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mlprec/Makefile

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mlprec/mld_daggrmat_asb.f90
 mlprec/mld_daggrmat_minnrg_asb.F90
 mlprec/mld_dmlprec_aply.f90
 mlprec/mld_dprecinit.F90
 mlprec/mld_dprecset.f90
 mlprec/mld_inner_mod.f90
 mlprec/mld_prec_type.f90

mld2p4: 
 First attempt at implementing MIN ENERGY smoother. Only for double
 real so far.
This commit is contained in:
Salvatore Filippone
2009-06-24 11:13:52 +00:00
parent 898f363a82
commit e8b8c53ffe
8 changed files with 1453 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mlprec/Makefile
+1 -1
View File
@@ -8,7 +8,7 @@ FINCLUDES=$(FMFLAG). $(FMFLAG)$(LIBDIR) $(FMFLAG)$(PSBLIBDIR)
MODOBJS=mld_prec_type.o mld_prec_mod.o mld_inner_mod.o mld_move_alloc_mod.o
MPFOBJS=mld_saggrmat_nosmth_asb.o mld_saggrmat_smth_asb.o \
mld_daggrmat_nosmth_asb.o mld_daggrmat_smth_asb.o \
mld_daggrmat_nosmth_asb.o mld_daggrmat_smth_asb.o mld_daggrmat_minnrg_asb.o\
mld_caggrmat_nosmth_asb.o mld_caggrmat_smth_asb.o \
mld_zaggrmat_nosmth_asb.o mld_zaggrmat_smth_asb.o
MPCOBJS=mld_sslud_interface.o mld_dslud_interface.o mld_cslud_interface.o mld_zslud_interface.o
mlprec/mld_daggrmat_asb.f90
+8
View File
@@ -143,6 +143,14 @@ subroutine mld_daggrmat_asb(a,desc_a,ilaggr,nlaggr,p,info)
goto 9999
end if
case(mld_min_energy_)
call mld_aggrmat_minnrg_asb(a,desc_a,ilaggr,nlaggr,p,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='mld_aggrmat_smth_asb')
goto 9999
end if
case default
call psb_errpush(4001,name,a_err='Invalid aggr kind')
mlprec/mld_daggrmat_minnrg_asb.F90
+854
View File
@@ -0,0 +1,854 @@
!!$
!!$
!!$ MLD2P4 version 1.1
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 2.3.1)
!!$
!!$ (C) Copyright 2008,2009
!!$
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$ Pasqua D'Ambra ICAR-CNR, Naples
!!$ Daniela di Serafino Second University of Naples
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the MLD2P4 group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
! File: mld_daggrmat_minnrg_asb.F90
!
! Subroutine: mld_daggrmat_minnrg_asb
! Version: real
!
! This routine builds a coarse-level matrix A_C from a fine-level matrix A
! by using the Galerkin approach, i.e.
!
! A_C = P_C^T A P_C,
!
! where P_C is a prolongator from the coarse level to the fine one.
!
! The prolongator P_C is built according to a smoothed aggregation algorithm,
! i.e. it is obtained by applying a damped Jacobi smoother to the piecewise
! constant interpolation operator P corresponding to the fine-to-coarse level
! mapping built by the mld_aggrmap_bld subroutine:
!
! P_C = (I - omega*D^(-1)A) * P,
!
! where D is the diagonal matrix with main diagonal equal to the main diagonal
! of A, and omega is a suitable smoothing parameter. An estimate of the spectral
! radius of D^(-1)A, to be used in the computation of omega, is provided,
! according to the value of p%iprcparm(mld_aggr_omega_alg_), specified by the user
! through mld_dprecinit and mld_dprecset.
!
! This routine can also build A_C according to a "bizarre" aggregation algorithm,
! using a "naive" prolongator proposed by the authors of MLD2P4. However, this
! prolongator still requires a deep analysis and testing and its use is not
! recommended.
!
! The coarse-level matrix A_C is distributed among the parallel processes or
! replicated on each of them, according to the value of p%iprcparm(mld_coarse_mat_),
! specified by the user through mld_dprecinit and mld_dprecset.
!
! For more details see
! M. Brezina and P. Vanek, A black-box iterative solver based on a
! two-level Schwarz method, Computing, 63 (1999), 233-263.
! P. D'Ambra, D. di Serafino and S. Filippone, On the development of
! PSBLAS-based parallel two-level Schwarz preconditioners, Appl. Num. Math.
! 57 (2007), 1181-1196.
!
! Arguments:
! a - type(psb_dspmat_type), input.
! The sparse matrix structure containing the local part of
! the fine-level matrix.
! desc_a - type(psb_desc_type), input.
! The communication descriptor of the fine-level matrix.
! p - type(mld_donelev_type), input/output.
! The 'one-level' data structure that will contain the local
! part of the matrix to be built as well as the information
! concerning the prolongator and its transpose.
! ilaggr - integer, dimension(:), allocatable.
! The mapping between the row indices of the coarse-level
! matrix and the row indices of the fine-level matrix.
! ilaggr(i)=j means that node i in the adjacency graph
! of the fine-level matrix is mapped onto node j in the
! adjacency graph of the coarse-level matrix.
! nlaggr - integer, dimension(:), allocatable.
! nlaggr(i) contains the aggregates held by process i.
! info - integer, output.
! Error code.
!
