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.
482 lines
14 KiB
Fortran
482 lines
14 KiB
Fortran
13 years ago
|
!!$
|
||
|
|
!!$
|
||
|
|
!!$ MLD2P4 version 2.0
|
||
|
|
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
||
|
|
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
|
||
|
|
!!$
|
||
|
|
!!$ (C) Copyright 2008,2009,2010
|
||
|
|
!!$
|
||
|
|
!!$ 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.
|
||
|
|
!!$
|
||
|
|
!!$
|
||
|
|
|
||
|
|
!
|
||
|
|
! Apply: comes in two versions, on plain arrays or on encapsulated
|
||
|
|
! vectors.
|
||
|
|
! This basic version just applies the local solver, whatever that
|
||
|
|
! is.
|
||
|
|
!
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_apply
|
||
|
|
implicit none
|
||
|
|
type(psb_desc_type), intent(in) :: desc_data
|
||
|
|
class(mld_s_base_smoother_type), intent(in) :: sm
|
||
|
|
real(psb_spk_),intent(inout) :: x(:)
|
||
|
|
real(psb_spk_),intent(inout) :: y(:)
|
||
|
|
real(psb_spk_),intent(in) :: alpha,beta
|
||
|
|
character(len=1),intent(in) :: trans
|
||
|
|
integer, intent(in) :: sweeps
|
||
|
|
real(psb_spk_),target, intent(inout) :: work(:)
|
||
|
|
integer, intent(out) :: info
|
||
|
|
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_apply'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%apply(alpha,x,beta,y,desc_data,trans,work,info)
|
||
|
|
else
|
||
|
|
info = 1121
|
||
|
|
endif
|
||
|
|
if (info /= psb_success_) then
|
||
|
|
call psb_errpush(info,name)
|
||
|
|
goto 9999
|
||
|
|
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 mld_s_base_smoother_apply
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,&
|
||
|
|
& trans,sweeps,work,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_apply_vect
|
||
|
|
implicit none
|
||
|
|
type(psb_desc_type), intent(in) :: desc_data
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
type(psb_s_vect_type),intent(inout) :: x
|
||
|
|
type(psb_s_vect_type),intent(inout) :: y
|
||
|
|
real(psb_spk_),intent(in) :: alpha,beta
|
||
|
|
character(len=1),intent(in) :: trans
|
||
|
|
integer, intent(in) :: sweeps
|
||
|
|
real(psb_spk_),target, intent(inout) :: work(:)
|
||
|
|
integer, intent(out) :: info
|
||
|
|
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_apply'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%apply(alpha,x,beta,y,desc_data,trans,work,info)
|
||
|
|
else
|
||
|
|
info = 1121
|
||
|
|
endif
|
||
|
|
if (info /= psb_success_) then
|
||
|
|
call psb_errpush(info,name)
|
||
|
|
goto 9999
|
||
|
|
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 mld_s_base_smoother_apply_vect
|
||
|
|
|
||
|
|
!
|
||
|
|
! Check:
|
||
|
|
! 1. Check that we do have a solver object
|
||
|
|
! 2. Call its check method
|
||
|
|
!
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_check(sm,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_check
|
||
|
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
integer, intent(out) :: info
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_check'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%check(info)
|
||
|
|
else
|
||
|
|
info=3111
|
||
|
|
call psb_errpush(info,name)
|
||
|
|
goto 9999
|
||
|
|
end if
|
||
|
|
|
||
|
|
if (info /= psb_success_) 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 mld_s_base_smoother_check
|
||
|
|
|
||
|
|
!
|
||
|
|
! Set methods: the come in multiple versions according
|
||
|
|
! to whether we are setting with integer, real or character
|
||
|
|
! input.
|
||
|
|
! The basic rule is: if the input refers to a parameter
|
||
|
|
! of the smoother, use it, otherwise pass it to the
|
||
|
|
! solver object for further processing.
