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1177 lines
38 KiB
Fortran
1177 lines
38 KiB
Fortran
!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
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!!$
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!!$ (C) Copyright 2008,2009,2010
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the MLD2P4 group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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! File: mld_daggrmat_minnrg_asb.F90
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!
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! Subroutine: mld_daggrmat_minnrg_asb
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! Version: real
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!
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! This routine builds a coarse-level matrix A_C from a fine-level matrix A
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! by using the Galerkin approach, i.e.
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!
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! A_C = P_C^T A P_C,
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!
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! where P_C is a prolongator from the coarse level to the fine one.
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!
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! The prolongator P_C is built according to a smoothed aggregation algorithm,
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! i.e. it is obtained by applying a damped Jacobi smoother to the piecewise
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! constant interpolation operator P corresponding to the fine-to-coarse level
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! mapping built by the mld_aggrmap_bld subroutine:
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!
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! P_C = (I - omega*D^(-1)A) * P,
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!
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! where D is the diagonal matrix with main diagonal equal to the main diagonal
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! of A, and omega is a suitable smoothing parameter. An estimate of the spectral
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! radius of D^(-1)A, to be used in the computation of omega, is provided,
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! according to the value of p%parms%aggr_omega_alg, specified by the user
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! through mld_dprecinit and mld_dprecset.
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!
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! This routine can also build A_C according to a "bizarre" aggregation algorithm,
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! using a "naive" prolongator proposed by the authors of MLD2P4. However, this
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! prolongator still requires a deep analysis and testing and its use is not
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! recommended.
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!
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! The coarse-level matrix A_C is distributed among the parallel processes or
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! replicated on each of them, according to the value of p%parms%coarse_mat,
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! specified by the user through mld_dprecinit and mld_dprecset.
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!
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! For more details see
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! M. Brezina and P. Vanek, A black-box iterative solver based on a
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! two-level Schwarz method, Computing, 63 (1999), 233-263.
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! P. D'Ambra, D. di Serafino and S. Filippone, On the development of
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! PSBLAS-based parallel two-level Schwarz preconditioners, Appl. Num. Math.
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! 57 (2007), 1181-1196.
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!
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! Arguments:
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! a - type(psb_dspmat_type), input.
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! The sparse matrix structure containing the local part of
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! the fine-level matrix.
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! desc_a - type(psb_desc_type), input.
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! The communication descriptor of the fine-level matrix.
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! p - type(mld_donelev_type), input/output.
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! The 'one-level' data structure that will contain the local
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! part of the matrix to be built as well as the information
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! concerning the prolongator and its transpose.
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! ilaggr - integer, dimension(:), allocatable.
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! The mapping between the row indices of the coarse-level
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! matrix and the row indices of the fine-level matrix.
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! ilaggr(i)=j means that node i in the adjacency graph
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! of the fine-level matrix is mapped onto node j in the
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! adjacency graph of the coarse-level matrix.
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! nlaggr - integer, dimension(:), allocatable.
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! nlaggr(i) contains the aggregates held by process i.
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! info - integer, output.
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! Error code.
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!
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subroutine mld_daggrmat_minnrg_asb(a,desc_a,ilaggr,nlaggr,p,info)
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use psb_base_mod
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use mld_d_inner_mod, mld_protect_name => mld_daggrmat_minnrg_asb
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#ifdef MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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! Arguments
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type(psb_dspmat_type), intent(in) :: a
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(inout) :: ilaggr(:), nlaggr(:)
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type(mld_donelev_type), intent(inout), target :: p
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integer, intent(out) :: info
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! Local variables
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type(psb_dspmat_type) :: b
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integer, allocatable :: nzbr(:), idisp(:)
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integer :: nrow, nglob, ncol, ntaggr, nzac, ip, ndx,&
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& naggr, nzl,naggrm1,naggrp1, i, j, k, jd, icolF, nrt
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integer ::ictxt,np,me, err_act, icomm
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character(len=20) :: name
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type(psb_dspmat_type) :: am1,am2, am3, am4, atmp, atmp2, atran
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type(psb_d_coo_sparse_mat) :: acoo, acoof, bcoo, tmpcoo
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type(psb_d_csr_sparse_mat) :: acsr1, acsr2, acsr3, bcsr, acsr, acsrf, ptilde, rtilde
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type(psb_d_csr_sparse_mat) :: ra, rada, arp, ardap, artp, artdatp, acrtran
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type(psb_d_csc_sparse_mat) :: ap, adap, atp, atdatp, acsc
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real(psb_dpk_), allocatable :: adiag(:), pj(:), xj(:), yj(:), omf(:),omp(:),omi(:),&
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& oden(:), adinv(:)
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logical :: filter_mat
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integer :: debug_level, debug_unit
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integer, parameter :: ncmax=16
