module psb_s_bjacprec
use psb_s_base_prec_mod
type, extends(psb_s_base_prec_type) :: psb_s_bjac_prec_type
integer, allocatable :: iprcparm(:)
type(psb_sspmat_type), allocatable :: av(:)
real(psb_spk_), allocatable :: d(:)
type(psb_s_vect_type), allocatable :: dv
contains
procedure, pass(prec) :: s_apply_v => psb_s_bjac_apply_vect
procedure, pass(prec) :: s_apply => psb_s_bjac_apply
procedure, pass(prec) :: precbld => psb_s_bjac_precbld
procedure, pass(prec) :: precinit => psb_s_bjac_precinit
procedure, pass(prec) :: precseti => psb_s_bjac_precseti
procedure, pass(prec) :: precsetr => psb_s_bjac_precsetr
procedure, pass(prec) :: precsetc => psb_s_bjac_precsetc
procedure, pass(prec) :: precfree => psb_s_bjac_precfree
procedure, pass(prec) :: precdescr => psb_s_bjac_precdescr
procedure, pass(prec) :: dump => psb_s_bjac_dump
procedure, pass(prec) :: sizeof => psb_s_bjac_sizeof
end type psb_s_bjac_prec_type
private :: psb_s_bjac_apply, psb_s_bjac_precbld, psb_s_bjac_precseti,&
& psb_s_bjac_precsetr, psb_s_bjac_precsetc, psb_s_bjac_sizeof,&
& psb_s_bjac_precinit, psb_s_bjac_precfree, psb_s_bjac_precdescr,&
& psb_s_bjac_dump, psb_s_bjac_apply_vect
character(len=15), parameter, private :: &
& fact_names(0:2)=(/'None ','ILU(n) ',&
& 'ILU(eps) '/)
contains
subroutine psb_s_bjac_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
use psb_base_mod
type(psb_desc_type),intent(in) :: desc_data
class(psb_s_bjac_prec_type), intent(inout) :: prec
real(psb_spk_),intent(in) :: alpha,beta
type(psb_s_vect_type),intent(inout) :: x
type(psb_s_vect_type),intent(inout) :: y
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_spk_),intent(inout), optional, target :: work(:)
! Local variables
integer :: n_row,n_col
real(psb_spk_), pointer :: ww(:), aux(:)
type(psb_s_vect_type) :: wv
integer :: ictxt,np,me, err_act, int_err(5)
integer :: debug_level, debug_unit
character :: trans_
character(len=20) :: name='d_bjac_prec_apply'
character(len=20) :: ch_err
info = psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_data%get_context()
call psb_info(ictxt, me, np)
trans_ = psb_toupper(trans)
select case(trans_)
case('N','T','C')
! Ok
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(prec%d)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: D")
goto 9999
end if
if (size(prec%d) < n_row) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner: D")
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
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
end if
call wv%bld(n_col,mold=x%v)
select case(prec%iprcparm(psb_f_type_))
case(psb_f_ilu_n_)
select case(trans_)
case('N')
call psb_spsm(sone,prec%av(psb_l_pr_),x,szero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv,choice=psb_none_,work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_u_pr_),wv,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_, work=aux)
case('T')
call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv,choice=psb_none_, work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),wv,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case('C')
call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,wv,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv,choice=psb_none_, work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),wv,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
end select
if (info /= psb_success_) then
ch_err="psb_spsm"
goto 9999
end if
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Invalid factorization')
goto 9999
end select
call psb_halo(y,desc_data,info,data=psb_comm_mov_)
call wv%free(info)
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_errpush(info,name,i_err=int_err,a_err=ch_err)
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_s_bjac_apply_vect
subroutine psb_s_bjac_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
use psb_base_mod
type(psb_desc_type),intent(in) :: desc_data
class(psb_s_bjac_prec_type), intent(in) :: prec
real(psb_spk_),intent(in) :: alpha,beta
real(psb_spk_),intent(inout) :: x(:)
real(psb_spk_),intent(inout) :: y(:)
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_spk_),intent(inout), optional, target :: work(:)
! Local variables
integer :: n_row,n_col
real(psb_spk_), pointer :: ww(:), aux(:)
integer :: ictxt,np,me, err_act, int_err(5)
integer :: debug_level, debug_unit
character :: trans_
character(len=20) :: name='s_bjac_prec_apply'
character(len=20) :: ch_err
info = psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_data%get_context()
call psb_info(ictxt, me, np)
trans_ = psb_toupper(trans)
select case(trans_)
case('N','T','C')
! Ok
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 (size(x) < n_row) then
info = 36
call psb_errpush(info,name,i_err=(/2,n_row,0,0,0/))
goto 9999
end if
if (size(y) < 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(prec%d)) then
!!$ info = 1124
!!$ call psb_errpush(info,name,a_err="preconditioner: D")
!!$ goto 9999
!!$ end if
