fdurastante
/
amg4psblas
mirror of https://github.com/sfilippone/amg4psblas.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

mld2p4-extaggr:

Browse Source 
mlprec/impl/Makefile
 mlprec/impl/mld_c_bld_mlhier_aggsize.f90
 mlprec/impl/mld_c_bld_mlhier_array.f90
 mlprec/impl/mld_c_hierarchy_bld.f90
 mlprec/impl/mld_cmlprec_bld.f90
 mlprec/impl/mld_d_bld_mlhier_aggsize.f90
 mlprec/impl/mld_d_bld_mlhier_array.f90
 mlprec/impl/mld_d_hierarchy_bld.f90
 mlprec/impl/mld_dmlprec_bld.f90
 mlprec/impl/mld_s_bld_mlhier_aggsize.f90
 mlprec/impl/mld_s_bld_mlhier_array.f90
 mlprec/impl/mld_s_hierarchy_bld.f90
 mlprec/impl/mld_smlprec_bld.f90
 mlprec/impl/mld_z_bld_mlhier_aggsize.f90
 mlprec/impl/mld_z_bld_mlhier_array.f90
 mlprec/impl/mld_z_hierarchy_bld.f90
 mlprec/impl/mld_zmlprec_bld.f90
 mlprec/mld_c_prec_mod.f90
 mlprec/mld_d_prec_mod.f90
 mlprec/mld_s_prec_mod.f90
 mlprec/mld_z_prec_mod.f90

Taken out mold from hierarchy_bld.
bld_mlhier_aggsize and bld_mlhier_array are now superseded.
stopcriterion
Salvatore Filippone 8 years ago
parent 466e0b442a
commit 0d36e968c3
21 changed files with 24 additions and 2156 deletions
Show Stats Download Patch File Download Diff File

8
mlprec/impl/Makefile
Unescape Escape View File

@ -22,25 +22,25 @@ MPFOBJS=$(SMPFOBJS) $(DMPFOBJS) $(CMPFOBJS) $(ZMPFOBJS)
MPCOBJS=mld_sslud_interface.o mld_dslud_interface.o mld_cslud_interface.o mld_zslud_interface.o
DINNEROBJS= mld_dmlprec_bld.o mld_d_bld_mlhier_aggsize.o mld_d_bld_mlhier_array.o \
DINNEROBJS= mld_dmlprec_bld.o \
mld_d_ml_prec_bld.o mld_d_hierarchy_bld.o \
mld_dilu0_fact.o mld_diluk_fact.o mld_dilut_fact.o mld_daggrmap_bld.o \
mld_d_dec_map_bld.o mld_dmlprec_aply.o mld_daggrmat_asb.o \
$(DMPFOBJS) mld_d_extprol_bld.o mld_d_lev_aggrmap_bld.o mld_d_lev_aggrmat_asb.o
SINNEROBJS= mld_smlprec_bld.o mld_s_bld_mlhier_aggsize.o mld_s_bld_mlhier_array.o \
SINNEROBJS= mld_smlprec_bld.o \
mld_s_ml_prec_bld.o mld_s_hierarchy_bld.o \
mld_silu0_fact.o mld_siluk_fact.o mld_silut_fact.o mld_saggrmap_bld.o \
mld_s_dec_map_bld.o mld_smlprec_aply.o mld_saggrmat_asb.o \
$(SMPFOBJS) mld_s_extprol_bld.o mld_s_lev_aggrmap_bld.o mld_s_lev_aggrmat_asb.o
ZINNEROBJS= mld_zmlprec_bld.o mld_z_bld_mlhier_aggsize.o mld_z_bld_mlhier_array.o \
ZINNEROBJS= mld_zmlprec_bld.o \
mld_z_ml_prec_bld.o mld_z_hierarchy_bld.o \
mld_zilu0_fact.o mld_ziluk_fact.o mld_zilut_fact.o mld_zaggrmap_bld.o \
mld_z_dec_map_bld.o mld_zmlprec_aply.o mld_zaggrmat_asb.o \
$(ZMPFOBJS) mld_z_extprol_bld.o mld_z_lev_aggrmap_bld.o mld_z_lev_aggrmat_asb.o
CINNEROBJS= mld_cmlprec_bld.o mld_c_bld_mlhier_aggsize.o mld_c_bld_mlhier_array.o \
CINNEROBJS= mld_cmlprec_bld.o \
mld_c_ml_prec_bld.o mld_c_hierarchy_bld.o \
mld_cilu0_fact.o mld_ciluk_fact.o mld_cilut_fact.o mld_caggrmap_bld.o \
mld_c_dec_map_bld.o mld_cmlprec_aply.o mld_caggrmat_asb.o \

