| 1 |
dgoldberg |
1.1 |
C $Header: /u/gcmpack/MITgcm/pkg/streamice/streamice_cg_solve_petsc.F,v 1.5 2015/06/15 14:34:38 dgoldberg Exp $ |
| 2 |
|
|
C $Name: $ |
| 3 |
|
|
|
| 4 |
|
|
#include "CPP_OPTIONS.h" |
| 5 |
|
|
|
| 6 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 7 |
|
|
|
| 8 |
|
|
CBOP |
| 9 |
|
|
SUBROUTINE CG3D_PETSC( |
| 10 |
|
|
U cg3d_x, ! solution vector |
| 11 |
|
|
U cg3d_b, ! rhs |
| 12 |
|
|
I tolerance, |
| 13 |
|
|
U maxIter, |
| 14 |
|
|
I myIter, |
| 15 |
|
|
I myThid ) |
| 16 |
|
|
|
| 17 |
|
|
C /============================================================\ |
| 18 |
|
|
C | SUBROUTINE | |
| 19 |
|
|
C | o | |
| 20 |
|
|
C |============================================================| |
| 21 |
|
|
C | | |
| 22 |
|
|
C \============================================================/ |
| 23 |
|
|
IMPLICIT NONE |
| 24 |
|
|
|
| 25 |
|
|
#include "SIZE.h" |
| 26 |
|
|
#include "EEPARAMS.h" |
| 27 |
|
|
#include "PARAMS.h" |
| 28 |
|
|
#include "CG3D.h" |
| 29 |
|
|
|
| 30 |
|
|
#ifdef ALLOW_PETSC |
| 31 |
|
|
#include "finclude/petsc.h" |
| 32 |
|
|
#include "CG3D_PETSC.h" |
| 33 |
|
|
! UNCOMMENT IF V3.0 |
| 34 |
|
|
!#include "finclude/petscvec.h" |
| 35 |
|
|
!#include "finclude/petscmat.h" |
| 36 |
|
|
!#include "finclude/petscksp.h" |
| 37 |
|
|
!#include "finclude/petscpc.h" |
| 38 |
|
|
#endif |
| 39 |
|
|
C === Global variables === |
| 40 |
|
|
|
| 41 |
|
|
|
| 42 |
|
|
C !INPUT/OUTPUT ARGUMENTS |
| 43 |
|
|
C cg_Uin, cg_Vin - input and output velocities |
| 44 |
|
|
C cg_Bu, cg_Bv - driving stress |
| 45 |
|
|
INTEGER myThid |
| 46 |
|
|
INTEGER maxiter |
| 47 |
|
|
INTEGER myIter |
| 48 |
|
|
_RL tolerance |
| 49 |
|
|
_RL cg3d_x (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 50 |
|
|
_RL cg3d_b (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 51 |
|
|
|
| 52 |
|
|
|
| 53 |
|
|
C LOCAL VARIABLES |
| 54 |
|
|
INTEGER i, j, bi, bj, cg_halo, conv_flag |
| 55 |
|
|
INTEGER iter, col_iter, k |
| 56 |
|
|
_RL dot_p1, dot_p2, alpha_k, beta_k, resid, resid_0 |
| 57 |
|
|
_RL dot_p1_tile (nSx,nSy) |
| 58 |
|
|
_RL dot_p2_tile (nSx,nSy) |
| 59 |
|
|
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 60 |
|
|
! LOGICAL create_mat, destroy_mat |
| 61 |
|
|
|
| 62 |
|
|
|
| 63 |
|
|
#ifdef ALLOW_PETSC |