!!$ if (size(prec%d) < n_row) then
!!$ info = 1124
!!$ call psb_errpush(info,name,a_err="preconditioner: D")
!!$ 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)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
end if
endif
else
allocate(ww(n_col),aux(4*n_col),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
end if
endif
select case(prec%iprcparm(psb_f_type_))
case(psb_f_ilu_n_)
select case(trans_)
case('N')
call psb_spsm(sone,prec%av(psb_l_pr_),x,szero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv%v%v,choice=psb_none_,work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_u_pr_),ww,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_, work=aux)
case('T')
call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv%v%v,choice=psb_none_, work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),ww,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case('C')
call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=prec%dv%v%v,choice=psb_none_, work=aux)
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),ww,&
& beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
end select
if (info /= psb_success_) then
ch_err="psb_spsm"
goto 9999
end if
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Invalid factorization')
goto 9999
end select
call psb_halo(y,desc_data,info,data=psb_comm_mov_)
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_errpush(info,name,i_err=int_err,a_err=ch_err)
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_s_bjac_apply
subroutine psb_s_bjac_precinit(prec,info)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type),intent(inout) :: prec
integer, intent(out) :: info
Integer :: err_act, nrow
character(len=20) :: name='s_null_precinit'
call psb_erractionsave(err_act)
info = psb_success_
call psb_realloc(psb_ifpsz,prec%iprcparm,info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_Errpush(info,name)
goto 9999
end if
prec%iprcparm(:) = 0
prec%iprcparm(psb_p_type_) = psb_bjac_
prec%iprcparm(psb_f_type_) = psb_f_ilu_n_
prec%iprcparm(psb_ilu_fill_in_) = 0
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 psb_s_bjac_precinit
subroutine psb_s_bjac_precbld(a,desc_a,prec,info,upd,amold,afmt,vmold)
use psb_base_mod
use psb_prec_mod, only : psb_ilu_fct
Implicit None
type(psb_sspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
class(psb_s_bjac_prec_type),intent(inout) :: prec
integer, intent(out) :: info
character, intent(in), optional :: upd
character(len=*), intent(in), optional :: afmt
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
! .. Local Scalars ..
integer :: i, m
integer :: int_err(5)
character :: trans, unitd
type(psb_s_csr_sparse_mat), allocatable :: lf, uf
real(psb_spk_), allocatable :: dd(:)
integer nztota, err_act, n_row, nrow_a,n_col, nhalo
integer :: ictxt,np,me
character(len=20) :: name='s_bjac_precbld'
character(len=20) :: ch_err
if(psb_get_errstatus() /= 0) return
info = psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
call prec%set_ctxt(ictxt)
m = a%get_nrows()
if (m < 0) then
info = psb_err_iarg_neg_
int_err(1) = 1
int_err(2) = m
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
trans = 'N'
unitd = 'U'
select case(prec%iprcparm(psb_f_type_))
case(psb_f_ilu_n_)
if (allocated(prec%av)) then
if (size(prec%av) < psb_bp_ilu_avsz) then
do i=1,size(prec%av)
call prec%av(i)%free()
enddo
deallocate(prec%av,stat=info)
endif
end if
if (.not.allocated(prec%av)) then
allocate(prec%av(psb_max_avsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_alloc_dealloc_,name)
goto 9999
end if
endif
nrow_a = desc_a%get_local_rows()
nztota = a%get_nzeros()
n_col = desc_a%get_local_cols()
nhalo = n_col-nrow_a
n_row = nrow_a
allocate(lf,uf,stat=info)
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_sp_all'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
allocate(dd(n_row),stat=info)
if (info == psb_success_) then
allocate(prec%dv, stat=info)
if (info == 0) then
if (present(vmold)) then
allocate(prec%dv%v,mold=vmold,stat=info)
else
allocate(psb_s_base_vect_type :: prec%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
! This is where we have no renumbering, thus no need
call psb_ilu_fct(a,lf,uf,dd,info)
if(info == psb_success_) then
call prec%av(psb_l_pr_)%mv_from(lf)
call prec%av(psb_u_pr_)%mv_from(uf)
call prec%av(psb_l_pr_)%set_asb()
call prec%av(psb_u_pr_)%set_asb()
call prec%av(psb_l_pr_)%trim()
call prec%av(psb_u_pr_)%trim()
call prec%dv%bld(dd)
call move_alloc(dd,prec%d)
else
info=psb_err_from_subroutine_
ch_err='psb_ilu_fct'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
case(psb_f_none_)
info=psb_err_from_subroutine_
ch_err='Inconsistent prec psb_f_none_'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
case default
info=psb_err_from_subroutine_
ch_err='Unknown psb_f_type_'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end select
if (present(amold)) then
call prec%av(psb_l_pr_)%cscnv(info,mold=amold)
call prec%av(psb_u_pr_)%cscnv(info,mold=amold)
