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 |
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I maxIter, |
21 |
I myThid ) |
I myThid ) |
22 |
C /============================================================\ |
C /============================================================\ |
23 |
C | SUBROUTINE | |
C | SUBROUTINE | |
35 |
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38 |
#ifdef ALLOW_PETSC |
!#ifdef ALLOW_PETSC |
39 |
#include "finclude/petsc.h" |
!#include "finclude/petsc.h" |
40 |
! UNCOMMENT IF V3.0 |
! UNCOMMENT IF V3.0 |
41 |
!#include "finclude/petscvec.h" |
!#include "finclude/petscvec.h" |
42 |
!#include "finclude/petscmat.h" |
!#include "finclude/petscmat.h" |
43 |
!#include "finclude/petscksp.h" |
!#include "finclude/petscksp.h" |
44 |
!#include "finclude/petscpc.h" |
!#include "finclude/petscpc.h" |
45 |
#endif |
!#endif |
46 |
C === Global variables === |
C === Global variables === |
47 |
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48 |
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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 |
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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) |
72 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
73 |
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75 |
#ifdef ALLOW_PETSC |
!#ifdef ALLOW_PETSC |
76 |
INTEGER indices(2*(snx*nsx*sny*nsy)) |
! INTEGER indices(2*(snx*nsx*sny*nsy)) |
77 |
INTEGER n_dofs_cum_sum (0:nPx*nPy-1), idx(1) |
! INTEGER n_dofs_cum_sum (0:nPx*nPy-1), idx(1) |
78 |
_RL rhs_values(2*(snx*nsx*sny*nsy)) |
! _RL rhs_values(2*(snx*nsx*sny*nsy)) |
79 |
_RL solution_values(2*(snx*nsx*sny*nsy)) |
! _RL solution_values(2*(snx*nsx*sny*nsy)) |
80 |
! _RL mat_values (2*Nx*Ny,2*(snx*nsx*sny*nsy)) |
! _RL mat_values (2*Nx*Ny,2*(snx*nsx*sny*nsy)) |
81 |
_RL mat_values (18,1), mat_val_return(1) |
! _RL mat_values (18,1), mat_val_return(1) |
82 |
INTEGER indices_col(18) |
! INTEGER indices_col(18) |
83 |
INTEGER local_dofs, global_dofs, dof_index, dof_index_col |
! INTEGER local_dofs, global_dofs, dof_index, dof_index_col |
84 |
INTEGER local_offset |
! INTEGER local_offset |
85 |
Mat matrix |
! Mat matrix |
86 |
KSP ksp |
! KSP ksp |
87 |
PC pc |
! PC pc |
88 |
Vec rhs |
! Vec rhs |
89 |
Vec solution |
! Vec solution |
90 |
PetscErrorCode ierr |
! PetscErrorCode ierr |
91 |
#ifdef ALLOW_USE_MPI |
!#ifdef ALLOW_USE_MPI |
92 |
integer mpiRC, mpiMyWid |
! integer mpiRC, mpiMyWid |
93 |
#endif |
!#endif |
94 |
#endif |
!#endif |
95 |
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96 |
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97 |
#ifdef ALLOW_STREAMICE |
#ifdef ALLOW_STREAMICE |
103 |
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104 |
#ifdef ALLOW_PETSC |
#ifdef ALLOW_PETSC |
105 |
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106 |
#ifdef ALLOW_USE_MPI |
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 |
CALL MPI_COMM_RANK( MPI_COMM_WORLD, mpiMyWId, mpiRC ) |
I cg_Bu, ! force in x dir |
110 |
local_dofs = n_dofs_process (mpiMyWid) |
I cg_Bv, ! force in y dir |
111 |
global_dofs = 0 |
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 |
n_dofs_cum_sum(0) = 0 |
I A_vu, ! section of matrix that multiplies u and projects on v |
114 |
DO i=0,nPx*nPy-1 |
I A_vv, ! section of matrix that multiplies v and projects on v |
115 |
global_dofs = global_dofs + n_dofs_process (i) |
I tolerance, |
116 |
if (i.ge.1) THEN |
I maxIter, |
117 |
n_dofs_cum_sum(i) = n_dofs_cum_sum(i-1)+ |
O iters, |
118 |
& n_dofs_process(i-1) |
I myThid ) |
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endif |
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ENDDO |
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local_offset = n_dofs_cum_sum(mpimywid) |
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#else |
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local_dofs = n_dofs_process (0) |
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global_dofs = local_dofs |
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local_offset = 0 |
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#endif |
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! call petscInitialize(PETSC_NULL_CHARACTER,ierr) |
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!---------------------- |
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call VecCreate(PETSC_COMM_WORLD, rhs, ierr) |
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call VecSetSizes(rhs, local_dofs, global_dofs, ierr) |
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call VecSetType(rhs, VECMPI, ierr) |
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call VecCreate(PETSC_COMM_WORLD, solution, ierr) |
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call VecSetSizes(solution, local_dofs, global_dofs, ierr) |
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call VecSetType(solution, VECMPI, ierr) |
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do i=1,local_dofs |
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indices(i) = i-1 + local_offset |
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end do |
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do i=1,2*nSx*nSy*sNx*sNy |
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rhs_values (i) = 0. _d 0 |
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solution_values (i) = 0. _d 0 |
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enddo |
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! gather rhs and initial guess values to populate petsc vectors |
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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,sNy |
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DO i=1,sNx |
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dof_index = INT(streamice_petsc_dofs_u(i,j,bi,bj)) |
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& - local_offset |
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if (dof_index.ge.0) THEN |
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rhs_values(dof_index+1) = cg_Bu(i,j,bi,bj) |
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solution_values(dof_index+1) = cg_Uin(i,j,bi,bj) |
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endif |
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!--------------- |
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dof_index = INT(streamice_petsc_dofs_v(i,j,bi,bj)) |
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& - local_offset |
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if (dof_index.ge.0) THEN |
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rhs_values(dof_index+1) = cg_Bv(i,j,bi,bj) |
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solution_values(dof_index+1) = cg_Vin(i,j,bi,bj) |
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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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call VecSetValues(rhs, local_dofs, indices, rhs_values, |
