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.
430 lines
13 KiB
Fortran
430 lines
13 KiB
Fortran
!!$
|
|
!!$
|
|
!!$ MLD2P4 version 2.0
|
|
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
|
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.3)
|
|
!!$
|
|
!!$ (C) Copyright 2008, 2010, 2012, 2015
|
|
!!$
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
|
|
!!$ Pasqua D'Ambra ICAR-CNR, Naples
|
|
!!$ Daniela di Serafino Second University of Naples
|
|
!!$
|
|
!!$ 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 MLD2P4 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 MLD2P4 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.
|
|
!!$
|
|
!!$
|
|
!
|
|
! File: mld_c_sludist_solver_mod.f90
|
|
!
|
|
! Module: mld_c_sludist_solver_mod
|
|
!
|
|
! This module defines:
|
|
! - the mld_c_sludist_solver_type data structure containing the ingredients
|
|
! to interface with the SuperLU_Dist package.
|
|
! 1. The factorization is distributed (and thus exact)
|
|
!
|
|
!
|
|
!
|
|
module mld_c_sludist_solver
|
|
|
|
use iso_c_binding
|
|
use mld_c_base_solver_mod
|
|
|
|
#if defined(LONG_INTEGERS)
|
|
|
|
type, extends(mld_c_base_solver_type) :: mld_c_sludist_solver_type
|
|
|
|
end type mld_c_sludist_solver_type
|
|
#else
|
|
type, extends(mld_c_base_solver_type) :: mld_c_sludist_solver_type
|
|
type(c_ptr) :: lufactors=c_null_ptr
|
|
integer(c_long_long) :: symbsize=0, numsize=0
|
|
contains
|
|
procedure, pass(sv) :: build => c_sludist_solver_bld
|
|
procedure, pass(sv) :: apply_a => c_sludist_solver_apply
|
|
procedure, pass(sv) :: apply_v => c_sludist_solver_apply_vect
|
|
procedure, pass(sv) :: free => c_sludist_solver_free
|
|
procedure, pass(sv) :: descr => c_sludist_solver_descr
|
|
procedure, pass(sv) :: sizeof => c_sludist_solver_sizeof
|
|
#if defined(HAVE_FINAL)
|
|
final :: c_sludist_solver_finalize
|
|
#endif
|
|
end type mld_c_sludist_solver_type
|
|
|
|
|
|
private :: c_sludist_solver_bld, c_sludist_solver_apply, &
|
|
& c_sludist_solver_free, c_sludist_solver_descr, &
|
|
& c_sludist_solver_sizeof, c_sludist_solver_apply_vect
|
|
#if defined(HAVE_FINAL)
|
|
private :: c_sludist_solver_finalize
|
|
#endif
|
|
|
|
|
|
interface
|
|
function mld_csludist_fact(n,nl,nnz,ifrst, &
|
|
& values,rowptr,colind,lufactors,npr,npc) &
|
|
& bind(c,name='mld_csludist_fact') result(info)
|
|
use iso_c_binding
|
|
integer(c_int), value :: n,nl,nnz,ifrst,npr,npc
|
|
integer(c_int) :: info
|
|
integer(c_int) :: rowptr(*),colind(*)
|
|
complex(c_float_complex) :: values(*)
|
|
type(c_ptr) :: lufactors
|
|
end function mld_csludist_fact
|
|
end interface
|
|
|
|
interface
|
|
function mld_csludist_solve(itrans,n,nrhs, b, ldb, lufactors)&
|
|
& bind(c,name='mld_csludist_solve') result(info)
|
|
use iso_c_binding
|
|
integer(c_int) :: info
|
|
integer(c_int), value :: itrans,n,nrhs,ldb
|
|
complex(c_float_complex) :: b(ldb,*)
|
|
type(c_ptr), value :: lufactors
|
|
end function mld_csludist_solve
|
|
end interface
|
|
|
|
interface
|
|
function mld_csludist_free(lufactors)&
|
|
& bind(c,name='mld_csludist_free') result(info)
|
|
use iso_c_binding
|
|
integer(c_int) :: info
|
|
type(c_ptr), value :: lufactors
|
|
end function mld_csludist_free
|
|
end interface
|
|
|
|
contains
|
|
|
|
subroutine c_sludist_solver_apply(alpha,sv,x,beta,y,desc_data,&
|
|
& trans,work,info,init,initu)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_c_sludist_solver_type), intent(inout) :: sv
|
|
complex(psb_spk_),intent(inout) :: x(:)
|
|
complex(psb_spk_),intent(inout) :: y(:)
|
|
complex(psb_spk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
complex(psb_spk_),target, intent(inout) :: work(:)
|
|
integer, intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
complex(psb_spk_),intent(inout), optional :: initu(:)
|
|
|
|
integer :: n_row,n_col
|
|
complex(psb_spk_), pointer :: ww(:)
|
|
integer :: ictxt,np,me,i, err_act
|
|
character :: trans_
|
|
character(len=20) :: name='c_sludist_solver_apply'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
|
|
trans_ = psb_toupper(trans)
|
|
select case(trans_)
|
|
case('N')
|
|
case('T','C')
|
|
case default
|
|
call psb_errpush(psb_err_iarg_invalid_i_,name)
|
|
goto 9999
|
|
end select
|
|
!
