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!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
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!!$
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!!$ (C) Copyright 2008,2009,2010,2012,2013
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the MLD2P4 group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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!
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!
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!
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!
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subroutine mld_z_jac_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
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use psb_base_mod
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use mld_z_jac_smoother, mld_protect_name => mld_z_jac_smoother_apply_vect
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implicit none
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_z_jac_smoother_type), intent(inout) :: sm
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type(psb_z_vect_type),intent(inout) :: x
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type(psb_z_vect_type),intent(inout) :: y
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complex(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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integer, intent(in) :: sweeps
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complex(psb_dpk_),target, intent(inout) :: work(:)
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integer, intent(out) :: info
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integer :: n_row,n_col
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type(psb_z_vect_type) :: tx, ty
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complex(psb_dpk_), pointer :: ww(:), aux(:)
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integer :: ictxt,np,me,i, err_act
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character :: trans_
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character(len=20) :: name='z_jac_smoother_apply'
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call psb_erractionsave(err_act)
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info = psb_success_
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trans_ = psb_toupper(trans)
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select case(trans_)
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case('N')
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case('T')
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case('C')
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case default
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call psb_errpush(psb_err_iarg_invalid_i_,name)
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goto 9999
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end select
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if (.not.allocated(sm%sv)) then
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info = 1121
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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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n_row = desc_data%get_local_rows()
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n_col = desc_data%get_local_cols()
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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 /= psb_success_) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
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& a_err='complex(psb_dpk_)')
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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 /= psb_success_) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
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& a_err='complex(psb_dpk_)')
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goto 9999
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end if
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endif
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if ((sweeps == 1).or.(sm%nnz_nd_tot==0)) then
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call sm%sv%apply(alpha,x,beta,y,desc_data,trans_,aux,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_internal_error_,&
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& name,a_err='Error in sub_aply Jacobi Sweeps = 1')
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goto 9999
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endif
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else if (sweeps > 1) then
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!
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!
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! Apply multiple sweeps of a block-Jacobi solver
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|
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! to compute an approximate solution of a linear system.
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!
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!
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call tx%bld(x%get_nrows(),mold=x%v)
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call tx%set(zzero)
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call ty%bld(x%get_nrows(),mold=x%v)
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do i=1, sweeps
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!
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! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
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! block diagonal part and the remaining part of the local matrix
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! and Y(j) is the approximate solution at sweep j.
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!