subroutine mld_daggrmat_minnrg_asb(a,desc_a,ilaggr,nlaggr,p,info)
use psb_base_mod
use mld_inner_mod, mld_protect_name => mld_daggrmat_minnrg_asb
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
! Arguments
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent(in) :: desc_a
integer, intent(inout) :: ilaggr(:), nlaggr(:)
type(mld_donelev_type), intent(inout), target :: p
integer, intent(out) :: info
! Local variables
type(psb_dspmat_type) :: b
integer, allocatable :: nzbr(:), idisp(:)
integer :: nrow, nglob, ncol, ntaggr, nzac, ip, ndx,&
& naggr, nzl,naggrm1,naggrp1, i, j, k, jd, icolF, nrt
integer ::ictxt,np,me, err_act, icomm
character(len=20) :: name
type(psb_dspmat_type) :: am1,am2, af, ptilde, rtilde
type(psb_dspmat_type) :: am3,am4, ap, adap,atmp,rada, ra, atmp2
real(psb_dpk_), allocatable :: adiag(:), pj(:), xj(:), yj(:), omf(:),omp(:),omi(:),&
& oden(:), adinv(:)
logical :: ml_global_nmb, filter_mat
integer :: debug_level, debug_unit
integer, parameter :: ncmax=16
real(psb_dpk_) :: omega, anorm, tmp, dg, theta, alpha,beta, ommx
name='mld_aggrmat_minnrg_asb'
if(psb_get_errstatus().ne.0) return
info=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = psb_cd_get_context(desc_a)
icomm = psb_cd_get_mpic(desc_a)
ictxt = psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
call psb_nullify_sp(b)
call psb_nullify_sp(am3)
call psb_nullify_sp(am4)
call psb_nullify_sp(am1)
call psb_nullify_sp(am2)
call psb_nullify_sp(Ap)
call psb_nullify_sp(Adap)
call psb_nullify_sp(Atmp)
call psb_nullify_sp(Atmp2)
call psb_nullify_sp(AF)
call psb_nullify_sp(ra)
call psb_nullify_sp(rada)
call psb_nullify_sp(ptilde)
call psb_nullify_sp(rtilde)
nglob = psb_cd_get_global_rows(desc_a)
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
theta = p%rprcparm(mld_aggr_thresh_)
naggr = nlaggr(me+1)
ntaggr = sum(nlaggr)
allocate(nzbr(np), idisp(np),stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*np,0,0,0,0/),&
& a_err='integer')
goto 9999
end if
naggrm1 = sum(nlaggr(1:me))
naggrp1 = sum(nlaggr(1:me+1))
ml_global_nmb = .true.
filter_mat = (p%iprcparm(mld_aggr_filter_) == mld_filter_mat_)
if (ml_global_nmb) then
ilaggr(1:nrow) = ilaggr(1:nrow) + naggrm1
call psb_halo(ilaggr,desc_a,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_halo')
goto 9999
end if
end if
! naggr: number of local aggregates
! nrow: local rows.
!
allocate(adiag(ncol),adinv(ncol),xj(ncol),&
& yj(ncol),omf(ncol),omp(ntaggr),oden(ntaggr),omi(ncol),stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/6*ncol+ntaggr,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
! Get the diagonal D
call psb_sp_getdiag(a,adiag,info)
if (info == 0) &
& call psb_halo(adiag,desc_a,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='sp_getdiag')
goto 9999
end if
! 1. Allocate Ptilde in sparse matrix form
ptilde%fida='COO'
ptilde%m=ncol
if (ml_global_nmb) then
ptilde%k=ntaggr
call psb_sp_all(ncol,ntaggr,ptilde,ncol,info)
else
ptilde%k=naggr
call psb_sp_all(ncol,naggr,ptilde,ncol,info)
endif
if (info /= 0) then
call psb_errpush(4010,name,a_err='spall')
goto 9999
end if
if (ml_global_nmb) then
do i=1,ncol
ptilde%aspk(i) = done
ptilde%ia1(i) = i
ptilde%ia2(i) = ilaggr(i)
end do
ptilde%infoa(psb_nnz_) = ncol
else
do i=1,nrow
ptilde%aspk(i) = done
ptilde%ia1(i) = i
ptilde%ia2(i) = ilaggr(i)
end do
ptilde%infoa(psb_nnz_) = nrow
endif
call psb_spcnv(ptilde,info,afmt='csr',dupl=psb_dupl_add_)
if (info==0) call psb_spcnv(a,am3,info,afmt='csr',dupl=psb_dupl_add_)
if (info /= 0) then
call psb_errpush(4010,name,a_err='spcnv')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& ' Initial copies done.'
call psb_symbmm(am3,ptilde,ap,info)
if (info == 0) call psb_numbmm(am3,ptilde,ap)
if(info /= 0) then
call psb_errpush(4010,name,a_err='symbmm 1')
goto 9999
end if
call psb_sp_clone(ap,atmp,info)
do i=1,size(adiag)
if (adiag(i) /= dzero) then
adinv(i) = done / adiag(i)
else
adinv(i) = done
end if
end do
call psb_sp_scal(adinv,atmp,info)
call psb_sphalo(atmp,desc_a,am4,info,&
& colcnv=.false.,rowscale=.true.,outfmt='CSR ')
if (info == 0) call psb_rwextd(ncol,atmp,info,b=am4)
if (info == 0) call psb_sp_free(am4,info)
call psb_symbmm(am3,atmp,adap,info)
call psb_numbmm(am3,atmp,adap)
call psb_sp_free(atmp,info)
!!$ write(0,*) 'Columns of AP',psb_sp_get_ncols(ap)
!!$ write(0,*) 'Columns of ADAP',psb_sp_get_ncols(adap)
call psb_spcnv(ap,info,afmt='coo')
if (info == 0) call psb_spcnv(ap,info,afmt='csc')
if (info == 0) call psb_spcnv(adap,info,afmt='coo')
if (info == 0) call psb_spcnv(adap,info,afmt='csc')
if (info /= 0) then
write(0,*) 'Failed conversion to CSC'
end if
call csc_mat_col_prod(ap,adap,omp,info)
call csc_mat_col_prod(adap,adap,oden,info)
call psb_sum(ictxt,omp)
call psb_sum(ictxt,oden)
omp = omp/oden
!!$ write(0,*) 'Check on output prolongator ',omp(1:min(size(omp),10))
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done NUMBMM 1'
! Compute omega_int
ommx = -1d300
do i=1, ncol
omi(i) = omp(ilaggr(i))
ommx = max(ommx,omi(i))
end do
! Compute omega_fine
do i=1, nrow
omf(i) = ommx
do j=am3%ia2(i),am3%ia2(i+1)-1
omf(i) = min(omf(i),omi(am3%ia1(j)))
end do
omf(i) = max(dzero,omf(i))
end do
if (filter_mat) then
!
