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mld2p4-2:

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mlprec/mld_d_as_smoother.f90
 mlprec/mld_d_diag_solver.f90
 mlprec/mld_d_id_solver.f90
 mlprec/mld_d_ilu_solver.f90
 mlprec/mld_d_inner_mod.f90
 mlprec/mld_d_jac_smoother.f90
 mlprec/mld_d_prec_mod.f90
 mlprec/mld_d_prec_type.f90
 mlprec/mld_d_slu_solver.f90
 mlprec/mld_d_sludist_solver.f90
 mlprec/mld_d_umf_solver.f90
 mlprec/mld_dmlprec_bld.f90
 mlprec/mld_dprecaply.f90
 mlprec/mld_dprecbld.f90

Started inclusion of _vect methods.
stopcriterion
Salvatore Filippone 13 years ago
parent 05a910d78e
commit 859ba30c4c
14 changed files with 1353 additions and 167 deletions
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494
mlprec/mld_d_as_smoother.f90
Unescape Escape View File

@ -55,16 +55,17 @@ module mld_d_as_smoother
type(psb_desc_type) :: desc_data
integer :: novr, restr, prol, nd_nnz_tot
contains
procedure, pass(sm) :: check => d_as_smoother_check
procedure, pass(sm) :: dump => d_as_smoother_dmp
procedure, pass(sm) :: build => d_as_smoother_bld
procedure, pass(sm) :: apply => d_as_smoother_apply
procedure, pass(sm) :: free => d_as_smoother_free
procedure, pass(sm) :: seti => d_as_smoother_seti
procedure, pass(sm) :: setc => d_as_smoother_setc
procedure, pass(sm) :: setr => d_as_smoother_setr
procedure, pass(sm) :: descr => d_as_smoother_descr
procedure, pass(sm) :: sizeof => d_as_smoother_sizeof
procedure, pass(sm) :: check => d_as_smoother_check
procedure, pass(sm) :: dump => d_as_smoother_dmp
procedure, pass(sm) :: build => d_as_smoother_bld
procedure, pass(sm) :: apply_v => d_as_smoother_apply_vect
procedure, pass(sm) :: apply_a => d_as_smoother_apply
procedure, pass(sm) :: free => d_as_smoother_free
procedure, pass(sm) :: seti => d_as_smoother_seti
procedure, pass(sm) :: setc => d_as_smoother_setc
procedure, pass(sm) :: setr => d_as_smoother_setr
procedure, pass(sm) :: descr => d_as_smoother_descr
procedure, pass(sm) :: sizeof => d_as_smoother_sizeof
procedure, pass(sm) :: default => d_as_smoother_default
end type mld_d_as_smoother_type
@ -74,7 +75,7 @@ module mld_d_as_smoother
& d_as_smoother_setc, d_as_smoother_setr,&
& d_as_smoother_descr, d_as_smoother_sizeof, &
& d_as_smoother_check, d_as_smoother_default,&
& d_as_smoother_dmp
& d_as_smoother_dmp, d_as_smoother_apply_vect
character(len=6), parameter, private :: &
& restrict_names(0:4)=(/'none ','halo ',' ',' ',' '/)
@ -151,6 +152,442 @@ contains
return
end subroutine d_as_smoother_check
subroutine d_as_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_as_smoother_type), intent(inout) :: sm
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
integer, intent(in) :: sweeps
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col, nrow_d, i
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me, err_act,isz,int_err(5)
character :: trans_
character(len=20) :: name='d_as_smoother_apply', ch_err
call psb_erractionsave(err_act)
info = psb_success_
ictxt = desc_data%get_context()
call psb_info(ictxt,me,np)
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
if (.not.allocated(sm%sv)) then
info = 1121
call psb_errpush(info,name)
goto 9999
end if
n_row = sm%desc_data%get_local_rows()
n_col = sm%desc_data%get_local_cols()
nrow_d = desc_data%get_local_rows()
isz=max(n_row,N_COL)
if ((6*isz) <= size(work)) then
ww => work(1:isz)
tx => work(isz+1:2*isz)
ty => work(2*isz+1:3*isz)
aux => work(3*isz+1:)
else if ((4*isz) <= size(work)) then
aux => work(1:)
allocate(ww(isz),tx(isz),ty(isz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_alloc_request_,name,i_err=(/3*isz,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
else if ((3*isz) <= size(work)) then
ww => work(1:isz)
tx => work(isz+1:2*isz)
ty => work(2*isz+1:3*isz)
allocate(aux(4*isz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_alloc_request_,name,i_err=(/4*isz,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
else
allocate(ww(isz),tx(isz),ty(isz),&
&aux(4*isz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_alloc_request_,name,i_err=(/4*isz,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
endif
if ((sm%novr == 0).and.(sweeps == 1)) then
!
! Shortcut: in this case it's just the same
! as Block Jacobi.
!
call sm%sv%apply(alpha,x,beta,y,desc_data,trans_,aux,info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in sub_aply Jacobi Sweeps = 1')
goto 9999
endif
else
!!$
!!$ tx(1:nrow_d) = x(1:nrow_d)
!!$ tx(nrow_d+1:isz) = dzero
!!$
!!$
!!$ if (sweeps == 1) then
!!$
!!$ select case(trans_)
!!$ case('N')
!!$ !
!!$ ! Get the overlap entries of tx (tx == x)
!!$ !
!!$ if (sm%restr == psb_halo_) then
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$ else if (sm%restr /= psb_none_) then
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_restr_')
!!$ goto 9999
!!$ end if
!!$
!!$
!!$ case('T','C')
!!$ !
!!$ ! With transpose, we have to do it here
!!$ !
!!$
!!$ select case (sm%prol)
!!$
!!$ case(psb_none_)
!!$ !
!!$ ! Do nothing
!!$
!!$ case(psb_sum_)
!!$ !
!!$ ! The transpose of sum is halo
!!$ !
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$
!!$ case(psb_avg_)
!!$ !
!!$ ! Tricky one: first we have to scale the overlap entries,
!!$ ! which we can do by assignind mode=0, i.e. no communication
!!$ ! (hence only scaling), then we do the halo
!!$ !
!!$ call psb_ovrl(tx,sm%desc_data,info,&
!!$ & update=psb_avg_,work=aux,mode=0)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_prol_')
!!$ goto 9999
!!$ end select
!!$
!!$
!!$ case default
!!$ info=psb_err_iarg_invalid_i_
!!$ int_err(1)=6
!!$ ch_err(2:2)=trans
!!$ goto 9999
!!$ end select
!!$
!!$ call sm%sv%apply(done,tx,dzero,ty,sm%desc_data,trans_,aux,info)
!!$
!!$ if (info /= psb_success_) then
!!$ call psb_errpush(psb_err_internal_error_,name,&
!!$ & a_err='Error in sub_aply Jacobi Sweeps = 1')
!!$ goto 9999
!!$ endif
!!$
!!$ select case(trans_)
!!$ case('N')
!!$
!!$ select case (sm%prol)
!!$
!!$ case(psb_none_)
!!$ !
