psblas3:
Makefile psb_d_bjacprec.f03 psb_d_diagprec.f03 psb_d_nullprec.f03 psb_dprc_aply.f90 psb_dprecbld.f90 psb_dprecinit.f90 psb_dprecset.f90 psb_prec_type.f03 New preconditioner structurepsblas3-type-indexed
Salvatore Filippone
15 years ago
parent
89bec2256e
commit
390cbda059
@ -0,0 +1,560 @@
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module psb_d_bjacprec
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use psb_prec_type
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type, extends(psb_d_base_prec_type) :: psb_d_bjac_prec_type
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integer, allocatable :: iprcparm(:)
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type(psb_d_sparse_mat), allocatable :: av(:)
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real(psb_dpk_), allocatable :: d(:)
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contains
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procedure, pass(prec) :: apply => d_bjac_apply
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procedure, pass(prec) :: precbld => d_bjac_precbld
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procedure, pass(prec) :: precinit => d_bjac_precinit
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procedure, pass(prec) :: d_base_precseti => d_bjac_precseti
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procedure, pass(prec) :: d_base_precsetr => d_bjac_precsetr
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procedure, pass(prec) :: d_base_precsetc => d_bjac_precsetc
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procedure, pass(prec) :: precfree => d_bjac_precfree
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procedure, pass(prec) :: precdescr => d_bjac_precdescr
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procedure, pass(prec) :: sizeof => d_bjac_sizeof
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end type psb_d_bjac_prec_type
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character(len=15), parameter, private :: &
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& fact_names(0:2)=(/'None ','ILU(n) ',&
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& 'ILU(eps) '/)
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contains
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subroutine d_bjac_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
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use psb_base_mod
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_d_bjac_prec_type), intent(in) :: prec
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real(psb_dpk_),intent(in) :: alpha,beta
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real(psb_dpk_),intent(in) :: x(:)
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real(psb_dpk_),intent(inout) :: y(:)
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integer, intent(out) :: info
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character(len=1), optional :: trans
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real(psb_dpk_),intent(inout), optional, target :: work(:)
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! Local variables
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integer :: n_row,n_col
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real(psb_dpk_), pointer :: ww(:), aux(:)
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integer :: ictxt,np,me, err_act, int_err(5)
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integer :: debug_level, debug_unit
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character :: trans_
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character(len=20) :: name='d_bjac_prec_apply'
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character(len=20) :: ch_err
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info = 0
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt = psb_cd_get_context(desc_data)
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call psb_info(ictxt, me, np)
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trans_ = psb_toupper(trans)
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select case(trans_)
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case('N','T','C')
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! Ok
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case default
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call psb_errpush(40,name)
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goto 9999
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end select
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n_row = psb_cd_get_local_rows(desc_data)
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n_col = psb_cd_get_local_cols(desc_data)
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if (size(x) < n_row) then
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info = 36
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call psb_errpush(info,name,i_err=(/2,n_row,0,0,0/))
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goto 9999
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end if
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if (size(y) < n_row) then
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info = 36
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call psb_errpush(info,name,i_err=(/3,n_row,0,0,0/))
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goto 9999
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end if
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if (.not.allocated(prec%d)) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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if (size(prec%d) < n_row) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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if (n_col <= size(work)) then
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ww => work(1:n_col)
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if ((4*n_col+n_col) <= size(work)) then
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aux => work(n_col+1:)
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else
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allocate(aux(4*n_col),stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Allocate')
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goto 9999
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end if
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endif
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else
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allocate(ww(n_col),aux(4*n_col),stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Allocate')
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goto 9999
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end if
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endif
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select case(prec%iprcparm(psb_f_type_))
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case(psb_f_ilu_n_)
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select case(trans_)
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case('N')
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call psb_spsm(done,prec%av(psb_l_pr_),x,dzero,ww,desc_data,info,&
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& trans=trans_,scale='L',diag=prec%d,choice=psb_none_,work=aux)
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if(info /=0) goto 9999
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call psb_spsm(alpha,prec%av(psb_u_pr_),ww,beta,y,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_, work=aux)
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if(info /=0) goto 9999
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case('T','C')
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call psb_spsm(done,prec%av(psb_u_pr_),x,dzero,ww,desc_data,info,&
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& trans=trans_,scale='L',diag=prec%d,choice=psb_none_, work=aux)
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if(info /=0) goto 9999
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call psb_spsm(alpha,prec%av(psb_l_pr_),ww,beta,y,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_,work=aux)
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if(info /=0) goto 9999
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end select
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case default
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info = 4001
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call psb_errpush(info,name,a_err='Invalid factorization')