! Build the filtered matrix Af from A
!
call psb_spcnv(a,af,info,afmt='csr',dupl=psb_dupl_add_)
do i=1,nrow
tmp = dzero
jd = -1
do j=af%ia2(i),af%ia2(i+1)-1
if (af%ia1(j) == i) jd = j
if (abs(af%aspk(j)) < theta*sqrt(abs(adiag(i)*adiag(af%ia1(j))))) then
tmp=tmp+af%aspk(j)
af%aspk(j)=dzero
endif
enddo
if (jd == -1) then
write(0,*) 'Wrong input: we need the diagonal!!!!', i
else
af%aspk(jd)=af%aspk(jd)-tmp
end if
enddo
! Take out zeroed terms
call psb_spcnv(af,info,afmt='coo')
k = 0
do j=1,psb_sp_get_nnzeros(af)
if ((af%aspk(j) /= dzero) .or. (af%ia1(j)==af%ia2(j))) then
k = k + 1
af%aspk(k) = af%aspk(j)
af%ia1(k) = af%ia1(j)
af%ia2(k) = af%ia2(j)
end if
end do
!!$ write(debug_unit,*) me,' ',trim(name),' Non zeros from filtered matrix:',k,af%m,af%k
call psb_sp_setifld(k,psb_nnz_,af,info)
call psb_spcnv(af,info,afmt='csr')
end if
omf(1:nrow) = omf(1:nrow) * adinv(1:nrow)
!!$ if (filter_mat) call psb_sp_scal(adinv,af,info)
!!$
!!$ call psb_sp_scal(adinv,am3,info)
!!$ if (info /= 0) goto 9999
if (filter_mat) then
!
! Build the smoothed prolongator using the filtered matrix
!
if (psb_toupper(af%fida)=='CSR') then
do i=1,af%m
do j=af%ia2(i),af%ia2(i+1)-1
if (af%ia1(j) == i) then
af%aspk(j) = done - omf(i)*af%aspk(j)
else
af%aspk(j) = - omf(i)*af%aspk(j)
end if
end do
end do
else
call psb_errpush(4001,name,a_err='Invalid AF storage format')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done gather, going for SYMBMM 1'
!
! Symbmm90 does the allocation for its result.
!
! am1 = (I-w*D*Af)Ptilde
! Doing it this way means to consider diag(Af_i)
!
!
call psb_symbmm(af,ptilde,am1,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='symbmm 1')
goto 9999
end if
call psb_numbmm(af,ptilde,am1)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done NUMBMM 1'
else
!
! Build the smoothed prolongator using the original matrix
!
if (psb_toupper(am3%fida)=='CSR') then
do i=1,am3%m
do j=am3%ia2(i),am3%ia2(i+1)-1
if (am3%ia1(j) == i) then
am3%aspk(j) = done - omf(i)*am3%aspk(j)
else
am3%aspk(j) = - omf(i)*am3%aspk(j)
end if
end do
end do
else
call psb_errpush(4001,name,a_err='Invalid AM3 storage format')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done gather, going for SYMBMM 1'
!
! Symbmm90 does the allocation for its result.
!
! am1 = (I-w*D*A)Ptilde
!
!
call psb_symbmm(am3,ptilde,am1,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='symbmm 1')
goto 9999
end if
call psb_numbmm(am3,ptilde,am1)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done NUMBMM 1'
end if
!
! Ok, let's start over with the restrictor
!
call psb_transp(ptilde,rtilde,fmt='CSR')
call psb_spcnv(a,atmp,info,afmt='CSR')
call psb_sphalo(atmp,desc_a,am4,info,&
& colcnv=.true.,rowscale=.true.)
nrt = psb_sp_get_nrows(am4)
call psb_sp_clip(am4,atmp2,info,1,nrt,1,ncol)
call psb_spcnv(atmp2,info,afmt='CSR')
if (info == 0) call psb_rwextd(ncol,atmp,info,b=atmp2)
if (info == 0) call psb_sp_free(am4,info)
if (info == 0) call psb_sp_free(atmp2,info)
call psb_symbmm(rtilde,atmp,ra,info)
if (info == 0) call psb_numbmm(rtilde,atmp,ra)
if (info /= 0) then
write(0,*) 'From symbmm :',info
goto 9999
end if
call psb_sp_scal(adinv,atmp,info)
call psb_symbmm(ra,atmp,rada,info)
call psb_numbmm(ra,atmp,rada)
call csr_mat_row_prod(ra,rada,omp,info)
call csr_mat_row_prod(rada,rada,oden,info)
call psb_sum(ictxt,omp)
call psb_sum(ictxt,oden)
omp = omp/oden
!!$ write(0,*) 'Check on output restrictor',omp(1:min(size(omp),10))
! Compute omega_int
ommx = -1d300
do i=1, ncol
omi(i) = omp(ilaggr(i))
ommx = max(ommx,omi(i))
end do
! Compute omega_fine
! Going over the columns of atmp means going over the rows
! of A^T. Hopefully ;-)
call psb_spcnv(atmp,atmp2,info,afmt='coo')
if (info == 0) call psb_spcnv(atmp2,info,afmt='csc')
do i=1, ncol
omf(i) = ommx
do j=atmp2%ia2(i),atmp2%ia2(i+1)-1
omf(i) = min(omf(i),omi(atmp2%ia1(j)))
end do
omf(i) = max(dzero,omf(i))
end do
omf(1:ncol) = omf(1:ncol)*adinv(1:ncol)
call psb_sp_free(atmp2,info)
if (psb_toupper(atmp%fida)=='CSR') then
do i=1,atmp%m
do j=atmp%ia2(i),atmp%ia2(i+1)-1
if (atmp%ia1(j) == i) then
atmp%aspk(j) = done - atmp%aspk(j)*omf(atmp%ia1(j))
else
atmp%aspk(j) = - atmp%aspk(j)*omf(atmp%ia1(j))
end if
end do
end do
else
call psb_errpush(4001,name,a_err='Invalid ATMP storage format')
goto 9999
end if
call psb_symbmm(rtilde,atmp,am2,info)
call psb_numbmm(rtilde,atmp,am2)
!
! Now we have to gather the halo of am1, and add it to itself
! to multiply it by A,
!
call psb_sphalo(am1,desc_a,am4,info,&
& colcnv=.false.,rowscale=.true.)
if (info == 0) call psb_rwextd(ncol,am1,info,b=am4)
if (info == 0) call psb_sp_free(am4,info)
if(info /= 0) then
call psb_errpush(4001,name,a_err='Halo of am1')
goto 9999
end if
call psb_symbmm(a,am1,am3,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='symbmm 2')
goto 9999
end if
call psb_numbmm(a,am1,am3)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done NUMBMM 2'
!