| 64 |
|
|
INTEGER indices(Nr*(snx*nsx*sny*nsy)) |
| 65 |
|
|
INTEGER cg3d_dofs_cum_sum (0:nPx*nPy*MAX_CG3D_PETSC_CPUINVERT-1), |
| 66 |
|
|
& idx(1) |
| 67 |
|
|
_RL rhs_values(Nr*(snx*nsx*sny*nsy)) |
| 68 |
|
|
_RL solution_values(Nr*(snx*nsx*sny*nsy)) |
| 69 |
|
|
_RL mat_values (7,1), mat_val_return(1) |
| 70 |
|
|
INTEGER indices_col(7) |
| 71 |
|
|
INTEGER local_dofs, global_dofs, dof_index, dof_index_col |
| 72 |
|
|
INTEGER local_offset |
| 73 |
|
|
INTEGER iters |
| 74 |
|
|
INTEGER color, rank |
| 75 |
|
|
PC subpc |
| 76 |
|
|
KSP subksp(1) |
| 77 |
|
|
Vec rhs |
| 78 |
|
|
Vec solution |
| 79 |
|
|
PetscErrorCode ierr |
| 80 |
|
|
#ifdef ALLOW_USE_MPI |
| 81 |
|
|
integer mpiRC, mpiMyWid |
| 82 |
|
|
#endif |
| 83 |
|
|
#endif |
| 84 |
|
|
|
| 85 |
|
|
|
| 86 |
|
|
! print *, "GOT HERE CG3D", myByLo(mythid), myByHi(myThid), |
| 87 |
|
|
! & myBxLo(mythid), myBxHi(myThid) |
| 88 |
|
|
! RETURN |
| 89 |
|
|
|
| 90 |
|
|
#ifdef ALLOW_PETSC |
| 91 |
|
|
|
| 92 |
|
|
IF ((myIter.eq.1) .OR. (.not.cg3d_petsc_reuse_mat)) THEN |
| 93 |
|
|
cg3d_need2create_mat = .TRUE. |
| 94 |
|
|
ELSE |
| 95 |
|
|
cg3d_need2create_mat = .FALSE. |
| 96 |
|
|
ENDIF |
| 97 |
|
|
|
| 98 |
|
|
IF ((myIter.eq.nTimeSteps) .OR. (.not.cg3d_petsc_reuse_mat)) THEN |
| 99 |
|
|
cg3d_need2destroy_mat = .TRUE. |
| 100 |
|
|
ELSE |
| 101 |
|
|
cg3d_need2destroy_mat = .FALSE. |
| 102 |
|
|
ENDIF |
| 103 |
|
|
|
| 104 |
|
|
|
| 105 |
|
|
#ifdef ALLOW_USE_MPI |
| 106 |
|
|
|
| 107 |
|
|
|
| 108 |
|
|
CALL MPI_COMM_RANK( MPI_COMM_WORLD, mpiMyWId, mpiRC ) |
| 109 |
|
|
local_dofs = cg3d_dofs_process (mpiMyWid) |
| 110 |
|
|
global_dofs = 0 |
| 111 |
|
|
|
| 112 |
|
|
|
| 113 |
|
|
cg3d_dofs_cum_sum(0) = 0 |
| 114 |
|
|
|
| 115 |
|
|
DO i=1,nPx*nPy*MAX_CG3D_PETSC_CPUINVERT-1 |
| 116 |
|
|
IF (i.le.cg3d_petsc_cpuInVert) THEN |
| 117 |
|
|
global_dofs = global_dofs + cg3d_dofs_process (i) |
| 118 |
|
|
if (i.ge.1) then |
| 119 |
|
|
cg3d_dofs_cum_sum(i) = cg3d_dofs_cum_sum(i-1)+ |
| 120 |
|
|
& cg3d_dofs_process(i-1) |
| 121 |
|
|
endif |
| 122 |
|
|
ENDIF |
| 123 |
|
|
ENDDO |
| 124 |
|
|
|
| 125 |
|
|
local_offset = cg3d_dofs_cum_sum(mpimywid) |
| 126 |
|
|
|
| 127 |
|
|
#else |
| 128 |
|
|
|
| 129 |
|
|
local_dofs = cg3d_dofs_process (0) |
| 130 |
|
|
global_dofs = local_dofs |