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call psb_geaxpby(zone,x,zzero,ty,desc_data,info)
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call psb_spmm(-zone,sm%nd,tx,zone,ty,desc_data,info,work=aux,trans=trans_)
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if (info /= psb_success_) exit
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call sm%sv%apply(zone,ty,zzero,tx,desc_data,trans_,aux,info)
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if (info /= psb_success_) exit
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end do
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if (info == psb_success_) call psb_geaxpby(alpha,tx,beta,y,desc_data,info)
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if (info /= psb_success_) then
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info=psb_err_internal_error_
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call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
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goto 9999
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end if
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call tx%free(info)
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if (info == psb_success_) call ty%free(info)
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if (info /= psb_success_) then
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info=psb_err_internal_error_
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call psb_errpush(info,name,a_err='final cleanup with Jacobi sweeps > 1')
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goto 9999
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end if
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else
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info = psb_err_iarg_neg_
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call psb_errpush(info,name,&
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& i_err=(/2,sweeps,0,0,0/))
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goto 9999
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endif
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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_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 mld_z_jac_smoother_apply_vect
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|
|
subroutine mld_z_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
|
|
|
|
|
use psb_base_mod
|
|
|
|
|
use mld_z_jac_smoother, mld_protect_name => mld_z_jac_smoother_apply
|
|
|
|
|
implicit none
|
|
|
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
|
|
|
class(mld_z_jac_smoother_type), intent(in) :: sm
|
|
|
|
|
complex(psb_dpk_),intent(inout) :: x(:)
|
|
|
|
|
complex(psb_dpk_),intent(inout) :: y(:)
|
|
|
|
|
complex(psb_dpk_),intent(in) :: alpha,beta
|
|
|
|
|
character(len=1),intent(in) :: trans
|
|
|
|
|
integer, intent(in) :: sweeps
|
|
|
|
|
complex(psb_dpk_),target, intent(inout) :: work(:)
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
|
|
|
|
|
integer :: n_row,n_col
|
|
|
|
|
complex(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
|
|
|
|
integer :: ictxt,np,me,i, err_act
|
|
|
|
|
character :: trans_
|
|
|
|
|
character(len=20) :: name='z_jac_smoother_apply'
|
|
|
|
|
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
info = psb_success_
|
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|
|
|
|
|
|
|
|
trans_ = psb_toupper(trans)
|
|
|
|
|
select case(trans_)
|
|
|
|
|
case('N')
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|
|
|
|
case('T','C')
|
|
|
|
|
case default
|
|
|
|
|
call psb_errpush(psb_err_iarg_invalid_i_,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
if (.not.allocated(sm%sv)) then
|
|
|
|
|
info = 1121
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
n_row = desc_data%get_local_rows()
|
|
|
|
|
n_col = desc_data%get_local_cols()
|
|
|
|
|
|
|
|
|
|
if (n_col <= size(work)) then
|
|
|
|
|
ww => work(1:n_col)
|
|
|
|
|
if ((4*n_col+n_col) <= size(work)) then
|
|
|
|
|
aux => work(n_col+1:)
|
|
|
|
|
else
|
|
|
|
|
allocate(aux(4*n_col),stat=info)
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
info=psb_err_alloc_request_
|
|
|
|
|
call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
|
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|
|
|
& a_err='complex(psb_dpk_)')
|
|
|
|
|
goto 9999
|
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|
|
|
end if
|
|
|
|
|
endif
|
|
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|
|
else
|
|
|
|
|
allocate(ww(n_col),aux(4*n_col),stat=info)
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
info=psb_err_alloc_request_
|
|
|
|
|
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
|
|
|
|
|
& a_err='complex(psb_dpk_)')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
if ((sweeps == 1).or.(sm%nnz_nd_tot==0)) then
|
|
|
|
|
|
|
|
|
|
call sm%sv%apply(alpha,x,beta,y,desc_data,trans_,aux,info)
|
|
|
|
|
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
call psb_errpush(psb_err_internal_error_,&
|
|
|
|
|
& name,a_err='Error in sub_aply Jacobi Sweeps = 1')
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
else if (sweeps > 1) then
|
|
|
|
|
|
|
|
|
|
!
|
|
|
|
|
!
|
|
|
|
|
! Apply multiple sweeps of a block-Jacobi solver
|
|
|
|
|
! to compute an approximate solution of a linear system.
|
|
|
|
|
!
|
|
|
|
|
!
|
|
|
|
|
allocate(tx(n_col),ty(n_col),stat=info)
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
info=psb_err_alloc_request_
|
|
|
|
|
call psb_errpush(info,name,i_err=(/2*n_col,0,0,0,0/),&
|
|
|
|
|
& a_err='complex(psb_dpk_)')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
tx = zzero
|
|
|
|
|
ty = zzero
|
|
|
|
|
do i=1, sweeps
|
|
|
|
|
!
|
|
|
|
|
! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
|
|
|
|
|
! block diagonal part and the remaining part of the local matrix
|
|
|
|
|
! and Y(j) is the approximate solution at sweep j.
|
|
|
|
|
!
|
|
|
|
|
ty(1:n_row) = x(1:n_row)
|
|
|
|
|
call psb_spmm(-zone,sm%nd,tx,zone,ty,desc_data,info,work=aux,trans=trans_)
|
|
|
|
|
|
|
|
|
|
if (info /= psb_success_) exit
|
|
|
|
|
|
|
|
|
|
call sm%sv%apply(zone,ty,zzero,tx,desc_data,trans_,aux,info)
|
|
|
|
|
|
|
|
|
|
if (info /= psb_success_) exit
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (info == psb_success_) call psb_geaxpby(alpha,tx,beta,y,desc_data,info)
|
|
|
|
|
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
info=psb_err_internal_error_
|
|
|
|
|
call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
deallocate(tx,ty,stat=info)
|
|
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if (info /= psb_success_) then
|
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|
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|
info=psb_err_internal_error_
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|
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|
call psb_errpush(info,name,a_err='final cleanup with Jacobi sweeps > 1')
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|
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|
goto 9999
|
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|
|
|
end if
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|
else
|
|
|
|
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|
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|
|
|
info = psb_err_iarg_neg_
|
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|
|
|
call psb_errpush(info,name,&
|
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|
|
|
& i_err=(/2,sweeps,0,0,0/))
|
|
|
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|
goto 9999
|
|
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|
|
|
|
endif
|
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|
|
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|
if (n_col <= size(work)) then
|
|
|
|
|
if ((4*n_col+n_col) <= size(work)) then
|
|
|
|
|
else
|
|
|
|
|
deallocate(aux)
|
|
|
|
|
endif
|
|
|
|
|
else
|
|
|
|
|
deallocate(ww,aux)
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
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 mld_z_jac_smoother_apply
|
|
|
|
|
|
|
|
|
|
subroutine mld_z_jac_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
|
|
|
|
|
|
|
|
|
|
use psb_base_mod
|
|
|
|
|
use mld_z_diag_solver
|
|
|
|
|
use mld_z_jac_smoother, mld_protect_name => mld_z_jac_smoother_bld
|
|
|
|
|
Implicit None
|
|
|
|
|
|
|
|
|
|
! Arguments
|
|
|
|
|
type(psb_zspmat_type), intent(in), target :: a
|
|
|
|
|
Type(psb_desc_type), Intent(in) :: desc_a
|
|
|
|
|
class(mld_z_jac_smoother_type), intent(inout) :: sm
|
|
|
|
|
character, intent(in) :: upd
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
class(psb_z_base_sparse_mat), intent(in), optional :: amold
|
|
|
|
|
class(psb_z_base_vect_type), intent(in), optional :: vmold
|
|
|
|
|
! Local variables
|
|
|
|
|
integer :: n_row,n_col, nrow_a, nztota, nzeros
|
|
|
|
|
complex(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
|
|
|
|
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
|
|
|
|
character(len=20) :: name='z_jac_smoother_bld', ch_err
|
|
|
|
|
|
|
|
|
|
info=psb_success_
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
debug_unit = psb_get_debug_unit()
|
|
|
|
|
debug_level = psb_get_debug_level()
|
|
|
|
|
ictxt = desc_a%get_context()
|
|
|
|
|
call psb_info(ictxt, me, np)
|
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
|
|
|
& write(debug_unit,*) me,' ',trim(name),' start'
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n_row = desc_a%get_local_rows()
|
|
|
|
|
|
|
|
|
|
nrow_a = a%get_nrows()
|
|
|
|
|
nztota = a%get_nzeros()
|
|
|
|
|
select type (smsv => sm%sv)
|
|
|
|
|
type is (mld_z_diag_solver_type)
|
|
|
|
|
call a%clip_diag(sm%nd,info)
|
|
|
|
|
class default
|
|
|
|
|
call a%csclip(sm%nd,info,&
|
|
|
|
|
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
|
|
|
|
|
end select
|
|
|
|
|
if (info == psb_success_) then
|
|
|
|
|
if (present(amold)) then
|
|
|
|
|
call sm%nd%cscnv(info,&
|
|
|
|
|
& mold=amold,dupl=psb_dupl_add_)
|
|
|
|
|
else
|
|
|
|
|
call sm%nd%cscnv(info,&
|
|
|
|
|
& type='csr',dupl=psb_dupl_add_)
|
|
|
|
|
endif
|
|
|
|
|
end if
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
call psb_errpush(psb_err_from_subroutine_,name,&
|
|
|
|
|
& a_err='clip & psb_spcnv csr 4')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call sm%sv%build(a,desc_a,upd,info,amold=amold,vmold=vmold)
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
call psb_errpush(psb_err_from_subroutine_,name,&
|
|
|
|
|
& a_err='solver build')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
nzeros = sm%nd%get_nzeros()
|
|
|
|
|
call psb_sum(ictxt,nzeros)
|
|
|
|
|
sm%nnz_nd_tot = nzeros
|
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
|
|
|
& write(debug_unit,*) me,' ',trim(name),' end'
|
|
|
|
|
|
|
|
|
|
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 mld_z_jac_smoother_bld
|
|
|
|
|
|