! Now we have to fix this. The only rows of B that are correct
! are those corresponding to "local" aggregates, i.e. indices in ilaggr(:)
!
call psb_spcnv(am2,info,afmt='COO')
nzl = psb_sp_get_nnzeros(am2)
i=0
do k=1, nzl
if ((naggrm1 < am2%ia1(k)) .and. (am2%ia1(k) <= naggrp1)) then
i = i+1
am2%aspk(i) = am2%aspk(k)
am2%ia1(i) = am2%ia1(k)
am2%ia2(i) = am2%ia2(k)
end if
end do
am2%infoa(psb_nnz_) = i
call psb_spcnv(am2,info,afmt='csr',dupl=psb_dupl_add_)
if (info /=0) then
call psb_errpush(4010,name,a_err='spcnv am2')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'starting sphalo/ rwxtd'
! am2 = ((i-wDA)Ptilde)^T
call psb_sphalo(am3,desc_a,am4,info,&
& colcnv=.false.,rowscale=.true.)
if (info == 0) call psb_rwextd(ncol,am3,info,b=am4)
if (info == 0) call psb_sp_free(am4,info)
if(info /= 0) then
call psb_errpush(4001,name,a_err='Extend am3')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'starting symbmm 3'
call psb_symbmm(am2,am3,b,info)
if (info == 0) call psb_numbmm(am2,am3,b)
if (info == 0) call psb_sp_free(am3,info)
if (info == 0) call psb_spcnv(b,info,afmt='coo',dupl=psb_dupl_add_)
if (info /= 0) then
call psb_errpush(4001,name,a_err='Build b = am2 x am3')
goto 9999
end if
select case(p%iprcparm(mld_coarse_mat_))
case(mld_distr_mat_)
call psb_sp_clone(b,p%ac,info)
nzac = p%ac%infoa(psb_nnz_)
nzl = p%ac%infoa(psb_nnz_)
if (info == 0) call psb_cdall(ictxt,p%desc_ac,info,nl=nlaggr(me+1))
if (info == 0) call psb_cdins(nzl,p%ac%ia1,p%ac%ia2,p%desc_ac,info)
if (info == 0) call psb_cdasb(p%desc_ac,info)
if (info == 0) call psb_glob_to_loc(p%ac%ia1(1:nzl),p%desc_ac,info,iact='I')
if (info == 0) call psb_glob_to_loc(p%ac%ia2(1:nzl),p%desc_ac,info,iact='I')
if (info /= 0) then
call psb_errpush(4001,name,a_err='Creating p%desc_ac and converting ac')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Assembld aux descr. distr.'
p%ac%m=psb_cd_get_local_rows(p%desc_ac)
p%ac%k=psb_cd_get_local_cols(p%desc_ac)
p%ac%fida='COO'
p%ac%descra='GUN'
call psb_sp_free(b,info)
if (info == 0) deallocate(nzbr,idisp,stat=info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_sp_free')
goto 9999
end if
if (np>1) then
nzl = psb_sp_get_nnzeros(am1)
call psb_glob_to_loc(am1%ia1(1:nzl),p%desc_ac,info,'I')
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_glob_to_loc')
goto 9999
end if
endif
am1%k=psb_cd_get_local_cols(p%desc_ac)
if (np>1) then
call psb_spcnv(am2,info,afmt='coo',dupl=psb_dupl_add_)
nzl = am2%infoa(psb_nnz_)
if (info == 0) call psb_glob_to_loc(am2%ia1(1:nzl),p%desc_ac,info,'I')
if (info == 0) call psb_spcnv(am2,info,afmt='csr',dupl=psb_dupl_add_)
if(info /= 0) then
call psb_errpush(4001,name,a_err='Converting am2 to local')
goto 9999
end if
end if
am2%m=psb_cd_get_local_cols(p%desc_ac)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done ac '
case(mld_repl_mat_)
!
!
call psb_cdall(ictxt,p%desc_ac,info,mg=ntaggr,repl=.true.)
nzbr(:) = 0
nzbr(me+1) = b%infoa(psb_nnz_)
call psb_sum(ictxt,nzbr(1:np))
nzac = sum(nzbr)
if (info == 0) call psb_sp_all(ntaggr,ntaggr,p%ac,nzac,info)
if (info /= 0) goto 9999
do ip=1,np
idisp(ip) = sum(nzbr(1:ip-1))
enddo
ndx = nzbr(me+1)
call mpi_allgatherv(b%aspk,ndx,mpi_double_precision,p%ac%aspk,nzbr,idisp,&
& mpi_double_precision,icomm,info)
if (info == 0) call mpi_allgatherv(b%ia1,ndx,mpi_integer,p%ac%ia1,nzbr,idisp,&
& mpi_integer,icomm,info)
if (info == 0) call mpi_allgatherv(b%ia2,ndx,mpi_integer,p%ac%ia2,nzbr,idisp,&
& mpi_integer,icomm,info)
if (info /= 0) then
call psb_errpush(4001,name,a_err=' from mpi_allgatherv')
goto 9999
end if
p%ac%m = ntaggr
p%ac%k = ntaggr
p%ac%infoa(psb_nnz_) = nzac
p%ac%fida='COO'
p%ac%descra='GUN'
call psb_spcnv(p%ac,info,afmt='coo',dupl=psb_dupl_add_)
if(info /= 0) goto 9999
call psb_sp_free(b,info)
if(info /= 0) goto 9999
deallocate(nzbr,idisp,stat=info)
if (info /= 0) then
info = 4000
call psb_errpush(info,name)
goto 9999
end if
case default
info = 4001
call psb_errpush(info,name,a_err='invalid mld_coarse_mat_')
goto 9999
end select
call psb_spcnv(p%ac,info,afmt='csr',dupl=psb_dupl_add_)
if(info /= 0) then
call psb_errpush(4010,name,a_err='spcnv')
goto 9999
end if
!
! Copy the prolongation/restriction matrices into the descriptor map.