| 131 |
|
|
local_offset = 0 |
| 132 |
|
|
|
| 133 |
|
|
#endif |
| 134 |
|
|
|
| 135 |
|
|
|
| 136 |
|
|
!---------------------- |
| 137 |
|
|
|
| 138 |
|
|
|
| 139 |
|
|
call VecCreate(PETSC_COMM_WORLD, rhs, ierr) |
| 140 |
|
|
call VecSetSizes(rhs, local_dofs, global_dofs, ierr) |
| 141 |
|
|
call VecSetType(rhs, VECMPI, ierr) |
| 142 |
|
|
|
| 143 |
|
|
call VecCreate(PETSC_COMM_WORLD, solution, ierr) |
| 144 |
|
|
call VecSetSizes(solution, local_dofs, global_dofs, ierr) |
| 145 |
|
|
call VecSetType(solution, VECMPI, ierr) |
| 146 |
|
|
|
| 147 |
|
|
do i=1,local_dofs |
| 148 |
|
|
indices(i) = i-1 + local_offset |
| 149 |
|
|
end do |
| 150 |
|
|
do i=1,Nr*nSx*nSy*sNx*sNy |
| 151 |
|
|
rhs_values (i) = 0. _d 0 |
| 152 |
|
|
solution_values (i) = 0. _d 0 |
| 153 |
|
|
enddo |
| 154 |
|
|
|
| 155 |
|
|
! gather rhs and initial guess values to populate petsc vectors |
| 156 |
|
|
|
| 157 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 158 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 159 |
|
|
DO j=1,sNy |
| 160 |
|
|
DO i=1,sNx |
| 161 |
|
|
DO k=1,Nr |
| 162 |
|
|
|
| 163 |
|
|
color = INT(cg3d_petsc_color(i,j,k,bi,bj)) |
| 164 |
|
|
rank = cg3d_color_rank (color) |
| 165 |
|
|
dof_index = INT(cg3d_petsc_dofs(i,j,k,bi,bj)) |
| 166 |
|
|
& - local_offset |
| 167 |
|
|
|
| 168 |
|
|
if (dof_index.ge.0 .and. rank.eq.mpimywid) THEN |
| 169 |
|
|
|
| 170 |
|
|
rhs_values(dof_index+1) = cg3d_b(i,j,k,bi,bj) |
| 171 |
|
|
solution_values(dof_index+1) = cg3d_x(i,j,k,bi,bj) |
| 172 |
|
|
|
| 173 |
|
|
endif |
| 174 |
|
|
|
| 175 |
|
|
ENDDO |
| 176 |
|
|
ENDDO |
| 177 |
|
|
ENDDO |
| 178 |
|
|
ENDDO |
| 179 |
|
|
ENDDO |
| 180 |
|
|
|
| 181 |
|
|
call VecSetValues(rhs, local_dofs, indices, rhs_values, |
| 182 |
|
|
& INSERT_VALUES, ierr) |
| 183 |
|
|
call VecAssemblyBegin(rhs, ierr) |
| 184 |
|
|
call VecAssemblyEnd(rhs, ierr) |
| 185 |
|
|
|
| 186 |
|
|
|
| 187 |
|
|
call VecSetValues(solution, local_dofs, indices, |
| 188 |
|
|
& solution_values, INSERT_VALUES, ierr) |
| 189 |
|
|
call VecAssemblyBegin(solution, ierr) |
| 190 |
|
|
call VecAssemblyEnd(solution, ierr) |
| 191 |
|
|
|
| 192 |
|
|
|
| 193 |
|
|
if (cg3d_need2create_mat) then |
| 194 |
|
|
CALL TIMER_START ('CG3D_PETSC_MATCREATE',myThid) |
| 195 |
|
|
|
