You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
265 lines
8.6 KiB
Fortran
265 lines
8.6 KiB
Fortran
!
|
|
! Parallel Sparse BLAS version 3.4
|
|
! (C) Copyright 2006, 2010, 2015
|
|
! 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_diagprec
|
|
|
|
use psb_d_base_prec_mod
|
|
|
|
type, extends(psb_d_base_prec_type) :: psb_d_diag_prec_type
|
|
real(psb_dpk_), allocatable :: d(:)
|
|
type(psb_d_vect_type), allocatable :: dv
|
|
contains
|
|
procedure, pass(prec) :: d_apply_v => psb_d_diag_apply_vect
|
|
procedure, pass(prec) :: d_apply => psb_d_diag_apply
|
|
procedure, pass(prec) :: precbld => psb_d_diag_precbld
|
|
procedure, pass(prec) :: precinit => psb_d_diag_precinit
|
|
procedure, pass(prec) :: precdescr => psb_d_diag_precdescr
|
|
procedure, pass(prec) :: sizeof => psb_d_diag_sizeof
|
|
procedure, pass(prec) :: dump => psb_d_diag_dump
|
|
procedure, pass(prec) :: clone => psb_d_diag_clone
|
|
procedure, pass(prec) :: free => psb_d_diag_precfree
|
|
procedure, pass(prec) :: get_nzeros => psb_d_diag_get_nzeros
|
|
end type psb_d_diag_prec_type
|
|
|
|
private :: psb_d_diag_sizeof,&
|
|
& psb_d_diag_precinit, psb_d_diag_precfree, psb_d_diag_precdescr,&
|
|
& psb_d_diag_get_nzeros
|
|
|
|
|
|
|
|
interface
|
|
subroutine psb_d_diag_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
|
|
import :: psb_ipk_, psb_desc_type, psb_d_diag_prec_type, psb_d_vect_type, psb_dpk_
|
|
type(psb_desc_type),intent(in) :: desc_data
|
|
class(psb_d_diag_prec_type), intent(inout) :: prec
|
|
type(psb_d_vect_type),intent(inout) :: x
|
|
real(psb_dpk_),intent(in) :: alpha, beta
|
|
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_diag_apply_vect
|
|
end interface
|
|
|
|
interface
|
|
subroutine psb_d_diag_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
|
|
import :: psb_ipk_, psb_desc_type, psb_d_diag_prec_type, psb_d_vect_type, psb_dpk_
|
|
type(psb_desc_type),intent(in) :: desc_data
|
|
class(psb_d_diag_prec_type), intent(inout) :: prec
|
|
real(psb_dpk_),intent(inout) :: x(:)
|
|
real(psb_dpk_),intent(in) :: alpha, beta
|
|
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_diag_apply
|
|
end interface
|
|
|
|
interface
|
|
subroutine psb_d_diag_precbld(a,desc_a,prec,info,upd,amold,afmt,vmold)
|
|
import :: psb_ipk_, psb_desc_type, psb_d_diag_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_diag_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_diag_precbld
|
|
end interface
|
|
|
|
interface
|
|
subroutine psb_d_diag_dump(prec,info,prefix,head)
|
|
import :: psb_ipk_, psb_desc_type, psb_d_diag_prec_type, psb_d_vect_type, psb_dpk_
|
|
implicit none
|
|
class(psb_d_diag_prec_type), intent(in) :: prec
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character(len=*), intent(in), optional :: prefix,head
|
|
end subroutine psb_d_diag_dump
|
|
end interface
|
|
|
|
|
|
contains
|
|
|
|
|
|
subroutine psb_d_diag_precinit(prec,info)
|
|
Implicit None
|
|
|
|
class(psb_d_diag_prec_type),intent(inout) :: prec
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act, nrow
|
|
character(len=20) :: name='d_diag_precinit'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
end subroutine psb_d_diag_precinit
|
|
|
|
|
|
subroutine psb_d_diag_precfree(prec,info)
|
|
|
|
Implicit None
|
|
|
|
class(psb_d_diag_prec_type), intent(inout) :: prec
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_ipk_) :: err_act, nrow
|
|
character(len=20) :: name='d_diag_precset'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
|
|
if (allocated(prec%dv)) call prec%dv%free(info)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
|
|
end subroutine psb_d_diag_precfree
|
|
|
|
|
|
subroutine psb_d_diag_precdescr(prec,iout)
|
|
Implicit None
|
|
|
|
class(psb_d_diag_prec_type), intent(in) :: prec
|
|
integer(psb_ipk_), intent(in), optional :: iout
|
|
|
|
integer(psb_ipk_) :: err_act, nrow, info
|
|
character(len=20) :: name='d_diag_precdescr'
|
|
|
|
integer(psb_ipk_) :: iout_
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
|
|
if (present(iout)) then
|
|
iout_ = iout
|
|
else
|
|
iout_ = 6
|
|
end if
|
|
|
|
write(iout_,*) 'Diagonal scaling'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
|
|
end subroutine psb_d_diag_precdescr
|
|
|
|
function psb_d_diag_sizeof(prec) result(val)
|
|
class(psb_d_diag_prec_type), intent(in) :: prec
|
|
integer(psb_long_int_k_) :: val
|
|
|
|
val = psb_sizeof_dp * prec%get_nzeros()
|
|
return
|
|
end function psb_d_diag_sizeof
|
|
|
|
function psb_d_diag_get_nzeros(prec) result(val)
|
|
class(psb_d_diag_prec_type), intent(in) :: prec
|
|
integer(psb_long_int_k_) :: val
|
|
|
|
val = 0
|
|
if (allocated(prec%dv)) val = val + prec%dv%get_nrows()
|
|
return
|
|
end function psb_d_diag_get_nzeros
|
|
|
|
|
|
subroutine psb_d_diag_clone(prec,precout,info)
|
|
use psb_error_mod
|
|
use psb_realloc_mod
|
|
|
|
Implicit None
|
|
|
|
class(psb_d_diag_prec_type), intent(inout) :: prec
|
|
class(psb_d_base_prec_type), allocatable, intent(inout) :: precout
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_ipk_) :: err_act, i
|
|
character(len=20) :: name='d_diag_clone'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
if (allocated(precout)) then
|
|
call precout%free(info)
|
|
if (info == psb_success_) deallocate(precout, stat=info)
|
|
end if
|
|
if (info == psb_success_) &
|
|
& allocate(psb_d_diag_prec_type :: precout, stat=info)
|
|
if (info /= 0) goto 9999
|
|
select type(pout => precout)
|
|
type is (psb_d_diag_prec_type)
|
|
call pout%set_ctxt(prec%get_ctxt())
|
|
|
|
if (allocated(prec%dv)) then
|
|
allocate(pout%dv,stat=info)
|
|
if (info == 0) call prec%dv%clone(pout%dv,info)
|
|
end if
|
|
if (info == 0) call psb_safe_ab_cpy(prec%d,pout%d,info)
|
|
class default
|
|
info = psb_err_internal_error_
|
|
end select
|
|
if (info /= 0) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
|
|
end subroutine psb_d_diag_clone
|
|
|
|
|
|
end module psb_d_diagprec
|