! am2 => R i.e. restriction operator
! am1 => P i.e. prolongation operator
!
p%map = psb_linmap(psb_map_aggr_,desc_a,&
& p%desc_ac,am2,am1,ilaggr,nlaggr)
if (info == 0) call psb_sp_free(am1,info)
if (info == 0) call psb_sp_free(am2,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='sp_Free')
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Done smooth_aggregate '
call psb_erractionrestore(err_act)
return
9999 continue
call psb_errpush(info,name)
call psb_erractionrestore(err_act)
if (err_act.eq.psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine csc_mat_col_prod(a,b,v,info)
type(psb_dspmat_type), intent(in) :: a, b
real(psb_dpk_), intent(out) :: v(:)
integer, intent(out) :: info
integer :: i,j,k, nr, nc,iap,nra,ibp,nrb
logical :: csca, cscb
info = 0
nc = psb_sp_get_ncols(a)
if (nc /= psb_sp_get_ncols(b)) then
write(0,*) 'Matrices A and B should have same columns'
info = -1
return
end if
csca = (psb_toupper(a%fida(1:3))=='CSC')
cscb = (psb_toupper(b%fida(1:3))=='CSC')
if (.not.(csca.and.cscb)) then
write(0,*) 'Matrices A and B should be in CSC'
info = -2
return
end if
do j=1, nc
iap = a%ia2(j)
nra = a%ia2(j+1)-iap
ibp = b%ia2(j)
nrb = b%ia2(j+1)-ibp
v(j) = sparse_srtd_dot(nra,a%ia1(iap:iap+nra-1),a%aspk(iap:iap+nra-1),&
& nrb,b%ia1(ibp:ibp+nrb-1),b%aspk(ibp:ibp+nrb-1))
end do
end subroutine csc_mat_col_prod
subroutine csr_mat_row_prod(a,b,v,info)
type(psb_dspmat_type), intent(in) :: a, b
real(psb_dpk_), intent(out) :: v(:)
integer, intent(out) :: info
integer :: i,j,k, nr, nc,iap,nca,ibp,ncb
logical :: csra, csrb
info = 0
nr = psb_sp_get_nrows(a)
if (nr /= psb_sp_get_nrows(b)) then
write(0,*) 'Matrices A and B should have same rows'
info = -1
return
end if
csra = (psb_toupper(a%fida(1:3))=='CSR')
csrb = (psb_toupper(b%fida(1:3))=='CSR')
if (.not.(csra.and.csrb)) then
write(0,*) 'Matrices A and B should be in CSR'
info = -2
return
end if
do j=1, nr
iap = a%ia2(j)
nca = a%ia2(j+1)-iap
ibp = b%ia2(j)
ncb = b%ia2(j+1)-ibp
v(j) = sparse_srtd_dot(nca,a%ia1(iap:iap+nca-1),a%aspk(iap:iap+nca-1),&
& ncb,b%ia1(ibp:ibp+ncb-1),b%aspk(ibp:ibp+ncb-1))
end do
end subroutine csr_mat_row_prod
function sparse_srtd_dot(nv1,iv1,v1,nv2,iv2,v2) result(dot)
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(:), iv2(:)
real(psb_dpk_), intent(in) :: v1(:),v2(:)
real(psb_dpk_) :: dot
integer :: i,j,k, ip1, ip2
dot = dzero
ip1 = 1
ip2 = 1
do
if (ip1 > nv1) exit
if (ip2 > nv2) exit
if (iv1(ip1) == iv2(ip2)) then
dot = dot + v1(ip1)*v2(ip2)
ip1 = ip1 + 1
ip2 = ip2 + 1
else if (iv1(ip1) < iv2(ip2)) then
ip1 = ip1 + 1
else
ip2 = ip2 + 1
end if
end do
end function sparse_srtd_dot
end subroutine mld_daggrmat_minnrg_asb
mlprec/mld_dmlprec_aply.f90
+558 -102
View File
@@ -158,9 +158,13 @@ subroutine mld_dmlprec_aply(alpha,p,x,beta,y,desc_data,trans,work,info)
! Local variables
integer :: ictxt, np, me, err_act
integer :: debug_level, debug_unit
integer :: debug_level, debug_unit, nlev,nc2l,nr2l,level
character(len=20) :: name
character :: trans_
type psb_mlprec_wrk_type
real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
end type psb_mlprec_wrk_type
type(psb_mlprec_wrk_type), allocatable :: mlprec_wrk(:)
name='mld_dmlprec_aply'
info = 0
@@ -177,79 +181,120 @@ subroutine mld_dmlprec_aply(alpha,p,x,beta,y,desc_data,trans,work,info)
trans_ = psb_toupper(trans)
select case(p%precv(2)%iprcparm(mld_ml_type_))
if (.false.) then
nlev = size(p%precv)
allocate(mlprec_wrk(nlev),stat=info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='Allocate')
goto 9999
end if
level = 1
case(mld_no_ml_)
!
! No preconditioning, should not really get here
!
call psb_errpush(4001,name,a_err='mld_no_ml_ in mlprc_aply?')
goto 9999
nc2l = psb_cd_get_local_cols(p%precv(level)%base_desc)
nr2l = psb_cd_get_local_rows(p%precv(level)%base_desc)
allocate(mlprec_wrk(level)%x2l(nc2l),mlprec_wrk(level)%y2l(nc2l),&
& stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/size(x)+size(y),0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
case(mld_add_ml_)
!
! Additive multilevel
!
mlprec_wrk(level)%x2l(:) = x(:)
mlprec_wrk(level)%y2l(:) = dzero
call inner_ml_aply(level,p,mlprec_wrk,trans_,work,info)
if (info /= 0) then
call psb_errpush(4001,name,a_err='Inner prec aply')
goto 9999
end if
call psb_geaxpby(alpha,mlprec_wrk(level)%y2l,beta,y,&
& p%precv(level)%base_desc,info)
call add_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
if (info /= 0) then
call psb_errpush(4001,name,a_err='Error final update')
goto 9999
end if
else
select case(p%precv(2)%iprcparm(mld_ml_type_))
case(mld_mult_ml_)
!
! Multiplicative multilevel (multiplicative among the levels, additive inside
! each level)
!
! Pre/post-smoothing versions.
! Note that the transpose switches pre <-> post.
!
case(mld_no_ml_)
!
! No preconditioning, should not really get here
!
call psb_errpush(4001,name,a_err='mld_no_ml_ in mlprc_aply?')
goto 9999
select case(p%precv(2)%iprcparm(mld_smoother_pos_))
case(mld_add_ml_)
!
! Additive multilevel
!
case(mld_post_smooth_)
call add_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case(mld_mult_ml_)
!
! Multiplicative multilevel (multiplicative among the levels, additive inside
! each level)
!
! Pre/post-smoothing versions.
! Note that the transpose switches pre <-> post.