!!$ ! Would work anyway, but since it is supposed to do nothing ...
!!$ ! call psb_ovrl(ty,sm%desc_data,info,&
!!$ ! & update=sm%prol,work=aux)
!!$
!!$
!!$ case(psb_sum_,psb_avg_)
!!$ !
!!$ ! Update the overlap of ty
!!$ !
!!$ call psb_ovrl(ty,sm%desc_data,info,&
!!$ & update=sm%prol,work=aux)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_prol_')
!!$ goto 9999
!!$ end select
!!$
!!$ case('T','C')
!!$ !
!!$ ! With transpose, we have to do it here
!!$ !
!!$ if (sm%restr == psb_halo_) then
!!$ call psb_ovrl(ty,sm%desc_data,info,&
!!$ & update=psb_sum_,work=aux)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$ else if (sm%restr /= psb_none_) then
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_restr_')
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ info=psb_err_iarg_invalid_i_
!!$ int_err(1)=6
!!$ ch_err(2:2)=trans
!!$ goto 9999
!!$ end select
!!$
!!$
!!$
!!$ else if (sweeps > 1) then
!!$
!!$ !
!!$ !
!!$ ! Apply prec%iprcparm(mld_smoother_sweeps_) sweeps of a block-Jacobi solver
!!$ ! to compute an approximate solution of a linear system.
!!$ !
!!$ !
!!$ ty = dzero
!!$ do i=1, sweeps
!!$ select case(trans_)
!!$ case('N')
!!$ !
!!$ ! Get the overlap entries of tx (tx == x)
!!$ !
!!$ if (sm%restr == psb_halo_) then
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$ else if (sm%restr /= psb_none_) then
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_restr_')
!!$ goto 9999
!!$ end if
!!$
!!$
!!$ case('T','C')
!!$ !
!!$ ! With transpose, we have to do it here
!!$ !
!!$
!!$ select case (sm%prol)
!!$
!!$ case(psb_none_)
!!$ !
!!$ ! Do nothing
!!$
!!$ case(psb_sum_)
!!$ !
!!$ ! The transpose of sum is halo
!!$ !
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$
!!$ case(psb_avg_)
!!$ !
!!$ ! Tricky one: first we have to scale the overlap entries,
!!$ ! which we can do by assignind mode=0, i.e. no communication
!!$ ! (hence only scaling), then we do the halo
!!$ !
!!$ call psb_ovrl(tx,sm%desc_data,info,&
!!$ & update=psb_avg_,work=aux,mode=0)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$ call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_halo'
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_prol_')
!!$ goto 9999
!!$ end select
!!$
!!$
!!$ case default
!!$ info=psb_err_iarg_invalid_i_
!!$ int_err(1)=6
!!$ ch_err(2:2)=trans
!!$ goto 9999
!!$ end select
!!$ !
!!$ ! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
!!$ ! block diagonal part and the remaining part of the local matrix
!!$ ! and Y(j) is the approximate solution at sweep j.
!!$ !
!!$ ww(1:n_row) = tx(1:n_row)
!!$ call psb_spmm(-done,sm%nd,ty,done,ww,sm%desc_data,info,work=aux,trans=trans_)
!!$
!!$ if (info /= psb_success_) exit
!!$
!!$ call sm%sv%apply(done,ww,dzero,ty,sm%desc_data,trans_,aux,info)
!!$
!!$ if (info /= psb_success_) exit
!!$
!!$
!!$ select case(trans_)
!!$ case('N')
!!$
!!$ select case (sm%prol)
!!$
!!$ case(psb_none_)
!!$ !
!!$ ! Would work anyway, but since it is supposed to do nothing ...
!!$ ! call psb_ovrl(ty,sm%desc_data,info,&
!!$ ! & update=sm%prol,work=aux)
!!$
!!$
!!$ case(psb_sum_,psb_avg_)
!!$ !
!!$ ! Update the overlap of ty
!!$ !
!!$ call psb_ovrl(ty,sm%desc_data,info,&
!!$ & update=sm%prol,work=aux)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_prol_')
!!$ goto 9999
!!$ end select
!!$
!!$ case('T','C')
!!$ !
!!$ ! With transpose, we have to do it here
!!$ !
!!$ if (sm%restr == psb_halo_) then
!!$ call psb_ovrl(ty,sm%desc_data,info,&
!!$ & update=psb_sum_,work=aux)
!!$ if(info /= psb_success_) then
!!$ info=psb_err_from_subroutine_
!!$ ch_err='psb_ovrl'
!!$ goto 9999
!!$ end if
!!$ else if (sm%restr /= psb_none_) then
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Invalid mld_sub_restr_')
!!$ goto 9999
!!$ end if
!!$
!!$ case default
!!$ info=psb_err_iarg_invalid_i_
!!$ int_err(1)=6
!!$ ch_err(2:2)=trans
!!$ goto 9999
!!$ end select
!!$ end do
!!$
!!$ if (info /= psb_success_) then
!!$ info=psb_err_internal_error_
!!$ call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
!!$ goto 9999
!!$ end if
!!$
!!$
!!$ else
!!$
!!$ info = psb_err_iarg_neg_
!!$ call psb_errpush(info,name,&
!!$ & i_err=(/2,sweeps,0,0,0/))
!!$ goto 9999
!!$
!!$
!!$ end if
!!$
!!$ !
!!$ ! Compute y = beta*y + alpha*ty (ty == K^(-1)*tx)
!!$ !
!!$ call psb_geaxpby(alpha,ty,beta,y,desc_data,info)
!!$
end if
if ((6*isz) <= size(work)) then
else if ((4*isz) <= size(work)) then
deallocate(ww,tx,ty)
else if ((3*isz) <= size(work)) then
deallocate(aux)
else
deallocate(ww,aux,tx,ty)
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_as_smoother_apply_vect
subroutine d_as_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
@ -178,7 +615,8 @@ contains
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T','C')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
@ -585,19 +1023,21 @@ contains
end subroutine d_as_smoother_apply
subroutine d_as_smoother_bld(a,desc_a,sm,upd,info,mold)
subroutine d_as_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_as_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_as_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
type(psb_dspmat_type) :: blck, atmp
integer :: n_row,n_col, nrow_a, nhalo, novr, data_, nzeros
@ -688,7 +1128,8 @@ contains
End if
if (info == psb_success_) &
& call sm%sv%build(a,sm%desc_data,upd,info,blck,mold=mold)
& call sm%sv%build(a,sm%desc_data,upd,info,&
& blck,amold=amold,vmold=vmold)
nrow_a = a%get_nrows()
n_row = sm%desc_data%get_local_rows()
@ -699,9 +1140,16 @@ contains
if (info == psb_success_) call blck%csclip(atmp,info,&
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
if (info == psb_success_) call psb_rwextd(n_row,sm%nd,info,b=atmp)
if (info == psb_success_) call sm%nd%cscnv(info,&
& type='csr',dupl=psb_dupl_add_)
if (info == psb_success_) then
if (present(amold)) then
call sm%nd%cscnv(info,&
& mold=amold,dupl=psb_dupl_add_)
else
call sm%nd%cscnv(info,&
& type='csr',dupl=psb_dupl_add_)
end if
end if
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='clip & psb_spcnv csr 4')
goto 9999