| 196 |
|
|
! IF USING v3.0 THEN |
| 197 |
|
|
! call MatCreateMPIAIJ (PETSC_COMM_WORLD, |
| 198 |
|
|
call MatCreateAIJ (PETSC_COMM_WORLD, |
| 199 |
|
|
& local_dofs, local_dofs, |
| 200 |
|
|
& global_dofs, global_dofs, |
| 201 |
|
|
& 7, PETSC_NULL_INTEGER, |
| 202 |
|
|
& 7, PETSC_NULL_INTEGER, |
| 203 |
|
|
& matrix_petsc_cg3d, ierr) |
| 204 |
|
|
|
| 205 |
|
|
|
| 206 |
|
|
! populate petsc matrix |
| 207 |
|
|
|
| 208 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 209 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 210 |
|
|
DO j=1,sNy |
| 211 |
|
|
DO i=1,sNx |
| 212 |
|
|
DO k=1,Nr |
| 213 |
|
|
|
| 214 |
|
|
dof_index = INT(cg3d_petsc_dofs(i,j,k,bi,bj)) |
| 215 |
|
|
! & - local_offset |
| 216 |
|
|
color = INT(cg3d_petsc_color(i,j,k,bi,bj)) |
| 217 |
|
|
rank = cg3d_color_rank (color) |
| 218 |
|
|
|
| 219 |
|
|
IF (dof_index .ge. 0 .and. rank.eq.mpimywid) THEN |
| 220 |
|
|
|
| 221 |
|
|
DO col_iter=1,7 |
| 222 |
|
|
indices_col(col_iter) = 0 |
| 223 |
|
|
mat_values(col_iter,1) = 0. _d 0 |
| 224 |
|
|
ENDDO |
| 225 |
|
|
col_iter = 0 |
| 226 |
|
|
|
| 227 |
|
|
! ASSUME THE STENCIL |
| 228 |
|
|
! ac3d (i,j,k) --> 1 |
| 229 |
|
|
! aw3d (i,j,k) --> 2 |
| 230 |
|
|
! as3d (i,j,k) --> 3 |
| 231 |
|
|
! av3d (i,j,k) --> 4 |
| 232 |
|
|
! aw3d (i+1,j,k) --> 5 |
| 233 |
|
|
! as3d (i,j+1,k) --> 6 |
| 234 |
|
|
! av3d (i,j,k+1) --> 7 |
| 235 |
|
|
|
| 236 |
|
|
dof_index_col = cg3d_petsc_dofs(i,j,k,bi,bj) |
| 237 |
|
|
if (dof_index_col.ge.0) then |
| 238 |
|
|
col_iter = col_iter + 1 |
| 239 |
|
|
mat_values(col_iter,1) = ac3d(i,j,k,bi,bj) |
| 240 |
|
|
indices_col(col_iter) = dof_index_col |
| 241 |
|
|
endif |
| 242 |
|
|
|
| 243 |
|
|
dof_index_col = cg3d_petsc_dofs(i-1,j,k,bi,bj) |
| 244 |
|
|
if (dof_index_col.ge.0) then |
| 245 |
|
|
col_iter = col_iter + 1 |
| 246 |
|
|
mat_values(col_iter,1) = aw3d(i,j,k,bi,bj) |
| 247 |
|
|
indices_col(col_iter) = dof_index_col |
| 248 |
|
|
endif |
| 249 |
|
|
|
| 250 |
|
|
dof_index_col = cg3d_petsc_dofs(i,j-1,k,bi,bj) |
| 251 |
|
|
if (dof_index_col.ge.0) then |
| 252 |
|
|
col_iter = col_iter + 1 |
| 253 |
|
|
mat_values(col_iter,1) = as3d(i,j,k,bi,bj) |
| 254 |
|
|
indices_col(col_iter) = dof_index_col |
| 255 |
|
|
endif |
| 256 |
|
|
|
| 257 |
|
|
if (k.gt.1) then |
| 258 |