!
select case(p%precv(2)%iprcparm(mld_smoother_pos_))
case(mld_post_smooth_)
select case (trans_)
case('N')
call mlt_post_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case('T','C')
call mlt_pre_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
goto 9999
end select
case(mld_pre_smooth_)
select case (trans_)
case('N')
call mlt_pre_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case('T','C')
call mlt_post_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
goto 9999
end select
case(mld_twoside_smooth_)
call mlt_twoside_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
select case (trans_)
case('N')
call mlt_post_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case('T','C')
call mlt_pre_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
info = 4013
call psb_errpush(info,name,a_err='invalid smooth_pos',&
& i_Err=(/p%precv(2)%iprcparm(mld_smoother_pos_),0,0,0,0/))
goto 9999
end select
case(mld_pre_smooth_)
select case (trans_)
case('N')
call mlt_pre_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case('T','C')
call mlt_post_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
goto 9999
end select
case(mld_twoside_smooth_)
call mlt_twoside_ml_aply(alpha,p,x,beta,y,desc_data,trans_,work,info)
case default
info = 4013
call psb_errpush(info,name,a_err='invalid smooth_pos',&
& i_Err=(/p%precv(2)%iprcparm(mld_smoother_pos_),0,0,0,0/))
call psb_errpush(info,name,a_err='invalid mltype',&
& i_Err=(/p%precv(2)%iprcparm(mld_ml_type_),0,0,0,0/))
goto 9999
end select
case default
info = 4013
call psb_errpush(info,name,a_err='invalid mltype',&
& i_Err=(/p%precv(2)%iprcparm(mld_ml_type_),0,0,0,0/))
goto 9999
end select
endif
call psb_erractionrestore(err_act)
return
@@ -262,6 +307,422 @@ subroutine mld_dmlprec_aply(alpha,p,x,beta,y,desc_data,trans,work,info)
return
contains
recursive subroutine inner_ml_aply(level,p,mlprec_wrk,trans,work,info)
implicit none
! Arguments
integer :: level
type(mld_dprec_type), intent(in) :: p
type(psb_mlprec_wrk_type), intent(inout) :: mlprec_wrk(:)
character, intent(in) :: trans
real(psb_dpk_),target :: work(:)
integer, intent(out) :: info
! Local variables
integer :: ictxt,np,me,i, nr2l,nc2l,err_act
integer :: debug_level, debug_unit
integer :: nlev, ilev
character(len=20) :: name
name = 'inner_ml_aply'
info = 0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
nlev = size(p%precv)
if ((level < 1) .or. (level > nlev)) then
call psb_errpush(4001,name,a_err='wrong call level to inner_ml')
goto 9999
end if
ictxt = psb_cd_get_context(p%precv(level)%base_desc)
call psb_info(ictxt, me, np)
if (level > 1) then
nc2l = psb_cd_get_local_cols(p%precv(level)%base_desc)
nr2l = psb_cd_get_local_rows(p%precv(level)%base_desc)
allocate(mlprec_wrk(level)%x2l(nc2l),mlprec_wrk(level)%y2l(nc2l),&
& stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*nc2l,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
end if
select case(p%precv(level)%iprcparm(mld_ml_type_))
case(mld_no_ml_)
!
! No preconditioning, should not really get here
!
write(0,*) 'MLD_NO_ML_ in inner_ml ',level
call psb_errpush(4001,name,a_err='mld_no_ml_ in mlprc_aply?')
goto 9999
case(mld_add_ml_)
!
! Additive multilevel
!
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%x2l,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,dzero,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc, trans,work,info)
if (info /= 0) goto 9999
if (level < nlev) then
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info /= 0) goto 9999
!
! Apply the prolongator
!
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& done,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= 0) goto 9999
end if
case(mld_mult_ml_)
!
! Multiplicative multilevel (multiplicative among the levels, additive inside
! each level)
!
! Pre/post-smoothing versions.
! Note that the transpose switches pre <-> post.
!
select case(p%precv(level)%iprcparm(mld_smoother_pos_))
case(mld_post_smooth_)
select case (trans_)
case('N')
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%x2l,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
! This is one step of post-smoothing
if (level < nlev) then
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info /= 0) goto 9999
!
! Apply the prolongator
!
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& dzero,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= 0) goto 9999
!
! Compute the residual
!
call psb_spmm(-done,p%precv(level)%base_a,mlprec_wrk(level)%y2l,&
& done,mlprec_wrk(level)%x2l,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= 0) goto 9999
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,done,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,&
& trans,work,info)
else
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,dzero,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,&
& trans,work,info)
end if
case('T','C')
! Post-smoothing transpose is pre-smoothing
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%x2l,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
!
! Apply the base preconditioner
!
call mld_baseprec_aply(done,p%precv(ilev)%prec,mlprec_wrk(ilev)%x2l,&
& dzero,mlprec_wrk(ilev)%y2l,p%precv(ilev)%base_desc,trans,work,info)
if (info /= 0) goto 9999
!
! Compute the residual (at all levels but the coarsest one)
!
if (ilev < nlev) then
call psb_spmm(-done,p%precv(ilev)%base_a,&
& mlprec_wrk(ilev)%y2l,done,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%base_desc,info,work=work,trans=trans)
if (info /= 0) goto 9999
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info /= 0) goto 9999
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& done,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= 0) goto 9999
end if
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
goto 9999
end select
case(mld_pre_smooth_)
select case (trans_)
case('N')
! One step of pre-smoothing
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%x2l,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
!
! Apply the base preconditioner
!
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,&
& dzero,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,trans,work,info)
if (info /= 0) goto 9999
!
! Compute the residual (at all levels but the coarsest one)
!
if (level < nlev) then
call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%y2l,done,mlprec_wrk(level)%x2l,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info /= 0) goto 9999
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info /= 0) goto 9999
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& done,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= 0) goto 9999
end if
case('T','C')
! pre-smooth transpose is post-smoothing
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%x2l,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
if (level < nlev) then
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info /= 0) goto 9999
!
! Apply the prolongator
!
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& dzero,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= 0) goto 9999
!
