module psb_s_nullprec use psb_s_base_prec_mod type, extends(psb_s_base_prec_type) :: psb_s_null_prec_type contains procedure, pass(prec) :: c_apply_v => psb_s_null_apply_vect procedure, pass(prec) :: c_apply => psb_s_null_apply procedure, pass(prec) :: precbld => psb_s_null_precbld procedure, pass(prec) :: precinit => psb_s_null_precinit procedure, pass(prec) :: precseti => psb_s_null_precseti procedure, pass(prec) :: precsetr => psb_s_null_precsetr procedure, pass(prec) :: precsetc => psb_s_null_precsetc procedure, pass(prec) :: precfree => psb_s_null_precfree procedure, pass(prec) :: precdescr => psb_s_null_precdescr procedure, pass(prec) :: sizeof => psb_s_null_sizeof end type psb_s_null_prec_type private :: psb_s_null_precbld, psb_s_null_precseti,& & psb_s_null_precsetr, psb_s_null_precsetc, psb_s_null_sizeof,& & psb_s_null_precinit, psb_s_null_precfree, psb_s_null_precdescr interface psb_s_null_apply_vect subroutine psb_s_null_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work) import :: psb_desc_type, psb_s_null_prec_type, psb_s_vect_type, psb_spk_ type(psb_desc_type),intent(in) :: desc_data class(psb_s_null_prec_type), intent(inout) :: prec type(psb_s_vect_type),intent(inout) :: x real(psb_spk_),intent(in) :: alpha, beta 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(:) end subroutine psb_s_null_apply_vect end interface psb_s_null_apply_vect interface psb_s_null_apply subroutine psb_s_null_apply(alpha,prec,x,beta,y,desc_data,info,trans,work) import :: psb_desc_type, psb_s_null_prec_type, psb_spk_ type(psb_desc_type),intent(in) :: desc_data class(psb_s_null_prec_type), intent(in) :: prec real(psb_spk_),intent(inout) :: x(:) real(psb_spk_),intent(in) :: alpha, beta real(psb_spk_),intent(inout) :: y(:) integer, intent(out) :: info character(len=1), optional :: trans real(psb_spk_),intent(inout), optional, target :: work(:) end subroutine psb_s_null_apply end interface psb_s_null_apply contains subroutine psb_s_null_precinit(prec,info) Implicit None class(psb_s_null_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_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_null_precinit subroutine psb_s_null_precbld(a,desc_a,prec,info,upd,amold,afmt,vmold) Implicit None type(psb_sspmat_type), intent(in), target :: a type(psb_desc_type), intent(in), target :: desc_a class(psb_s_null_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 Integer :: err_act, nrow character(len=20) :: name='s_null_precbld' 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_null_precbld subroutine psb_s_null_precseti(prec,what,val,info) Implicit None class(psb_s_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='s_null_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_null_precseti subroutine psb_s_null_precsetr(prec,what,val,info) Implicit None class(psb_s_null_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_null_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_null_precsetr subroutine psb_s_null_precsetc(prec,what,val,info) Implicit None class(psb_s_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='s_null_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_null_precsetc subroutine psb_s_null_precfree(prec,info) Implicit None class(psb_s_null_prec_type), intent(inout) :: prec integer, intent(out) :: info Integer :: err_act, nrow character(len=20) :: name='s_null_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_null_precfree subroutine psb_s_null_precdescr(prec,iout) Implicit None class(psb_s_null_prec_type), intent(in) :: prec integer, intent(in), optional :: iout Integer :: err_act, nrow, info character(len=20) :: name='s_null_precset' integer :: iout_ call psb_erractionsave(err_act) info = psb_success_ 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 psb_s_null_precdescr function psb_s_null_sizeof(prec) result(val) class(psb_s_null_prec_type), intent(in) :: prec integer(psb_long_int_k_) :: val val = 0 return end function psb_s_null_sizeof end module psb_s_nullprec