123
mlprec/mld_d_diag_solver.f90
Unescape Escape View File

@ -48,9 +48,11 @@ module mld_d_diag_solver
use mld_d_prec_type
type, extends(mld_d_base_solver_type) :: mld_d_diag_solver_type
real(psb_dpk_), allocatable :: d(:)
type(psb_d_vect_type), allocatable :: dv
real(psb_dpk_), allocatable :: d(:)
contains
procedure, pass(sv) :: build => d_diag_solver_bld
procedure, pass(sv) :: apply_v => d_diag_solver_apply_vect
procedure, pass(sv) :: apply_a => d_diag_solver_apply
procedure, pass(sv) :: free => d_diag_solver_free
procedure, pass(sv) :: seti => d_diag_solver_seti
@ -69,16 +71,89 @@ module mld_d_diag_solver
contains
subroutine d_diag_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_diag_solver_type), intent(inout) :: sv
type(psb_d_vect_type), intent(inout) :: x
type(psb_d_vect_type), intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act
character :: trans_
character(len=20) :: name='d_diag_solver_apply'
call psb_erractionsave(err_act)
info = psb_success_
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T','C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
n_row = desc_data%get_local_rows()
n_col = desc_data%get_local_cols()
if (x%get_nrows() < n_row) then
info = 36
call psb_errpush(info,name,i_err=(/2,nrow,0,0,0/))
goto 9999
end if
if (y%get_nrows() < n_row) then
info = 36
call psb_errpush(info,name,i_err=(/3,nrow,0,0,0/))
goto 9999
end if
if (.not.allocated(sv%dv)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: D")
goto 9999
end if
if (sv%dv%get_nrows() < n_row) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: D")
goto 9999
end if
call y%mlt(alpha,sv%dv,x,beta,info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='vect%mlt')
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_diag_solver_apply_vect
subroutine d_diag_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_diag_solver_type), intent(in) :: sv
real(psb_dpk_),intent(inout) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
real(psb_dpk_), intent(inout) :: x(:)
real(psb_dpk_), intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
@ -189,20 +264,21 @@ contains
end subroutine d_diag_solver_apply
subroutine d_diag_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_diag_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_diag_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_diag_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
integer :: n_row,n_col, nrow_a, nztota
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
@ -251,7 +327,20 @@ contains
sv%d(i) = done/sv%d(i)
end if
end do
allocate(sv%dv,stat=info)
if (info == psb_success_) then
if (present(vmold)) then
allocate(sv%dv%v,mold=vmold,stat=info)
else
allocate(psb_d_base_vect_type :: sv%dv%v,stat=info)
end if
end if
if (info == psb_success_) then
call sv%dv%bld(sv%d)
else
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate sv%dv')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'

68
mlprec/mld_d_id_solver.f90
Unescape Escape View File

@ -50,6 +50,7 @@ module mld_d_id_solver
type, extends(mld_d_base_solver_type) :: mld_d_id_solver_type
contains
procedure, pass(sv) :: build => d_id_solver_bld
procedure, pass(sv) :: apply_v => d_id_solver_apply_vect
procedure, pass(sv) :: apply_a => d_id_solver_apply
procedure, pass(sv) :: free => d_id_solver_free
procedure, pass(sv) :: seti => d_id_solver_seti
@ -68,6 +69,53 @@ module mld_d_id_solver
contains
subroutine d_id_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_id_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act
character :: trans_
character(len=20) :: name='d_id_solver_apply'
call psb_erractionsave(err_act)
info = psb_success_
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
call psb_geaxpby(alpha,x,beta,y,desc_data,info)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_id_solver_apply_vect
subroutine d_id_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
@ -92,7 +140,8 @@ contains
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T','C')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
@ -113,20 +162,21 @@ contains
end subroutine d_id_solver_apply
subroutine d_id_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_id_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_id_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target, optional :: b
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_id_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
integer :: n_row,n_col, nrow_a, nztota
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)