|
|
! For non-iterative solvers, init and initu are ignored.
|
|
!
|
|
|
|
|
|
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)
|
|
else
|
|
allocate(ww(n_col),stat=info)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_alloc_request_
|
|
call psb_errpush(info,name,i_err=(/n_col,0,0,0,0/),&
|
|
& a_err='complex(psb_spk_)')
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
if (info == psb_success_)&
|
|
& call psb_geaxpby(cone,x,czero,ww,desc_data,info)
|
|
|
|
select case(trans_)
|
|
case('N')
|
|
info = mld_csludist_solve(0,n_row,1,ww,n_row,sv%lufactors)
|
|
case('T')
|
|
info = mld_csludist_solve(1,n_row,1,ww,n_row,sv%lufactors)
|
|
case('C')
|
|
info = mld_csludist_solve(2,n_row,1,ww,n_row,sv%lufactors)
|
|
case default
|
|
call psb_errpush(psb_err_internal_error_,&
|
|
& name,a_err='Invalid TRANS in subsolve')
|
|
goto 9999
|
|
end select
|
|
|
|
if (info == psb_success_)&
|
|
& call psb_geaxpby(alpha,ww,beta,y,desc_data,info)
|
|
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,&
|
|
& name,a_err='Error in subsolve')
|
|
goto 9999
|
|
endif
|
|
|
|
if (n_col > size(work)) then
|
|
deallocate(ww)
|
|
endif
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine c_sludist_solver_apply
|
|
|
|
subroutine c_sludist_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
|
|
& trans,work,info,init,initu)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_c_sludist_solver_type), intent(inout) :: sv
|
|
type(psb_c_vect_type),intent(inout) :: x
|
|
type(psb_c_vect_type),intent(inout) :: y
|
|
complex(psb_spk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
complex(psb_spk_),target, intent(inout) :: work(:)
|
|
integer, intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
type(psb_c_vect_type),intent(inout), optional :: initu
|
|
|
|
integer :: err_act
|
|
character(len=20) :: name='c_sludist_solver_apply_vect'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
!
|
|
! For non-iterative solvers, init and initu are ignored.
|
|
!
