| 17 |
I A_vv, ! section of matrix that multiplies v and projects on v |
I A_vv, ! section of matrix that multiplies v and projects on v |
| 18 |
I tolerance, |
I tolerance, |
| 19 |
O iters, |
O iters, |
| 20 |
|
I maxIter, |
| 21 |
I myThid ) |
I myThid ) |
| 22 |
C /============================================================\ |
C /============================================================\ |
| 23 |
C | SUBROUTINE | |
C | SUBROUTINE | |
| 27 |
C \============================================================/ |
C \============================================================/ |
| 28 |
IMPLICIT NONE |
IMPLICIT NONE |
| 29 |
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C === Global variables === |
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| 30 |
#include "SIZE.h" |
#include "SIZE.h" |
| 31 |
#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
| 32 |
#include "PARAMS.h" |
#include "PARAMS.h" |
| 33 |
#include "STREAMICE.h" |
#include "STREAMICE.h" |
| 34 |
#include "STREAMICE_CG.h" |
#include "STREAMICE_CG.h" |
| 35 |
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| 36 |
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| 37 |
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| 38 |
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!#ifdef ALLOW_PETSC |
| 39 |
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!#include "finclude/petsc.h" |
| 40 |
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! UNCOMMENT IF V3.0 |
| 41 |
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!#include "finclude/petscvec.h" |
| 42 |
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!#include "finclude/petscmat.h" |
| 43 |
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!#include "finclude/petscksp.h" |
| 44 |
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!#include "finclude/petscpc.h" |
| 45 |
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!#endif |
| 46 |
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C === Global variables === |
| 47 |
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| 48 |
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| 49 |
C !INPUT/OUTPUT ARGUMENTS |
C !INPUT/OUTPUT ARGUMENTS |
| 50 |
C cg_Uin, cg_Vin - input and output velocities |
C cg_Uin, cg_Vin - input and output velocities |
| 51 |
C cg_Bu, cg_Bv - driving stress |
C cg_Bu, cg_Bv - driving stress |
| 52 |
INTEGER myThid |
INTEGER myThid |
| 53 |
INTEGER iters |
INTEGER iters |
| 54 |
|
INTEGER maxIter |
| 55 |
_RL tolerance |
_RL tolerance |
| 56 |
_RL cg_Uin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RL cg_Uin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 57 |
_RL cg_Vin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RL cg_Vin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 71 |
_RL dot_p2_tile (nSx,nSy) |
_RL dot_p2_tile (nSx,nSy) |
| 72 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 73 |
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| 74 |
iters = streamice_max_cg_iter |
|
| 75 |
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!#ifdef ALLOW_PETSC |
| 76 |
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! INTEGER indices(2*(snx*nsx*sny*nsy)) |
| 77 |
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! INTEGER n_dofs_cum_sum (0:nPx*nPy-1), idx(1) |
| 78 |
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! _RL rhs_values(2*(snx*nsx*sny*nsy)) |
| 79 |
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! _RL solution_values(2*(snx*nsx*sny*nsy)) |
| 80 |
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! _RL mat_values (2*Nx*Ny,2*(snx*nsx*sny*nsy)) |
| 81 |
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! _RL mat_values (18,1), mat_val_return(1) |
| 82 |
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! INTEGER indices_col(18) |
| 83 |
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! INTEGER local_dofs, global_dofs, dof_index, dof_index_col |
| 84 |
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! INTEGER local_offset |
| 85 |
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! Mat matrix |
| 86 |
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! KSP ksp |
| 87 |
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! PC pc |
| 88 |
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! Vec rhs |
| 89 |
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! Vec solution |
| 90 |
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! PetscErrorCode ierr |
| 91 |
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!#ifdef ALLOW_USE_MPI |
| 92 |
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! integer mpiRC, mpiMyWid |
| 93 |
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!#endif |
| 94 |
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!#endif |
| 95 |
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| 96 |
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| 97 |
#ifdef ALLOW_STREAMICE |
#ifdef ALLOW_STREAMICE |
| 98 |
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| 99 |
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| 100 |
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| 101 |
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CALL TIMER_START ('STREAMICE_CG_SOLVE',myThid) |