208
mlprec/mld_d_ilu_solver.f90
Unescape Escape View File

@ -51,11 +51,13 @@ module mld_d_ilu_solver
type, extends(mld_d_base_solver_type) :: mld_d_ilu_solver_type
type(psb_dspmat_type) :: l, u
real(psb_dpk_), allocatable :: d(:)
type(psb_d_vect_type), allocatable :: dv
integer :: fact_type, fill_in
real(psb_dpk_) :: thresh
contains
procedure, pass(sv) :: dump => d_ilu_solver_dmp
procedure, pass(sv) :: build => d_ilu_solver_bld
procedure, pass(sv) :: apply_v => d_ilu_solver_apply_vect
procedure, pass(sv) :: apply_a => d_ilu_solver_apply
procedure, pass(sv) :: free => d_ilu_solver_free
procedure, pass(sv) :: seti => d_ilu_solver_seti
@ -63,6 +65,7 @@ module mld_d_ilu_solver
procedure, pass(sv) :: setr => d_ilu_solver_setr
procedure, pass(sv) :: descr => d_ilu_solver_descr
procedure, pass(sv) :: sizeof => d_ilu_solver_sizeof
procedure, pass(sv) :: get_nzeros => d_ilu_solver_get_nzeros
procedure, pass(sv) :: default => d_ilu_solver_default
end type mld_d_ilu_solver_type
@ -71,7 +74,8 @@ module mld_d_ilu_solver
& d_ilu_solver_free, d_ilu_solver_seti, &
& d_ilu_solver_setc, d_ilu_solver_setr,&
& d_ilu_solver_descr, d_ilu_solver_sizeof, &
& d_ilu_solver_default, d_ilu_solver_dmp
& d_ilu_solver_default, d_ilu_solver_dmp, &
& d_ilu_solver_apply_vect, d_ilu_solver_get_nzeros
character(len=15), parameter, private :: &
@ -143,6 +147,142 @@ contains
end subroutine d_ilu_solver_check
subroutine d_ilu_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_ilu_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
type(psb_d_vect_type) :: wv
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act
character :: trans_
character(len=20) :: name='d_ilu_solver_apply'
call psb_erractionsave(err_act)
info = psb_success_
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
n_row = desc_data%get_local_rows()
n_col = desc_data%get_local_cols()
if (x%get_nrows() < n_row) then
info = 36
call psb_errpush(info,name,i_err=(/2,n_row,0,0,0/))
goto 9999
end if
if (y%get_nrows() < n_row) then
info = 36
call psb_errpush(info,name,i_err=(/3,n_row,0,0,0/))
goto 9999
end if
if (.not.allocated(sv%dv)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: DV")
goto 9999
end if
if (sv%dv%get_nrows() < n_row) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: DV")
goto 9999
end if
if (n_col <= size(work)) then
ww => work(1:n_col)
if ((4*n_col+n_col) <= size(work)) then
aux => work(n_col+1:)
else
allocate(aux(4*n_col),stat=info)
endif
else
allocate(ww(n_col),aux(4*n_col),stat=info)
endif
if (info == psb_success_) allocate(wv%v,mold=x%v)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
call wv%bld(n_col)
select case(trans_)
case('N')
call psb_spsm(done,sv%l,x,dzero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=sv%dv,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%u,wv,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_, work=aux)
case('T')
call psb_spsm(done,sv%u,x,dzero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=sv%dv,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%l,wv,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case('C')
call psb_spsm(done,sv%u,x,dzero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=sv%dv,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%l,wv,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case default
call psb_errpush(psb_err_internal_error_,name,a_err='Invalid TRANS in ILU subsolve')
goto 9999
end select
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,a_err='Error in subsolve')
goto 9999
endif
if (n_col <= size(work)) then
if ((4*n_col+n_col) <= size(work)) then
else
deallocate(aux)
endif
else
deallocate(ww,aux)
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_ilu_solver_apply_vect
subroutine d_ilu_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
@ -207,7 +347,14 @@ contains
if (info == psb_success_) call psb_spsm(alpha,sv%u,ww,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_, work=aux)
case('T','C')
case('T')
call psb_spsm(done,sv%u,x,dzero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%l,ww,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case('C')
! For real this is the same of T but in the future we will move to
! a preprocessed version
call psb_spsm(done,sv%u,x,dzero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%l,ww,beta,y,desc_data,info,&
@ -246,20 +393,21 @@ contains
end subroutine d_ilu_solver_apply
subroutine d_ilu_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_ilu_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_ilu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target, optional :: b
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_ilu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
integer :: n_row,n_col, nrow_a, nztota
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
@ -301,11 +449,20 @@ contains
endif
if (.not.allocated(sv%d)) then
allocate(sv%d(n_row),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
endif
if (info == psb_success_) then
allocate(sv%dv, stat=info)
if (info == 0) then
if (present(vmold)) then
allocate(sv%dv%v,mold=vmold,stat=info)
else
allocate(psb_d_base_vect_type :: sv%dv%v,stat=info)
end if
end if
end if
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
endif
@ -403,10 +560,11 @@ contains
call sv%l%trim()
call sv%u%set_asb()
call sv%u%trim()
call sv%dv%bld(sv%d)
if (present(mold)) then
call sv%l%cscnv(info,mold=mold)
call sv%u%cscnv(info,mold=mold)
if (present(amold)) then
call sv%l%cscnv(info,mold=amold)
call sv%u%cscnv(info,mold=amold)
end if
if (debug_level >= psb_debug_outer_) &
@ -626,6 +784,22 @@ contains
return
end subroutine d_ilu_solver_descr
function d_ilu_solver_get_nzeros(sv) result(val)
use psb_base_mod
implicit none
! Arguments
class(mld_d_ilu_solver_type), intent(in) :: sv
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(sv%dv)) val = val + sv%dv%get_nrows()
val = val + sv%l%get_nzeros()
val = val + sv%u%get_nzeros()
return
end function d_ilu_solver_get_nzeros
function d_ilu_solver_sizeof(sv) result(val)
use psb_base_mod
implicit none