|
|
|
|
|
|
call x%v%sync()
|
|
call y%v%sync()
|
|
call sv%apply(alpha,x%v%v,beta,y%v%v,desc_data,trans,work,info)
|
|
call y%v%set_host()
|
|
if (info /= 0) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine c_sludist_solver_apply_vect
|
|
|
|
subroutine c_sludist_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold,imold)
|
|
|
|
use psb_base_mod
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
type(psb_cspmat_type), intent(in), target :: a
|
|
Type(psb_desc_type), Intent(in) :: desc_a
|
|
class(mld_c_sludist_solver_type), intent(inout) :: sv
|
|
character, intent(in) :: upd
|
|
integer, intent(out) :: info
|
|
type(psb_cspmat_type), intent(in), target, optional :: b
|
|
class(psb_c_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_c_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
! Local variables
|
|
type(psb_cspmat_type) :: atmp
|
|
type(psb_c_csr_sparse_mat) :: acsr
|
|
integer :: n_row,n_col, nrow_a, nztota, nglob, nzt, npr, npc
|
|
integer :: ifrst, ibcheck
|
|
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
|
character(len=20) :: name='c_sludist_solver_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)
|
|
npr = np
|
|
npc = 1
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),' start'
|
|
|
|
|
|
if (psb_toupper(upd) == 'F') then
|
|
|
|
n_row = desc_a%get_local_rows()
|
|
n_col = desc_a%get_local_cols()
|
|
nglob = desc_a%get_global_rows()
|
|
|
|
call a%cscnv(atmp,info,type='coo')
|
|
call psb_rwextd(n_row,atmp,info,b=b)
|
|
call atmp%cscnv(info,type='csr',dupl=psb_dupl_add_)
|
|
call atmp%mv_to(acsr)
|
|
nrow_a = acsr%get_nrows()
|
|
nztota = acsr%get_nzeros()
|
|
! Fix the entries to call C-base SuperLU
|
|
call psb_loc_to_glob(1,ifrst,desc_a,info)
|
|
call psb_loc_to_glob(nrow_a,ibcheck,desc_a,info)
|
|
call psb_loc_to_glob(acsr%ja(1:nztota),desc_a,info,iact='I')
|
|
acsr%ja(:) = acsr%ja(:) - 1
|
|
acsr%irp(:) = acsr%irp(:) - 1
|
|
ifrst = ifrst - 1
|
|
info = mld_csludist_fact(nglob,nrow_a,nztota,ifrst,&
|
|
& acsr%val,acsr%irp,acsr%ja,sv%lufactors,&
|
|
& npr,npc)
|
|
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='mld_csludist_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
call acsr%free()
|
|
call atmp%free()
|
|
else
|
|
! ?
|
|
info=psb_err_internal_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
|
|
end if
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),' end'
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine c_sludist_solver_bld
|
|
|
|
subroutine c_sludist_solver_free(sv,info)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_c_sludist_solver_type), intent(inout) :: sv
|
|
integer, intent(out) :: info
|
|
Integer :: err_act
|
|
character(len=20) :: name='c_sludist_solver_free'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
info = mld_csludist_free(sv%lufactors)
|
|
|
|
if (info /= psb_success_) goto 9999
|
|
sv%lufactors = c_null_ptr
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine c_sludist_solver_free
|
|
|
|
#if defined(HAVE_FINAL)
|
|
subroutine c_sludist_solver_finalize(sv)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
type(mld_c_sludist_solver_type), intent(inout) :: sv
|
|
integer :: info
|
|
Integer :: err_act
|
|
character(len=20) :: name='c_sludist_solver_finalize'
|
|
|
|
call sv%free(info)
|
|
|
|
return
|
|
|
|
end subroutine c_sludist_solver_finalize
|
|
#endif
|
|
|
|
subroutine c_sludist_solver_descr(sv,info,iout,coarse)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_c_sludist_solver_type), intent(in) :: sv
|
|
integer, intent(out) :: info
|
|
integer, intent(in), optional :: iout
|
|
logical, intent(in), optional :: coarse
|
|
|
|
! Local variables
|
|
integer :: err_act
|
|
integer :: ictxt, me, np
|
|
character(len=20), parameter :: name='mld_c_sludist_solver_descr'
|
|
integer :: iout_
|
|
|
|
call psb_erractionsave(err_act)
|
|
info = psb_success_
|
|
if (present(iout)) then
|
|
iout_ = iout
|
|
else
|
|
iout_ = 6
|
|
endif
|
|
|
|
write(iout_,*) ' SuperLU_Dist Sparse Factorization Solver. '
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine c_sludist_solver_descr
|
|
|
|
function c_sludist_solver_sizeof(sv) result(val)
|
|
|
|
implicit none
|
|
! Arguments
|
|
class(mld_c_sludist_solver_type), intent(in) :: sv
|
|
integer(psb_long_int_k_) :: val
|
|
integer :: i
|
|
|
|
val = 2*psb_sizeof_int + psb_sizeof_dp
|
|
val = val + sv%symbsize
|
|
val = val + sv%numsize
|
|
return
|
|
end function c_sludist_solver_sizeof
|
|
#endif
|
|
end module mld_c_sludist_solver
|