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real(psb_dpk_) :: omega, anorm, tmp, dg, theta, alpha,beta, ommx
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name='mld_aggrmat_minnrg'
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if(psb_get_errstatus().ne.0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt = desc_a%get_context()
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icomm = desc_a%get_mpic()
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ictxt = desc_a%get_context()
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call psb_info(ictxt, me, np)
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nglob = desc_a%get_global_rows()
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nrow = desc_a%get_local_rows()
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ncol = desc_a%get_local_cols()
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theta = p%parms%aggr_thresh
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naggr = nlaggr(me+1)
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ntaggr = sum(nlaggr)
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allocate(nzbr(np), idisp(np),stat=info)
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if (info /= psb_success_) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/2*np,0,0,0,0/),&
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& a_err='integer')
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goto 9999
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end if
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naggrm1 = sum(nlaggr(1:me))
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naggrp1 = sum(nlaggr(1:me+1))
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filter_mat = (p%parms%aggr_filter == mld_filter_mat_)
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ilaggr(1:nrow) = ilaggr(1:nrow) + naggrm1
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call psb_halo(ilaggr,desc_a,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_halo')
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goto 9999
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end if
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! naggr: number of local aggregates
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! nrow: local rows.
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!
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allocate(adiag(ncol),adinv(ncol),xj(ncol),&
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& yj(ncol),omf(ncol),omp(ntaggr),oden(ntaggr),omi(ncol),stat=info)
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if (info /= psb_success_) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/6*ncol+ntaggr,0,0,0,0/),&
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& a_err='real(psb_dpk_)')
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goto 9999
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end if
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! Get the diagonal D
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! Get the diagonal D
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call a%get_diag(adiag,info)
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if (info == psb_success_) &
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& call psb_halo(adiag,desc_a,info)
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='sp_getdiag')
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goto 9999
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end if
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! 1. Allocate Ptilde in sparse matrix form
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call acoo%allocate(ncol,ntaggr,ncol)
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do i=1,ncol
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acoo%val(i) = done
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acoo%ia(i) = i
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acoo%ja(i) = ilaggr(i)
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end do
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call acoo%set_nzeros(ncol)
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call acoo%set_dupl(psb_dupl_add_)
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call ptilde%mv_from_coo(acoo,info)
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if (info == psb_success_) call a%cscnv(acsr3,info,dupl=psb_dupl_add_)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='spcnv')
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goto 9999
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end if
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& ' Initial copies done.'
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call psb_symbmm(acsr3,ptilde,arp,info)
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if (info == psb_success_) call psb_numbmm(acsr3,ptilde,arp)
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='symbmm 1')
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goto 9999
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end if
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call atmp%cp_from(arp)
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do i=1,size(adiag)
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if (adiag(i) /= dzero) then
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adinv(i) = done / adiag(i)
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else
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adinv(i) = done
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end if
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end do
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call atmp%scal(adinv,info)
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call psb_sphalo(atmp,desc_a,am4,info,&
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& colcnv=.false.,rowscale=.true.,outfmt='CSR ')
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if (info == psb_success_) call psb_rwextd(ncol,atmp,info,b=am4)
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if (info == psb_success_) call psb_sp_free(am4,info)
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call atmp%mv_to(acsr1)
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call psb_symbmm(acsr3,acsr1,ardap,info)
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call psb_numbmm(acsr3,acsr1,ardap)
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call acsr1%free()
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! !$ write(0,*) 'Columns of AP',psb_sp_get_ncols(ap)
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! !$ write(0,*) 'Columns of ADAP',psb_sp_get_ncols(adap)
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call ap%mv_from_fmt(arp,info)
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call adap%mv_from_fmt(ardap,info)
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call csc_mat_col_prod(ap,adap,omp,info)
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call csc_mat_col_prod(adap,adap,oden,info)
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call psb_sum(ictxt,omp)
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call psb_sum(ictxt,oden)
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! !$ write(0,*) trim(name),' OMP :',omp
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! !$ write(0,*) trim(name),' ODEN:',oden
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omp = omp/oden
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! !$ write(0,*) 'Check on output prolongator ',omp(1:min(size(omp),10))
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Done NUMBMM 1'
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! Compute omega_int
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ommx = -1d300
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do i=1, ncol
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omi(i) = omp(ilaggr(i))
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ommx = max(ommx,omi(i))
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end do
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! Compute omega_fine
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do i=1, nrow
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omf(i) = ommx
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do j=acsr3%irp(i),acsr3%irp(i+1)-1
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omf(i) = min(omf(i),omi(acsr3%ja(j)))
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end do
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omf(i) = max(dzero,omf(i))
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end do
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omf(1:nrow) = omf(1:nrow) * adinv(1:nrow)
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if (filter_mat) then
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!