15
mlprec/mld_d_inner_mod.f90
Unescape Escape View File

@ -50,16 +50,17 @@ module mld_d_inner_mod
interface mld_mlprec_bld
subroutine mld_dmlprec_bld(a,desc_a,prec,info, mold)
subroutine mld_dmlprec_bld(a,desc_a,prec,info, amold, vmold)
use psb_base_mod, only : psb_dspmat_type, psb_desc_type, &
& psb_dpk_, psb_d_base_sparse_mat
& psb_dpk_, psb_d_base_sparse_mat, psb_d_base_vect_type
use mld_d_prec_type, only : mld_dprec_type
implicit none
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type), intent(inout), target :: prec
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type), intent(inout), target :: prec
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
!!$ character, intent(in),optional :: upd
end subroutine mld_dmlprec_bld
end interface mld_mlprec_bld

208
mlprec/mld_d_jac_smoother.f90
Unescape Escape View File

@ -54,26 +54,188 @@ module mld_d_jac_smoother
type(psb_dspmat_type) :: nd
integer :: nnz_nd_tot
contains
procedure, pass(sm) :: build => d_jac_smoother_bld
procedure, pass(sm) :: apply => d_jac_smoother_apply
procedure, pass(sm) :: free => d_jac_smoother_free
procedure, pass(sm) :: seti => d_jac_smoother_seti
procedure, pass(sm) :: setc => d_jac_smoother_setc
procedure, pass(sm) :: setr => d_jac_smoother_setr
procedure, pass(sm) :: descr => d_jac_smoother_descr
procedure, pass(sm) :: sizeof => d_jac_smoother_sizeof
procedure, pass(sm) :: build => d_jac_smoother_bld
procedure, pass(sm) :: apply_v => d_jac_smoother_apply_vect
procedure, pass(sm) :: apply_a => d_jac_smoother_apply
procedure, pass(sm) :: free => d_jac_smoother_free
procedure, pass(sm) :: seti => d_jac_smoother_seti
procedure, pass(sm) :: setc => d_jac_smoother_setc
procedure, pass(sm) :: setr => d_jac_smoother_setr
procedure, pass(sm) :: descr => d_jac_smoother_descr
procedure, pass(sm) :: sizeof => d_jac_smoother_sizeof
end type mld_d_jac_smoother_type
private :: d_jac_smoother_bld, d_jac_smoother_apply, &
& d_jac_smoother_free, d_jac_smoother_seti, &
& d_jac_smoother_setc, d_jac_smoother_setr,&
& d_jac_smoother_descr, d_jac_smoother_sizeof
& d_jac_smoother_descr, d_jac_smoother_sizeof, &
& d_jac_smoother_apply_vect
contains
subroutine d_jac_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_jac_smoother_type), intent(inout) :: sm
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
integer, intent(in) :: sweeps
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
type(psb_d_vect_type) :: tx, ty
real(psb_dpk_), pointer :: ww(:), aux(:)
integer :: ictxt,np,me,i, err_act
character :: trans_
character(len=20) :: name='d_jac_smoother_apply'
call psb_erractionsave(err_act)
info = psb_success_
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T')
case('C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
if (.not.allocated(sm%sv)) then
info = 1121
call psb_errpush(info,name)
goto 9999
end if
n_row = desc_data%get_local_rows()
n_col = desc_data%get_local_cols()
if (n_col <= size(work)) then
ww => work(1:n_col)
if ((4*n_col+n_col) <= size(work)) then
aux => work(n_col+1:)
else
allocate(aux(4*n_col),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
endif
else
allocate(ww(n_col),aux(4*n_col),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
endif
if ((sweeps == 1).or.(sm%nnz_nd_tot==0)) then
call sm%sv%apply(alpha,x,beta,y,desc_data,trans_,aux,info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,&
& name,a_err='Error in sub_aply Jacobi Sweeps = 1')
goto 9999
endif
else if (sweeps > 1) then
!
!
! Apply multiple sweeps of a block-Jacobi solver
! to compute an approximate solution of a linear system.
!
!
allocate(tx%v,mold=x%v,stat=info)
if (info == psb_success_) allocate(ty%v,mold=x%v,stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/2*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
call tx%bld(x%get_nrows())
call ty%bld(x%get_nrows())
do i=1, sweeps
!
! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
! block diagonal part and the remaining part of the local matrix
! and Y(j) is the approximate solution at sweep j.
!
call psb_geaxpby(done,x,dzero,ty,desc_data,info)
call psb_spmm(-done,sm%nd,tx,done,ty,desc_data,info,work=aux,trans=trans_)
if (info /= psb_success_) exit
call sm%sv%apply(done,ty,dzero,tx,desc_data,trans_,aux,info)
if (info /= psb_success_) exit
end do
if (info == psb_success_) call psb_geaxpby(alpha,tx,beta,y,desc_data,info)
if (info /= psb_success_) then
info=psb_err_internal_error_
call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
goto 9999
end if
call tx%free(info)
if (info == psb_success_) call ty%free(info)
if (info /= psb_success_) then
info=psb_err_internal_error_
call psb_errpush(info,name,a_err='final cleanup with Jacobi sweeps > 1')
goto 9999
end if
else
info = psb_err_iarg_neg_
call psb_errpush(info,name,&
& i_err=(/2,sweeps,0,0,0/))
goto 9999
endif
if (n_col <= size(work)) then
if ((4*n_col+n_col) <= size(work)) then
else
deallocate(aux)
endif
else
deallocate(ww,aux)
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_jac_smoother_apply_vect
subroutine d_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
@ -228,19 +390,20 @@ contains
end subroutine d_jac_smoother_apply
subroutine d_jac_smoother_bld(a,desc_a,sm,upd,info,mold)
subroutine d_jac_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
use psb_base_mod
use mld_d_diag_solver
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_jac_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_jac_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
integer :: n_row,n_col, nrow_a, nztota, nzeros
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
@ -268,15 +431,22 @@ contains
call a%csclip(sm%nd,info,&
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
end select
if (info == psb_success_) call sm%nd%cscnv(info,&
& type='csr',dupl=psb_dupl_add_)
if (info == psb_success_) then
if (present(amold)) then
call sm%nd%cscnv(info,&
& mold=amold,dupl=psb_dupl_add_)
else
call sm%nd%cscnv(info,&
& type='csr',dupl=psb_dupl_add_)
endif
end if
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='clip & psb_spcnv csr 4')
goto 9999
end if
call sm%sv%build(a,desc_a,upd,info,mold=mold)
call sm%sv%build(a,desc_a,upd,info,amold=amold,vmold=vmold)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='solver build')