|
|
dof_index_col = cg3d_petsc_dofs(i,j,k-1,bi,bj) |
| 259 |
|
|
if (dof_index_col.ge.0) then |
| 260 |
|
|
col_iter = col_iter + 1 |
| 261 |
|
|
mat_values(col_iter,1) = av3d(i,j,k,bi,bj) |
| 262 |
|
|
indices_col(col_iter) = dof_index_col |
| 263 |
|
|
endif |
| 264 |
|
|
endif |
| 265 |
|
|
|
| 266 |
|
|
dof_index_col = cg3d_petsc_dofs(i+1,j,k,bi,bj) |
| 267 |
|
|
if (dof_index_col.ge.0) then |
| 268 |
|
|
col_iter = col_iter + 1 |
| 269 |
|
|
mat_values(col_iter,1) = aw3d(i+1,j,k,bi,bj) |
| 270 |
|
|
indices_col(col_iter) = dof_index_col |
| 271 |
|
|
endif |
| 272 |
|
|
|
| 273 |
|
|
dof_index_col = cg3d_petsc_dofs(i,j+1,k,bi,bj) |
| 274 |
|
|
if (dof_index_col.ge.0) then |
| 275 |
|
|
col_iter = col_iter + 1 |
| 276 |
|
|
mat_values(col_iter,1) = as3d(i,j+1,k,bi,bj) |
| 277 |
|
|
indices_col(col_iter) = dof_index_col |
| 278 |
|
|
endif |
| 279 |
|
|
|
| 280 |
|
|
if (k.lt.Nr) then |
| 281 |
|
|
dof_index_col = cg3d_petsc_dofs(i,j,k+1,bi,bj) |
| 282 |
|
|
if (dof_index_col.ge.0) then |
| 283 |
|
|
col_iter = col_iter + 1 |
| 284 |
|
|
mat_values(col_iter,1) = av3d(i,j,k+1,bi,bj) |
| 285 |
|
|
indices_col(col_iter) = dof_index_col |
| 286 |
|
|
endif |
| 287 |
|
|
endif |
| 288 |
|
|
|
| 289 |
|
|
call matSetValues (matrix_petsc_cg3d, 1, dof_index, col_iter, |
| 290 |
|
|
& indices_col, |
| 291 |
|
|
& mat_values,INSERT_VALUES,ierr) |
| 292 |
|
|
|
| 293 |
|
|
|
| 294 |
|
|
ENDIF |
| 295 |
|
|
|
| 296 |
|
|
|
| 297 |
|
|
ENDDO |
| 298 |
|
|
ENDDO |
| 299 |
|
|
ENDDO |
| 300 |
|
|
ENDDO |
| 301 |
|
|
ENDDO |
| 302 |
|
|
|
| 303 |
|
|
call MatAssemblyBegin(matrix_petsc_cg3d,MAT_FINAL_ASSEMBLY,ierr) |
| 304 |
|
|
call MatAssemblyEnd(matrix_petsc_cg3d,MAT_FINAL_ASSEMBLY,ierr) |
| 305 |
|
|
|
| 306 |
|
|
|
| 307 |
|
|
call KSPCreate(PETSC_COMM_WORLD, ksp_cg3d, ierr) |
| 308 |
|
|
call KSPSetOperators(ksp_cg3d, |
| 309 |
|
|
& matrix_petsc_cg3d, matrix_petsc_cg3d, |
| 310 |
|
|
& DIFFERENT_NONZERO_PATTERN, ierr) |
| 311 |
|
|
|
| 312 |
|
|
IF (CG3D_PETSC_PRECOND_TYPE.eq.'MUMPS') then |
| 313 |
|
|
call KSPSetType(ksp_cg3d,KSPPREONLY,ierr) |
| 314 |
|
|
ELSE |
| 315 |
|
|
SELECT CASE (CG3D_PETSC_SOLVER_TYPE) |
| 316 |
|
|
CASE ('CG') |
| 317 |
|
|
PRINT *, "PETSC SOLVER: SELECTED CG" |
| 318 |
|
|
call KSPSetType(ksp_cg3d, KSPCG, ierr) |
| 319 |