|
||
|
|
! Since there are no parameters in the base smoother
|
||
|
|
! we just pass everything to the solver object.
|
||
|
|
!
|
||
|
|
subroutine mld_s_base_smoother_seti(sm,what,val,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_seti
|
||
|
|
Implicit None
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
integer, intent(in) :: what
|
||
|
|
integer, intent(in) :: val
|
||
|
|
integer, intent(out) :: info
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_seti'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%set(what,val,info)
|
||
|
|
end if
|
||
|
|
if (info /= psb_success_) 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 mld_s_base_smoother_seti
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_setc(sm,what,val,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_setc
|
||
|
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
integer, intent(in) :: what
|
||
|
|
character(len=*), intent(in) :: val
|
||
|
|
integer, intent(out) :: info
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_setc'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%set(what,val,info)
|
||
|
|
end if
|
||
|
|
if (info /= psb_success_) 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 mld_s_base_smoother_setc
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_setr(sm,what,val,info)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_setr
|
||
|
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
integer, intent(in) :: what
|
||
|
|
real(psb_spk_), intent(in) :: val
|
||
|
|
integer, intent(out) :: info
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_setr'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
|
||
|
|
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%set(what,val,info)
|
||
|
|
end if
|
||
|
|
if (info /= psb_success_) 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 mld_s_base_smoother_setr
|
||
|
|
|
||
|
|
|
||
|
|
!
|
||
|
|
! Build method.
|
||
|
|
! At base level we only have to pass data to the inner solver.
|
||
|
|
! AMOLD/VMOLD allow to have any relevant sparse matrix or vector
|
||
|
|
! to be stored in a given format. This is essential e.g.
|
||
|
|
! when dealing with GPUs.
|
||
|
|
!
|
||
|
|
subroutine mld_s_base_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_bld
|
||
|
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
type(psb_sspmat_type), intent(in), target :: a
|
||
|
|
Type(psb_desc_type), Intent(in) :: desc_a
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
character, intent(in) :: upd
|
||
|
|
integer, intent(out) :: info
|
||
|
|
class(psb_s_base_sparse_mat), intent(in), optional :: amold
|
||
|
|
class(psb_s_base_vect_type), intent(in), optional :: vmold
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_bld'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
|
||
|
|
info = psb_success_
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%build(a,desc_a,upd,info,amold=amold,vmold=vmold)
|
||
|
|
else
|
||
|
|
info = 1121
|
||
|
|
call psb_errpush(info,name)
|
||
|
|
endif
|
||
|
|
if (info /= psb_success_) 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 mld_s_base_smoother_bld
|
||
|
|
|
||
|
|
!
|
||
|
|
! Free method (aka destructor).
|
||
|
|
! In most cases we could do without; however
|
||
|
|
! for cases where there are data objects allocated outside
|
||
|
|
! of the Fortran RTE we need to free them explicitly.
|
||
|
|
!
|
||
|
|
! Even in that case, we could do without this if FINAL
|
||
|
|
! subroutines were supported, which is not the case
|
||
|
|
|
||
|
|
! in GNU Fortran up to 4.7.
|
||
|
|
!
|
||
|
|
subroutine mld_s_base_smoother_free(sm,info)
|
||
|
|
use psb_base_mod
|
||
|
13 years ago
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_free
|
||
|
13 years ago
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(inout) :: sm
|
||
|
|
integer, intent(out) :: info
|
||
|
|
Integer :: err_act
|
||
|
|
character(len=20) :: name='s_base_smoother_free'
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%free(info)
|
||
|
|
end if
|
||
|
|
if (info == psb_success_) deallocate(sm%sv,stat=info)
|
||
|
|
if (info /= psb_success_) then
|
||
|
|
info = psb_err_alloc_dealloc_
|
||
|
|
call psb_errpush(info,name)
|
||
|
|
goto 9999
|
||
|
|
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 mld_s_base_smoother_free
|
||
|
|
|
||
|
|
!
|
||
|
|
! Print a description
|
||
|
|
!