15
mlprec/mld_d_prec_mod.f90
Unescape Escape View File

@ -111,16 +111,17 @@ module mld_d_prec_mod
end interface
interface mld_precbld
subroutine mld_dprecbld(a,desc_a,prec,info,mold)
subroutine mld_dprecbld(a,desc_a,prec,info,amold,vmold)
use psb_base_mod, only : psb_dspmat_type, psb_desc_type, &
& psb_dpk_, psb_d_base_sparse_mat
& psb_dpk_, psb_d_base_sparse_mat, psb_d_base_vect_type
use mld_d_prec_type, only : mld_dprec_type
implicit none
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type), intent(inout), target :: prec
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type), intent(inout), target :: prec
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
!!$ character, intent(in),optional :: upd
end subroutine mld_dprecbld
end interface

200
mlprec/mld_d_prec_type.f90
Unescape Escape View File

@ -60,6 +60,7 @@
module mld_d_prec_type
use mld_base_prec_type
use psb_base_mod, only : psb_d_vect_type, psb_d_base_vect_type
!
! Type: mld_Tprec_type.
!
@ -191,6 +192,7 @@ module mld_d_prec_type
procedure, pass(sv) :: default => d_base_solver_default
procedure, pass(sv) :: descr => d_base_solver_descr
procedure, pass(sv) :: sizeof => d_base_solver_sizeof
procedure, pass(sv) :: get_nzeros => d_base_solver_get_nzeros
end type mld_d_base_solver_type
type mld_d_base_smoother_type
@ -199,7 +201,9 @@ module mld_d_prec_type
procedure, pass(sm) :: check => d_base_smoother_check
procedure, pass(sm) :: dump => d_base_smoother_dmp
procedure, pass(sm) :: build => d_base_smoother_bld
procedure, pass(sm) :: apply => d_base_smoother_apply
procedure, pass(sm) :: apply_v => d_base_smoother_apply_vect
procedure, pass(sm) :: apply_a => d_base_smoother_apply
generic, public :: apply => apply_a, apply_v
procedure, pass(sm) :: free => d_base_smoother_free
procedure, pass(sm) :: seti => d_base_smoother_seti
procedure, pass(sm) :: setc => d_base_smoother_setc
@ -208,6 +212,7 @@ module mld_d_prec_type
procedure, pass(sm) :: default => d_base_smoother_default
procedure, pass(sm) :: descr => d_base_smoother_descr
procedure, pass(sm) :: sizeof => d_base_smoother_sizeof
procedure, pass(sm) :: get_nzeros => d_base_smoother_get_nzeros
end type mld_d_base_smoother_type
type mld_donelev_type
@ -227,6 +232,7 @@ module mld_d_prec_type
procedure, pass(lv) :: setr => d_base_onelev_setr
procedure, pass(lv) :: setc => d_base_onelev_setc
generic, public :: set => seti, setr, setc
procedure, pass(lv) :: get_nzeros => d_base_onelev_get_nzeros
end type mld_donelev_type
type, extends(psb_dprec_type) :: mld_dprec_type
@ -234,11 +240,13 @@ module mld_d_prec_type
real(psb_dpk_) :: op_complexity=-done
type(mld_donelev_type), allocatable :: precv(:)
contains
procedure, pass(prec) :: d_apply2_vect => mld_d_apply2_vect
procedure, pass(prec) :: d_apply2v => mld_d_apply2v
procedure, pass(prec) :: d_apply1v => mld_d_apply1v
procedure, pass(prec) :: dump => mld_d_dump
procedure, pass(prec) :: get_complexity => mld_d_get_compl
procedure, pass(prec) :: cmp_complexity => mld_d_cmp_compl
procedure, pass(prec) :: get_nzeros => mld_d_get_nzeros
end type mld_dprec_type
private :: d_base_solver_bld, d_base_solver_apply, &
@ -246,18 +254,20 @@ module mld_d_prec_type
& d_base_solver_setc, d_base_solver_setr, &
& d_base_solver_descr, d_base_solver_sizeof, &
& d_base_solver_default, d_base_solver_check,&
& d_base_solver_dmp, &
& d_base_solver_dmp, d_base_solver_apply_vect, &
& d_base_smoother_bld, d_base_smoother_apply, &
& d_base_smoother_free, d_base_smoother_seti, &
& d_base_smoother_setc, d_base_smoother_setr,&
& d_base_smoother_descr, d_base_smoother_sizeof, &
& d_base_smoother_default, d_base_smoother_check, &
& d_base_smoother_dmp, &
& d_base_smoother_dmp, d_base_smoother_apply_vect, &
& d_base_onelev_seti, d_base_onelev_setc, &
& d_base_onelev_setr, d_base_onelev_check, &
& d_base_onelev_default, d_base_onelev_dump, &
& d_base_onelev_descr, mld_d_dump, &
& mld_d_get_compl, mld_d_cmp_compl
& d_base_onelev_descr, mld_d_dump, &
& mld_d_get_compl, mld_d_cmp_compl,&
& mld_d_get_nzeros, d_base_onelev_get_nzeros, &
& d_base_smoother_get_nzeros, d_base_solver_get_nzeros
!
@ -282,6 +292,18 @@ module mld_d_prec_type
end interface
interface mld_precaply
subroutine mld_dprecaply_vect(prec,x,y,desc_data,info,trans,work)
use psb_base_mod, only : psb_dspmat_type, psb_desc_type, &
& psb_dpk_, psb_d_vect_type
import mld_dprec_type
type(psb_desc_type),intent(in) :: desc_data
type(mld_dprec_type), intent(inout) :: prec
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_),intent(inout), optional, target :: work(:)
end subroutine mld_dprecaply_vect
subroutine mld_dprecaply(prec,x,y,desc_data,info,trans,work)
use psb_base_mod, only : psb_dspmat_type, psb_desc_type, psb_dpk_
import mld_dprec_type
@ -309,6 +331,48 @@ contains
! Function returning the size of the mld_prec_type data structure