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goto 9999
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end select
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call psb_halo(y,desc_data,info,data=psb_comm_mov_)
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if (n_col <= size(work)) then
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if ((4*n_col+n_col) <= size(work)) then
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else
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deallocate(aux)
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endif
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else
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deallocate(ww,aux)
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endif
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_errpush(info,name,i_err=int_err,a_err=ch_err)
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_apply
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subroutine d_bjac_precinit(prec,info)
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use psb_base_mod
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Implicit None
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class(psb_d_bjac_prec_type),intent(inout) :: prec
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integer, intent(out) :: info
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Integer :: err_act, nrow
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character(len=20) :: name='d_null_precinit'
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call psb_erractionsave(err_act)
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info = 0
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call psb_realloc(psb_ifpsz,prec%iprcparm,info)
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if (info /= 0) then
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info = 4000
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call psb_Errpush(info,name)
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goto 9999
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end if
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prec%iprcparm(:) = 0
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prec%iprcparm(psb_p_type_) = psb_bjac_
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prec%iprcparm(psb_f_type_) = psb_f_ilu_n_
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prec%iprcparm(psb_ilu_fill_in_) = 0
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_precinit
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subroutine d_bjac_precbld(a,desc_a,prec,info,upd)
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use psb_base_mod
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use psb_prec_mod
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Implicit None
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type(psb_d_sparse_mat), intent(in), target :: a
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type(psb_desc_type), intent(in), target :: desc_a
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class(psb_d_bjac_prec_type),intent(inout) :: prec
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integer, intent(out) :: info
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character, intent(in), optional :: upd
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! .. Local Scalars ..
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integer :: i, m
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integer :: int_err(5)
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character :: trans, unitd
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type(psb_d_csr_sparse_mat), allocatable :: lf, uf
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real(psb_dpk_) :: t1,t2,t3,t4,t5,t6, t7, t8
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integer nztota, err_act, n_row, nrow_a,n_col, nhalo
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integer :: ictxt,np,me
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character(len=20) :: name='d_bjac_precbld'
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character(len=20) :: ch_err
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if(psb_get_errstatus() /= 0) return
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info = 0
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call psb_erractionsave(err_act)
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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m = a%get_nrows()
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if (m < 0) then
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info = 10
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int_err(1) = 1
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int_err(2) = m
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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endif
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trans = 'N'
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unitd = 'U'
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select case(prec%iprcparm(psb_f_type_))
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case(psb_f_ilu_n_)
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if (allocated(prec%av)) then
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if (size(prec%av) < psb_bp_ilu_avsz) then
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do i=1,size(prec%av)
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call prec%av(i)%free()
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enddo
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deallocate(prec%av,stat=info)
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endif
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end if
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if (.not.allocated(prec%av)) then
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allocate(prec%av(psb_max_avsz),stat=info)
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if (info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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endif
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nrow_a = psb_cd_get_local_rows(desc_a)
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nztota = a%get_nzeros()
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n_col = psb_cd_get_local_cols(desc_a)
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nhalo = n_col-nrow_a
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n_row = nrow_a
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allocate(lf,uf,stat=info)
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if (info == 0) call lf%allocate(n_row,n_row,nztota)
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if (info == 0) call uf%allocate(n_row,n_row,nztota)
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if(info/=0) then
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info=4010
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ch_err='psb_sp_all'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if (allocated(prec%d)) then
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if (size(prec%d) < n_row) then
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deallocate(prec%d)
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endif
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endif
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if (.not.allocated(prec%d)) then
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allocate(prec%d(n_row),stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Allocate')
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goto 9999
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end if
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endif
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t3 = psb_wtime()
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! This is where we have no renumbering, thus no need
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call psb_ilu_fct(a,lf,uf,prec%d,info)
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if(info==0) then
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call prec%av(psb_l_pr_)%mv_from(lf)
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call prec%av(psb_u_pr_)%mv_from(uf)
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call prec%av(psb_l_pr_)%set_asb()
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call prec%av(psb_u_pr_)%set_asb()
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call prec%av(psb_l_pr_)%trim()
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call prec%av(psb_u_pr_)%trim()