! Compute the residual
!
call psb_spmm(-done,p%precv(level)%base_a,mlprec_wrk(level)%y2l,&
& done,mlprec_wrk(level)%x2l,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= 0) goto 9999
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,done,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,&
& trans,work,info)
else
call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,dzero,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,&
& trans,work,info)
end if
case default
info = 4001
call psb_errpush(info,name,a_err='invalid trans')
goto 9999
end select
case(mld_twoside_smooth_)
nc2l = psb_cd_get_local_cols(p%precv(level)%base_desc)
nr2l = psb_cd_get_local_rows(p%precv(level)%base_desc)
allocate(mlprec_wrk(level)%ty(nc2l), mlprec_wrk(level)%tx(nc2l), stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*nc2l,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
if (level > 1) then
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level-1)%ty,&
& dzero,mlprec_wrk(level)%x2l,&
& p%precv(level)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
call psb_geaxpby(done,mlprec_wrk(level)%x2l,dzero,mlprec_wrk(level)%tx,&
& p%precv(level)%base_desc,info)
!
! Apply the base preconditioner
!
if (info == 0) call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%x2l,dzero,mlprec_wrk(level)%y2l,&
& p%precv(level)%base_desc,trans,work,info)
!
! Compute the residual (at all levels but the coarsest one)
! and call recursively
!
if(level < nlev) then
mlprec_wrk(level)%ty = mlprec_wrk(level)%x2l
if (info == 0) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%y2l,done,mlprec_wrk(level)%ty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
!
! Apply the prolongator
!
call psb_map_Y2X(done,mlprec_wrk(level+1)%y2l,&
& done,mlprec_wrk(level)%y2l,&
& p%precv(level+1)%map,info,work=work)
if (info /=0 ) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
!
! Compute the residual
!
call psb_spmm(-done,p%precv(level)%base_a,mlprec_wrk(level)%y2l,&
& done,mlprec_wrk(level)%tx,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
!
! Apply the base preconditioner
!
if (info == 0) call mld_baseprec_aply(done,p%precv(level)%prec,&
& mlprec_wrk(level)%tx,&
& done,mlprec_wrk(level)%y2l,p%precv(level)%base_desc,&
& trans, work,info)
if (info /= 0) then
call psb_errpush(4001,name,a_err='Error: residual/baseprec_aply')
goto 9999
end if
endif
case default
info = 4013
call psb_errpush(info,name,a_err='invalid smooth_pos',&
& i_Err=(/p%precv(level)%iprcparm(mld_smoother_pos_),0,0,0,0/))
goto 9999
end select
case default
info = 4013
call psb_errpush(info,name,a_err='invalid mltype',&
& i_Err=(/p%precv(level)%iprcparm(mld_ml_type_),0,0,0,0/))
goto 9999
end select
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act.eq.psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine inner_ml_aply
!
! Subroutine: add_ml_aply
! Version: real
@@ -330,7 +791,7 @@ contains
! 3. DO ilev=nlev-1,1,-1
!
! ! Transfer Y(ilev+1) to the next finer level.
! Y(ilev) = P(ilev+1)*Y(ilev+1)
! Y(ilev) = Y(ilev) + P(ilev+1)*Y(ilev+1)
!
! ENDDO
!
@@ -356,9 +817,9 @@ contains
integer :: nlev, ilev
character(len=20) :: name
type psb_mlprec_wrk_type
real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
end type psb_mlprec_wrk_type
!!$ type psb_mlprec_wrk_type
!!$ real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
!!$ end type psb_mlprec_wrk_type
type(psb_mlprec_wrk_type), allocatable :: mlprec_wrk(:)
name='add_ml_aply'
@@ -396,38 +857,33 @@ contains
mlprec_wrk(1)%x2l(:) = x(:)
mlprec_wrk(1)%y2l(:) = dzero
call mld_baseprec_aply(alpha,p%precv(1)%prec,x,beta,y,&
& p%precv(1)%base_desc,trans,work,info)
if (info /=0) then
call psb_errpush(4010,name,a_err='baseprec_aply')
goto 9999
end if
!
! STEP 2
!
! For each level except the finest one ...
!
do ilev = 2, nlev
nc2l = psb_cd_get_local_cols(p%precv(ilev)%base_desc)
nr2l = psb_cd_get_local_rows(p%precv(ilev)%base_desc)
allocate(mlprec_wrk(ilev)%x2l(nc2l),mlprec_wrk(ilev)%y2l(nc2l),&
& stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*nc2l,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
! Apply the prolongator transpose, i.e. the restriction
call psb_map_X2Y(done,mlprec_wrk(ilev-1)%x2l,&
& dzero,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
do ilev = 1, nlev
if (ilev > 1) then
nc2l = psb_cd_get_local_cols(p%precv(ilev)%base_desc)
nr2l = psb_cd_get_local_rows(p%precv(ilev)%base_desc)
allocate(mlprec_wrk(ilev)%x2l(nc2l),mlprec_wrk(ilev)%y2l(nc2l),&
& stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*nc2l,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
! Apply the prolongator transpose, i.e. the restriction
call psb_map_X2Y(done,mlprec_wrk(ilev-1)%x2l,&
& dzero,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
end if
end if
!
@@ -467,7 +923,7 @@ contains
!
! Compute the output vector Y
!