268
mlprec/impl/mld_c_bld_mlhier_aggsize.f90
Unescape Escape View File

@ -1,268 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
!
! Build an aggregation hierarchy with a target aggregation size
!
!
subroutine mld_c_bld_mlhier_aggsize(casize,mxplevs,mnaggratio,a,desc_a,precv,info)
use psb_base_mod
use mld_c_inner_mod, mld_protect_name => mld_c_bld_mlhier_aggsize
use mld_c_prec_mod
implicit none
integer(psb_ipk_), intent(in) :: casize,mxplevs
real(psb_spk_) :: mnaggratio
type(psb_cspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_c_onelev_type), allocatable, target, intent(inout) :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, iaggsize
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
integer(psb_ipk_) :: int_err(5)
character :: upd_
class(mld_c_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm, base_sm2, med_sm2
type(mld_sml_parms) :: baseparms, medparms, coarseparms
type(mld_c_onelev_node), pointer :: head, tail, newnode, current
real(psb_spk_) :: sizeratio
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_mlhier_aggsize'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
!
! New strategy to build according to coarse size.
!
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if ((info == psb_success_).and.allocated(precv(1)%sm2a)) &
& allocate(base_sm2, source=precv(1)%sm2a,stat=info)
if ((info == psb_success_).and.allocated(precv(2)%sm2a)) &
& allocate(med_sm2, source=precv(2)%sm2a,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
! Replicated matrix should only ever happen at coarse level.
!
call mld_check_def(baseparms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
!
! Now build a doubly linked list
!
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
head => newnode
tail => newnode
newnode%item%base_a => a
newnode%item%base_desc => desc_a
newnode%item%parms = baseparms
newsz = 1
current => head
list_build_loop: do
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
current%next => newnode
newnode%prev => current
newsz = newsz + 1
newnode%item%parms = medparms
newnode%item%parms%aggr_thresh = &
& (current%item%parms%aggr_thresh)*(current%item%parms%aggr_scale)
call mld_coarse_bld(current%item%base_a, current%item%base_desc, &
& newnode%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
current => current%next
tail => current
iaggsize = sum(current%item%map%naggr)
if (iaggsize <= casize) then
!
! Target reached; but we may need to rebuild.
!
exit list_build_loop
end if
if (newsz>2) then
sizeratio = iaggsize
sizeratio = sum(current%prev%item%map%naggr)/sizeratio
if (sizeratio < mnaggratio) then
if (sizeratio > 1) exit list_build_loop
!
! We are not gaining
!
newsz = newsz-1
current => current%prev
current%next =>null()
call newnode%item%free(info)
if (info == psb_success_) deallocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Deallocate at list end'); goto 9999
end if
exit list_build_loop
end if
end if
end do list_build_loop
!
! At this point, we are at the list tail.
! If the top aggregation parameters were different, then we need to rebuild;
! the threshold has to be fixed before rebuliding, and the parms must be
! copied anyway since they'll be used later for the smoother build.
!
coarseparms%aggr_thresh = current%item%parms%aggr_thresh
if (.not.mld_equal_aggregation(current%item%parms, coarseparms)) then
! Need to rebuild.
current%item%parms = coarseparms
call mld_coarse_bld(current%prev%item%base_a,&
& current%prev%item%base_desc, &
& current%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
else
! Need only copy the parms.
current%item%parms = coarseparms
end if
!
! Ok, now allocate the output vector and fix items.
!
do i=1,iszv
if (info == psb_success_) call precv(i)%free(info)
end do
if (info == psb_success_) deallocate(precv,stat=info)
if (info == psb_success_) allocate(precv(newsz),stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Reallocate precv'); goto 9999
end if
newnode => head
do i=1, newsz
current => newnode
! First do a move_alloc.
! This handles the AC, DESC_AC and MAP fields
if (info == psb_success_) &
& call current%item%move_alloc(precv(i),info)
! Now set the smoother/solver parts.
if (info == psb_success_) then
if (i ==1) then
allocate(precv(i)%sm,source=base_sm,stat=info)
if (allocated(base_sm2)) then
allocate(precv(i)%sm2a,source=base_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else if (i < newsz) then
allocate(precv(i)%sm,source=med_sm,stat=info)
if (allocated(med_sm2)) then
allocate(precv(i)%sm2a,source=med_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else
allocate(precv(i)%sm,source=coarse_sm,stat=info)
end if
end if
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='list cpy'); goto 9999
end if
if (i == 1) then
precv(i)%base_a => a
precv(i)%base_desc => desc_a
else
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end if
newnode => current%next
deallocate(current)
end do
call base_sm%free(info)
if (info == psb_success_) call med_sm%free(info)
if (info == psb_success_) call coarse_sm%free(info)
if ((info == psb_success_).and.(allocated(base_sm2))) call base_sm2%free(info)
if ((info == psb_success_).and.(allocated(med_sm2))) call med_sm2%free(info)
if (info == psb_success_) deallocate(coarse_sm,med_sm,base_sm,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='final cleanup'); goto 9999
end if
iszv = newsz
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_c_bld_mlhier_aggsize

246
mlprec/impl/mld_c_bld_mlhier_array.f90
Unescape Escape View File

@ -1,246 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
subroutine mld_c_bld_mlhier_array(nplevs,a,desc_a,precv,info)
use psb_base_mod
use mld_c_inner_mod, mld_protect_name => mld_c_bld_mlhier_array
use mld_c_prec_mod
implicit none
integer(psb_ipk_), intent(inout) :: nplevs
type(psb_cspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_c_onelev_type),intent(inout), allocatable, target :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, newsz, iszv
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
class(mld_c_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm
type(mld_sml_parms) :: baseparms, medparms, coarseparms
type(mld_c_onelev_type), allocatable :: tprecv(:)
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_array_hierarchy'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
!
! Build the matrix and the transfer operators corresponding
! to the remaining levels
!
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(1)%parms)
iszv = size(precv)
!
! First set desired number of levels
!
if (iszv /= nplevs) then
allocate(tprecv(nplevs),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
tprecv(1)%parms = baseparms
allocate(tprecv(1)%sm,source=base_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=2,nplevs-1
tprecv(i)%parms = medparms
allocate(tprecv(i)%sm,source=med_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
end do
tprecv(nplevs)%parms = coarseparms
allocate(tprecv(nplevs)%sm,source=coarse_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
iszv = size(precv)
end if
!
! Finest level first; remember to fix base_a and base_desc
!
precv(1)%base_a => a
precv(1)%base_desc => desc_a
newsz = 0
array_build_loop: do i=2, iszv
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(i)%parms)
!
! Sanity checks on the parameters
!
if (i<iszv) then
!
! A replicated matrix only makes sense at the coarsest level
!
call mld_check_def(precv(i)%parms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Calling mlprcbld at level ',i
!
! Build the mapping between levels i-1 and i and the matrix
! at level i
!
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Init upper level preconditioner')
goto 9999
endif
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Return from ',i,' call to mlprcbld ',info
if (i>2) then
if (all(precv(i)%map%naggr == precv(i-1)%map%naggr)) then
newsz=i-1
end if
call psb_bcast(ictxt,newsz)
if (newsz > 0) exit array_build_loop
end if
end do array_build_loop
if (newsz > 0) then
if (me == 0) then
write(debug_unit,*) trim(name),&
&': Warning: aggregates from level ',&
& newsz
write(debug_unit,*) trim(name),&
&': to level ',&
& iszv,' coincide.'
write(debug_unit,*) trim(name),&
&': Number of levels actually used :',newsz
write(debug_unit,*)
end if
allocate(tprecv(newsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,newsz-1
call precv(i)%move_alloc(tprecv(i),info)
end do
call precv(iszv)%move_alloc(tprecv(newsz),info)
do i=newsz+1, iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
! Ignore errors from transfer
info = psb_success_
!
! Restart
iszv = newsz
! Fix the pointers, but the level 1 should
! be already OK
do i=2, iszv - 1
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end do
i = iszv
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='coarse rebuild')
goto 9999
endif
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_c_bld_mlhier_array