|
|
CASE ('GMRES') |
| 320 |
|
|
PRINT *, "PETSC SOLVER: SELECTED GMRES" |
| 321 |
|
|
call KSPSetType(ksp_cg3d, KSPGMRES, ierr) |
| 322 |
|
|
CASE ('BICG') |
| 323 |
|
|
PRINT *, "PETSC SOLVER: SELECTED BICG" |
| 324 |
|
|
call KSPSetType(ksp_cg3d, KSPBICG, ierr) |
| 325 |
|
|
CASE DEFAULT |
| 326 |
|
|
PRINT *, "PETSC SOLVER: SELECTED DEFAULT" |
| 327 |
|
|
call KSPSetType(ksp_cg3d, KSPCG, ierr) |
| 328 |
|
|
END SELECT |
| 329 |
|
|
ENDIF |
| 330 |
|
|
|
| 331 |
|
|
call KSPGetPC(ksp_cg3d, pc_cg3d, ierr) |
| 332 |
|
|
call KSPSetTolerances(ksp_cg3d,tolerance, |
| 333 |
|
|
& PETSC_DEFAULT_DOUBLE_PRECISION, |
| 334 |
|
|
& PETSC_DEFAULT_DOUBLE_PRECISION, |
| 335 |
|
|
& maxiter,ierr) |
| 336 |
|
|
|
| 337 |
|
|
SELECT CASE (CG3D_PETSC_PRECOND_TYPE) |
| 338 |
|
|
CASE ('BLOCKJACOBI') |
| 339 |
|
|
PRINT *, "PETSC PRECOND: SELECTED BJACOBI" |
| 340 |
|
|
call PCSetType(pc_cg3d, PCBJACOBI, ierr) |
| 341 |
|
|
call kspsetup (ksp_cg3d, ierr) |
| 342 |
|
|
call PCBJacobiGetSubKSP (pc_cg3d,PETSC_NULL_INTEGER, |
| 343 |
|
|
& PETSC_NULL_INTEGER, |
| 344 |
|
|
& subksp,ierr); |
| 345 |
|
|
call KSPGetPC (subksp, subpc, ierr) |
| 346 |
|
|
call PCSetType (subpc, PCILU, ierr) |
| 347 |
|
|
! call PCFactorSetLevels(subpc,0,ierr) |
| 348 |
|
|
CASE ('JACOBI') |
| 349 |
|
|
PRINT *, "PETSC PRECOND: SELECTED JACOBI" |
| 350 |
|
|
call PCSetType(pc_cg3d, PCJACOBI, ierr) |
| 351 |
|
|
CASE ('ILU') |
| 352 |
|
|
PRINT *, "PETSC PRECOND: SELECTED ILU" |
| 353 |
|
|
call PCSetType(pc_cg3d, PCILU, ierr) |
| 354 |
|
|
|
| 355 |
|
|
CASE ('GAMG') |
| 356 |
|
|
PRINT *, "PETSC PRECOND: SELECTED GAMG" |
| 357 |
|
|
call PCSetType(pc_cg3d, PCGAMG, ierr) |
| 358 |
|
|
call PCGAMGSetCoarseEqLim(pc_cg3d,10000,ierr) |
| 359 |
|
|
call PCGAMGSetSymGraph(pc_cg3d, PETSC_TRUE,ierr) |
| 360 |
|
|
call PCGAMGSetNSmooths(pc_cg3d, 0,ierr) |
| 361 |
|
|
call PCGAMGSetThreshold(pc_cg3d, .001,ierr) |
| 362 |
|
|
! call PCGAMGSetReuseProl(pc,PETSC_FALSE,ierr) |
| 363 |
|
|
call kspsetup (ksp_cg3d, ierr) |
| 364 |
|
|
|
| 365 |
|
|
CASE ('MUMPS') |
| 366 |
|
|
PRINT *, "PETSC PRECOND: SELECTED MUMPS" |
| 367 |
|
|
call PCSetType(pc_cg3d,PCLU,ierr) |
| 368 |
|
|
call PCFactorSetMatSolverPackage(pc_cg3d,MATSOLVERMUMPS,ierr) |
| 369 |
|
|
call PCFactorSetUpMatSolverPackage(pc_cg3d,ierr) |
