From 1dcf84c1c86bc21917b6dba1de24b79ed9db87b5 Mon Sep 17 00:00:00 2001 From: Salvatore Filippone Date: Wed, 17 Jan 2007 15:08:10 +0000 Subject: [PATCH] Moving files from PSBLAS2 to MLD2P4. --- psb_zsp_renum.f90 | 458 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 458 insertions(+) create mode 100644 psb_zsp_renum.f90 diff --git a/psb_zsp_renum.f90 b/psb_zsp_renum.f90 new file mode 100644 index 00000000..7cdf5f83 --- /dev/null +++ b/psb_zsp_renum.f90 @@ -0,0 +1,458 @@ +!!$ +!!$ +!!$ 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_zsp_renum(a,desc_a,blck,p,atmp,info) + use psb_base_mod + use psb_prec_type + implicit none + + ! .. array Arguments .. + type(psb_zspmat_type), intent(in) :: a,blck + type(psb_zspmat_type), intent(inout) :: atmp + type(psb_zbaseprc_type), intent(inout) :: p + type(psb_desc_type), intent(in) :: desc_a + integer, intent(out) :: info + + + character(len=20) :: name, ch_err + integer nztota, nztotb, nztmp, nzl, nnr, ir, mglob, mtype, n_row, & + & nrow_a,n_col, nhalo,lovr, ind, iind, pi,nr,ns,i,j,jj,k,kk + integer ::ictxt,np,me, err_act + integer, allocatable :: itmp(:), itmp2(:) + complex(kind(1.d0)), allocatable :: ztmp(:) + real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6,mpi_wtime, t7, t8 + external mpi_wtime + + if (psb_get_errstatus().ne.0) return + info=0 + name='apply_renum' + call psb_erractionsave(err_act) + + ictxt=psb_cd_get_context(desc_a) + call psb_info(ictxt, me, np) + +!!!!!!!!!!!!!!!! CHANGE FOR NON-CSR A + ! + ! Renumbering type: + ! 1. Global column indices + ! (2. GPS band reduction disabled for the time being) + + if (p%iprcparm(iren_)==renum_glb_) then + atmp%m = a%m + blck%m + atmp%k = a%k + atmp%fida='CSR' + atmp%descra = 'GUN' + + ! This is the renumbering coherent with global indices.. + mglob = psb_cd_get_global_rows(desc_a) + ! + ! Remember: we have switched IA1=COLS and IA2=ROWS + ! Now identify the set of distinct local column indices + ! + + nnr = p%desc_data%matrix_data(psb_n_row_) + allocate(p%perm(nnr),p%invperm(nnr),itmp2(nnr),stat=info) + if (info /= 0) then + call psb_errpush(4010,name,a_err='Allocate') + goto 9999 + end if + + do k=1,nnr + itmp2(k) = p%desc_data%loc_to_glob(k) + enddo + ! + ! We want: NEW(I) = OLD(PERM(I)) + ! + call isrx(nnr,itmp2,p%perm) + + do k=1, nnr + p%invperm(p%perm(k)) = k + enddo + t3 = mpi_wtime() + + ! Build ATMP with new numbering. + nztmp=size(atmp%aspk) + allocate(itmp(max(8,atmp%m+2,nztmp+2)),ztmp(atmp%m),stat=info) + if (info /= 0) then + call psb_errpush(4010,name,a_err='Allocate') + goto 9999 + end if + + j = 1 + atmp%ia2(1) = 1 + do i=1, atmp%m + ir = p%perm(i) + + if (ir <= a%m ) then + + nzl = a%ia2(ir+1) - a%ia2(ir) + if (nzl > size(ztmp)) then + call psb_realloc(nzl,ztmp,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + endif + jj = a%ia2(ir) + k=0 + do kk=1, nzl + if (a%ia1(jj+kk-1)<=atmp%m) then + k = k + 1 + ztmp(k) = a%aspk(jj+kk-1) + atmp%ia1(j+k-1) = p%invperm(a%ia1(jj+kk-1)) + endif + enddo + call isrx(k,atmp%ia1(j:j+k-1),itmp2) + do kk=1,k + atmp%aspk(j+kk-1) = ztmp(itmp2(kk)) + enddo + + else if (ir <= atmp%m ) then + + ir = ir - a%m + nzl = blck%ia2(ir+1) - blck%ia2(ir) + if (nzl > size(ztmp)) then + call psb_realloc(nzl,ztmp,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + endif + jj = blck%ia2(ir) + k=0 + do kk=1, nzl + if (blck%ia1(jj+kk-1)<=atmp%m) then + k = k + 1 + ztmp(k) = blck%aspk(jj+kk-1) + atmp%ia1(j+k-1) = p%invperm(blck%ia1(jj+kk-1)) + endif + enddo + call isrx(k,atmp%ia1(j:j+k-1),itmp2) + do kk=1,k + atmp%aspk(j+kk-1) = ztmp(itmp2(kk)) + enddo + + else + write(0,*) 'Row index error 1 :',i,ir + endif + + j = j + k + atmp%ia2(i+1) = j + + enddo + + t4 = mpi_wtime() + + + deallocate(itmp,itmp2,ztmp) + + else if (p%iprcparm(iren_)==renum_gps_) then + + atmp%m = a%m + blck%m + atmp%k = a%k + atmp%fida='CSR' + atmp%descra = 'GUN' + do i=1, a%m + atmp%ia2(i) = a%ia2(i) + do j= a%ia2(i), a%ia2(i+1)-1 + atmp%ia1(j) = a%ia1(j) + enddo + enddo + atmp%ia2(a%m+1) = a%ia2(a%m+1) + nztota = atmp%ia2(a%m+1) -1 + if (blck%m>0) then + do i=1, blck%m + atmp%ia2(a%m+i) = nztota+blck%ia2(i) + do j= blck%ia2(i), blck%ia2(i+1)-1 + atmp%ia1(nztota+j) = blck%ia1(j) + enddo + enddo + atmp%ia2(atmp%m+1) = nztota+blck%ia2(blck%m+1) + endif + nztmp = atmp%ia2(atmp%m+1) - 1 + + + ! This is a renumbering with Gibbs-Poole-Stockmeyer + ! band reduction. Switched off for now. To be fixed, + ! gps_reduction should get p%perm. + + ! write(0,*) me,' Renumbering: realloc perms',atmp%m + call psb_realloc(atmp%m,p%perm,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + + call psb_realloc(atmp%m,p%invperm,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + + allocate(itmp(max(8,atmp%m+2,nztmp+2)),stat=info) + if (info /= 0) then + call psb_errpush(4010,name,a_err='Allocate') + goto 9999 + end if + + itmp(1:8) = 0 + ! write(0,*) me,' Renumbering: Calling Metis' + + ! write(0,*) size(p%av(u_pr_)%pl),size(p%av(l_pr_)%pr) + call gps_reduction(atmp%m,atmp%ia2,atmp%ia1,p%perm,p%invperm,info) + if(info/=0) then + info=4010 + ch_err='gps_reduction' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + + ! write(0,*) me,' Renumbering: Done GPS' + ! call psb_barrier(ictxt) + do i=1, atmp%m + if (p%perm(i) /= i) then + write(0,*) me,' permutation is not identity ' + exit + endif + enddo + + + + do k=1, nnr + p%invperm(p%perm(k)) = k + enddo + t3 = mpi_wtime() + + ! Build ATMP with new numbering. + + allocate(itmp2(max(8,atmp%m+2,nztmp+2)),ztmp(atmp%m),stat=info) + if (info /= 0) then + call psb_errpush(4010,name,a_err='Allocate') + goto 9999 + end if + + j = 1 + atmp%ia2(1) = 1 + do i=1, atmp%m + ir = p%perm(i) + + if (ir <= a%m ) then + + nzl = a%ia2(ir+1) - a%ia2(ir) + if (nzl > size(ztmp)) then + call psb_realloc(nzl,ztmp,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + endif + jj = a%ia2(ir) + k=0 + do kk=1, nzl + if (a%ia1(jj+kk-1)<=atmp%m) then + k = k + 1 + ztmp(k) = a%aspk(jj+kk-1) + atmp%ia1(j+k-1) = p%invperm(a%ia1(jj+kk-1)) + endif + enddo + call isrx(k,atmp%ia1(j:j+k-1),itmp2) + do kk=1,k + atmp%aspk(j+kk-1) = ztmp(itmp2(kk)) + enddo + + else if (ir <= atmp%m ) then + + ir = ir - a%m + nzl = blck%ia2(ir+1) - blck%ia2(ir) + if (nzl > size(ztmp)) then + call psb_realloc(nzl,ztmp,info) + if(info/=0) then + info=4010 + ch_err='psb_realloc' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + endif + jj = blck%ia2(ir) + k=0 + do kk=1, nzl + if (blck%ia1(jj+kk-1)<=atmp%m) then + k = k + 1 + ztmp(k) = blck%aspk(jj+kk-1) + atmp%ia1(j+k-1) = p%invperm(blck%ia1(jj+kk-1)) + endif + enddo + call isrx(k,atmp%ia1(j:j+k-1),itmp2) + do kk=1,k + atmp%aspk(j+kk-1) = ztmp(itmp2(kk)) + enddo + + else + write(0,*) 'Row index error 1 :',i,ir + endif + + j = j + k + atmp%ia2(i+1) = j + + enddo + + t4 = mpi_wtime() + + + + deallocate(itmp,itmp2,ztmp) + + end if + + 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 + +contains + + + subroutine gps_reduction(m,ia,ja,perm,iperm,info) + integer i,j,dgConn,Npnt,m + integer n,idpth,ideg,ibw2,ipf2 + integer,dimension(:) :: perm,iperm,ia,ja + integer, intent(out) :: info + + integer,dimension(:,:),allocatable::NDstk + integer,dimension(:),allocatable::iOld,renum,ndeg,lvl,lvls1,lvls2,ccstor + + character(len=20) :: name, ch_err + + if(psb_get_errstatus().ne.0) return + info=0 + name='gps_reduction' + call psb_erractionsave(err_act) + + + !--- Calcolo il massimo grado di connettivita'. + npnt = m + write(6,*) ' GPS su ',npnt + dgConn=0 + do i=1,m + dgconn = max(dgconn,(ia(i+1)-ia(i))) + enddo + !--- Il max valore di connettivita' e "dgConn" + + !--- Valori della common + n=Npnt !--- Numero di righe + iDeg=dgConn !--- Massima connettivita' + ! iDpth= !--- Numero di livelli non serve settarlo + + allocate(NDstk(Npnt,dgConn),stat=info) + if (info/=0) then + info=4000 + call psb_errpush(info,name) + goto 9999 + else + write(0,*) 'gps_reduction first alloc OK' + endif + allocate(iOld(Npnt),renum(Npnt+1),ndeg(Npnt),lvl(Npnt),lvls1(Npnt),& + &lvls2(Npnt),ccstor(Npnt),stat=info) + if (info/=0) then + info=4000 + call psb_errpush(info,name) + goto 9999 + else + write(0,*) 'gps_reduction 2nd alloc OK' + endif + + !--- Prepariamo il grafo della matrice + Ndstk(:,:)=0 + do i=1,Npnt + k=0 + do j = ia(i),ia(i+1) - 1 + if ((1<=ja(j)).and.( ja( j ) /= i ).and.(ja(j)<=npnt)) then + k = k+1 + Ndstk(i,k)=ja(j) + endif + enddo + ndeg(i)=k + enddo + + !--- Numerazione. + do i=1,Npnt + iOld(i)=i + enddo + write(0,*) 'gps_red : Preparation done' + !--- + !--- Chiamiamo funzione reduce. + call psb_gps_reduce(Ndstk,Npnt,iOld,renum,ndeg,lvl,lvls1, lvls2,ccstor,& + & ibw2,ipf2,n,idpth,ideg) + write(0,*) 'gps_red : Done reduce' + !--- Permutazione + perm(1:Npnt)=renum(1:Npnt) + !--- Inversa permutazione + do i=1,Npnt + iperm(perm(i))=i + enddo + !--- Puliamo tutto. + deallocate(NDstk,iOld,renum,ndeg,lvl,lvls1,lvls2,ccstor) + + 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 gps_reduction + +end subroutine psb_zsp_renum