19
mlprec/impl/mld_c_hierarchy_bld.f90
Unescape Escape View File

@ -63,18 +63,7 @@
! info - integer, output.
! Error code.
!
! amold - class(psb_c_base_sparse_mat), input, optional
! Mold for the inner format of matrices contained in the
! preconditioner
!
!
! vmold - class(psb_c_base_vect_type), input, optional
! Mold for the inner format of vectors contained in the
! preconditioner
!
!
!
subroutine mld_c_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
subroutine mld_c_hierarchy_bld(a,desc_a,p,info)
use psb_base_mod
use mld_c_inner_mod
@ -87,9 +76,6 @@ subroutine mld_c_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_cprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
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
!!$ character, intent(in), optional :: upd
! Local Variables
@ -206,11 +192,10 @@ subroutine mld_c_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
! 4. If the size of the array is different from target number of levels,
! reallocate;
! 5. Build the matrix hierarchy, stopping early if either the target
! coarse size is hit, or the gain fall below the mmin_aggr_ratio
! coarse size is hit, or the gain falls below the min_aggr_ratio
! threshold.
!
if (nplevs <= 0) then
if (casize <=0) then
!

2
mlprec/impl/mld_cmlprec_bld.f90
Unescape Escape View File

@ -119,7 +119,7 @@ subroutine mld_cmlprec_bld(a,desc_a,p,info,amold,vmold,imold)
& write(debug_unit,*) me,' ',trim(name),&
& 'Entering '
call mld_c_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
call mld_c_hierarchy_bld(a,desc_a,p,info)
if (info /= psb_success_) then
info=psb_err_internal_error_

268
mlprec/impl/mld_d_bld_mlhier_aggsize.f90
Unescape Escape View File

@ -1,268 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
!
! Build an aggregation hierarchy with a target aggregation size
!
!
subroutine mld_d_bld_mlhier_aggsize(casize,mxplevs,mnaggratio,a,desc_a,precv,info)
use psb_base_mod
use mld_d_inner_mod, mld_protect_name => mld_d_bld_mlhier_aggsize
use mld_d_prec_mod
implicit none
integer(psb_ipk_), intent(in) :: casize,mxplevs
real(psb_dpk_) :: mnaggratio
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_d_onelev_type), allocatable, target, intent(inout) :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, iaggsize
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
integer(psb_ipk_) :: int_err(5)
character :: upd_
class(mld_d_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm, base_sm2, med_sm2
type(mld_dml_parms) :: baseparms, medparms, coarseparms
type(mld_d_onelev_node), pointer :: head, tail, newnode, current
real(psb_dpk_) :: sizeratio
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_mlhier_aggsize'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
!
! New strategy to build according to coarse size.
!
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if ((info == psb_success_).and.allocated(precv(1)%sm2a)) &
& allocate(base_sm2, source=precv(1)%sm2a,stat=info)
if ((info == psb_success_).and.allocated(precv(2)%sm2a)) &
& allocate(med_sm2, source=precv(2)%sm2a,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
! Replicated matrix should only ever happen at coarse level.
!
call mld_check_def(baseparms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
!
! Now build a doubly linked list
!
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
head => newnode
tail => newnode
newnode%item%base_a => a
newnode%item%base_desc => desc_a
newnode%item%parms = baseparms
newsz = 1
current => head
list_build_loop: do
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
current%next => newnode
newnode%prev => current
newsz = newsz + 1
newnode%item%parms = medparms
newnode%item%parms%aggr_thresh = &
& (current%item%parms%aggr_thresh)*(current%item%parms%aggr_scale)
call mld_coarse_bld(current%item%base_a, current%item%base_desc, &
& newnode%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
current => current%next
tail => current
iaggsize = sum(current%item%map%naggr)
if (iaggsize <= casize) then
!
! Target reached; but we may need to rebuild.
!
exit list_build_loop
end if
if (newsz>2) then
sizeratio = iaggsize
sizeratio = sum(current%prev%item%map%naggr)/sizeratio
if (sizeratio < mnaggratio) then
if (sizeratio > 1) exit list_build_loop
!
! We are not gaining
!
newsz = newsz-1
current => current%prev
current%next =>null()
call newnode%item%free(info)
if (info == psb_success_) deallocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Deallocate at list end'); goto 9999
end if
exit list_build_loop
end if
end if
end do list_build_loop
!
! At this point, we are at the list tail.
! If the top aggregation parameters were different, then we need to rebuild;
! the threshold has to be fixed before rebuliding, and the parms must be
! copied anyway since they'll be used later for the smoother build.
!
coarseparms%aggr_thresh = current%item%parms%aggr_thresh
if (.not.mld_equal_aggregation(current%item%parms, coarseparms)) then
! Need to rebuild.
current%item%parms = coarseparms
call mld_coarse_bld(current%prev%item%base_a,&
& current%prev%item%base_desc, &
& current%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
else
! Need only copy the parms.
current%item%parms = coarseparms
end if
!
! Ok, now allocate the output vector and fix items.
!
do i=1,iszv
if (info == psb_success_) call precv(i)%free(info)
end do
if (info == psb_success_) deallocate(precv,stat=info)
if (info == psb_success_) allocate(precv(newsz),stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Reallocate precv'); goto 9999
end if
newnode => head
do i=1, newsz
current => newnode
! First do a move_alloc.
! This handles the AC, DESC_AC and MAP fields
if (info == psb_success_) &
& call current%item%move_alloc(precv(i),info)
! Now set the smoother/solver parts.
if (info == psb_success_) then
if (i ==1) then
allocate(precv(i)%sm,source=base_sm,stat=info)
if (allocated(base_sm2)) then
allocate(precv(i)%sm2a,source=base_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else if (i < newsz) then
allocate(precv(i)%sm,source=med_sm,stat=info)
if (allocated(med_sm2)) then
allocate(precv(i)%sm2a,source=med_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else
allocate(precv(i)%sm,source=coarse_sm,stat=info)
end if
end if
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='list cpy'); goto 9999
end if
if (i == 1) then
precv(i)%base_a => a
precv(i)%base_desc => desc_a
else
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end if
newnode => current%next
deallocate(current)
end do
call base_sm%free(info)
if (info == psb_success_) call med_sm%free(info)
if (info == psb_success_) call coarse_sm%free(info)
if ((info == psb_success_).and.(allocated(base_sm2))) call base_sm2%free(info)
if ((info == psb_success_).and.(allocated(med_sm2))) call med_sm2%free(info)
if (info == psb_success_) deallocate(coarse_sm,med_sm,base_sm,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='final cleanup'); goto 9999
end if
iszv = newsz
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_d_bld_mlhier_aggsize

