bi,bj).EQ.0.) a(i,j,k)=0. |
| 110 |
heimbach |
1.12 |
ENDDO |
| 111 |
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ENDDO |
| 112 |
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ENDDO |
| 113 |
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| 114 |
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C-- Old aUpper |
| 115 |
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DO k=1,Nr-1 |
| 116 |
heimbach |
1.14 |
DO j=jMin,jMax |
| 117 |
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DO i=iMin,iMax |
| 118 |
jmc |
1.23 |
c(i,j,k) = -deltaTX(k)*recip_hFac(i,j,k,bi,bj)*recip_drF(k) |
| 119 |
jmc |
1.26 |
& *recip_deepFac2C(k)*recip_rhoFacC(k) |
| 120 |
heimbach |
1.12 |
& *KappaRX(i,j,k+1)*recip_drC(k+1) |
| 121 |
jmc |
1.26 |
& *deepFac2F(k+1)*rhoFacF(k+1) |
| 122 |
adcroft |
1.13 |
IF (recip_hFac(i,j,k+1,bi,bj).EQ.0.) c(i,j,k)=0. |
| 123 |
heimbach |
1.12 |
ENDDO |
| 124 |
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ENDDO |
| 125 |
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ENDDO |
| 126 |
heimbach |
1.14 |
DO j=jMin,jMax |
| 127 |
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DO i=iMin,iMax |
| 128 |
heimbach |
1.12 |
c(i,j,Nr) = 0. _d 0 |
| 129 |
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ENDDO |
| 130 |
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ENDDO |
| 131 |
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| 132 |
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C-- Old aCenter |
| 133 |
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DO k=1,Nr |
| 134 |
heimbach |
1.14 |
DO j=jMin,jMax |
| 135 |
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DO i=iMin,iMax |
| 136 |
heimbach |
1.12 |
b(i,j,k) = 1. _d 0 - c(i,j,k) - a(i,j,k) |
| 137 |
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ENDDO |
| 138 |
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ENDDO |
| 139 |
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ENDDO |
| 140 |
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| 141 |
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C-- Old and new gam, bet are the same |
| 142 |
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DO k=1,Nr |
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heimbach |
1.14 |
DO j=jMin,jMax |
| 144 |
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DO i=iMin,iMax |
| 145 |
jmc |
1.22 |
bet(i,j,k) = 1. _d 0 |
| 146 |
heimbach |
1.12 |
gam(i,j,k) = 0. _d 0 |
| 147 |
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ENDDO |
| 148 |
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ENDDO |
| 149 |
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ENDDO |
| 150 |
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| 151 |
heimbach |
1.10 |
C-- Only need do anything if Nr>1 |
| 152 |
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IF (Nr.GT.1) THEN |
| 153 |
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| 154 |
heimbach |
1.12 |
k = 1 |
| 155 |
cnh |
1.5 |
C-- Beginning of forward sweep (top level) |
| 156 |
adcroft |
1.1 |
DO j=jMin,jMax |
| 157 |
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DO i=iMin,iMax |
| 158 |
heimbach |
1.12 |
IF (b(i,j,1).NE.0.) bet(i,j,1) = 1. _d 0 / b(i,j,1) |
| 159 |
adcroft |
1.1 |
ENDDO |
| 160 |
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ENDDO |
| 161 |
heimbach |
1.10 |
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| 162 |
adcroft |
1.1 |
ENDIF |
| 163 |
heimbach |
1.9 |
|
| 164 |
cnh |
1.5 |
C-- Middle of forward sweep |
| 165 |
jmc |
1.20 |
IF (Nr.GE.2) THEN |
| 166 |
heimbach |
1.10 |
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| 167 |
heimbach |
1.12 |
CADJ loop = sequential |
| 168 |
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DO k=2,Nr |
| 169 |
heimbach |
1.9 |
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| 170 |
adcroft |
1.1 |
DO j=jMin,jMax |
| 171 |
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DO i=iMin,iMax |