|
||
|
|
|
||
|
|
subroutine mld_s_base_smoother_descr(sm,info,iout,coarse)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_descr
|
||
|
|
Implicit None
|
||
|
|
|
||
|
|
! Arguments
|
||
|
|
class(mld_s_base_smoother_type), intent(in) :: sm
|
||
|
|
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_s_base_smoother_descr'
|
||
|
|
integer :: iout_
|
||
|
|
logical :: coarse_
|
||
|
|
|
||
|
|
|
||
|
|
call psb_erractionsave(err_act)
|
||
|
|
info = psb_success_
|
||
|
|
|
||
|
|
if (present(coarse)) then
|
||
|
|
coarse_ = coarse
|
||
|
|
else
|
||
|
|
coarse_ = .false.
|
||
|
|
end if
|
||
|
|
if (present(iout)) then
|
||
|
|
iout_ = iout
|
||
|
|
else
|
||
|
|
iout_ = 6
|
||
|
|
end if
|
||
|
|
|
||
|
|
if (.not.coarse_) &
|
||
|
|
& write(iout_,*) 'Base smoother with local solver'
|
||
|
|
if (allocated(sm%sv)) then
|
||
|
|
call sm%sv%descr(info,iout,coarse)
|
||
|
|
if (info /= psb_success_) then
|
||
|
|
info = psb_err_from_subroutine_
|
||
|
|
call psb_errpush(info,name,a_err='Local solver')
|
||
|
|
goto 9999
|
||
|
|
end if
|
||
|
|
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 mld_s_base_smoother_descr
|
||
|
|
|
||
|
|
!
|
||
|
|
! Dump
|
||
|
|
! to file, for debugging purposes.
|
||
|
|
!
|
||
|
|
subroutine mld_s_base_smoother_dmp(sm,ictxt,level,info,prefix,head,smoother,solver)
|
||
|
|
use psb_base_mod
|
||
|
|
use mld_s_base_smoother_mod, mld_protect_name => mld_s_base_smoother_dmp
|
||
|
|
implicit none
|
||
|
|
class(mld_s_base_smoother_type), intent(in) :: sm
|
||
|
|
integer, intent(in) :: ictxt,level
|
||
|
|
integer, intent(out) :: info
|
||
|
|
character(len=*), intent(in), optional :: prefix, head
|
||
|
|
logical, optional, intent(in) :: smoother, solver
|
||
|
|
integer :: i, j, il1, iln, lname, lev
|
||
|
|
integer :: icontxt,iam, np
|
||
|
|
character(len=80) :: prefix_
|
||
|
|
character(len=120) :: fname ! len should be at least 20 more than
|
||
|
|
logical :: smoother_
|
||
|
|
! len of prefix_
|
||
|
|
|
||
|
|
info = 0
|
||
|
|
|
||
|
|
if (present(prefix)) then
|
||
|
|
prefix_ = trim(prefix(1:min(len(prefix),len(prefix_))))
|
||
|
|
else
|
||
|
|
prefix_ = "dump_smth_s"
|
||
|
|
end if
|
||
|
|
|
||
|
|
call psb_info(ictxt,iam,np)
|
||
|
|
|
||
|
|
if (present(smoother)) then
|
||
|
|
smoother_ = smoother
|
||
|
|
else
|
||
|
|
smoother_ = .false.
|
||
|
|
end if
|
||
|
|
lname = len_trim(prefix_)
|
||
|
|
fname = trim(prefix_)
|
||
|
|
write(fname(lname+1:lname+5),'(a,i3.3)') '_p',iam
|
||
|
|
lname = lname + 5
|
||
|
|
|
||
|
|
! At base level do nothing for the smoother
|
||
|
|
if (allocated(sm%sv)) &
|
||
|
|
& call sm%sv%dump(ictxt,level,info,solver=solver)
|
||
|
|
|
||
|
|
end subroutine mld_s_base_smoother_dmp
|
||
|
|
|