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! Build the filtered matrix Af from A
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!
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call a%cscnv(acsrf,info,dupl=psb_dupl_add_)
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do i=1,nrow
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tmp = dzero
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jd = -1
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do j=acsrf%irp(i),acsrf%irp(i+1)-1
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if (acsrf%ja(j) == i) jd = j
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if (abs(acsrf%val(j)) < theta*sqrt(abs(adiag(i)*adiag(acsrf%ja(j))))) then
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tmp=tmp+acsrf%val(j)
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acsrf%val(j)=dzero
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endif
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enddo
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if (jd == -1) then
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write(0,*) 'Wrong input: we need the diagonal!!!!', i
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else
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acsrf%val(jd)=acsrf%val(jd)-tmp
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end if
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enddo
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! Take out zeroed terms
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call acsrf%mv_to_coo(tmpcoo,info)
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k = 0
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do j=1,tmpcoo%get_nzeros()
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if ((tmpcoo%val(j) /= dzero) .or. (tmpcoo%ia(j) == tmpcoo%ja(j))) then
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k = k + 1
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tmpcoo%val(k) = tmpcoo%val(j)
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tmpcoo%ia(k) = tmpcoo%ia(j)
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tmpcoo%ja(k) = tmpcoo%ja(j)
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end if
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end do
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! !$ write(debug_unit,*) me,' ',trim(name),' Non zeros from filtered matrix:',k,acsrf%m,acsrf%k
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call tmpcoo%set_nzeros(k)
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call acsrf%mv_from_coo(tmpcoo,info)
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!
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! Build the smoothed prolongator using the filtered matrix
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!
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do i=1,acsrf%get_nrows()
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do j=acsrf%irp(i),acsrf%irp(i+1)-1
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if (acsrf%ja(j) == i) then
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acsrf%val(j) = done - omf(i)*acsrf%val(j)
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else
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acsrf%val(j) = - omf(i)*acsrf%val(j)
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end if
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end do
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end do
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Done gather, going for SYMBMM 1'
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!
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! Symbmm90 does the allocation for its result.
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!
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! am1 = (I-w*D*Af)Ptilde
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! Doing it this way means to consider diag(Af_i)
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!
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!
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call psb_symbmm(acsrf,ptilde,acsr1,info)
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='symbmm 1')
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goto 9999
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end if
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call psb_numbmm(acsrf,ptilde,acsr1)
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Done NUMBMM 1'
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else
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!
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! Build the smoothed prolongator using the original matrix
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!
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do i=1,acsr3%get_nrows()
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do j=acsr3%irp(i),acsr3%irp(i+1)-1
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if (acsr3%ja(j) == i) then
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acsr3%val(j) = done - omf(i)*acsr3%val(j)
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else
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acsr3%val(j) = - omf(i)*acsr3%val(j)
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end if
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end do
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end do
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Done gather, going for SYMBMM 1'
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!
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! Symbmm90 does the allocation for its result.
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!
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! am1 = (I-w*D*A)Ptilde
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!
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!
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call psb_symbmm(acsr3,ptilde,acsr1,info)
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='symbmm 1')
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goto 9999
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end if
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call psb_numbmm(acsr3,ptilde,acsr1)
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Done NUMBMM 1'
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end if
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!
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! Now encapsulate in AM1
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!
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call am1%mv_from(acsr1)
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!
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! Ok, let's start over with the restrictor
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!
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call ptilde%transp(rtilde)
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call atmp%mv_from(acsr3)
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call psb_sphalo(atmp,desc_a,am4,info,&
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& colcnv=.true.,rowscale=.true.)