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& INSERT_VALUES, ierr) |
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call VecAssemblyBegin(rhs, ierr) |
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call VecAssemblyEnd(rhs, ierr) |
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call VecSetValues(solution, local_dofs, indices, |
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& solution_values, INSERT_VALUES, ierr) |
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call VecAssemblyBegin(solution, ierr) |
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call VecAssemblyEnd(solution, ierr) |
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! IF USING v3.0 THEN |
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! call MatCreateMPIAIJ (PETSC_COMM_WORLD, |
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call MatCreateAIJ (PETSC_COMM_WORLD, |
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& local_dofs, local_dofs, |
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& global_dofs, global_dofs, |
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& 18, PETSC_NULL_INTEGER, |
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& 18, PETSC_NULL_INTEGER, |
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& matrix, ierr) |
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! populate petsc matrix |
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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,sNy |
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DO i=1,sNx |
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dof_index = INT(streamice_petsc_dofs_u(i,j,bi,bj)) |
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! & - local_offset |
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IF (dof_index .ge. 0) THEN |
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DO k=1,18 |
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indices_col(k) = 0 |
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mat_values(k,1) = 0. _d 0 |
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ENDDO |
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k=0 |
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DO coly=-1,1 |
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DO colx=-1,1 |
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dof_index_col = streamice_petsc_dofs_u(i+colx,j+coly,bi,bj) |
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if (dof_index_col.ge.0) THEN |
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! pscal = A_uu(i,j,bi,bj,colx,coly) |
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! CALL MatSetValue (matrix,dof_index, dof_index_col, |
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! & pscal,INSERT_VALUES,ierr) |
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k=k+1 |
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mat_values (k,1) = A_uu(i,j,bi,bj,colx,coly) |
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indices_col (k) = dof_index_col |
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endif |
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dof_index_col = streamice_petsc_dofs_v(i+colx,j+coly,bi,bj) |
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if (dof_index_col.ge.0) THEN |
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! CALL MatSetValue (matrix,dof_index, dof_index_col, |
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! & A_uv(i,j,bi,bj,colx,coly),INSERT_VALUES,ierr) |
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k=k+1 |
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mat_values (k,1) = A_uv(i,j,bi,bj,colx,coly) |
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indices_col (k) = dof_index_col |
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endif |
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ENDDO |
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ENDDO |
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call matSetValues (matrix, 1, dof_index, k, indices_col, |
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& mat_values,INSERT_VALUES,ierr) |
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ENDIF |
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! ---------------------------------------------- |
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dof_index = INT(streamice_petsc_dofs_v(i,j,bi,bj)) |
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! & - local_offset |
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IF (dof_index .ge. 0) THEN |
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DO k=1,18 |
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indices_col(k) = 0 |
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mat_values(k,1) = 0. _d 0 |
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ENDDO |
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k=0 |
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DO coly=-1,1 |
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DO colx=-1,1 |
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dof_index_col = streamice_petsc_dofs_u(i+colx,j+coly,bi,bj) |
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if (dof_index_col.ge.0) THEN |
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! CALL MatSetValue (matrix,dof_index, dof_index_col, |
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! & A_vu(i,j,bi,bj,colx,coly),INSERT_VALUES,ierr) |
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k=k+1 |
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mat_values (k,1) = A_vu(i,j,bi,bj,colx,coly) |
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indices_col (k) = dof_index_col |
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endif |
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dof_index_col = streamice_petsc_dofs_v(i+colx,j+coly,bi,bj) |
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if (dof_index_col.ge.0) THEN |
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! CALL MatSetValue (matrix,dof_index, dof_index_col, |
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! & A_vv(i,j,bi,bj,colx,coly),INSERT_VALUES,ierr) |
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k=k+1 |
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mat_values (k,1) = A_vv(i,j,bi,bj,colx,coly) |
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indices_col (k) = dof_index_col |
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endif |
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ENDDO |
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ENDDO |
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call matSetValues (matrix, 1, dof_index, k, indices_col, |
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& mat_values,INSERT_VALUES,ierr) |
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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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call MatAssemblyBegin(matrix,MAT_FINAL_ASSEMBLY,ierr) |