246
mlprec/impl/mld_d_bld_mlhier_array.f90
Unescape Escape View File

@ -1,246 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
subroutine mld_d_bld_mlhier_array(nplevs,a,desc_a,precv,info)
use psb_base_mod
use mld_d_inner_mod, mld_protect_name => mld_d_bld_mlhier_array
use mld_d_prec_mod
implicit none
integer(psb_ipk_), intent(inout) :: nplevs
type(psb_dspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_d_onelev_type),intent(inout), allocatable, target :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, newsz, iszv
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
class(mld_d_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm
type(mld_dml_parms) :: baseparms, medparms, coarseparms
type(mld_d_onelev_type), allocatable :: tprecv(:)
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_array_hierarchy'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
!
! Build the matrix and the transfer operators corresponding
! to the remaining levels
!
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(1)%parms)
iszv = size(precv)
!
! First set desired number of levels
!
if (iszv /= nplevs) then
allocate(tprecv(nplevs),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
tprecv(1)%parms = baseparms
allocate(tprecv(1)%sm,source=base_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=2,nplevs-1
tprecv(i)%parms = medparms
allocate(tprecv(i)%sm,source=med_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
end do
tprecv(nplevs)%parms = coarseparms
allocate(tprecv(nplevs)%sm,source=coarse_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
iszv = size(precv)
end if
!
! Finest level first; remember to fix base_a and base_desc
!
precv(1)%base_a => a
precv(1)%base_desc => desc_a
newsz = 0
array_build_loop: do i=2, iszv
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(i)%parms)
!
! Sanity checks on the parameters
!
if (i<iszv) then
!
! A replicated matrix only makes sense at the coarsest level
!
call mld_check_def(precv(i)%parms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Calling mlprcbld at level ',i
!
! Build the mapping between levels i-1 and i and the matrix
! at level i
!
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Init upper level preconditioner')
goto 9999
endif
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Return from ',i,' call to mlprcbld ',info
if (i>2) then
if (all(precv(i)%map%naggr == precv(i-1)%map%naggr)) then
newsz=i-1
end if
call psb_bcast(ictxt,newsz)
if (newsz > 0) exit array_build_loop
end if
end do array_build_loop
if (newsz > 0) then
if (me == 0) then
write(debug_unit,*) trim(name),&
&': Warning: aggregates from level ',&
& newsz
write(debug_unit,*) trim(name),&
&': to level ',&
& iszv,' coincide.'
write(debug_unit,*) trim(name),&
&': Number of levels actually used :',newsz
write(debug_unit,*)
end if
allocate(tprecv(newsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,newsz-1
call precv(i)%move_alloc(tprecv(i),info)
end do
call precv(iszv)%move_alloc(tprecv(newsz),info)
do i=newsz+1, iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
! Ignore errors from transfer
info = psb_success_
!
! Restart
iszv = newsz
! Fix the pointers, but the level 1 should
! be already OK
do i=2, iszv - 1
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end do
i = iszv
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='coarse rebuild')
goto 9999
endif
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_d_bld_mlhier_array

19
mlprec/impl/mld_d_hierarchy_bld.f90
Unescape Escape View File

@ -63,18 +63,7 @@
! info - integer, output.
! Error code.
!
! amold - class(psb_d_base_sparse_mat), input, optional
! Mold for the inner format of matrices contained in the
! preconditioner
!
!
! vmold - class(psb_d_base_vect_type), input, optional
! Mold for the inner format of vectors contained in the
! preconditioner
!
!
!
subroutine mld_d_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
subroutine mld_d_hierarchy_bld(a,desc_a,p,info)
use psb_base_mod
use mld_d_inner_mod
@ -87,9 +76,6 @@ subroutine mld_d_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
!!$ character, intent(in), optional :: upd
! Local Variables
@ -206,11 +192,10 @@ subroutine mld_d_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
! 4. If the size of the array is different from target number of levels,
! reallocate;
! 5. Build the matrix hierarchy, stopping early if either the target
! coarse size is hit, or the gain fall below the mmin_aggr_ratio
! coarse size is hit, or the gain falls below the min_aggr_ratio
! threshold.
!
if (nplevs <= 0) then
if (casize <=0) then
!

2
mlprec/impl/mld_dmlprec_bld.f90
Unescape Escape View File

@ -119,7 +119,7 @@ subroutine mld_dmlprec_bld(a,desc_a,p,info,amold,vmold,imold)
& write(debug_unit,*) me,' ',trim(name),&
& 'Entering '
call mld_d_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
call mld_d_hierarchy_bld(a,desc_a,p,info)
if (info /= psb_success_) then
info=psb_err_internal_error_