| 172 |
heimbach |
1.12 |
gam(i,j,k) = c(i,j,k-1)*bet(i,j,k-1) |
| 173 |
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IF ( ( b(i,j,k) - a(i,j,k)*gam(i,j,k) ) .NE. 0.) |
| 174 |
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& bet(i,j,k) = 1. _d 0 / ( b(i,j,k) - a(i,j,k)*gam(i,j,k) ) |
| 175 |
adcroft |
1.1 |
ENDDO |
| 176 |
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ENDDO |
| 177 |
heimbach |
1.9 |
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| 178 |
adcroft |
1.1 |
ENDDO |
| 179 |
heimbach |
1.10 |
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| 180 |
adcroft |
1.1 |
ENDIF |
| 181 |
heimbach |
1.10 |
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| 182 |
heimbach |
1.11 |
|
| 183 |
heimbach |
1.12 |
DO j=jMin,jMax |
| 184 |
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DO i=iMin,iMax |
| 185 |
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gYNm1(i,j,1,bi,bj) = gXNm1(i,j,1,bi,bj)*bet(i,j,1) |
| 186 |
heimbach |
1.10 |
ENDDO |
| 187 |
heimbach |
1.12 |
ENDDO |
| 188 |
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DO k=2,Nr |
| 189 |
heimbach |
1.10 |
DO j=jMin,jMax |
| 190 |
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DO i=iMin,iMax |
| 191 |
heimbach |
1.12 |
gYnm1(i,j,k,bi,bj) = bet(i,j,k)* |
| 192 |
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& (gXnm1(i,j,k,bi,bj) - a(i,j,k)*gYnm1(i,j,k-1,bi,bj)) |
| 193 |
heimbach |
1.9 |
ENDDO |
| 194 |
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ENDDO |
| 195 |
heimbach |
1.12 |
ENDDO |
| 196 |
heimbach |
1.9 |
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| 197 |
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| 198 |
heimbach |
1.12 |
C-- Backward sweep |
| 199 |
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CADJ loop = sequential |
| 200 |
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DO k=Nr-1,1,-1 |
| 201 |
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DO j=jMin,jMax |
| 202 |
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DO i=iMin,iMax |
| 203 |
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gYnm1(i,j,k,bi,bj)=gYnm1(i,j,k,bi,bj) |
| 204 |
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& -gam(i,j,k+1)*gYnm1(i,j,k+1,bi,bj) |
| 205 |
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ENDDO |
| 206 |
adcroft |
1.1 |
ENDDO |
| 207 |
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ENDDO |
| 208 |
heimbach |
1.9 |
|
| 209 |
heimbach |
1.12 |
DO k=1,Nr |
| 210 |
adcroft |
1.1 |
DO j=jMin,jMax |
| 211 |
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DO i=iMin,iMax |
| 212 |
heimbach |
1.12 |
gXnm1(i,j,k,bi,bj)=gYnm1(i,j,k,bi,bj) |
| 213 |
adcroft |
1.1 |
ENDDO |
| 214 |
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ENDDO |
| 215 |
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ENDDO |
| 216 |
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| 217 |
jmc |
1.23 |
#ifdef ALLOW_DIAGNOSTICS |
| 218 |
jmc |
1.25 |
IF ( useDiagnostics .AND.tracerId.NE.0 ) THEN |
| 219 |
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IF ( tracerId.GE. 1 ) THEN |
| 220 |
jmc |
1.23 |
C-- Set diagnostic suffix for the current tracer |
| 221 |
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#ifdef ALLOW_GENERIC_ADVDIFF |
| 222 |
jmc |
1.25 |
diagSufx = GAD_DIAG_SUFX( tracerId, myThid ) |
| 223 |
jmc |
1.23 |
#else |
| 224 |
jmc |
1.25 |
diagSufx = 'aaaa' |
| 225 |
jmc |
1.23 |
#endif |
| 226 |
jmc |
1.25 |
diagName = 'DFrI'//diagSufx |
| 227 |
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ELSEIF ( tracerId.EQ. -1 ) THEN |
| 228 |
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diagName = 'VISrI_Um' |
| 229 |
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ELSEIF ( tracerId.EQ. -2 ) THEN |
| 230 |
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diagName = 'VISrI_Vm' |
| 231 |
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ELSE |
| 232 |
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STOP 'IMPLIDIFF: should never reach this point !' |
| 233 |
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ENDIF |
| 234 |
jmc |
1.23 |
IF ( DIAGNOSTICS_IS_ON(diagName,myThid) ) THEN |
| 235 |
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DO k= 1,Nr |
| 236 |
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IF ( k.EQ.1 ) THEN |
| 237 |
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C- Note: Needs to call DIAGNOSTICS_FILL at level k=1 even if array == 0 |
| 238 |
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C otherwise counter is not incremented !! |
| 239 |
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DO j=1-OLy,sNy+OLy |
| 240 |
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DO i=1-OLx,sNx+OLx |
| 241 |
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df(i,j) = 0. _d 0 |
| 242 |
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ENDDO |
| 243 |
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ENDDO |
| 244 |
jmc |
1.25 |
ELSEIF ( tracerId.GE.1 ) THEN |
| 245 |
jmc |
1.23 |
DO j=1,sNy |
| 246 |
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DO i=1,sNx |
| 247 |
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df(i,j) = |
| 248 |
jmc |
1.26 |
& -rA(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k) |
| 249 |
jmc |
1.25 |
& * KappaRX(i,j,k)*recip_drC(k) |
| 250 |
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& * (gXnm1(i,j,k,bi,bj) - gXnm1(i,j,k-1,bi,bj))*rkSign |
| 251 |
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ENDDO |
| 252 |
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ENDDO |
| 253 |
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ELSEIF ( tracerId.EQ.-1 ) THEN |
| 254 |
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DO j=1,sNy |
| 255 |
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DO i=1,sNx+1 |
| 256 |
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df(i,j) = |
| 257 |
jmc |
1.26 |
& -rAw(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k) |
| 258 |
jmc |
1.25 |
& * KappaRX(i,j,k)*recip_drC(k) |
| 259 |
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& * (gXnm1(i,j,k,bi,bj) - gXnm1(i,j,k-1,bi,bj))*rkSign |
| 260 |
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& * _maskW(i,j,k,bi,bj) |
| 261 |
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& * _maskW(i,j,k-1,bi,bj) |
| 262 |
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ENDDO |
| 263 |
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ENDDO |
| 264 |
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ELSEIF ( tracerId.EQ.-2 ) THEN |
| 265 |
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DO j=1,sNy+1 |
| 266 |
|
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DO i=1,sNx |
| 267 |
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df(i,j) = |
| 268 |
jmc |
1.26 |
& -rAs(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k) |
| 269 |
jmc |
1.23 |
& * KappaRX(i,j,k)*recip_drC(k) |
| 270 |
jmc |
1.25 |
& * (gXnm1(i,j,k,bi,bj) - gXnm1(i,j,k-1,bi,bj))*rkSign |
| 271 |
|
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& * _maskS(i,j,k,bi,bj) |
| 272 |
|
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& * _maskS(i,j,k-1,bi,bj) |
| 273 |
jmc |
1.23 |
ENDDO |
| 274 |
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ENDDO |
| 275 |
|
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ENDIF |
| 276 |
jmc |
1.24 |
CALL DIAGNOSTICS_FILL(df,diagName, k,1, 2,bi,bj, myThid) |
| 277 |
jmc |
1.23 |
ENDDO |
| 278 |
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ENDIF |
| 279 |
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ENDIF |
| 280 |
|
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#endif /* ALLOW_DIAGNOSTICS */ |
| 281 |
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| 282 |
adcroft |
1.1 |
RETURN |
| 283 |
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END |
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