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nrt = am4%get_nrows()
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call am4%csclip(atmp2,info,1,nrt,1,ncol)
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call atmp2%cscnv(info,type='CSR')
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if (info == psb_success_) call psb_rwextd(ncol,atmp,info,b=atmp2)
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call am4%free()
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call atmp2%free()
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! This is to compute the transpose. It ONLY works if the
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! original A has a symmetric pattern.
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call atmp%transp(atmp2)
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call atmp2%csclip(atran,info,1,nrow,1,ncol)
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call atmp2%free()
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call atran%mv_to(acrtran)
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! Now for the product.
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call psb_symbmm(acrtran,ptilde,artp,info)
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if (info == psb_success_) call psb_numbmm(acrtran,ptilde,artp)
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call atmp2%cp_from(artp)
|
|
call atmp2%scal(adinv,info)
|
|
call psb_sphalo(atmp2,desc_a,am4,info,&
|
|
& colcnv=.false.,rowscale=.true.,outfmt='CSR ')
|
|
if (info == psb_success_) call psb_rwextd(ncol,atmp2,info,b=am4)
|
|
if (info == psb_success_) call am4%free()
|
|
call atmp2%mv_to(acsr2)
|
|
call psb_symbmm(acrtran,acsr2,artdatp,info)
|
|
call psb_numbmm(acrtran,acsr2,artdatp)
|
|
call acsr2%free()
|
|
call artp%mv_to_fmt(atp,info)
|
|
call artdatp%mv_to_fmt(atdatp,info)
|
|
|
|
call csc_mat_col_prod(atp,atdatp,omp,info)
|
|
call csc_mat_col_prod(atdatp,atdatp,oden,info)
|
|
call psb_sum(ictxt,omp)
|
|
call psb_sum(ictxt,oden)
|
|
! !$ write(debug_unit,*) trim(name),' OMP_R :',omp
|
|
! ! $ write(debug_unit,*) trim(name),' ODEN_R:',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 atmp%cp_to(acsc)
|
|
|
|
do i=1, nrow
|
|
omf(i) = ommx
|
|
do j=acsc%icp(i),acsc%icp(i+1)-1
|
|
omf(i) = min(omf(i),omi(acsc%ia(j)))
|
|
end do
|
|
omf(i) = max(dzero,omf(i))
|
|
end do
|
|
omf(1:nrow) = omf(1:nrow)*adinv(1:nrow)
|
|
call psb_halo(omf,desc_a,info)
|
|
call acsc%free()
|
|
|
|
|
|
call atmp%mv_to(acsr1)
|
|
|
|
do i=1,acsr1%get_nrows()
|
|
do j=acsr1%irp(i),acsr1%irp(i+1)-1
|
|
if (acsr1%ja(j) == i) then
|
|
acsr1%val(j) = done - acsr1%val(j)*omf(acsr1%ja(j))
|
|
else
|
|
acsr1%val(j) = - acsr1%val(j)*omf(acsr1%ja(j))
|
|
end if
|
|
end do
|
|
end do
|
|
|
|
call psb_symbmm(rtilde,acsr1,acsr2,info)
|
|
call psb_numbmm(rtilde,acsr1,acsr2)
|
|
|
|
|
|
!
|
|
! 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 acsr2%mv_to_coo(tmpcoo,info)
|
|
nzl = tmpcoo%get_nzeros()
|
|
i=0
|
|
do k=1, nzl
|
|
if ((naggrm1 < tmpcoo%ia(k)) .and. (tmpcoo%ia(k) <= naggrp1)) then
|
|
i = i+1
|
|
tmpcoo%val(i) = tmpcoo%val(k)
|
|
tmpcoo%ia(i) = tmpcoo%ia(k)
|
|
tmpcoo%ja(i) = tmpcoo%ja(k)
|
|
end if
|
|
end do
|
|
call tmpcoo%set_nzeros(i)
|
|
call acsr2%mv_from_coo(tmpcoo,info)
|
|
|
|
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& 'starting sphalo/ rwxtd'
|
|
|
|
!
|
|
! Final steps: build the product.
|
|
! 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 == psb_success_) call psb_rwextd(ncol,am1,info,b=am4)
|
|
if (info == psb_success_) call am4%free()
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='Halo of am1')
|
|
goto 9999
|
|
end if
|
|
|
|
call am1%cp_to(acsr1)
|
|
call a%cp_to(acsr)
|
|
|
|
call psb_symbmm(acsr,acsr1,acsr3,info)
|
|
if(info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='symbmm 2')
|
|
goto 9999
|
|
end if
|
|
|
|
call psb_numbmm(acsr,acsr1,acsr3)
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& 'Done NUMBMM 2'
|
|
call am3%mv_from(acsr3)
|
|
! am2 = ((i-wDA)Ptilde)^T
|
|
call psb_sphalo(am3,desc_a,am4,info,&
|
|
& colcnv=.false.,rowscale=.true.)