!
function d_base_solver_get_nzeros(sv) result(val)
implicit none
class(mld_d_base_solver_type), intent(in) :: sv
integer(psb_long_int_k_) :: val
integer :: i
val = 0
end function d_base_solver_get_nzeros
function d_base_smoother_get_nzeros(sm) result(val)
implicit none
class(mld_d_base_smoother_type), intent(in) :: sm
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(sm%sv)) &
& val = sm%sv%get_nzeros()
end function d_base_smoother_get_nzeros
function d_base_onelev_get_nzeros(lv) result(val)
implicit none
class(mld_donelev_type), intent(in) :: lv
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(lv%sm)) &
& val = lv%sm%get_nzeros()
end function d_base_onelev_get_nzeros
function mld_d_get_nzeros(prec) result(val)
implicit none
class(mld_dprec_type), intent(in) :: prec
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(prec%precv)) then
do i=1, size(prec%precv)
val = val + prec%precv(i)%get_nzeros()
end do
end if
end function mld_d_get_nzeros
function mld_dprec_sizeof(prec) result(val)
implicit none
type(mld_dprec_type), intent(in) :: prec
@ -451,6 +515,10 @@ contains
endif
call p%precv(1)%sm%descr(info,iout=iout_)
if (nlev == 1) then
if (p%precv(1)%parms%sweeps > 1) then
write(iout_,*) ' Number of sweeps : ',&
& p%precv(1)%parms%sweeps
end if
write(iout_,*)
return
end if
@ -688,6 +756,47 @@ contains
end subroutine d_base_smoother_apply
subroutine d_base_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,&
& trans,sweeps,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_base_smoother_type), intent(inout) :: sm
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
integer, intent(in) :: sweeps
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='d_base_smoother_apply'
call psb_erractionsave(err_act)
info = psb_success_
if (allocated(sm%sv)) then
call sm%sv%apply(alpha,x,beta,y,desc_data,trans,work,info)
else
info = 1121
endif
if (info /= psb_success_) then
call psb_errpush(info,name)
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine d_base_smoother_apply_vect
subroutine d_base_smoother_check(sm,info)
use psb_base_mod
@ -830,19 +939,20 @@ contains
return
end subroutine d_base_smoother_setr
subroutine d_base_smoother_bld(a,desc_a,sm,upd,info,mold)
subroutine d_base_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_base_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
Integer :: err_act
character(len=20) :: name='d_base_smoother_bld'
@ -850,7 +960,7 @@ contains
info = psb_success_
if (allocated(sm%sv)) then
call sm%sv%build(a,desc_a,upd,info,mold=mold)
call sm%sv%build(a,desc_a,upd,info,amold=amold,vmold=vmold)
else
info = 1121
call psb_errpush(info,name)
@ -989,7 +1099,6 @@ contains
end subroutine d_base_smoother_default
subroutine d_base_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
@ -1023,17 +1132,16 @@ contains
end subroutine d_base_solver_apply
subroutine d_base_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_base_solver_type), intent(in) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_base_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='d_base_solver_apply'
@ -1057,20 +1165,21 @@ contains
end subroutine d_base_solver_apply_vect
subroutine d_base_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_base_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_base_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_base_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
Integer :: err_act
character(len=20) :: name='d_base_solver_bld'
@ -1287,6 +1396,43 @@ contains
return
end subroutine d_base_solver_default
subroutine mld_d_apply2_vect(prec,x,y,desc_data,info,trans,work)
use psb_base_mod
type(psb_desc_type),intent(in) :: desc_data
class(mld_dprec_type), intent(inout) :: prec
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_),intent(inout), optional, target :: work(:)
Integer :: err_act
character(len=20) :: name='d_prec_apply'
call psb_erractionsave(err_act)
select type(prec)
type is (mld_dprec_type)
call mld_precaply(prec,x,y,desc_data,info,trans,work)
class default
info = psb_err_missing_override_method_
call psb_errpush(info,name)
goto 9999
end select
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine mld_d_apply2_vect
subroutine mld_d_apply2v(prec,x,y,desc_data,info,trans,work)
use psb_base_mod

17
mlprec/mld_d_slu_solver.f90
Unescape Escape View File

@ -185,20 +185,21 @@ contains
end subroutine d_slu_solver_apply
subroutine d_slu_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_slu_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_slu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target, optional :: b
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_slu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
type(psb_dspmat_type) :: atmp
type(psb_d_csr_sparse_mat) :: acsr

