|
|
|
|
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) :: precseti => d_null_precseti
|
|
|
|
|
procedure, pass(prec) :: precsetr => d_null_precsetr
|
|
|
|
|
procedure, pass(prec) :: 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_sparse_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_sparse_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_sparse_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_sparse_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_sparse_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_sparse_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_sparse_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_sparse_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_sparse_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
|