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else
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info=4010
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ch_err='psb_ilu_fct'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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case(psb_f_none_)
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info=4010
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ch_err='Inconsistent prec psb_f_none_'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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case default
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info=4010
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ch_err='Unknown psb_f_type_'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end select
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_precbld
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subroutine d_bjac_precseti(prec,what,val,info)
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use psb_base_mod
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Implicit None
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class(psb_d_bjac_prec_type),intent(inout) :: prec
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integer, intent(in) :: what
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integer, intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act, nrow
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character(len=20) :: name='d_bjac_precset'
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call psb_erractionsave(err_act)
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info = 0
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if (.not.allocated(prec%iprcparm)) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner")
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goto 9999
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end if
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select case(what)
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case (psb_f_type_)
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if (prec%iprcparm(psb_p_type_) /= psb_bjac_) then
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write(0,*) 'WHAT is invalid for current preconditioner ',prec%iprcparm(psb_p_type_),&
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& 'ignoring user specification'
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return
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endif
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prec%iprcparm(psb_f_type_) = val
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case (psb_ilu_fill_in_)
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if ((prec%iprcparm(psb_p_type_) /= psb_bjac_).or.(prec%iprcparm(psb_f_type_) /= psb_f_ilu_n_)) then
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write(0,*) 'WHAT is invalid for current preconditioner ',prec%iprcparm(psb_p_type_),&
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& 'ignoring user specification'
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return
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endif
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prec%iprcparm(psb_ilu_fill_in_) = val
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case default
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write(0,*) 'WHAT is invalid, ignoring user specification'
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end select
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_precseti
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subroutine d_bjac_precsetr(prec,what,val,info)
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use psb_base_mod
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Implicit None
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class(psb_d_bjac_prec_type),intent(inout) :: prec
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integer, intent(in) :: what
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real(psb_dpk_), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act, nrow
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character(len=20) :: name='d_bjac_precset'
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call psb_erractionsave(err_act)
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info = 0
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_precsetr
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subroutine d_bjac_precsetc(prec,what,val,info)
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use psb_base_mod
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Implicit None
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class(psb_d_bjac_prec_type),intent(inout) :: prec
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integer, intent(in) :: what
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character(len=*), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act, nrow
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character(len=20) :: name='d_bjac_precset'
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call psb_erractionsave(err_act)
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info = 0
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine d_bjac_precsetc
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subroutine d_bjac_precfree(prec,info)
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use psb_base_mod
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Implicit None
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class(psb_d_bjac_prec_type), intent(inout) :: prec
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integer, intent(out) :: info
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Integer :: err_act, i
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character(len=20) :: name='d_bjac_precfree'
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call psb_erractionsave(err_act)
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info = 0
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if (allocated(prec%av)) then
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do i=1,size(prec%av)
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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
|
||||
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_bjac_precfree
|
||||
|
||||
|
||||
subroutine d_bjac_precdescr(prec,iout)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_bjac_prec_type), intent(in) :: prec
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
Integer :: err_act, nrow, info
|
||||
character(len=20) :: name='d_bjac_precdescr'
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
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 = 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 d_bjac_precdescr
|
||||
|
||||
function d_bjac_sizeof(prec) result(val)
|
||||
use psb_base_mod
|
||||
class(psb_d_bjac_prec_type), intent(in) :: prec
|
||||
integer(psb_long_int_k_) :: val
|
||||
|
||||
val = 0
|
||||
if (allocated(prec%d)) then
|
||||
val = val + psb_sizeof_dp * 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 d_bjac_sizeof
|
||||
|
||||
end module psb_d_bjacprec
|
||||
@ -0,0 +1,352 @@
|
||||
module psb_d_diagprec
|
||||
use psb_prec_type
|
||||
|
||||
|
||||
type, extends(psb_d_base_prec_type) :: psb_d_diag_prec_type
|
||||
real(psb_dpk_), allocatable :: d(:)
|
||||
contains
|
||||
procedure, pass(prec) :: apply => d_diag_apply
|
||||
procedure, pass(prec) :: precbld => d_diag_precbld
|
||||
procedure, pass(prec) :: precinit => d_diag_precinit
|
||||
procedure, pass(prec) :: d_base_precseti => d_diag_precseti
|
||||
procedure, pass(prec) :: d_base_precsetr => d_diag_precsetr
|
||||
procedure, pass(prec) :: d_base_precsetc => d_diag_precsetc
|
||||
procedure, pass(prec) :: precfree => d_diag_precfree
|
||||
procedure, pass(prec) :: precdescr => d_diag_precdescr
|
||||
procedure, pass(prec) :: sizeof => d_diag_sizeof
|
||||
end type psb_d_diag_prec_type
|
||||
|
||||
|
||||
contains
|
||||
|
||||
|
||||
subroutine d_diag_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_d_diag_prec_type), intent(in) :: prec
|
||||
real(psb_dpk_),intent(in) :: x(:)
|
||||
real(psb_dpk_),intent(in) :: alpha, beta
|
||||
real(psb_dpk_),intent(inout) :: y(:)
|
||||
integer, intent(out) :: info
|
||||
character(len=1), optional :: trans
|
||||
real(psb_dpk_),intent(inout), optional, target :: work(:)
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_diag_prec_apply'
|
||||
real(psb_dpk_), pointer :: ww(:)
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
!