268
mlprec/impl/mld_s_bld_mlhier_aggsize.f90
Unescape Escape View File

@ -1,268 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
!
! Build an aggregation hierarchy with a target aggregation size
!
!
subroutine mld_s_bld_mlhier_aggsize(casize,mxplevs,mnaggratio,a,desc_a,precv,info)
use psb_base_mod
use mld_s_inner_mod, mld_protect_name => mld_s_bld_mlhier_aggsize
use mld_s_prec_mod
implicit none
integer(psb_ipk_), intent(in) :: casize,mxplevs
real(psb_spk_) :: mnaggratio
type(psb_sspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_s_onelev_type), allocatable, target, intent(inout) :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, iaggsize
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
integer(psb_ipk_) :: int_err(5)
character :: upd_
class(mld_s_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm, base_sm2, med_sm2
type(mld_sml_parms) :: baseparms, medparms, coarseparms
type(mld_s_onelev_node), pointer :: head, tail, newnode, current
real(psb_spk_) :: sizeratio
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_mlhier_aggsize'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
!
! New strategy to build according to coarse size.
!
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if ((info == psb_success_).and.allocated(precv(1)%sm2a)) &
& allocate(base_sm2, source=precv(1)%sm2a,stat=info)
if ((info == psb_success_).and.allocated(precv(2)%sm2a)) &
& allocate(med_sm2, source=precv(2)%sm2a,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
! Replicated matrix should only ever happen at coarse level.
!
call mld_check_def(baseparms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
!
! Now build a doubly linked list
!
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
head => newnode
tail => newnode
newnode%item%base_a => a
newnode%item%base_desc => desc_a
newnode%item%parms = baseparms
newsz = 1
current => head
list_build_loop: do
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
current%next => newnode
newnode%prev => current
newsz = newsz + 1
newnode%item%parms = medparms
newnode%item%parms%aggr_thresh = &
& (current%item%parms%aggr_thresh)*(current%item%parms%aggr_scale)
call mld_coarse_bld(current%item%base_a, current%item%base_desc, &
& newnode%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
current => current%next
tail => current
iaggsize = sum(current%item%map%naggr)
if (iaggsize <= casize) then
!
! Target reached; but we may need to rebuild.
!
exit list_build_loop
end if
if (newsz>2) then
sizeratio = iaggsize
sizeratio = sum(current%prev%item%map%naggr)/sizeratio
if (sizeratio < mnaggratio) then
if (sizeratio > 1) exit list_build_loop
!
! We are not gaining
!
newsz = newsz-1
current => current%prev
current%next =>null()
call newnode%item%free(info)
if (info == psb_success_) deallocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Deallocate at list end'); goto 9999
end if
exit list_build_loop
end if
end if
end do list_build_loop
!
! At this point, we are at the list tail.
! If the top aggregation parameters were different, then we need to rebuild;
! the threshold has to be fixed before rebuliding, and the parms must be
! copied anyway since they'll be used later for the smoother build.
!
coarseparms%aggr_thresh = current%item%parms%aggr_thresh
if (.not.mld_equal_aggregation(current%item%parms, coarseparms)) then
! Need to rebuild.
current%item%parms = coarseparms
call mld_coarse_bld(current%prev%item%base_a,&
& current%prev%item%base_desc, &
& current%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
else
! Need only copy the parms.
current%item%parms = coarseparms
end if
!
! Ok, now allocate the output vector and fix items.
!
do i=1,iszv
if (info == psb_success_) call precv(i)%free(info)
end do
if (info == psb_success_) deallocate(precv,stat=info)
if (info == psb_success_) allocate(precv(newsz),stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Reallocate precv'); goto 9999
end if
newnode => head
do i=1, newsz
current => newnode
! First do a move_alloc.
! This handles the AC, DESC_AC and MAP fields
if (info == psb_success_) &
& call current%item%move_alloc(precv(i),info)
! Now set the smoother/solver parts.
if (info == psb_success_) then
if (i ==1) then
allocate(precv(i)%sm,source=base_sm,stat=info)
if (allocated(base_sm2)) then
allocate(precv(i)%sm2a,source=base_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else if (i < newsz) then
allocate(precv(i)%sm,source=med_sm,stat=info)
if (allocated(med_sm2)) then
allocate(precv(i)%sm2a,source=med_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else
allocate(precv(i)%sm,source=coarse_sm,stat=info)
end if
end if
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='list cpy'); goto 9999
end if
if (i == 1) then
precv(i)%base_a => a
precv(i)%base_desc => desc_a
else
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end if
newnode => current%next
deallocate(current)
end do
call base_sm%free(info)
if (info == psb_success_) call med_sm%free(info)
if (info == psb_success_) call coarse_sm%free(info)
if ((info == psb_success_).and.(allocated(base_sm2))) call base_sm2%free(info)
if ((info == psb_success_).and.(allocated(med_sm2))) call med_sm2%free(info)
if (info == psb_success_) deallocate(coarse_sm,med_sm,base_sm,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='final cleanup'); goto 9999
end if
iszv = newsz
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_s_bld_mlhier_aggsize

246
mlprec/impl/mld_s_bld_mlhier_array.f90
Unescape Escape View File

@ -1,246 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
subroutine mld_s_bld_mlhier_array(nplevs,a,desc_a,precv,info)
use psb_base_mod
use mld_s_inner_mod, mld_protect_name => mld_s_bld_mlhier_array
use mld_s_prec_mod
implicit none
integer(psb_ipk_), intent(inout) :: nplevs
type(psb_sspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_s_onelev_type),intent(inout), allocatable, target :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, newsz, iszv
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
class(mld_s_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm
type(mld_sml_parms) :: baseparms, medparms, coarseparms
type(mld_s_onelev_type), allocatable :: tprecv(:)
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_array_hierarchy'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
!
! Build the matrix and the transfer operators corresponding
! to the remaining levels
!
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(1)%parms)
iszv = size(precv)
!
! First set desired number of levels
!
if (iszv /= nplevs) then
allocate(tprecv(nplevs),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
tprecv(1)%parms = baseparms
allocate(tprecv(1)%sm,source=base_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=2,nplevs-1
tprecv(i)%parms = medparms
allocate(tprecv(i)%sm,source=med_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
end do
tprecv(nplevs)%parms = coarseparms
allocate(tprecv(nplevs)%sm,source=coarse_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
iszv = size(precv)
end if
!
! Finest level first; remember to fix base_a and base_desc
!
precv(1)%base_a => a
precv(1)%base_desc => desc_a
newsz = 0
array_build_loop: do i=2, iszv
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(i)%parms)
!
! Sanity checks on the parameters
!
if (i<iszv) then
!
! A replicated matrix only makes sense at the coarsest level
!
call mld_check_def(precv(i)%parms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Calling mlprcbld at level ',i
!
! Build the mapping between levels i-1 and i and the matrix
! at level i
!
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Init upper level preconditioner')
goto 9999
endif
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Return from ',i,' call to mlprcbld ',info
if (i>2) then
if (all(precv(i)%map%naggr == precv(i-1)%map%naggr)) then
newsz=i-1
end if
call psb_bcast(ictxt,newsz)
if (newsz > 0) exit array_build_loop
end if
end do array_build_loop
if (newsz > 0) then
if (me == 0) then
write(debug_unit,*) trim(name),&
&': Warning: aggregates from level ',&
& newsz
write(debug_unit,*) trim(name),&
&': to level ',&
& iszv,' coincide.'
write(debug_unit,*) trim(name),&
&': Number of levels actually used :',newsz
write(debug_unit,*)
end if
allocate(tprecv(newsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,newsz-1
call precv(i)%move_alloc(tprecv(i),info)
end do
call precv(iszv)%move_alloc(tprecv(newsz),info)
do i=newsz+1, iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
! Ignore errors from transfer
info = psb_success_
!
! Restart
iszv = newsz
! Fix the pointers, but the level 1 should
! be already OK
do i=2, iszv - 1
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end do
i = iszv
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='coarse rebuild')
goto 9999
endif
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_s_bld_mlhier_array