call psb_geaxpby(alpha,mlprec_wrk(1)%y2l,done,y,p%precv(1)%base_desc,info)
call psb_geaxpby(alpha,mlprec_wrk(1)%y2l,beta,y,p%precv(1)%base_desc,info)
if (info /= 0) then
call psb_errpush(4001,name,a_err='Error on final update')
goto 9999
@@ -593,9 +1049,9 @@ contains
integer :: nlev, ilev
character(len=20) :: name
type psb_mlprec_wrk_type
real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
end type psb_mlprec_wrk_type
!!$ type psb_mlprec_wrk_type
!!$ real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
!!$ end type psb_mlprec_wrk_type
type(psb_mlprec_wrk_type), allocatable :: mlprec_wrk(:)
name='mlt_pre_ml_aply'
@@ -686,7 +1142,7 @@ contains
call psb_map_X2Y(done,mlprec_wrk(ilev-1)%tx,&
& dzero,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
@@ -854,9 +1310,9 @@ contains
integer :: nlev, ilev
character(len=20) :: name
type psb_mlprec_wrk_type
real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
end type psb_mlprec_wrk_type
!!$ type psb_mlprec_wrk_type
!!$ real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
!!$ end type psb_mlprec_wrk_type
type(psb_mlprec_wrk_type), allocatable :: mlprec_wrk(:)
name='mlt_post_ml_aply'
@@ -933,7 +1389,7 @@ contains
call psb_map_X2Y(done,mlprec_wrk(ilev-1)%x2l,&
& dzero,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
@@ -1156,9 +1612,9 @@ contains
integer :: nlev, ilev
character(len=20) :: name
type psb_mlprec_wrk_type
real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
end type psb_mlprec_wrk_type
!!$ type psb_mlprec_wrk_type
!!$ real(psb_dpk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
!!$ end type psb_mlprec_wrk_type
type(psb_mlprec_wrk_type), allocatable :: mlprec_wrk(:)
name='mlt_twoside_ml_aply'
@@ -1248,7 +1704,7 @@ contains
call psb_map_X2Y(done,mlprec_wrk(ilev-1)%ty,&
& dzero,mlprec_wrk(ilev)%x2l,&
& p%precv(ilev)%map,info,work=work)
if (info /=0) then
call psb_errpush(4001,name,a_err='Error during restriction')
goto 9999
mlprec/mld_dprecinit.F90
+8
View File
@@ -217,6 +217,14 @@ subroutine mld_dprecinit(p,ptype,info,nlev)
p%precv(ilev_)%rprcparm(:) = dzero
p%precv(ilev_)%prec%iprcparm(:) = 0
p%precv(ilev_)%prec%rprcparm(:) = dzero
p%precv(ilev_)%iprcparm(mld_ml_type_) = mld_mult_ml_
p%precv(ilev_)%iprcparm(mld_aggr_alg_) = mld_dec_aggr_
p%precv(ilev_)%iprcparm(mld_aggr_kind_) = mld_smooth_prol_
p%precv(ilev_)%iprcparm(mld_coarse_mat_) = mld_distr_mat_
p%precv(ilev_)%iprcparm(mld_smoother_pos_) = mld_post_smooth_
p%precv(ilev_)%iprcparm(mld_aggr_omega_alg_) = mld_eig_est_
p%precv(ilev_)%iprcparm(mld_aggr_eig_) = mld_max_norm_
p%precv(ilev_)%iprcparm(mld_aggr_filter_) = mld_no_filter_mat_
p%precv(ilev_)%prec%iprcparm(mld_smoother_type_) = mld_as_
p%precv(ilev_)%prec%iprcparm(mld_sub_solve_) = mld_ilu_n_
p%precv(ilev_)%prec%iprcparm(mld_sub_restr_) = psb_halo_
mlprec/mld_dprecset.f90
+5 -1
View File
@@ -140,6 +140,9 @@ subroutine mld_dprecseti(p,what,val,info,ilev)
case(mld_smoother_type_,mld_sub_solve_,mld_sub_restr_,mld_sub_prol_,&
& mld_sub_ren_,mld_sub_ovr_,mld_sub_fillin_,mld_smoother_sweeps_)
p%precv(ilev_)%prec%iprcparm(what) = val
case(mld_ml_type_,mld_aggr_alg_,mld_aggr_kind_,&
& mld_smoother_pos_,mld_aggr_omega_alg_,mld_aggr_eig_)
p%precv(ilev_)%iprcparm(what) = val
case default
write(0,*) name,': Error: invalid WHAT'
info = -2
@@ -228,7 +231,7 @@ subroutine mld_dprecseti(p,what,val,info,ilev)
end do
case(mld_ml_type_,mld_aggr_alg_,mld_aggr_kind_,&
& mld_smoother_pos_,mld_aggr_omega_alg_,mld_aggr_eig_)
do ilev_=2,nlev_
do ilev_=1,nlev_
if (.not.allocated(p%precv(ilev_)%iprcparm)) then
write(0,*) name,&
&': Error: uninitialized preconditioner component, should call MLD_PRECINIT'
@@ -237,6 +240,7 @@ subroutine mld_dprecseti(p,what,val,info,ilev)
endif
p%precv(ilev_)%iprcparm(what) = val
end do
case(mld_coarse_mat_)
if (.not.allocated(p%precv(nlev_)%iprcparm)) then
write(0,*) name,&
mlprec/mld_inner_mod.f90
+12
View File
@@ -630,6 +630,18 @@ module mld_inner_mod
end subroutine mld_zaggrmat_smth_asb
end interface
interface mld_aggrmat_minnrg_asb
subroutine mld_daggrmat_minnrg_asb(a,desc_a,ilaggr,nlaggr,p,info)
use psb_base_mod, only : psb_dspmat_type, psb_desc_type, psb_dpk_
use mld_prec_type, only : mld_dbaseprec_type, mld_donelev_type
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent(in) :: desc_a
integer, intent(inout) :: ilaggr(:), nlaggr(:)
type(mld_donelev_type), intent(inout), target :: p
integer, intent(out) :: info
end subroutine mld_daggrmat_minnrg_asb
end interface
interface mld_baseprec_bld
subroutine mld_sbaseprec_bld(a,desc_a,p,info,upd)
use psb_base_mod, only : psb_sspmat_type, psb_desc_type, psb_spk_
mlprec/mld_prec_type.f90
+7 -4
View File
@@ -353,9 +353,10 @@ module mld_prec_type
!
! Legal values for entry: mld_aggr_kind_
!
integer, parameter :: mld_no_smooth_=0, mld_smooth_prol_=1, mld_biz_prol_=2
integer, parameter :: mld_no_smooth_=0, mld_smooth_prol_=1
integer, parameter :: mld_min_energy_=2, mld_biz_prol_=3
! Disabling biz_prol for the time being.
integer, parameter :: mld_max_aggr_kind_=mld_smooth_prol_
integer, parameter :: mld_max_aggr_kind_=mld_min_energy_
!
! Legal values for entry: mld_aggr_filter_
!
@@ -412,8 +413,8 @@ module mld_prec_type
& smooth_names(1:3)=(/'pre-smoothing ','post-smoothing ',&
& 'pre/post-smoothing'/)
character(len=15), parameter, private :: &
& aggr_kinds(0:2)=(/'nonsmoothed ','smoothed ',&
& 'bizr. smoothed'/)
& aggr_kinds(0:3)=(/'nonsmoothed ','smoothed ',&
& 'min energy ','bizr. smoothed'/)
character(len=15), parameter, private :: &
& matrix_names(0:1)=(/'distributed ','replicated '/)
character(len=18), parameter, private :: &
@@ -546,6 +547,8 @@ contains
val = mld_no_smooth_
case('SMOOTHED')
val = mld_smooth_prol_
case('MINENERGY')
val = mld_min_energy_
case('PRE')
val = mld_pre_smooth_
case('POST')