|
||||
! This is the base version and we should throw an error.
|
||||
! Or should it be the DIAG preonditioner???
|
||||
!
|
||||
info = 0
|
||||
|
||||
nrow = psb_cd_get_local_rows(desc_data)
|
||||
if (size(x) < nrow) then
|
||||
info = 36
|
||||
call psb_errpush(info,name,i_err=(/2,nrow,0,0,0/))
|
||||
goto 9999
|
||||
end if
|
||||
if (size(y) < nrow) then
|
||||
info = 36
|
||||
call psb_errpush(info,name,i_err=(/3,nrow,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) < nrow) then
|
||||
info = 1124
|
||||
call psb_errpush(info,name,a_err="preconditioner: D")
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
if (size(work) >= size(x)) then
|
||||
ww => work
|
||||
else
|
||||
allocate(ww(size(x)),stat=info)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4025,name,i_err=(/size(x),0,0,0,0/),a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
end if
|
||||
|
||||
ww(1:nrow) = x(1:nrow)*prec%d(1:nrow)
|
||||
call psb_geaxpby(alpha,ww,beta,y,desc_data,info)
|
||||
|
||||
if (size(work) < size(x)) then
|
||||
deallocate(ww,stat=info)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='Deallocate')
|
||||
goto 9999
|
||||
end if
|
||||
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_apply
|
||||
|
||||
subroutine d_diag_precinit(prec,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_prec_type),intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_diag_precinit'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precinit
|
||||
|
||||
|
||||
subroutine d_diag_precbld(a,desc_a,prec,info,upd)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
type(psb_desc_type), intent(in), target :: desc_a
|
||||
class(psb_d_diag_prec_type),intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
character, intent(in), optional :: upd
|
||||
Integer :: err_act, nrow,i
|
||||
character(len=20) :: name='d_diag_precbld'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
nrow = psb_cd_get_local_cols(desc_a)
|
||||
if (allocated(prec%d)) then
|
||||
if (size(prec%d) < nrow) then
|
||||
deallocate(prec%d,stat=info)
|
||||
end if
|
||||
end if
|
||||
if ((info == 0).and.(.not.allocated(prec%d))) then
|
||||
allocate(prec%d(nrow), stat=info)
|
||||
end if
|
||||
if (info /= 0) then
|
||||
info = 4000
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call a%get_diag(prec%d,info)
|
||||
if (info /= 0) then
|
||||
info = 4010
|
||||
call psb_errpush(info,name, a_err='get_diag')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
do i=1,nrow
|
||||
if (prec%d(i) == dzero) then
|
||||
prec%d(i) = done
|
||||
else
|
||||
prec%d(i) = done/prec%d(i)
|
||||
endif
|
||||
end do
|
||||
|
||||
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_precbld
|
||||
|
||||
subroutine d_diag_precseti(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_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='d_diag_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precseti
|
||||
|
||||
subroutine d_diag_precsetr(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_prec_type),intent(inout) :: prec
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_diag_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precsetr
|
||||
|
||||
subroutine d_diag_precsetc(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_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='d_diag_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precsetc
|
||||
|
||||
subroutine d_diag_precfree(prec,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_prec_type), intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_diag_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precfree
|
||||
|
||||
|
||||
subroutine d_diag_precdescr(prec,iout)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_diag_prec_type), intent(in) :: prec
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
Integer :: err_act, nrow, info
|
||||
character(len=20) :: name='d_diag_precdescr'
|
||||
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
end if
|
||||
|
||||
write(iout_,*) 'Diagonal scaling'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_diag_precdescr
|
||||
|
||||
function d_diag_sizeof(prec) result(val)
|
||||
use psb_base_mod
|
||||
class(psb_d_diag_prec_type), intent(in) :: prec
|
||||
integer(psb_long_int_k_) :: val
|
||||
|
||||
val = 0
|
||||
val = val + psb_sizeof_dp * size(prec%d)
|
||||
return
|
||||
end function d_diag_sizeof
|
||||
|
||||
end module psb_d_diagprec
|
||||
@ -0,0 +1,293 @@
|
||||
module psb_d_nullprec
|
||||
use psb_prec_type
|
||||
|
||||
|
||||