19
mlprec/impl/mld_s_hierarchy_bld.f90
Unescape Escape View File

@ -63,18 +63,7 @@
! info - integer, output.
! Error code.
!
! amold - class(psb_s_base_sparse_mat), input, optional
! Mold for the inner format of matrices contained in the
! preconditioner
!
!
! vmold - class(psb_s_base_vect_type), input, optional
! Mold for the inner format of vectors contained in the
! preconditioner
!
!
!
subroutine mld_s_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
subroutine mld_s_hierarchy_bld(a,desc_a,p,info)
use psb_base_mod
use mld_s_inner_mod
@ -87,9 +76,6 @@ subroutine mld_s_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_sprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
!!$ character, intent(in), optional :: upd
! Local Variables
@ -206,11 +192,10 @@ subroutine mld_s_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
! 4. If the size of the array is different from target number of levels,
! reallocate;
! 5. Build the matrix hierarchy, stopping early if either the target
! coarse size is hit, or the gain fall below the mmin_aggr_ratio
! coarse size is hit, or the gain falls below the min_aggr_ratio
! threshold.
!
if (nplevs <= 0) then
if (casize <=0) then
!

2
mlprec/impl/mld_smlprec_bld.f90
Unescape Escape View File

@ -119,7 +119,7 @@ subroutine mld_smlprec_bld(a,desc_a,p,info,amold,vmold,imold)
& write(debug_unit,*) me,' ',trim(name),&
& 'Entering '
call mld_s_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
call mld_s_hierarchy_bld(a,desc_a,p,info)
if (info /= psb_success_) then
info=psb_err_internal_error_

268
mlprec/impl/mld_z_bld_mlhier_aggsize.f90
Unescape Escape View File

@ -1,268 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
!
! Build an aggregation hierarchy with a target aggregation size
!
!
subroutine mld_z_bld_mlhier_aggsize(casize,mxplevs,mnaggratio,a,desc_a,precv,info)
use psb_base_mod
use mld_z_inner_mod, mld_protect_name => mld_z_bld_mlhier_aggsize
use mld_z_prec_mod
implicit none
integer(psb_ipk_), intent(in) :: casize,mxplevs
real(psb_dpk_) :: mnaggratio
type(psb_zspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_z_onelev_type), allocatable, target, intent(inout) :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, iaggsize
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
integer(psb_ipk_) :: int_err(5)
character :: upd_
class(mld_z_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm, base_sm2, med_sm2
type(mld_dml_parms) :: baseparms, medparms, coarseparms
type(mld_z_onelev_node), pointer :: head, tail, newnode, current
real(psb_dpk_) :: sizeratio
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_mlhier_aggsize'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
!
! New strategy to build according to coarse size.
!
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if ((info == psb_success_).and.allocated(precv(1)%sm2a)) &
& allocate(base_sm2, source=precv(1)%sm2a,stat=info)
if ((info == psb_success_).and.allocated(precv(2)%sm2a)) &
& allocate(med_sm2, source=precv(2)%sm2a,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
! Replicated matrix should only ever happen at coarse level.
!
call mld_check_def(baseparms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
!
! Now build a doubly linked list
!
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
head => newnode
tail => newnode
newnode%item%base_a => a
newnode%item%base_desc => desc_a
newnode%item%parms = baseparms
newsz = 1
current => head
list_build_loop: do
allocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='List start'); goto 9999
end if
current%next => newnode
newnode%prev => current
newsz = newsz + 1
newnode%item%parms = medparms
newnode%item%parms%aggr_thresh = &
& (current%item%parms%aggr_thresh)*(current%item%parms%aggr_scale)
call mld_coarse_bld(current%item%base_a, current%item%base_desc, &
& newnode%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
current => current%next
tail => current
iaggsize = sum(current%item%map%naggr)
if (iaggsize <= casize) then
!
! Target reached; but we may need to rebuild.
!
exit list_build_loop
end if
if (newsz>2) then
sizeratio = iaggsize
sizeratio = sum(current%prev%item%map%naggr)/sizeratio
if (sizeratio < mnaggratio) then
if (sizeratio > 1) exit list_build_loop
!
! We are not gaining
!
newsz = newsz-1
current => current%prev
current%next =>null()
call newnode%item%free(info)
if (info == psb_success_) deallocate(newnode,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Deallocate at list end'); goto 9999
end if
exit list_build_loop
end if
end if
end do list_build_loop
!
! At this point, we are at the list tail.
! If the top aggregation parameters were different, then we need to rebuild;
! the threshold has to be fixed before rebuliding, and the parms must be
! copied anyway since they'll be used later for the smoother build.
!
coarseparms%aggr_thresh = current%item%parms%aggr_thresh
if (.not.mld_equal_aggregation(current%item%parms, coarseparms)) then
! Need to rebuild.
current%item%parms = coarseparms
call mld_coarse_bld(current%prev%item%base_a,&
& current%prev%item%base_desc, &
& current%item,info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='build next level'); goto 9999
end if
else
! Need only copy the parms.
current%item%parms = coarseparms
end if
!
! Ok, now allocate the output vector and fix items.
!
do i=1,iszv
if (info == psb_success_) call precv(i)%free(info)
end do
if (info == psb_success_) deallocate(precv,stat=info)
if (info == psb_success_) allocate(precv(newsz),stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Reallocate precv'); goto 9999
end if
newnode => head
do i=1, newsz
current => newnode
! First do a move_alloc.
! This handles the AC, DESC_AC and MAP fields
if (info == psb_success_) &
& call current%item%move_alloc(precv(i),info)
! Now set the smoother/solver parts.
if (info == psb_success_) then
if (i ==1) then
allocate(precv(i)%sm,source=base_sm,stat=info)
if (allocated(base_sm2)) then
allocate(precv(i)%sm2a,source=base_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else if (i < newsz) then
allocate(precv(i)%sm,source=med_sm,stat=info)
if (allocated(med_sm2)) then
allocate(precv(i)%sm2a,source=med_sm2,stat=info)
precv(i)%sm2 => precv(i)%sm2a
else
precv(i)%sm2 => precv(i)%sm
end if
else
allocate(precv(i)%sm,source=coarse_sm,stat=info)
end if
end if
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='list cpy'); goto 9999
end if
if (i == 1) then
precv(i)%base_a => a
precv(i)%base_desc => desc_a
else
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end if
newnode => current%next
deallocate(current)
end do
call base_sm%free(info)
if (info == psb_success_) call med_sm%free(info)
if (info == psb_success_) call coarse_sm%free(info)
if ((info == psb_success_).and.(allocated(base_sm2))) call base_sm2%free(info)
if ((info == psb_success_).and.(allocated(med_sm2))) call med_sm2%free(info)
if (info == psb_success_) deallocate(coarse_sm,med_sm,base_sm,stat=info)
if (info /= psb_success_) then
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='final cleanup'); goto 9999
end if
iszv = newsz
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_z_bld_mlhier_aggsize