|
|
if (info == psb_success_) call psb_rwextd(ncol,am3,info,b=am4)
|
|
if (info == psb_success_) call am4%free()
|
|
call am3%mv_to(acsr3)
|
|
|
|
call psb_symbmm(acsr2,acsr3,bcsr,info)
|
|
if (info == psb_success_) call psb_numbmm(acsr2,acsr3,bcsr)
|
|
call acsr3%free()
|
|
|
|
call bcsr%mv_to_coo(bcoo,info)
|
|
call am2%mv_from(acsr2)
|
|
|
|
select case(p%parms%coarse_mat)
|
|
|
|
case(mld_distr_mat_)
|
|
|
|
nzl = bcoo%get_nrows()
|
|
if (info == psb_success_) call psb_cdall(ictxt,p%desc_ac,info,nl=nlaggr(me+1))
|
|
if (info == psb_success_) call psb_cdins(nzl,bcoo%ia,bcoo%ja,p%desc_ac,info)
|
|
if (info == psb_success_) call psb_cdasb(p%desc_ac,info)
|
|
if (info == psb_success_) call psb_glob_to_loc(bcoo%ia(1:nzl),p%desc_ac,info,iact='I')
|
|
if (info == psb_success_) call psb_glob_to_loc(bcoo%ja(1:nzl),p%desc_ac,info,iact='I')
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,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.'
|
|
call bcoo%set_nrows(p%desc_ac%get_local_rows())
|
|
call bcoo%set_ncols(p%desc_ac%get_local_cols())
|
|
call p%ac%mv_from(bcoo)
|
|
|
|
|
|
if (np>1) then
|
|
call am1%mv_to(tmpcoo)
|
|
nzl = tmpcoo%get_nzeros()
|
|
call psb_glob_to_loc(tmpcoo%ja(1:nzl),p%desc_ac,info,'I')
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_glob_to_loc')
|
|
goto 9999
|
|
end if
|
|
call am1%mv_from(tmpcoo)
|
|
endif
|
|
call am1%set_ncols(p%desc_ac%get_local_cols())
|
|
|
|
if (np>1) then
|
|
call am2%mv_to(tmpcoo)
|
|
nzl = tmpcoo%get_nzeros()
|
|
if (info == psb_success_) call psb_glob_to_loc(tmpcoo%ia(1:nzl),p%desc_ac,info,'I')
|
|
if(info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='Converting am2 to local')
|
|
goto 9999
|
|
end if
|
|
call am2%mv_from(tmpcoo)
|
|
end if
|
|
call am2%set_nrows(p%desc_ac%get_local_cols())
|
|
|
|
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) = bcoo%get_nzeros()
|
|
|
|
call psb_sum(ictxt,nzbr(1:np))
|
|
nzac = sum(nzbr)
|
|
if (info == psb_success_) call tmpcoo%allocate(ntaggr,ntaggr,nzac)
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
do ip=1,np
|
|
idisp(ip) = sum(nzbr(1:ip-1))
|
|
enddo
|
|
ndx = nzbr(me+1)
|
|
|
|
call mpi_allgatherv(bcoo%val,ndx,mpi_double_precision,tmpcoo%val,nzbr,idisp,&
|
|
& mpi_double_precision,icomm,info)
|
|
if (info == psb_success_) call mpi_allgatherv(bcoo%ia,ndx,mpi_integer,tmpcoo%ia,nzbr,idisp,&
|
|
& mpi_integer,icomm,info)
|
|
if (info == psb_success_) call mpi_allgatherv(bcoo%ja,ndx,mpi_integer,tmpcoo%ja,nzbr,idisp,&
|
|
& mpi_integer,icomm,info)
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err=' from mpi_allgatherv')
|
|
goto 9999
|
|
end if
|
|
|
|
call tmpcoo%fix(info)
|
|
call p%ac%mv_from(tmpcoo)
|
|
call bcoo%free()
|
|
if(info /= psb_success_) goto 9999
|
|
|
|
deallocate(nzbr,idisp,stat=info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
case default
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='invalid mld_coarse_mat_')
|
|
goto 9999
|
|
end select
|
|
|
|
|
|
|
|
call p%ac%cscnv(info,type='csr')
|
|
if(info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,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 == psb_success_) call am1%free()
|
|
if (info == psb_success_) call am2%free()
