!!$ !!$ !!$ MD2P4 !!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS !!$ for !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari University of Rome Tor Vergata !!$ Daniela di Serafino Second University of Naples !!$ Pasqua D'Ambra ICAR-CNR !!$ !!$ 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 MD2P4 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 MD2P4 GROUP OR ITS CONTRIBUTORS !!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR !!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF !!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS !!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN !!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) !!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE !!$ POSSIBILITY OF SUCH DAMAGE. !!$ !!$ subroutine psb_dbaseprc_bld(a,desc_a,p,info,upd) use psb_base_mod use psb_prec_type Implicit None type(psb_dspmat_type), target :: a type(psb_desc_type), intent(in), target :: desc_a type(psb_dbaseprc_type),intent(inout) :: p integer, intent(out) :: info character, intent(in), optional :: upd interface psb_diagsc_bld subroutine psb_ddiagsc_bld(a,desc_data,p,upd,info) use psb_base_mod use psb_prec_type integer, intent(out) :: info type(psb_dspmat_type), intent(in), target :: a type(psb_desc_type),intent(in) :: desc_data type(psb_dbaseprc_type), intent(inout) :: p character, intent(in) :: upd end subroutine psb_ddiagsc_bld end interface interface psb_ilu_bld subroutine psb_dilu_bld(a,desc_data,p,upd,info) use psb_base_mod use psb_prec_type integer, intent(out) :: info type(psb_dspmat_type), intent(in), target :: a type(psb_desc_type),intent(in) :: desc_data type(psb_dbaseprc_type), intent(inout) :: p character, intent(in) :: upd end subroutine psb_dilu_bld end interface interface psb_slu_bld subroutine psb_dslu_bld(a,desc_a,p,info) use psb_base_mod use psb_prec_type implicit none type(psb_dspmat_type), intent(inout) :: a type(psb_desc_type), intent(in) :: desc_a type(psb_dbaseprc_type), intent(inout) :: p integer, intent(out) :: info end subroutine psb_dslu_bld end interface interface psb_umf_bld subroutine psb_dumf_bld(a,desc_a,p,info) use psb_base_mod use psb_prec_type implicit none type(psb_dspmat_type), intent(inout) :: a type(psb_desc_type), intent(in) :: desc_a type(psb_dbaseprc_type), intent(inout) :: p integer, intent(out) :: info end subroutine psb_dumf_bld end interface ! Local scalars Integer :: err, nnzero, n_row, n_col,I,j,k,ictxt,& & me,mycol,np,npcol,mglob,lw, mtype, nrg, nzg, err_act real(kind(1.d0)) :: temp, real_err(5) real(kind(1.d0)),pointer :: gd(:), work(:) integer :: int_err(5) character :: iupd logical, parameter :: debug=.false. integer,parameter :: iroot=0,iout=60,ilout=40 character(len=20) :: name, ch_err if(psb_get_errstatus().ne.0) return info=0 err=0 call psb_erractionsave(err_act) name = 'psb_baseprc_bld' if (debug) write(0,*) 'Entering baseprc_bld' info = 0 int_err(1) = 0 ictxt = psb_cd_get_context(desc_a) n_row = psb_cd_get_local_rows(desc_a) n_col = psb_cd_get_local_cols(desc_a) mglob = psb_cd_get_global_rows(desc_a) if (debug) write(0,*) 'Preconditioner Blacs_gridinfo' call psb_info(ictxt, me, np) if (present(upd)) then if (debug) write(0,*) 'UPD ', upd if ((UPD.eq.'F').or.(UPD.eq.'T')) then IUPD=UPD else IUPD='F' endif else IUPD='F' endif ! ! Should add check to ensure all procs have the same... ! ! ALso should define symbolic names for the preconditioners. ! call psb_check_def(p%iprcparm(p_type_),'base_prec',& & diagsc_,is_legal_base_prec) !!$ allocate(p%desc_data,stat=info) !!$ if (info /= 0) then !!$ call psb_errpush(4010,name,a_err='Allocate') !!$ goto 9999 !!$ end if call psb_nullify_desc(p%desc_data) select case(p%iprcparm(p_type_)) case (noprec_) ! Do nothing. call psb_cdcpy(desc_a,p%desc_data,info) if(info /= 0) then info=4010 ch_err='psb_cdcpy' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if case (diagsc_) call psb_diagsc_bld(a,desc_a,p,iupd,info) if(debug) write(0,*)me,': out of psb_diagsc_bld' if(info /= 0) then info=4010 ch_err='psb_diagsc_bld' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if case (bja_,asm_) call psb_check_def(p%iprcparm(n_ovr_),'overlap',& & 0,is_legal_n_ovr) call psb_check_def(p%iprcparm(restr_),'restriction',& & psb_halo_,is_legal_restrict) call psb_check_def(p%iprcparm(prol_),'prolongator',& & psb_none_,is_legal_prolong) call psb_check_def(p%iprcparm(iren_),'renumbering',& & renum_none_,is_legal_renum) call psb_check_def(p%iprcparm(f_type_),'fact',& & f_ilu_n_,is_legal_ml_fact) if (debug) write(0,*)me, ': Calling PSB_ILU_BLD' if (debug) call psb_barrier(ictxt) select case(p%iprcparm(f_type_)) case(f_ilu_n_,f_ilu_e_) call psb_ilu_bld(a,desc_a,p,iupd,info) if(debug) write(0,*)me,': out of psb_ilu_bld' if (debug) call psb_barrier(ictxt) if(info /= 0) then info=4010 ch_err='psb_ilu_bld' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if case(f_slu_) if(debug) write(0,*)me,': calling slu_bld' call psb_slu_bld(a,desc_a,p,info) if(info /= 0) then info=4010 ch_err='slu_bld' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if case(f_umf_) if(debug) write(0,*)me,': calling umf_bld' call psb_umf_bld(a,desc_a,p,info) if(debug) write(0,*)me,': Done umf_bld ',info if (info /= 0) then info=4010 ch_err='umf_bld' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if case(f_none_) write(0,*) 'Fact=None in BASEPRC_BLD Bja/ASM??' info=4010 ch_err='Inconsistent prec f_none_' call psb_errpush(info,name,a_err=ch_err) goto 9999 case default write(0,*) 'Unknown factor type in baseprc_bld bja/asm: ',& &p%iprcparm(f_type_) info=4010 ch_err='Unknown f_type_' call psb_errpush(info,name,a_err=ch_err) goto 9999 end select case default info=4010 ch_err='Unknown p_type_' call psb_errpush(info,name,a_err=ch_err) goto 9999 end select p%base_a => a p%base_desc => desc_a call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.act_abort) then call psb_error() return end if return end subroutine psb_dbaseprc_bld