246
mlprec/impl/mld_z_bld_mlhier_array.f90
Unescape Escape View File

@ -1,246 +0,0 @@
!!$
!!$
!!$ 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.
!!$
!!$
subroutine mld_z_bld_mlhier_array(nplevs,a,desc_a,precv,info)
use psb_base_mod
use mld_z_inner_mod, mld_protect_name => mld_z_bld_mlhier_array
use mld_z_prec_mod
implicit none
integer(psb_ipk_), intent(inout) :: nplevs
type(psb_zspmat_type),intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_z_onelev_type),intent(inout), allocatable, target :: precv(:)
integer(psb_ipk_), intent(out) :: info
! Local
integer(psb_ipk_) :: ictxt, me,np
integer(psb_ipk_) :: err,i,k, err_act, newsz, iszv
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
class(mld_z_base_smoother_type), allocatable :: coarse_sm, base_sm, med_sm
type(mld_dml_parms) :: baseparms, medparms, coarseparms
type(mld_z_onelev_type), allocatable :: tprecv(:)
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_bld_array_hierarchy'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_ctxt()
call psb_info(ictxt,me,np)
iszv = size(precv)
coarseparms = precv(iszv)%parms
baseparms = precv(1)%parms
medparms = precv(2)%parms
allocate(coarse_sm, source=precv(iszv)%sm,stat=info)
if (info == psb_success_) &
& allocate(med_sm, source=precv(2)%sm,stat=info)
if (info == psb_success_) &
& allocate(base_sm, source=precv(1)%sm,stat=info)
if (info /= psb_success_) then
write(0,*) 'Error in saving smoothers',info
call psb_errpush(psb_err_internal_error_,name,a_err='Base level precbuild.')
goto 9999
end if
!
!
! Build the matrix and the transfer operators corresponding
! to the remaining levels
!
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(1)%parms)
iszv = size(precv)
!
! First set desired number of levels
!
if (iszv /= nplevs) then
allocate(tprecv(nplevs),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
tprecv(1)%parms = baseparms
allocate(tprecv(1)%sm,source=base_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=2,nplevs-1
tprecv(i)%parms = medparms
allocate(tprecv(i)%sm,source=med_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
end do
tprecv(nplevs)%parms = coarseparms
allocate(tprecv(nplevs)%sm,source=coarse_sm,stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
iszv = size(precv)
end if
!
! Finest level first; remember to fix base_a and base_desc
!
precv(1)%base_a => a
precv(1)%base_desc => desc_a
newsz = 0
array_build_loop: do i=2, iszv
!
! Check on the iprcparm contents: they should be the same
! on all processes.
!
call psb_bcast(ictxt,precv(i)%parms)
!
! Sanity checks on the parameters
!
if (i<iszv) then
!
! A replicated matrix only makes sense at the coarsest level
!
call mld_check_def(precv(i)%parms%coarse_mat,'Coarse matrix',&
& mld_distr_mat_,is_distr_ml_coarse_mat)
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Calling mlprcbld at level ',i
!
! Build the mapping between levels i-1 and i and the matrix
! at level i
!
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Init upper level preconditioner')
goto 9999
endif
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Return from ',i,' call to mlprcbld ',info
if (i>2) then
if (all(precv(i)%map%naggr == precv(i-1)%map%naggr)) then
newsz=i-1
end if
call psb_bcast(ictxt,newsz)
if (newsz > 0) exit array_build_loop
end if
end do array_build_loop
if (newsz > 0) then
if (me == 0) then
write(debug_unit,*) trim(name),&
&': Warning: aggregates from level ',&
& newsz
write(debug_unit,*) trim(name),&
&': to level ',&
& iszv,' coincide.'
write(debug_unit,*) trim(name),&
&': Number of levels actually used :',newsz
write(debug_unit,*)
end if
allocate(tprecv(newsz),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='prec reallocation')
goto 9999
endif
do i=1,newsz-1
call precv(i)%move_alloc(tprecv(i),info)
end do
call precv(iszv)%move_alloc(tprecv(newsz),info)
do i=newsz+1, iszv
call precv(i)%free(info)
end do
call move_alloc(tprecv,precv)
! Ignore errors from transfer
info = psb_success_
!
! Restart
iszv = newsz
! Fix the pointers, but the level 1 should
! be already OK
do i=2, iszv - 1
precv(i)%base_a => precv(i)%ac
precv(i)%base_desc => precv(i)%desc_ac
precv(i)%map%p_desc_X => precv(i-1)%base_desc
precv(i)%map%p_desc_Y => precv(i)%base_desc
end do
i = iszv
if (info == psb_success_) call mld_coarse_bld(precv(i-1)%base_a,&
& precv(i-1)%base_desc, precv(i),info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='coarse rebuild')
goto 9999
endif
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_z_bld_mlhier_array