|
|
if(info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='sp_Free')
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!!$ if (.false.) then
|
|
!!$ i = 4
|
|
!!$ select case (i)
|
|
!!$ case(1)
|
|
!!$
|
|
!!$ call psb_transp(ptilde,rtilde,fmt='CSR')
|
|
!!$ call psb_spcnv(a,atmp,info,afmt='CSR')
|
|
!!$
|
|
!!$ am4%fida='COO'
|
|
!!$ am4%m=ncol-nrow
|
|
!!$ am4%k=ncol
|
|
!!$ call psb_sp_all(ncol,ntaggr,am4,ncol,info)
|
|
!!$
|
|
!!$ do i=1,ncol-nrow
|
|
!!$ am4%aspk(i) = dzero
|
|
!!$ am4%ia1(i) = i
|
|
!!$ am4%ia2(i) = nrow+i
|
|
!!$ end do
|
|
!!$ call psb_sp_setifld(nrow-ncol,psb_nnz_,am4,info)
|
|
!!$ call psb_spcnv(am4,info,afmt='CSR')
|
|
!!$ if (info == psb_success_) call psb_rwextd(ncol,atmp,info,b=am4)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$
|
|
!!$ case(2)
|
|
!!$
|
|
!!$ 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')
|
|
!!$ atmp2%aspk(:) = dzero
|
|
!!$ if (info == psb_success_) call psb_rwextd(ncol,atmp,info,b=atmp2)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$ if (info == psb_success_) call psb_sp_free(atmp2,info)
|
|
!!$
|
|
!!$ case (3)
|
|
!!$
|
|
!!$ ! We are doing the product only on the local
|
|
!!$ ! rows, the non-local contributions will be handled
|
|
!!$ ! through the global sum.
|
|
!!$ call psb_transp(ptilde,am4,fmt='CSR')
|
|
!!$ nrt = psb_sp_get_nrows(am4)
|
|
!!$ call psb_sp_clip(am4,rtilde,info,1,nrt,1,nrow)
|
|
!!$ call psb_spcnv(a,atmp,info,afmt='CSR')
|
|
!!$
|
|
!!$ case(4)
|
|
!!$
|
|
!!$ call psb_transp(ptilde,rtilde,fmt='COO')
|
|
!!$ do i=1, psb_sp_get_nnzeros(rtilde)
|
|
!!$ if (rtilde%ia2(i) > nrow) then
|
|
!!$ rtilde%aspk(i) = dzero
|
|
!!$ end if
|
|
!!$ end do
|
|
!!$ call psb_spcnv(rtilde,info,afmt='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')
|
|
!!$! !$ atmp2%aspk(:) = dzero
|
|
!!$ if (info == psb_success_) call psb_rwextd(ncol,atmp,info,b=atmp2)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$ if (info == psb_success_) call psb_sp_free(atmp2,info)
|
|
!!$
|
|
!!$ case default
|
|
!!$ write(0,*) 'Not building rtilde/atmp, this will blow up'
|
|
!!$ info = psb_err_from_subroutine_
|
|
!!$ goto 9999
|
|
!!$ end select
|
|
!!$
|
|
!!$ if (info == psb_success_) call psb_symbmm(rtilde,atmp,ra,info)
|
|
!!$ if (info == psb_success_) call psb_numbmm(rtilde,atmp,ra)
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ write(0,*) 'From symbmm 1:',info
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$ call psb_sp_scal(adinv,atmp,info)
|
|
!!$ if (info == psb_success_) call psb_symbmm(ra,atmp,rada,info)
|
|
!!$ if (info == psb_success_) call psb_numbmm(ra,atmp,rada)
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ write(0,*) 'From symbmm 2:',info
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$
|
|
!!$ 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)
|
|
!!$ else
|
|
!!$
|
|
!!$ 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 == psb_success_) call psb_rwextd(ncol,atmp,info,b=atmp2)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$ if (info == psb_success_) call psb_sp_free(atmp2,info)
|
|
!!$ ! This is to compute the transpose. It ONLY works if the
|
|
!!$ ! original A has a symmetric pattern.
