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psblas3/prec/impl/psb_z_nullprec_impl.f90

108 lines
3.0 KiB
Fortran

subroutine psb_z_null_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
use psb_base_mod
use psb_z_nullprec, psb_protect_name => psb_z_null_apply_vect
implicit none
type(psb_desc_type),intent(in) :: desc_data
class(psb_z_null_prec_type), intent(inout) :: prec
type(psb_z_vect_type),intent(inout) :: x
complex(psb_dpk_),intent(in) :: alpha, beta
type(psb_z_vect_type),intent(inout) :: y
integer(psb_ipk_), intent(out) :: info
character(len=1), optional :: trans
complex(psb_dpk_),intent(inout), optional, target :: work(:)
integer(psb_ipk_) :: err_act, nrow, ierr(5)
character(len=20) :: name='c_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 = psb_success_
nrow = desc_data%get_local_rows()
if (x%get_nrows() < nrow) then
info = 36; ierr(1) = 2; ierr(2) = nrow;
call psb_errpush(info,name,i_err=ierr)
goto 9999
end if
if (y%get_nrows() < nrow) then
info = 36; ierr(1) = 3; ierr(2) = nrow;
call psb_errpush(info,name,i_err=ierr)
goto 9999
end if
call psb_geaxpby(alpha,x,beta,y,desc_data,info)
if (info /= psb_success_ ) then
info = psb_err_from_subroutine_
call psb_errpush(info,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 psb_z_null_apply_vect
subroutine psb_z_null_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
use psb_base_mod
use psb_z_nullprec, psb_protect_name => psb_z_null_apply
implicit none
type(psb_desc_type),intent(in) :: desc_data
class(psb_z_null_prec_type), intent(in) :: prec
complex(psb_dpk_),intent(inout) :: x(:)
complex(psb_dpk_),intent(in) :: alpha, beta
complex(psb_dpk_),intent(inout) :: y(:)
integer(psb_ipk_), intent(out) :: info
character(len=1), optional :: trans
complex(psb_dpk_),intent(inout), optional, target :: work(:)
integer(psb_ipk_) :: err_act, nrow, ierr(5)
character(len=20) :: name='c_null_prec_apply'
call psb_erractionsave(err_act)
!
!
info = psb_success_
nrow = desc_data%get_local_rows()
if (size(x) < nrow) then
info = 36; ierr(1) = 2; ierr(2) = nrow;
call psb_errpush(info,name,i_err=ierr)
goto 9999
end if
if (size(y) < nrow) then
info = 36; ierr(1) = 3; ierr(2) = nrow;
call psb_errpush(info,name,i_err=ierr)
goto 9999
end if
call psb_geaxpby(alpha,x,beta,y,desc_data,info)
if (info /= psb_success_ ) then
info = psb_err_from_subroutine_
call psb_errpush(info,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 psb_z_null_apply