19
mlprec/impl/mld_z_hierarchy_bld.f90
Unescape Escape View File

@ -63,18 +63,7 @@
! info - integer, output.
! Error code.
!
! amold - class(psb_z_base_sparse_mat), input, optional
! Mold for the inner format of matrices contained in the
! preconditioner
!
!
! vmold - class(psb_z_base_vect_type), input, optional
! Mold for the inner format of vectors contained in the
! preconditioner
!
!
!
subroutine mld_z_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
subroutine mld_z_hierarchy_bld(a,desc_a,p,info)
use psb_base_mod
use mld_z_inner_mod
@ -87,9 +76,6 @@ subroutine mld_z_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_zprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
class(psb_z_base_sparse_mat), intent(in), optional :: amold
class(psb_z_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
!!$ character, intent(in), optional :: upd
! Local Variables
@ -206,11 +192,10 @@ subroutine mld_z_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
! 4. If the size of the array is different from target number of levels,
! reallocate;
! 5. Build the matrix hierarchy, stopping early if either the target
! coarse size is hit, or the gain fall below the mmin_aggr_ratio
! coarse size is hit, or the gain falls below the min_aggr_ratio
! threshold.
!
if (nplevs <= 0) then
if (casize <=0) then
!

2
mlprec/impl/mld_zmlprec_bld.f90
Unescape Escape View File

@ -119,7 +119,7 @@ subroutine mld_zmlprec_bld(a,desc_a,p,info,amold,vmold,imold)
& write(debug_unit,*) me,' ',trim(name),&
& 'Entering '
call mld_z_hierarchy_bld(a,desc_a,p,info,amold,vmold,imold)
call mld_z_hierarchy_bld(a,desc_a,p,info)
if (info /= psb_success_) then
info=psb_err_internal_error_

8
mlprec/mld_c_prec_mod.f90
Unescape Escape View File

@ -88,18 +88,14 @@ module mld_c_prec_mod
end interface mld_precbld
interface mld_hierarchy_bld
subroutine mld_c_hierarchy_bld(a,desc_a,prec,info,amold,vmold,imold)
subroutine mld_c_hierarchy_bld(a,desc_a,prec,info)
import :: psb_cspmat_type, psb_desc_type, psb_spk_, &
& psb_c_base_sparse_mat, psb_c_base_vect_type, &
& psb_i_base_vect_type, mld_cprec_type, psb_ipk_
& mld_cprec_type, psb_ipk_
implicit none
type(psb_cspmat_type), intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_cprec_type), intent(inout), target :: prec
integer(psb_ipk_), intent(out) :: info
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
! character, intent(in),optional :: upd
end subroutine mld_c_hierarchy_bld
end interface mld_hierarchy_bld

8
mlprec/mld_d_prec_mod.f90
Unescape Escape View File

@ -88,18 +88,14 @@ module mld_d_prec_mod
end interface mld_precbld
interface mld_hierarchy_bld
subroutine mld_d_hierarchy_bld(a,desc_a,prec,info,amold,vmold,imold)
subroutine mld_d_hierarchy_bld(a,desc_a,prec,info)
import :: psb_dspmat_type, psb_desc_type, psb_dpk_, &
& psb_d_base_sparse_mat, psb_d_base_vect_type, &
& psb_i_base_vect_type, mld_dprec_type, psb_ipk_
& mld_dprec_type, psb_ipk_
implicit none
type(psb_dspmat_type), intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_dprec_type), intent(inout), target :: prec
integer(psb_ipk_), intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
! character, intent(in),optional :: upd
end subroutine mld_d_hierarchy_bld
end interface mld_hierarchy_bld

8
mlprec/mld_s_prec_mod.f90
Unescape Escape View File

@ -88,18 +88,14 @@ module mld_s_prec_mod
end interface mld_precbld
interface mld_hierarchy_bld
subroutine mld_s_hierarchy_bld(a,desc_a,prec,info,amold,vmold,imold)
subroutine mld_s_hierarchy_bld(a,desc_a,prec,info)
import :: psb_sspmat_type, psb_desc_type, psb_spk_, &
& psb_s_base_sparse_mat, psb_s_base_vect_type, &
& psb_i_base_vect_type, mld_sprec_type, psb_ipk_
& mld_sprec_type, psb_ipk_
implicit none
type(psb_sspmat_type), intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_sprec_type), intent(inout), target :: prec
integer(psb_ipk_), intent(out) :: info
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
! character, intent(in),optional :: upd
end subroutine mld_s_hierarchy_bld
end interface mld_hierarchy_bld

8
mlprec/mld_z_prec_mod.f90
Unescape Escape View File

@ -88,18 +88,14 @@ module mld_z_prec_mod
end interface mld_precbld
interface mld_hierarchy_bld
subroutine mld_z_hierarchy_bld(a,desc_a,prec,info,amold,vmold,imold)
subroutine mld_z_hierarchy_bld(a,desc_a,prec,info)
import :: psb_zspmat_type, psb_desc_type, psb_dpk_, &
& psb_z_base_sparse_mat, psb_z_base_vect_type, &
& psb_i_base_vect_type, mld_zprec_type, psb_ipk_
& mld_zprec_type, psb_ipk_
implicit none
type(psb_zspmat_type), intent(in), target :: a
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_zprec_type), intent(inout), target :: prec
integer(psb_ipk_), intent(out) :: info
class(psb_z_base_sparse_mat), intent(in), optional :: amold
class(psb_z_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
! character, intent(in),optional :: upd
end subroutine mld_z_hierarchy_bld
end interface mld_hierarchy_bld

Write Preview
Loading…
Cancel
Save