17
mlprec/mld_d_sludist_solver.f90
Unescape Escape View File

@ -185,20 +185,21 @@ contains
end subroutine d_sludist_solver_apply
subroutine d_sludist_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_sludist_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_sludist_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target, optional :: b
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_sludist_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
type(psb_dspmat_type) :: atmp
type(psb_d_csr_sparse_mat) :: acsr

17
mlprec/mld_d_umf_solver.f90
Unescape Escape View File

@ -185,20 +185,21 @@ contains
end subroutine d_umf_solver_apply
subroutine d_umf_solver_bld(a,desc_a,sv,upd,info,b,mold)
subroutine d_umf_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_umf_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type), intent(in), target, optional :: b
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_umf_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
type(psb_dspmat_type) :: atmp
type(psb_d_csc_sparse_mat) :: acsc

19
mlprec/mld_dmlprec_bld.f90
Unescape Escape View File

@ -63,7 +63,7 @@
! info - integer, output.
! Error code.
!
subroutine mld_dmlprec_bld(a,desc_a,p,info,mold)
subroutine mld_dmlprec_bld(a,desc_a,p,info,amold,vmold)
use psb_base_mod
use mld_d_inner_mod, mld_protect_name => mld_dmlprec_bld
@ -72,11 +72,12 @@ subroutine mld_dmlprec_bld(a,desc_a,p,info,mold)
Implicit None
! Arguments
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
!!$ character, intent(in), optional :: upd
! Local Variables
@ -309,10 +310,10 @@ subroutine mld_dmlprec_bld(a,desc_a,p,info,mold)
! Test version for beginning of OO stuff.
!
call p%precv(i)%sm%build(p%precv(i)%base_a,p%precv(i)%base_desc,&
& 'F',info,mold=mold)
& 'F',info,amold=amold,vmold=vmold)
if ((info == psb_success_).and.(i>1).and.(present(mold))) then
call psb_map_cscnv(p%precv(i)%map,info,mold=mold)
if ((info == psb_success_).and.(i>1).and.(present(amold))) then
call psb_map_cscnv(p%precv(i)%map,info,mold=amold)
end if
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&

102
mlprec/mld_dprecaply.f90
Unescape Escape View File

@ -263,3 +263,105 @@ subroutine mld_dprecaply1(prec,x,desc_data,info,trans)
end if
return
end subroutine mld_dprecaply1
subroutine mld_dprecaply_vect(prec,x,y,desc_data,info,trans,work)
use psb_base_mod
use mld_d_inner_mod
implicit none
! Arguments
type(psb_desc_type),intent(in) :: desc_data
type(mld_dprec_type), intent(inout) :: prec
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_),intent(inout), optional, target :: work(:)
! Local variables
character :: trans_
real(psb_dpk_), pointer :: work_(:)
integer :: ictxt,np,me,err_act,iwsz
character(len=20) :: name
name='mld_dprecaply'
info = psb_success_
call psb_erractionsave(err_act)
ictxt = psb_cd_get_context(desc_data)
call psb_info(ictxt, me, np)
if (present(trans)) then
trans_=psb_toupper(trans)
else
trans_='N'
end if
if (present(work)) then
work_ => work
else
iwsz = max(1,4*psb_cd_get_local_cols(desc_data))
allocate(work_(iwsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_alloc_request_,name,i_err=(/iwsz,0,0,0,0/),&
&a_err='real(psb_dpk_)')
goto 9999
end if
end if
if (.not.(allocated(prec%precv))) then
!! Error 1: should call mld_dprecbld
info=3112
call psb_errpush(info,name)
goto 9999
end if
if (size(prec%precv) >1) then
!
! Number of levels > 1: apply the multilevel preconditioner
!
!!$ call mld_mlprec_aply(done,prec,x,dzero,y,desc_data,trans_,work_,info)
info = psb_err_missing_override_method_
if(info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='mld_dmlprec_aply')
goto 9999
end if
else if (size(prec%precv) == 1) then
!
! Number of levels = 1: apply the base preconditioner
!
call prec%precv(1)%sm%apply(done,x,dzero,y,desc_data,trans_,&
& prec%precv(1)%parms%sweeps, work_,info)
else
info = psb_err_from_subroutine_ai_
call psb_errpush(info,name,a_err='Invalid size of precv',&
& i_Err=(/size(prec%precv),0,0,0,0/))
goto 9999
endif
! If the original distribution has an overlap we should fix that.
!!$ call psb_halo(y,desc_data,info,data=psb_comm_mov_)
if (present(work)) then
else
deallocate(work_)
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act.eq.psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine mld_dprecaply_vect

17
mlprec/mld_dprecbld.f90
Unescape Escape View File

@ -58,7 +58,7 @@
! info - integer, output.
! Error code.
!
subroutine mld_dprecbld(a,desc_a,p,info,mold)
subroutine mld_dprecbld(a,desc_a,p,info,amold,vmold)
use psb_base_mod
use mld_d_inner_mod
@ -67,11 +67,12 @@ subroutine mld_dprecbld(a,desc_a,p,info,mold)
Implicit None
! Arguments
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: mold
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
type(mld_dprec_type),intent(inout), target :: p
integer, intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
!!$ character, intent(in), optional :: upd
! Local Variables
@ -171,7 +172,7 @@ subroutine mld_dprecbld(a,desc_a,p,info,mold)
goto 9999
endif
call p%precv(1)%sm%build(a,desc_a,upd_,info,mold=mold)
call p%precv(1)%sm%build(a,desc_a,upd_,info,amold=amold,vmold=vmold)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='One level preconditioner build.')
@ -185,7 +186,7 @@ subroutine mld_dprecbld(a,desc_a,p,info,mold)
!
! Build the multilevel preconditioner
!
call mld_mlprec_bld(a,desc_a,p,info,mold=mold)
call mld_mlprec_bld(a,desc_a,p,info,amold=amold,vmold=vmold)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&

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