type, extends(psb_d_base_prec_type) :: psb_d_null_prec_type
|
||||
contains
|
||||
procedure, pass(prec) :: apply => d_null_apply
|
||||
procedure, pass(prec) :: precbld => d_null_precbld
|
||||
procedure, pass(prec) :: precinit => d_null_precinit
|
||||
procedure, pass(prec) :: d_base_precseti => d_null_precseti
|
||||
procedure, pass(prec) :: d_base_precsetr => d_null_precsetr
|
||||
procedure, pass(prec) :: d_base_precsetc => d_null_precsetc
|
||||
procedure, pass(prec) :: precfree => d_null_precfree
|
||||
procedure, pass(prec) :: precdescr => d_null_precdescr
|
||||
procedure, pass(prec) :: sizeof => d_null_sizeof
|
||||
end type psb_d_null_prec_type
|
||||
|
||||
|
||||
contains
|
||||
|
||||
|
||||
subroutine d_null_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_d_null_prec_type), intent(in) :: prec
|
||||
real(psb_dpk_),intent(in) :: x(:)
|
||||
real(psb_dpk_),intent(in) :: alpha, beta
|
||||
real(psb_dpk_),intent(inout) :: y(:)
|
||||
integer, intent(out) :: info
|
||||
character(len=1), optional :: trans
|
||||
real(psb_dpk_),intent(inout), optional, target :: work(:)
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_null_prec_apply'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
!
|
||||
! This is the base version and we should throw an error.
|
||||
! Or should it be the NULL preonditioner???
|
||||
!
|
||||
info = 0
|
||||
|
||||
nrow = psb_cd_get_local_rows(desc_data)
|
||||
if (size(x) < nrow) then
|
||||
info = 36
|
||||
call psb_errpush(info,name,i_err=(/2,nrow,0,0,0/))
|
||||
goto 9999
|
||||
end if
|
||||
if (size(y) < nrow) then
|
||||
info = 36
|
||||
call psb_errpush(info,name,i_err=(/3,nrow,0,0,0/))
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call psb_geaxpby(alpha,x,beta,y,desc_data,info)
|
||||
if (info /= 0 ) then
|
||||
info = 4010
|
||||
call psb_errpush(infoi,name,a_err="psb_geaxpby")
|
||||
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_null_apply
|
||||
|
||||
|
||||
subroutine d_null_precinit(prec,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_prec_type),intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_null_precinit'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precinit
|
||||
|
||||
subroutine d_null_precbld(a,desc_a,prec,info,upd)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
type(psb_desc_type), intent(in), target :: desc_a
|
||||
class(psb_d_null_prec_type),intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
character, intent(in), optional :: upd
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_null_precbld'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precbld
|
||||
|
||||
subroutine d_null_precseti(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_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='d_null_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precseti
|
||||
|
||||
subroutine d_null_precsetr(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_prec_type),intent(inout) :: prec
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_null_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precsetr
|
||||
|
||||
subroutine d_null_precsetc(prec,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_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='d_null_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precsetc
|
||||
|
||||
subroutine d_null_precfree(prec,info)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_prec_type), intent(inout) :: prec
|
||||
integer, intent(out) :: info
|
||||
|
||||
Integer :: err_act, nrow
|
||||
character(len=20) :: name='d_null_precset'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 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 d_null_precfree
|
||||
|
||||
|
||||
subroutine d_null_precdescr(prec,iout)
|
||||
|
||||
use psb_base_mod
|
||||
Implicit None
|
||||
|
||||
class(psb_d_null_prec_type), intent(in) :: prec
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
Integer :: err_act, nrow, info
|
||||
character(len=20) :: name='d_null_precset'
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
end if
|
||||
|
||||
write(iout_,*) 'No preconditioning'
|
||||
|
||||
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_null_precdescr
|
||||
|
||||
function d_null_sizeof(prec) result(val)
|
||||
use psb_base_mod
|
||||
class(psb_d_null_prec_type), intent(in) :: prec
|
||||
integer(psb_long_int_k_) :: val
|
||||
|
||||
val = 0
|
||||
|
||||
return
|
||||
end function d_null_sizeof
|
||||
|
||||
end module psb_d_nullprec
|
||||
Loading…
Reference in New Issue