| 370 |
|
|
call PCFactorGetMatrix(pc_cg3d,mumpsFac_cg3d,ierr) |
| 371 |
|
|
call MatMumpsSetIcntl(mumpsfac_cg3d,7,2,ierr) |
| 372 |
|
|
call MatMumpsSetIcntl(mumpsfac_cg3d,24,1,ierr) |
| 373 |
|
|
! call MatMumpsSetCntl(mumpsfac,3,2.e-6,ierr) |
| 374 |
|
|
call kspsetup (ksp_cg3d, ierr) |
| 375 |
|
|
|
| 376 |
|
|
CASE DEFAULT |
| 377 |
|
|
PRINT *, "PETSC PRECOND: SELECTED DEFAULT" |
| 378 |
|
|
call PCSetType(pc_cg3d, PCBJACOBI, ierr) |
| 379 |
|
|
END SELECT |
| 380 |
|
|
|
| 381 |
|
|
|
| 382 |
|
|
CALL TIMER_STOP ('CG3D_PETSC_MATCREATE',myThid) |
| 383 |
|
|
endif ! need3create_mat |
| 384 |
|
|
|
| 385 |
|
|
|
| 386 |
|
|
CALL TIMER_START ('CG3D_PETSC_SOLVE',myThid) |
| 387 |
|
|
|
| 388 |
|
|
call KSPSolve(ksp_cg3d, rhs, solution, ierr) |
| 389 |
|
|
|
| 390 |
|
|
CALL TIMER_STOP ('CG3D_PETSC_SOLVE',myThid) |
| 391 |
|
|
|
| 392 |
|
|
call KSPGetIterationNumber(ksp_cg3d,iters,ierr) |
| 393 |
|
|
print *, "GOT HERE CG3D PETSC SOLVE COMPLETE", iters |
| 394 |
|
|
|
| 395 |
|
|
maxIter = iters |
| 396 |
|
|
|
| 397 |
|
|
call VecGetValues(solution,local_dofs,indices, |
| 398 |
|
|
& solution_values,ierr) |
| 399 |
|
|
|
| 400 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 401 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 402 |
|
|
DO j=1,sNy |
| 403 |
|
|
DO i=1,sNx |
| 404 |
|
|
DO k=1,Nr |
| 405 |
|
|
|
| 406 |
|
|
dof_index = INT(cg3d_petsc_dofs(i,j,k,bi,bj)) |
| 407 |
|
|
& - local_offset |
| 408 |
|
|
color = INT(cg3d_petsc_color(i,j,k,bi,bj)) |
| 409 |
|
|
rank = cg3d_color_rank (color) |
| 410 |
|
|
if (dof_index.ge.0.and.rank.eq.mpimywid) THEN |
| 411 |
|
|
cg3d_x(i,j,k,bi,bj) = solution_values(dof_index+1) |
| 412 |
|
|
endif |
| 413 |
|
|
|
| 414 |
|
|
ENDDO |
| 415 |
|
|
ENDDO |
| 416 |
|
|
ENDDO |
| 417 |
|
|
ENDDO |
| 418 |
|
|
ENDDO |
| 419 |
|
|
|
| 420 |
|
|
if (cg3d_need2destroy_mat) then |
| 421 |
|
|
call KSPDestroy (ksp_cg3d, ierr) |
| 422 |
|
|
call MatDestroy (matrix_petsc_cg3d, ierr) |
| 423 |
|
|
endif |
| 424 |
|
|
call VecDestroy (rhs, ierr) |
| 425 |
|
|
call VecDestroy (solution, ierr) |
| 426 |
|
|
|
| 427 |
|
|
|
| 428 |
|
|
|
| 429 |
|
|
|
| 430 |
|
|
#endif |
| 431 |
|
|
|
| 432 |
|
|
|
| 433 |
|
|
|
| 434 |
|
|
RETURN |
| 435 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph