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psblas3/prec/psb_d_bjacprec.f90

308 lines
10 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.0
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
module psb_d_bjacprec
use psb_d_base_prec_mod
type, extends(psb_d_base_prec_type) :: psb_d_bjac_prec_type
integer(psb_ipk_), allocatable :: iprcparm(:)
type(psb_dspmat_type), allocatable :: av(:)
type(psb_d_vect_type), allocatable :: dv
contains
procedure, pass(prec) :: d_apply_v => psb_d_bjac_apply_vect
procedure, pass(prec) :: d_apply => psb_d_bjac_apply
procedure, pass(prec) :: precbld => psb_d_bjac_precbld
procedure, pass(prec) :: precinit => psb_d_bjac_precinit
procedure, pass(prec) :: precseti => psb_d_bjac_precseti
!!$ procedure, pass(prec) :: precsetr => psb_d_bjac_precsetr
!!$ procedure, pass(prec) :: precsetc => psb_d_bjac_precsetc
procedure, pass(prec) :: precfree => psb_d_bjac_precfree
procedure, pass(prec) :: precdescr => psb_d_bjac_precdescr
procedure, pass(prec) :: dump => psb_d_bjac_dump
procedure, pass(prec) :: clone => psb_d_bjac_clone
procedure, pass(prec) :: sizeof => psb_d_bjac_sizeof
procedure, pass(prec) :: get_nzeros => psb_d_bjac_get_nzeros
end type psb_d_bjac_prec_type
private :: psb_d_bjac_sizeof, psb_d_bjac_precdescr, psb_d_bjac_get_nzeros
character(len=15), parameter, private :: &
& fact_names(0:2)=(/'None ','ILU(n) ',&
& 'ILU(eps) '/)
interface
subroutine psb_d_bjac_dump(prec,info,prefix,head)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_
class(psb_d_bjac_prec_type), intent(in) :: prec
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix,head
end subroutine psb_d_bjac_dump
end interface
interface
subroutine psb_d_bjac_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_
type(psb_desc_type),intent(in) :: desc_data
class(psb_d_bjac_prec_type), intent(inout) :: prec
real(psb_dpk_),intent(in) :: alpha,beta
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
integer(psb_ipk_), intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_),intent(inout), optional, target :: work(:)
end subroutine psb_d_bjac_apply_vect
end interface
interface
subroutine psb_d_bjac_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_
type(psb_desc_type),intent(in) :: desc_data
class(psb_d_bjac_prec_type), intent(in) :: prec
real(psb_dpk_),intent(in) :: alpha,beta
real(psb_dpk_),intent(inout) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
integer(psb_ipk_), intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_),intent(inout), optional, target :: work(:)
end subroutine psb_d_bjac_apply
end interface
interface
subroutine psb_d_bjac_precinit(prec,info)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_
class(psb_d_bjac_prec_type),intent(inout) :: prec
integer(psb_ipk_), intent(out) :: info
end subroutine psb_d_bjac_precinit
end interface
interface
subroutine psb_d_bjac_precbld(a,desc_a,prec,info,upd,amold,afmt,vmold)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(in), target :: desc_a
class(psb_d_bjac_prec_type),intent(inout) :: prec
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: upd
character(len=*), intent(in), optional :: afmt
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
end subroutine psb_d_bjac_precbld
end interface
interface
subroutine psb_d_bjac_precseti(prec,what,val,info)
import :: psb_ipk_, psb_desc_type, psb_d_bjac_prec_type, psb_d_vect_type, psb_dpk_
class(psb_d_bjac_prec_type),intent(inout) :: prec
integer(psb_ipk_), intent(in) :: what
integer(psb_ipk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
end subroutine psb_d_bjac_precseti
end interface
contains
subroutine psb_d_bjac_precdescr(prec,iout)
Implicit None
class(psb_d_bjac_prec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_) :: err_act, nrow, info
character(len=20) :: name='d_bjac_precdescr'
integer(psb_ipk_) :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = 6
end if
if (.not.allocated(prec%iprcparm)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner")
goto 9999
end if
write(iout_,*) 'Block Jacobi with: ',&
& fact_names(prec%iprcparm(psb_f_type_))
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_d_bjac_precdescr
function psb_d_bjac_sizeof(prec) result(val)
class(psb_d_bjac_prec_type), intent(in) :: prec
integer(psb_long_int_k_) :: val
val = 0
if (allocated(prec%dv)) then
val = val + psb_sizeof_dp * prec%dv%get_nrows()
endif
if (allocated(prec%av)) then
val = val + prec%av(psb_l_pr_)%sizeof()
val = val + prec%av(psb_u_pr_)%sizeof()
endif
return
end function psb_d_bjac_sizeof
function psb_d_bjac_get_nzeros(prec) result(val)
class(psb_d_bjac_prec_type), intent(in) :: prec
integer(psb_long_int_k_) :: val
val = 0
if (allocated(prec%dv)) then
val = val + prec%dv%get_nrows()
endif
if (allocated(prec%av)) then
val = val + prec%av(psb_l_pr_)%get_nzeros()
val = val + prec%av(psb_u_pr_)%get_nzeros()
endif
return
end function psb_d_bjac_get_nzeros
subroutine psb_d_bjac_precfree(prec,info)
Implicit None
class(psb_d_bjac_prec_type), intent(inout) :: prec
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act, i
character(len=20) :: name='d_bjac_precfree'
call psb_erractionsave(err_act)
info = psb_success_
if (allocated(prec%av)) then
do i=1,size(prec%av)
call prec%av(i)%free()
enddo
deallocate(prec%av,stat=info)
end if
if (allocated(prec%dv)) then
call prec%dv%free(info)
if (info == 0) deallocate(prec%dv,stat=info)
end if
if (allocated(prec%iprcparm)) then
deallocate(prec%iprcparm,stat=info)
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_d_bjac_precfree
subroutine psb_d_bjac_clone(prec,precout,info)
use psb_error_mod
use psb_realloc_mod
Implicit None
class(psb_d_bjac_prec_type), intent(inout) :: prec
class(psb_d_base_prec_type), allocatable, intent(out) :: precout
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act, i
character(len=20) :: name='d_bjac_clone'
call psb_erractionsave(err_act)
info = psb_success_
allocate(psb_d_bjac_prec_type :: precout, stat=info)
if (info /= 0) goto 9999
select type(pout => precout)
type is (psb_d_bjac_prec_type)
call pout%set_ctxt(prec%get_ctxt())
if (allocated(prec%av)) then
allocate(pout%av(size(prec%av)),stat=info)
do i=1,size(prec%av)
if (info /= psb_success_) exit
call prec%av(i)%clone(pout%av(i),info)
enddo
if (info /= psb_success_) goto 9999
end if
if (allocated(prec%dv)) then
allocate(pout%dv,stat=info)
if (info == 0) call prec%dv%clone(pout%dv,info)
end if
class default
info = psb_err_internal_error_
end select
if (info /= 0) goto 9999
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_d_bjac_clone
end module psb_d_bjacprec