|
|
!!$ call psb_transp(atmp,atmp2)
|
|
!!$ call psb_sp_clip(atmp2,atran,info,1,nrow,1,ncol)
|
|
!!$ call psb_sp_free(atmp2,info)
|
|
!!$ ! Now for the product.
|
|
!!$ call psb_symbmm(atran,ptilde,atp,info)
|
|
!!$ if (info == psb_success_) call psb_numbmm(atran,ptilde,atp)
|
|
!!$ call psb_sp_clone(atp,atmp2,info)
|
|
!!$ call psb_sp_scal(adinv,atmp2,info)
|
|
!!$ call psb_sphalo(atmp2,desc_a,am4,info,&
|
|
!!$ & colcnv=.false.,rowscale=.true.,outfmt='CSR ')
|
|
!!$ if (info == psb_success_) call psb_rwextd(ncol,atmp2,info,b=am4)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$
|
|
!!$ call psb_symbmm(atran,atmp2,atdatp,info)
|
|
!!$ call psb_numbmm(atran,atmp2,atdatp)
|
|
!!$ call psb_sp_free(atmp2,info)
|
|
!!$
|
|
!!$ call psb_spcnv(atp,info,afmt='coo')
|
|
!!$ if (info == psb_success_) call psb_spcnv(atp,info,afmt='csc')
|
|
!!$ if (info == psb_success_) call psb_spcnv(atdatp,info,afmt='coo')
|
|
!!$ if (info == psb_success_) call psb_spcnv(atdatp,info,afmt='csc')
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ write(0,*) 'Failed conversion to CSC'
|
|
!!$ end if
|
|
!!$
|
|
!!$ call csc_mat_col_prod(atp,atdatp,omp,info)
|
|
!!$ call csc_mat_col_prod(atdatp,atdatp,oden,info)
|
|
!!$ call psb_sum(ictxt,omp)
|
|
!!$ call psb_sum(ictxt,oden)
|
|
!!$
|
|
!!$
|
|
!!$ end if
|
|
!!$! !$ write(debug_unit,*) trim(name),' OMP_R :',omp
|
|
!!$! ! $ write(debug_unit,*) trim(name),' ODEN_R:',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 == psb_success_) call psb_spcnv(atmp2,info,afmt='csc')
|
|
!!$
|
|
!!$ do i=1, nrow
|
|
!!$ 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:nrow) = omf(1:nrow)*adinv(1:nrow)
|
|
!!$ call psb_halo(omf,desc_a,info)
|
|
!!$ 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(psb_err_internal_error_,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 == psb_success_) call psb_rwextd(ncol,am1,info,b=am4)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$
|
|
!!$ if(info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Halo of am1')
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$
|
|
!!$
|
|
!!$
|
|
!!$ call psb_symbmm(a,am1,am3,info)
|
|
!!$ if(info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,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 /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,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 == psb_success_) call psb_rwextd(ncol,am3,info,b=am4)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am4,info)
|
|
!!$
|
|
!!$ if(info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,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 == psb_success_) call psb_numbmm(am2,am3,b)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am3,info)
|
|
!!$ if (info == psb_success_) call psb_spcnv(b,info,afmt='coo',dupl=psb_dupl_add_)
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Build b = am2 x am3')
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$
|
|
!!$
|
|
!!$
|
|
!!$ select case(p%parms%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 == psb_success_) call psb_cdall(ictxt,p%desc_ac,info,nl=nlaggr(me+1))
|
|
!!$ if (info == psb_success_) call psb_cdins(nzl,p%ac%ia1,p%ac%ia2,p%desc_ac,info)
|
|
!!$ if (info == psb_success_) call psb_cdasb(p%desc_ac,info)
|
|
!!$ if (info == psb_success_) call psb_glob_to_loc(p%ac%ia1(1:nzl),p%desc_ac,info,iact='I')
|
|
!!$ if (info == psb_success_) call psb_glob_to_loc(p%ac%ia2(1:nzl),p%desc_ac,info,iact='I')
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,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=p%desc_ac%get_local_rows()
|
|
!!$ p%ac%k=p%desc_ac%get_local_cols()
|
|