else if (present(afmt)) then
call prec%av(psb_l_pr_)%cscnv(info,type=afmt)
call prec%av(psb_u_pr_)%cscnv(info,type=afmt)
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 psb_s_bjac_precbld
subroutine psb_s_bjac_precseti(prec,what,val,info)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type),intent(inout) :: prec
integer, intent(in) :: what
integer, intent(in) :: val
integer, intent(out) :: info
Integer :: err_act, nrow
character(len=20) :: name='s_bjac_precset'
call psb_erractionsave(err_act)
info = psb_success_
if (.not.allocated(prec%iprcparm)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner")
goto 9999
end if
select case(what)
case (psb_f_type_)
if (prec%iprcparm(psb_p_type_) /= psb_bjac_) then
write(psb_err_unit,*) 'WHAT is invalid for current preconditioner ',&
& prec%iprcparm(psb_p_type_),&
& 'ignoring user specification'
return
endif
prec%iprcparm(psb_f_type_) = val
case (psb_ilu_fill_in_)
if ((prec%iprcparm(psb_p_type_) /= psb_bjac_).or.&
& (prec%iprcparm(psb_f_type_) /= psb_f_ilu_n_)) then
write(psb_err_unit,*) 'WHAT is invalid for current preconditioner ',&
& prec%iprcparm(psb_p_type_),&
& 'ignoring user specification'
return
endif
prec%iprcparm(psb_ilu_fill_in_) = val
case default
write(psb_err_unit,*) 'WHAT is invalid, ignoring user specification'
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 psb_s_bjac_precseti
subroutine psb_s_bjac_precsetr(prec,what,val,info)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type),intent(inout) :: prec
integer, intent(in) :: what
real(psb_spk_), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act, nrow
character(len=20) :: name='s_bjac_precset'
call psb_erractionsave(err_act)
info = psb_success_
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 psb_s_bjac_precsetr
subroutine psb_s_bjac_precsetc(prec,what,val,info)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type),intent(inout) :: prec
integer, intent(in) :: what
character(len=*), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act, nrow
character(len=20) :: name='s_bjac_precset'
call psb_erractionsave(err_act)
info = psb_success_
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 psb_s_bjac_precsetc
subroutine psb_s_bjac_precfree(prec,info)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type), intent(inout) :: prec
integer, intent(out) :: info
Integer :: err_act, i
character(len=20) :: name='s_bjac_precfree'
call psb_erractionsave(err_act)
info = psb_success_
if (allocated(prec%av)) then
do i=1,size(prec%av)
call prec%av(i)%free()
enddo
deallocate(prec%av,stat=info)
end if
if (allocated(prec%d)) then
deallocate(prec%d,stat=info)
end if
if (allocated(prec%dv)) then
call prec%dv%free(info)
if (info == 0) deallocate(prec%dv,stat=info)
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 psb_s_bjac_precfree
subroutine psb_s_bjac_precdescr(prec,iout)
use psb_base_mod
Implicit None
class(psb_s_bjac_prec_type), intent(in) :: prec
integer, intent(in), optional :: iout
Integer :: err_act, nrow, info
character(len=20) :: name='s_bjac_precdescr'
integer :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = 6
end if
if (.not.allocated(prec%iprcparm)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner")
goto 9999
end if
write(iout_,*) 'Block Jacobi with: ',&
& fact_names(prec%iprcparm(psb_f_type_))
call psb_erractionsave(err_act)
info = psb_success_
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 psb_s_bjac_precdescr
subroutine psb_s_bjac_dump(prec,info,prefix,head)
use psb_base_mod
implicit none
class(psb_s_bjac_prec_type), intent(in) :: prec
integer, intent(out) :: info
character(len=*), intent(in), optional :: prefix,head
integer :: i, j, il1, iln, lname, lev
integer :: ictxt,iam, np
character(len=80) :: prefix_
character(len=120) :: fname ! len should be at least 20 more than
! len of prefix_
info = 0
ictxt = prec%get_ctxt()
call psb_info(ictxt,iam,np)
if (present(prefix)) then
prefix_ = trim(prefix(1:min(len(prefix),len(prefix_))))
else
prefix_ = "dump_fact_d"
end if
lname = len_trim(prefix_)
fname = trim(prefix_)
write(fname(lname+1:lname+5),'(a,i3.3)') '_p',iam
lname = lname + 5
write(fname(lname+1:),'(a)')'_lower.mtx'
if (prec%av(psb_l_pr_)%is_asb()) &
& call prec%av(psb_l_pr_)%print(fname,head=head)
write(fname(lname+1:),'(a,a)')'_diag.mtx'
if (allocated(prec%d)) &
& call psb_geprt(fname,prec%d,head=head)
write(fname(lname+1:),'(a)')'_upper.mtx'
if (prec%av(psb_u_pr_)%is_asb()) &
& call prec%av(psb_u_pr_)%print(fname,head=head)
end subroutine psb_s_bjac_dump
function psb_s_bjac_sizeof(prec) result(val)
use psb_base_mod
class(psb_s_bjac_prec_type), intent(in) :: prec
integer(psb_long_int_k_) :: val
val = 0
if (allocated(prec%d)) then
val = val + psb_sizeof_sp * size(prec%d)
endif
if (allocated(prec%av)) then
val = val + psb_sizeof(prec%av(psb_l_pr_))
val = val + psb_sizeof(prec%av(psb_u_pr_))
endif
return
end function psb_s_bjac_sizeof
end module psb_s_bjacprec