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call MatAssemblyEnd(matrix,MAT_FINAL_ASSEMBLY,ierr) |
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call KSPCreate(PETSC_COMM_WORLD, ksp, ierr) |
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call KSPSetOperators(ksp, matrix, matrix, |
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& DIFFERENT_NONZERO_PATTERN, ierr) |
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SELECT CASE (PETSC_SOLVER_TYPE) |
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CASE ('CG') |
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PRINT *, "PETSC SOLVER: SELECTED CG" |
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call KSPSetType(ksp, KSPCG, ierr) |
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CASE ('GMRES') |
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PRINT *, "PETSC SOLVER: SELECTED GMRES" |
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call KSPSetType(ksp, KSPGMRES, ierr) |
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CASE ('BICG') |
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PRINT *, "PETSC SOLVER: SELECTED BICG" |
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call KSPSetType(ksp, KSPBICG, ierr) |
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CASE DEFAULT |
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PRINT *, "PETSC SOLVER: SELECTED DEFAULT" |
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call KSPSetType(ksp, KSPCG, ierr) |
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END SELECT |
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call KSPGetPC(ksp, pc, ierr) |
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call KSPSetTolerances(ksp,tolerance, |
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& PETSC_DEFAULT_DOUBLE_PRECISION, |
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& PETSC_DEFAULT_DOUBLE_PRECISION, |
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& streamice_max_cg_iter,ierr) |
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SELECT CASE (PETSC_PRECOND_TYPE) |
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CASE ('BLOCKJACOBI') |
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PRINT *, "PETSC PRECOND: SELECTED BJACOBI" |
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call PCSetType(pc, PCBJACOBI, ierr) |
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CASE ('JACOBI') |
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PRINT *, "PETSC PRECOND: SELECTED JACOBI" |
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call PCSetType(pc, PCJACOBI, ierr) |
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CASE ('ILU') |
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PRINT *, "PETSC PRECOND: SELECTED ILU" |
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call PCSetType(pc, PCILU, ierr) |
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CASE DEFAULT |
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PRINT *, "PETSC PRECOND: SELECTED DEFAULT" |
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call PCSetType(pc, PCBJACOBI, ierr) |
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END SELECT |
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call KSPSolve(ksp, rhs, solution, ierr) |
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call KSPGetIterationNumber(ksp,iters,ierr) |
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call VecGetValues(solution,local_dofs,indices, |
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& solution_values,ierr) |
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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,sNy |
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DO i=1,sNx |
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dof_index = INT(streamice_petsc_dofs_u(i,j,bi,bj)) |
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& - local_offset |
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if (dof_index.ge.0) THEN |
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cg_Uin(i,j,bi,bj) = solution_values(dof_index+1) |
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endif |
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dof_index = INT(streamice_petsc_dofs_v(i,j,bi,bj)) |
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& - local_offset |
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if (dof_index.ge.0) THEN |
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cg_Vin(i,j,bi,bj) = solution_values(dof_index+1) |
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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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119 |
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120 |
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121 |
#else /* ALLOW_PETSC */ |
#else /* ALLOW_PETSC */ |
122 |
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123 |
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124 |
iters = streamice_max_cg_iter |
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 |
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213 |
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DO bj = myByLo(myThid), myByHi(myThid) |
214 |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
215 |
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216 |
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WRITE(msgBuf,'(A,I1,I1,E14.7)') 'CONJ GRAD INIT RESID LOCAL, ', |
217 |
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& bi,bj, dot_p1_tile(bi,bj) |
218 |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
219 |
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& SQUEEZE_RIGHT , 1) |
220 |
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221 |
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enddo |
222 |
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enddo |
223 |
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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, |
276 |
! IF(STREAMICE_construct_matrix) CALL STREAMICE_CG_MAKE_A(myThid) |
! IF(STREAMICE_construct_matrix) CALL STREAMICE_CG_MAKE_A(myThid) |
277 |
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278 |
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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 |
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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 |
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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 |
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524 |
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525 |
#else /* STREAMICE_SERIAL_TRISOLVE */ |
#else /* STREAMICE_SERIAL_TRISOLVE */ |
526 |
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527 |
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iters = 0 |
528 |
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529 |
CALL STREAMICE_TRIDIAG_SOLVE( |
CALL STREAMICE_TRIDIAG_SOLVE( |
530 |
U cg_Uin, ! x-velocities |
U cg_Uin, ! x-velocities |
531 |
U cg_Vin, |
U cg_Vin, |