| 1 |
heimbach |
1.1 |
C $Header: /u/gcmpack/MITgcm/pkg/streamice/streamice_init_varia.F,v 1.6 2011/06/29 16:24:10 dng Exp $ |
| 2 |
|
|
C $Name: $ |
| 3 |
|
|
|
| 4 |
|
|
#include "STREAMICE_OPTIONS.h" |
| 5 |
|
|
|
| 6 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 7 |
|
|
|
| 8 |
|
|
CBOP |
| 9 |
|
|
SUBROUTINE STREAMICE_VEL_SOLVE( myThid ) |
| 10 |
|
|
C /============================================================\ |
| 11 |
|
|
C | SUBROUTINE | |
| 12 |
|
|
C | o | |
| 13 |
|
|
C |============================================================| |
| 14 |
|
|
C | | |
| 15 |
|
|
C \============================================================/ |
| 16 |
|
|
IMPLICIT NONE |
| 17 |
|
|
|
| 18 |
|
|
C === Global variables === |
| 19 |
|
|
#include "SIZE.h" |
| 20 |
|
|
#include "EEPARAMS.h" |
| 21 |
|
|
#include "PARAMS.h" |
| 22 |
|
|
#include "STREAMICE.h" |
| 23 |
|
|
#include "STREAMICE_CG.h" |
| 24 |
|
|
|
| 25 |
|
|
C !INPUT/OUTPUT ARGUMENTS |
| 26 |
|
|
INTEGER myThid |
| 27 |
|
|
|
| 28 |
|
|
#ifdef ALLOW_STREAMICE |
| 29 |
|
|
|
| 30 |
|
|
C LOCAL VARIABLES |
| 31 |
|
|
|
| 32 |
|
|
! real, dimension(:,:), pointer :: TAUDX, TAUDY, u_prev_iterate, v_prev_iterate, & |
| 33 |
|
|
! u_bdry_cont, v_bdry_cont, Au, Av, err_u, err_v, & |
| 34 |
|
|
! geolonq, geolatq, u_last, v_last, float_cond, H_node |
| 35 |
|
|
! type(ocean_grid_type), pointer :: G |
| 36 |
|
|
! integer :: conv_flag, i, j, k,l, iter, isym, & |
| 37 |
|
|
! isdq, iedq, jsdq, jedq, isd, ied, jsd, jed, isumstart, jsumstart, nodefloat, nsub |
| 38 |
|
|
! real :: err_max, err_tempu, err_tempv, err_init, area, max_vel, tempu, tempv, rhoi, rhow |
| 39 |
|
|
|
| 40 |
|
|
INTEGER conv_flag, i, j, k, l, iter, cg_iters, bi, bj |
| 41 |
|
|
INTEGER iter_numconv |
| 42 |
|
|
_RL err_max, err_tempu, err_tempv, err_init, area |
| 43 |
|
|
_RL max_vel, tempu, tempv, err_lastchange, cgtol |
| 44 |
|
|
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 45 |
|
|
! _RL taudx (1-OLx:sNx+OLx,1-OLy:sNy+Oly,nSx,nSy) |
| 46 |
|
|
! _RL taudy (1-OLx:sNx+OLx,1-OLy:sNy+Oly,nSx,nSy) |
| 47 |
|
|
|
| 48 |
|
|
CALL STREAMICE_DRIVING_STRESS (myThid) |
| 49 |
|
|
|
| 50 |
|
|
cgtol = streamice_cg_tol |
| 51 |
|
|
|
| 52 |
|
|
! CALL WRITE_FULLARRAY_RL ("taudy_SI",taudy_SI,1,0,0,1,0,myThid) |
| 53 |
|
|
|
| 54 |
|
|
_EXCH_XY_RL ( taudx_SI , myThid ) |
| 55 |
|
|
_EXCH_XY_RL ( taudy_SI , myThid ) |
| 56 |
|
|
|
| 57 |
|
|
! CALL WRITE_FULLARRAY_RL ("taudy_SI_2",taudy_SI,1,0,0,1,0,myThid) |
| 58 |
|
|
|
| 59 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 60 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 61 |
|
|
DO j=1-OLy,sNy+OLy |
| 62 |
|
|
DO i=1-OLx,sNx+OLx |
| 63 |
|
|
u_old_SI (i,j,bi,bj) = U_streamice (i,j,bi,bj) |
| 64 |
|
|
v_old_SI (i,j,bi,bj) = V_streamice (i,j,bi,bj) |
| 65 |
|
|
ENDDO |
| 66 |
|
|
ENDDO |
| 67 |
|
|
ENDDO |
| 68 |
|
|
ENDDO |
| 69 |
|
|
|
| 70 |
|
|
CALL STREAMICE_VISC_BETA ( myThid ) |
| 71 |
|
|
|
| 72 |
|
|
_EXCH_XY_RL ( tau_beta_eff_streamice , myThid ) |
| 73 |
|
|
_EXCH_XY_RL ( visc_streamice , myThid ) |
| 74 |
|
|
|
| 75 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 76 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 77 |
|
|
DO j=1,sNy |
| 78 |
|
|
DO i=1,sNx |
| 79 |
|
|
Au_SI (i,j,bi,bj) = 0. _d 0 |
| 80 |
|
|
Av_SI (i,j,bi,bj) = 0. _d 0 |
| 81 |
|
|
ubd_SI (i,j,bi,bj) = 0. _d 0 |
| 82 |
|
|
vbd_SI (i,j,bi,bj) = 0. _d 0 |
| 83 |
|
|
ENDDO |
| 84 |
|
|
ENDDO |
| 85 |
|
|
ENDDO |
| 86 |
|
|
ENDDO |
| 87 |
|
|
|
| 88 |
|
|
CALL STREAMICE_CG_BOUND_VALS( myThid, |
| 89 |
|
|
O ubd_SI, |
| 90 |
|
|
O vbd_SI) |
| 91 |
|
|
|
| 92 |
|
|
CALL STREAMICE_CG_ACTION( myThid, |
| 93 |
|
|
O Au_SI, |
| 94 |
|
|
O Av_SI, |
| 95 |
|
|
I U_streamice, |
| 96 |
|
|
I V_streamice, |
| 97 |
|
|
I 0, sNx+1, 0, sNy+1 ) |
| 98 |
|
|
|
| 99 |
|
|
err_init = 0. _d 0 |
| 100 |
|
|
err_tempu = 0. _d 0 |
| 101 |
|
|
err_tempv = 0. _d 0 |
| 102 |
|
|
|
| 103 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 104 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 105 |
|
|
DO j=1,sNy |
| 106 |
|
|
DO i=1,sNx |
| 107 |
|
|
IF (STREAMICE_umask(i,j,bi,bj).eq.1) THEN |
| 108 |
|
|
err_tempu = |
| 109 |
|
|
& ABS (Au_SI(i,j,bi,bj)+ubd_SI(i,j,bi,bj) - |
| 110 |
|
|
& taudx_SI(i,j,bi,bj)) |
| 111 |
|
|
ENDIF |
| 112 |
|
|
IF (STREAMICE_vmask(i,j,bi,bj).eq.1) THEN |
| 113 |
|
|
err_tempv = MAX( err_tempu, |
| 114 |
|
|
& ABS (Av_SI(i,j,bi,bj)+vbd_SI(i,j,bi,bj) - |
| 115 |
|
|
& taudy_SI(i,j,bi,bj))) |
| 116 |
|
|
ENDIF |
| 117 |
|
|
IF (err_tempv .ge. err_init) err_init = err_tempv |
| 118 |
|
|
ENDDO |
| 119 |
|
|
ENDDO |
| 120 |
|
|
ENDDO |
| 121 |
|
|
ENDDO |
| 122 |
|
|
|
| 123 |
|
|
CALL GLOBAL_MAX_R8 (err_init, myThid) |
| 124 |
|
|
|
| 125 |
|
|
iter_numconv = 0 |
| 126 |
|
|
err_max = err_init |
| 127 |
|
|
err_lastchange = err_init |
| 128 |
|
|
|
| 129 |
|
|
DO iter=1,streamice_max_nl_iter |
| 130 |
|
|
|
| 131 |
|
|
C To avoid using "exit", loop goes through all iterations |
| 132 |
|
|
C but after convergence loop does nothing |
| 133 |
|
|
|
| 134 |
|
|
IF (err_max .GT. streamice_nonlin_tol * err_init) THEN |
| 135 |
|
|
|
| 136 |
|
|
iter_numconv = iter_numconv + 1 |
| 137 |
|
|
|
| 138 |
|
|
CALL STREAMICE_CG_SOLVE( |
| 139 |
|
|
& U_streamice, |
| 140 |
|
|
& V_streamice, |
| 141 |
|
|
& taudx_SI, |
| 142 |
|
|
& taudy_SI, |
| 143 |
|
|
& myThid , cgtol , cg_iters) |
| 144 |
|
|
|
| 145 |
|
|
|
| 146 |
|
|
|
| 147 |
|
|
WRITE(msgBuf,'(A,I5,A,I4,A)') 'streamice linear solve number', |
| 148 |
|
|
& iter, " ", |
| 149 |
|
|
& cg_iters, |
| 150 |
|
|
& ' iterations ' |
| 151 |
|
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 152 |
|
|
& SQUEEZE_RIGHT , 1) |
| 153 |
|
|
|
| 154 |
|
|
CALL STREAMICE_VISC_BETA ( myThid ) |
| 155 |
|
|
|
| 156 |
|
|
_EXCH_XY_RL ( tau_beta_eff_streamice , myThid ) |
| 157 |
|
|
_EXCH_XY_RL ( visc_streamice , myThid ) |
| 158 |
|
|
|
| 159 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 160 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 161 |
|
|
DO j=1,sNy |
| 162 |
|
|
DO i=1,sNx |
| 163 |
|
|
Au_SI (i,j,bi,bj) = 0. _d 0 |
| 164 |
|
|
Av_SI (i,j,bi,bj) = 0. _d 0 |
| 165 |
|
|
ubd_SI (i,j,bi,bj) = 0. _d 0 |
| 166 |
|
|
vbd_SI (i,j,bi,bj) = 0. _d 0 |
| 167 |
|
|
ENDDO |
| 168 |
|
|
ENDDO |
| 169 |
|
|
ENDDO |
| 170 |
|
|
ENDDO |
| 171 |
|
|
|
| 172 |
|
|
CALL STREAMICE_CG_BOUND_VALS( myThid, |
| 173 |
|
|
O ubd_SI, |
| 174 |
|
|
O vbd_SI) |
| 175 |
|
|
|
| 176 |
|
|
CALL STREAMICE_CG_ACTION( myThid, |
| 177 |
|
|
O Au_SI, |
| 178 |
|
|
O Av_SI, |
| 179 |
|
|
I U_streamice, |
| 180 |
|
|
I V_streamice, |
| 181 |
|
|
I 0, sNx+1, 0, sNy+1 ) |
| 182 |
|
|
|
| 183 |
|
|
err_max = 0. _d 0 |
| 184 |
|
|
err_tempu = 0. _d 0 |
| 185 |
|
|
err_tempv = 0. _d 0 |
| 186 |
|
|
|
| 187 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 188 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 189 |
|
|
DO j=1,sNy |
| 190 |
|
|
DO i=1,sNx |
| 191 |
|
|
IF (STREAMICE_umask(i,j,bi,bj).eq.1) THEN |
| 192 |
|
|
err_tempu = |
| 193 |
|
|
& ABS (Au_SI(i,j,bi,bj)+ubd_SI(i,j,bi,bj) - |
| 194 |
|
|
& taudx_SI(i,j,bi,bj)) |
| 195 |
|
|
ENDIF |
| 196 |
|
|
IF (STREAMICE_vmask(i,j,bi,bj).eq.1) THEN |
| 197 |
|
|
err_tempv = MAX( err_tempu, |
| 198 |
|
|
& ABS (Av_SI(i,j,bi,bj)+vbd_SI(i,j,bi,bj) - |
| 199 |
|
|
& taudy_SI(i,j,bi,bj))) |
| 200 |
|
|
ENDIF |
| 201 |
|
|
IF (err_tempv .ge. err_max) err_max = err_tempv |
| 202 |
|
|
ENDDO |
| 203 |
|
|
ENDDO |
| 204 |
|
|
ENDDO |
| 205 |
|
|
ENDDO |
| 206 |
|
|
|
| 207 |
|
|
CALL GLOBAL_MAX_R8 (err_max, myThid) |
| 208 |
|
|
|
| 209 |
|
|
WRITE(msgBuf,'(A,F11.7)') 'err/err_init', |
| 210 |
|
|
& err_max/err_init |
| 211 |
|
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 212 |
|
|
& SQUEEZE_RIGHT , 1) |
| 213 |
|
|
|
| 214 |
|
|
IF (err_max<err_lastchange*1.e-2 .and. |
| 215 |
|
|
& STREAMICE_lower_cg_tol) THEN |
| 216 |
|
|
cgtol = cgtol * 5.e-2 |
| 217 |
|
|
err_lastchange = err_max |
| 218 |
|
|
WRITE(msgBuf,'(A,F11.7)') 'new cg tol: ', |
| 219 |
|
|
& cgtol |
| 220 |
|
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 221 |
|
|
& SQUEEZE_RIGHT , 1) |
| 222 |
|
|
ENDIF |
| 223 |
|
|
|
| 224 |
|
|
ENDIF ! (err_max .GT. streamice_nonlin_tol * err_init) |
| 225 |
|
|
ENDDO |
| 226 |
|
|
|
| 227 |
|
|
if (iter_numconv .lt. streamice_max_nl_iter) then |
| 228 |
|
|
PRINT *, "VELOCITY SOLVE CONVERGED, ", iter_numconv, |
| 229 |
|
|
& " iterations" |
| 230 |
|
|
else |
| 231 |
|
|
PRINT *, "VELOCITY SOLVE DID NOT CONVERGE IN ", |
| 232 |
|
|
& iter, " iterations" |
| 233 |
|
|
endif |
| 234 |
|
|
|
| 235 |
|
|
_EXCH_XY_RL (U_streamice, myThid) |
| 236 |
|
|
_EXCH_XY_RL (V_streamice, myThid) |
| 237 |
|
|
|
| 238 |
|
|
#endif |
| 239 |
|
|
RETURN |
| 240 |
|
|
END |
| 241 |
|
|
|
Parent Directory
| 
Revision Log
| 
Revision Graph