| 102 |
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#ifndef STREAMICE_SERIAL_TRISOLVE |
| 103 |
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| 104 |
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#ifdef ALLOW_PETSC |
| 105 |
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| 106 |
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CALL STREAMICE_CG_SOLVE_PETSC( |
| 107 |
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U cg_Uin, ! x-velocities |
| 108 |
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U cg_Vin, ! y-velocities |
| 109 |
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I cg_Bu, ! force in x dir |
| 110 |
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I cg_Bv, ! force in y dir |
| 111 |
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I A_uu, ! section of matrix that multiplies u and projects on u |
| 112 |
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I A_uv, ! section of matrix that multiplies v and projects on u |
| 113 |
|
I A_vu, ! section of matrix that multiplies u and projects on v |
| 114 |
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I A_vv, ! section of matrix that multiplies v and projects on v |
| 115 |
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I tolerance, |
| 116 |
|
I maxIter, |
| 117 |
|
O iters, |
| 118 |
|
I myThid ) |
| 119 |
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| 120 |
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| 121 |
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#else /* ALLOW_PETSC */ |
| 122 |
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| 123 |
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| 124 |
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iters = maxIter |
| 125 |
conv_flag = 0 |
conv_flag = 0 |
| 126 |
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|
| 127 |
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| 193 |
ENDDO |
ENDDO |
| 194 |
ENDDO |
ENDDO |
| 195 |
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| 196 |
DO bj = myByLo(myThid), myByHi(myThid) |
DO bj = myByLo(myThid), myByHi(myThid) |
| 197 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 198 |
DO j=1,sNy |
DO j=1,sNy |
| 206 |
ENDDO |
ENDDO |
| 207 |
ENDDO |
ENDDO |
| 208 |
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|
| 209 |
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|
| 210 |
CALL GLOBAL_SUM_TILE_RL( dot_p1_tile, dot_p1, myThid ) |
CALL GLOBAL_SUM_TILE_RL( dot_p1_tile, dot_p1, myThid ) |
| 211 |
resid_0 = sqrt(dot_p1) |
resid_0 = sqrt(dot_p1) |
| 212 |
|
|
| 213 |
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 214 |
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 215 |
|
|
| 216 |
|
WRITE(msgBuf,'(A,I1,I1,E14.7)') 'CONJ GRAD INIT RESID LOCAL, ', |
| 217 |
|
& bi,bj, dot_p1_tile(bi,bj) |
| 218 |
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 219 |
|
& SQUEEZE_RIGHT , 1) |
| 220 |
|
|
| 221 |
|
enddo |
| 222 |
|
enddo |
| 223 |
|
|
| 224 |
WRITE(msgBuf,'(A,E14.7)') 'CONJ GRAD INIT RESID, ', |
WRITE(msgBuf,'(A,E14.7)') 'CONJ GRAD INIT RESID, ', |
| 225 |
& resid_0 |
& resid_0 |
| 226 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 269 |
|
|
| 270 |
c ! initially, b-grid data is valid up to 3 halo nodes out -- right? (check for MITgcm!!) |
c ! initially, b-grid data is valid up to 3 halo nodes out -- right? (check for MITgcm!!) |
| 271 |
|
|
| 272 |
print *, "BEGINNING MAIN CG LOOP" |
WRITE(msgBuf,'(A)') 'BEGINNING MAIN CG LOOP' |
| 273 |
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 274 |
|
& SQUEEZE_RIGHT , 1) |
| 275 |
|
|
| 276 |
! IF(STREAMICE_construct_matrix) CALL STREAMICE_CG_MAKE_A(myThid) |
! IF(STREAMICE_construct_matrix) CALL STREAMICE_CG_MAKE_A(myThid) |
| 277 |
|
|
| 278 |
|
|
| 279 |
do iter = 1, streamice_max_cg_iter |
do iter = 1, maxIter |
| 280 |
if (resid .gt. tolerance*resid_0) then |
if (resid .gt. tolerance*resid_0) then |
| 281 |
|
|
| 282 |
c to avoid using "exit" |
c to avoid using "exit" |
| 500 |
c to avoid using "exit" |
c to avoid using "exit" |
| 501 |
c if iters has reached max_iters there is no convergence |
c if iters has reached max_iters there is no convergence |
| 502 |
|
|
| 503 |
IF (iters .lt. streamice_max_cg_iter) THEN |
IF (iters .lt. maxIter) THEN |
| 504 |
conv_flag = 1 |
conv_flag = 1 |
| 505 |
ENDIF |
ENDIF |
| 506 |
|
|
| 520 |
! _EXCH_XY_RL( cg_Uin, myThid ) |
! _EXCH_XY_RL( cg_Uin, myThid ) |
| 521 |
! _EXCH_XY_RL( cg_Vin, myThid ) |
! _EXCH_XY_RL( cg_Vin, myThid ) |
| 522 |
|
|
| 523 |
#endif |
#endif /* ifndef ALLOW_PETSC */ |
|
RETURN |
|
|
END |
|
| 524 |
|
|
| 525 |
|
#else /* STREAMICE_SERIAL_TRISOLVE */ |
| 526 |
|
|
| 527 |
|
iters = 0 |
| 528 |
|
|
| 529 |
|
CALL STREAMICE_TRIDIAG_SOLVE( |
| 530 |
|
U cg_Uin, ! x-velocities |
| 531 |
|
U cg_Vin, |
| 532 |
|
U cg_Bu, ! force in x dir |
| 533 |
|
I A_uu, ! section of matrix that multiplies u and projects on u |
| 534 |
|
I STREAMICE_umask, |
| 535 |
|
I myThid ) |
| 536 |
|
|
| 537 |
|
#endif |
| 538 |
|
|
| 539 |
|
CALL TIMER_STOP ('STREAMICE_CG_SOLVE',myThid) |
| 540 |
|
|
| 541 |
|
|
| 542 |
|
#endif |
| 543 |
|
RETURN |
| 544 |
|
END |