|
|
@ -98,44 +98,50 @@ subroutine amg_d_poly_smoother_bld(a,desc_a,sm,info,amold,vmold,imold)
|
|
|
|
goto 9999
|
|
|
|
goto 9999
|
|
|
|
end if
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
if (.false.) then
|
|
|
|
!!$ if (.false.) then
|
|
|
|
select type(ssv => sm%sv)
|
|
|
|
!!$ select type(ssv => sm%sv)
|
|
|
|
class is(amg_d_l1_diag_solver_type)
|
|
|
|
!!$ class is(amg_d_l1_diag_solver_type)
|
|
|
|
da = a%arwsum(info)
|
|
|
|
!!$ da = a%arwsum(info)
|
|
|
|
dsv = ssv%dv%get_vect()
|
|
|
|
!!$ dsv = ssv%dv%get_vect()
|
|
|
|
sm%rho_ba = maxval(da(1:n_row)*dsv(1:n_row))
|
|
|
|
!!$ sm%rho_ba = maxval(da(1:n_row)*dsv(1:n_row))
|
|
|
|
class default
|
|
|
|
!!$ class default
|
|
|
|
write(0,*) 'PolySmoother BUILD: only L1-Jacobi/L1-DIAG for now ',ssv%get_fmt()
|
|
|
|
!!$ write(0,*) 'PolySmoother BUILD: only L1-Jacobi/L1-DIAG for now ',ssv%get_fmt()
|
|
|
|
|
|
|
|
!!$ sm%rho_ba = done
|
|
|
|
|
|
|
|
!!$ end select
|
|
|
|
|
|
|
|
!!$ else
|
|
|
|
|
|
|
|
if (sm%rho_ba <= dzero) then
|
|
|
|
|
|
|
|
select case(sm%rho_estimate)
|
|
|
|
|
|
|
|
case(amg_poly_rho_est_power_)
|
|
|
|
|
|
|
|
block
|
|
|
|
|
|
|
|
type(psb_d_vect_type) :: tq, tt, tz,wv(2)
|
|
|
|
|
|
|
|
real(psb_dpk_) :: znrm, lambda
|
|
|
|
|
|
|
|
real(psb_dpk_),allocatable :: work(:)
|
|
|
|
|
|
|
|
integer(psb_ipk_) :: i, n_cols
|
|
|
|
|
|
|
|
n_cols = desc_a%get_local_cols()
|
|
|
|
|
|
|
|
allocate(work(4*n_cols))
|
|
|
|
|
|
|
|
call psb_geasb(tz,desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(tt,desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(wv(1),desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(wv(2),desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geall(tq,desc_a,info)
|
|
|
|
|
|
|
|
call tq%set(done)
|
|
|
|
|
|
|
|
call psb_geasb(tq,desc_a,info,mold=vmold)
|
|
|
|
|
|
|
|
call psb_spmm(done,a,tq,dzero,tt,desc_a,info) !
|
|
|
|
|
|
|
|
call sm%sv%apply_v(done,tt,dzero,tz,desc_a,'NoTrans',work,wv,info) ! z_{k+1} = BA q_k
|
|
|
|
|
|
|
|
do i=1,sm%rho_estimate_iterations
|
|
|
|
|
|
|
|
znrm = psb_genrm2(tz,desc_a,info) ! znrm = |z_k|_2
|
|
|
|
|
|
|
|
call psb_geaxpby((done/znrm),tz,dzero,tq,desc_a,info) ! q_k = z_k/znrm
|
|
|
|
|
|
|
|
call psb_spmm(done,a,tq,dzero,tt,desc_a,info) ! t_{k+1} = BA q_k
|
|
|
|
|
|
|
|
call sm%sv%apply_v(done,tt,dzero,tz,desc_a,'NoTrans',work,wv,info) ! z_{k+1} = B t_{k+1}
|
|
|
|
|
|
|
|
lambda = psb_gedot(tq,tz,desc_a,info) ! lambda = q_k^T z_{k+1} = q_k^T BA q_k
|
|
|
|
|
|
|
|
!write(0,*) 'BLD: lambda estimate ',i,lambda
|
|
|
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
sm%rho_ba = lambda
|
|
|
|
|
|
|
|
end block
|
|
|
|
|
|
|
|
case default
|
|
|
|
|
|
|
|
write(0,*) ' Unknown algorithm for RHO(BA) estimate, defaulting to a value of 1.0 '
|
|
|
|
sm%rho_ba = done
|
|
|
|
sm%rho_ba = done
|
|
|
|
end select
|
|
|
|
end select
|
|
|
|
else
|
|
|
|
|
|
|
|
block
|
|
|
|
|
|
|
|
type(psb_d_vect_type) :: tq, tt, tz,wv(2)
|
|
|
|
|
|
|
|
real(psb_dpk_) :: znrm, lambda
|
|
|
|
|
|
|
|
real(psb_dpk_),allocatable :: work(:)
|
|
|
|
|
|
|
|
integer(psb_ipk_) :: i, n_cols
|
|
|
|
|
|
|
|
n_cols = desc_a%get_local_cols()
|
|
|
|
|
|
|
|
allocate(work(4*n_cols))
|
|
|
|
|
|
|
|
call psb_geasb(tz,desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(tt,desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(wv(1),desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geasb(wv(2),desc_a,info,mold=vmold,scratch=.true.)
|
|
|
|
|
|
|
|
call psb_geall(tq,desc_a,info)
|
|
|
|
|
|
|
|
call tq%set(done)
|
|
|
|
|
|
|
|
call psb_geasb(tq,desc_a,info,mold=vmold)
|
|
|
|
|
|
|
|
call psb_spmm(done,a,tq,dzero,tt,desc_a,info) !
|
|
|
|
|
|
|
|
call sm%sv%apply_v(done,tt,dzero,tz,desc_a,'NoTrans',work,wv,info) ! z_{k+1} = BA q_k
|
|
|
|
|
|
|
|
do i=1,20
|
|
|
|
|
|
|
|
znrm = psb_genrm2(tz,desc_a,info) ! znrm = |z_k|_2
|
|
|
|
|
|
|
|
call psb_geaxpby((done/znrm),tz,dzero,tq,desc_a,info) ! q_k = z_k/znrm
|
|
|
|
|
|
|
|
call psb_spmm(done,a,tq,dzero,tt,desc_a,info) ! t_{k+1} = BA q_k
|
|
|
|
|
|
|
|
call sm%sv%apply_v(done,tt,dzero,tz,desc_a,'NoTrans',work,wv,info) ! z_{k+1} = B t_{k+1}
|
|
|
|
|
|
|
|
lambda = psb_gedot(tq,tz,desc_a,info) ! lambda = q_k^T z_{k+1} = q_k^T BA q_k
|
|
|
|
|
|
|
|
!write(0,*) 'BLD: lambda estimate ',i,lambda
|
|
|
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
sm%rho_ba = lambda
|
|
|
|
|
|
|
|
!sm%rho_ba = done
|
|
|
|
|
|
|
|
end block
|
|
|
|
|
|
|
|
end if
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
|
|