!!$ p%ac%fida='COO'
|
|
!!$ p%ac%descra='GUN'
|
|
!!$
|
|
!!$ call psb_sp_free(b,info)
|
|
!!$ if (info == psb_success_) deallocate(nzbr,idisp,stat=info)
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,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 /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_glob_to_loc')
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$ endif
|
|
!!$ am1%k=p%desc_ac%get_local_cols()
|
|
!!$
|
|
!!$ if (np>1) then
|
|
!!$ call psb_spcnv(am2,info,afmt='coo',dupl=psb_dupl_add_)
|
|
!!$ nzl = am2%infoa(psb_nnz_)
|
|
!!$ if (info == psb_success_) call psb_glob_to_loc(am2%ia1(1:nzl),p%desc_ac,info,'I')
|
|
!!$ if (info == psb_success_) call psb_spcnv(am2,info,afmt='csr',dupl=psb_dupl_add_)
|
|
!!$ if(info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,name,a_err='Converting am2 to local')
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$ end if
|
|
!!$ am2%m=p%desc_ac%get_local_cols()
|
|
!!$
|
|
!!$ 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 == psb_success_) call psb_sp_all(ntaggr,ntaggr,p%ac,nzac,info)
|
|
!!$ if (info /= psb_success_) 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 == psb_success_) call mpi_allgatherv(b%ia1,ndx,mpi_integer,p%ac%ia1,nzbr,idisp,&
|
|
!!$ & mpi_integer,icomm,info)
|
|
!!$ if (info == psb_success_) call mpi_allgatherv(b%ia2,ndx,mpi_integer,p%ac%ia2,nzbr,idisp,&
|
|
!!$ & mpi_integer,icomm,info)
|
|
!!$
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_internal_error_,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 /= psb_success_) goto 9999
|
|
!!$ call psb_sp_free(b,info)
|
|
!!$ if(info /= psb_success_) goto 9999
|
|
!!$
|
|
!!$ deallocate(nzbr,idisp,stat=info)
|
|
!!$ if (info /= psb_success_) then
|
|
!!$ info = psb_err_alloc_dealloc_
|
|
!!$ call psb_errpush(info,name)
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$ case default
|
|
!!$ info = psb_err_internal_error_
|
|
!!$ 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 /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,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 == psb_success_) call psb_sp_free(am1,info)
|
|
!!$ if (info == psb_success_) call psb_sp_free(am2,info)
|
|
!!$ if(info /= psb_success_) then
|
|
!!$ call psb_errpush(psb_err_from_subroutine_,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_d_csc_sparse_mat), intent(in) :: a, b
|
|
real(psb_dpk_), intent(out) :: v(:)
|
|
integer, intent(out) :: info
|
|
|
|
integer :: i,j,k, nr, nc,iap,nra,ibp,nrb
|
|
|
|
info = psb_success_
|
|
nc = a%get_ncols()
|
|
if (nc /= b%get_ncols()) then
|
|
write(0,*) 'Matrices A and B should have same columns'
|
|
info = -1
|
|
return
|
|
end if
|
|
|
|
do j=1, nc
|
|
iap = a%icp(j)
|
|
nra = a%icp(j+1)-iap
|
|
ibp = b%icp(j)
|
|
nrb = b%icp(j+1)-ibp
|
|
v(j) = sparse_srtd_dot(nra,a%ia(iap:iap+nra-1),a%val(iap:iap+nra-1),&
|
|
& nrb,b%ia(ibp:ibp+nrb-1),b%val(ibp:ibp+nrb-1))
|
|
end do
|
|
|
|
end subroutine csc_mat_col_prod
|
|
|
|
|
|
subroutine csr_mat_row_prod(a,b,v,info)
|
|
type(psb_d_csr_sparse_mat), intent(in) :: a, b
|
|
real(psb_dpk_), intent(out) :: v(:)
|
|
integer, intent(out) :: info
|
|
|
|
integer :: i,j,k, nr, nc,iap,nca,ibp,ncb
|
|
|
|
info = psb_success_
|
|
nr = a%get_nrows()
|
|
if (nr /= b%get_nrows()) then
|
|
write(0,*) 'Matrices A and B should have same rows'
|
|
info = -1
|
|
return
|
|
end if
|
|
|
|
do j=1, nr
|
|
iap = a%irp(j)
|
|
nca = a%irp(j+1)-iap
|
|
ibp = b%irp(j)
|
|
ncb = b%irp(j+1)-ibp
|
|
v(j) = sparse_srtd_dot(nca,a%ja(iap:iap+nca-1),a%val(iap:iap+nca-1),&
|
|
& ncb,b%ja(ibp:ibp+ncb-1),b%val(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
|