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amg4psblas/mlprec/mld_cumf_bld.f90

139 lines
5.2 KiB
Fortran

mld2p4: config/pac.m4 configure krylov/Makefile krylov/psb_prec_mod.F90 mlprec/Makefile mlprec/mld_basep_bld_mod.f90 mlprec/mld_caggrmap_bld.f90 mlprec/mld_caggrmat_asb.f90 mlprec/mld_caggrmat_raw_asb.F90 mlprec/mld_caggrmat_smth_asb.F90 mlprec/mld_cas_aply.f90 mlprec/mld_cas_bld.f90 mlprec/mld_cbaseprec_aply.f90 mlprec/mld_cbaseprec_bld.f90 mlprec/mld_cdiag_bld.f90 mlprec/mld_cfact_bld.f90 mlprec/mld_cilu0_fact.f90 mlprec/mld_cilu_bld.f90 mlprec/mld_ciluk_fact.f90 mlprec/mld_cilut_fact.f90 mlprec/mld_cmlprec_aply.f90 mlprec/mld_cmlprec_bld.f90 mlprec/mld_cprec_aply.f90 mlprec/mld_cprecbld.f90 mlprec/mld_cprecfree.f90 mlprec/mld_cprecinit.f90 mlprec/mld_cprecset.f90 mlprec/mld_cslu_bld.f90 mlprec/mld_cslu_interface.c mlprec/mld_cslud_bld.f90 mlprec/mld_cslud_interface.c mlprec/mld_csp_renum.f90 mlprec/mld_csub_aply.f90 mlprec/mld_csub_solve.f90 mlprec/mld_cumf_bld.f90 mlprec/mld_cumf_interface.c mlprec/mld_dmlprec_bld.f90 mlprec/mld_dprecset.f90 mlprec/mld_inner_mod.f90 mlprec/mld_prec_mod.f90 mlprec/mld_prec_type.f90 mlprec/mld_saggrmap_bld.f90 mlprec/mld_saggrmat_asb.f90 mlprec/mld_saggrmat_raw_asb.F90 mlprec/mld_saggrmat_smth_asb.F90 mlprec/mld_sas_aply.f90 mlprec/mld_sas_bld.f90 mlprec/mld_sbaseprec_aply.f90 mlprec/mld_sbaseprec_bld.f90 mlprec/mld_sdiag_bld.f90 mlprec/mld_sfact_bld.f90 mlprec/mld_silu0_fact.f90 mlprec/mld_silu_bld.f90 mlprec/mld_siluk_fact.f90 mlprec/mld_silut_fact.f90 mlprec/mld_smlprec_aply.f90 mlprec/mld_smlprec_bld.f90 mlprec/mld_sprec_aply.f90 mlprec/mld_sprecbld.f90 mlprec/mld_sprecfree.f90 mlprec/mld_sprecinit.f90 mlprec/mld_sprecset.f90 mlprec/mld_sslu_bld.f90 mlprec/mld_sslu_interface.c mlprec/mld_sslud_bld.f90 mlprec/mld_sslud_interface.c mlprec/mld_ssp_renum.f90 mlprec/mld_ssub_aply.f90 mlprec/mld_ssub_solve.f90 mlprec/mld_sumf_bld.f90 mlprec/mld_sumf_interface.c mlprec/mld_zilu0_fact.f90 mlprec/mld_zmlprec_aply.f90 mlprec/mld_zmlprec_bld.f90 mlprec/mld_zprecset.f90 test/fileread/Makefile test/fileread/cf_sample.f90 test/fileread/data_input.f90 test/fileread/df_sample.f90 test/fileread/runs/cfs.inp test/fileread/runs/dfs.inp test/fileread/runs/sfs.inp test/fileread/runs/zfs.inp test/fileread/sf_sample.f90 test/fileread/zf_sample.f90 test/pargen/Makefile test/pargen/runs/ppde.inp test/pargen/spde.f90 Merged single precision version.
17 years ago
!!$
!!$
!!$ MLD2P4 version 1.0
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 2.2)
!!$
!!$ (C) Copyright 2008
!!$
!!$ 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_cumf_bld.f90
!
! Subroutine: mld_cumf_bld
! Version: complex
!
! This routine computes the LU factorization of the local part of the matrix
! stored into a, by using UMFPACK.
!
! The matrix to be factorized is
! - either a submatrix of the distributed matrix corresponding to any level
! of a multilevel preconditioner, and its factorization is used to build
! the 'base preconditioner' corresponding to that level,
! - or a copy of the whole matrix corresponding to the coarsest level of
! a multilevel preconditioner, and its factorization is used to build
! the 'base preconditioner' corresponding to the coarsest level.
!
! The data structures allocated by UMFPACK to compute the symbolic and the
! numeric factorization are pointed by p%iprcparm(mld_umf_symptr_) and
! p%iprcparm(mld_umf_numptr_).
!
!
! Arguments:
! a - type(psb_zspmat_type), input/output.
! The sparse matrix structure containing the local submatrix
! to be factorized. Note that a is intent(inout), and not only
! intent(in), since the row and column indices of the matrix
! stored in a are shifted by -1, and then again by +1, by the
! routine mld_cumf_fact, which is an interface to the UMFPACK
! C code performing the factorization.
! desc_a - type(psb_desc_type), input.
! The communication descriptor associated to a.
! p - type(mld_cbaseprc_type), input/output.
! The 'base preconditioner' data structure containing the pointers,
! p%iprcparm(mld_umf_symptr_) and p%iprcparm(mld_umf_numptr_),
! to the data structures used by UMFPACK for computing the LU
! factorization.
! info - integer, output.
! Error code.
!
subroutine mld_cumf_bld(a,desc_a,p,info)
use psb_base_mod
use mld_inner_mod, mld_protect_name => mld_cumf_bld
implicit none
! Arguments
type(psb_dspmat_type), intent(inout) :: a
type(psb_desc_type), intent(in) :: desc_a
type(mld_cbaseprc_type), intent(inout) :: p
integer, intent(out) :: info
! Local variables
integer :: nzt,ictxt,me,np,err_act
integer :: i_err(5)
character(len=20) :: name
info=0
name='mld_cumf_bld'
call psb_erractionsave(err_act)
ictxt = psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
if (psb_toupper(a%fida) /= 'CSC') then
info=135
call psb_errpush(info,name,a_err=a%fida)
goto 9999
endif
nzt = psb_sp_get_nnzeros(a)
!
! Compute the LU factorization
!
call mld_cumf_fact(a%m,nzt,&
& a%aspk,a%ia1,a%ia2,&
& p%iprcparm(mld_umf_symptr_),p%iprcparm(mld_umf_numptr_),info)
if (info /= 0) then
i_err(1) = info
info=4110
call psb_errpush(info,name,a_err='mld_umf_fact',i_err=i_err)
goto 9999
end if
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 mld_cumf_bld