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!!$
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!!$
|
|
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|
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!!$ MD2P4
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|
|
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!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
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!!$ for
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$ Daniela di Serafino Second University of Naples
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!!$ Pasqua D'Ambra ICAR-CNR
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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 MD2P4 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 MD2P4 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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|
subroutine mld_zsp_renum(a,desc_a,blck,p,atmp,info)
|
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|
|
use psb_base_mod
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|
use psb_prec_mod, mld_protect_name => mld_zsp_renum
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implicit none
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! .. array Arguments ..
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type(psb_zspmat_type), intent(in) :: a,blck
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type(psb_zspmat_type), intent(inout) :: atmp
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type(psb_zbaseprc_type), intent(inout) :: p
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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character(len=20) :: name, ch_err
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integer nztota, nztotb, nztmp, nzl, nnr, ir, mglob, mtype, n_row, &
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& nrow_a,n_col, nhalo,lovr, ind, iind, pi,nr,ns,i,j,jj,k,kk
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|
integer ::ictxt,np,me, err_act
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|
integer, allocatable :: itmp(:), itmp2(:)
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complex(kind(1.d0)), allocatable :: ztmp(:)
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|
real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6, t7, t8
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if (psb_get_errstatus().ne.0) return
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info=0
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name='mld_zsp_renum'
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call psb_erractionsave(err_act)
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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!!!!!!!!!!!!!!!! CHANGE FOR NON-CSR A
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!
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! Renumbering type:
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! 1. Global column indices
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! (2. GPS band reduction disabled for the time being)
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if (p%iprcparm(iren_)==renum_glb_) then
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atmp%m = a%m + blck%m
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atmp%k = a%k
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atmp%fida='CSR'
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atmp%descra = 'GUN'
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! This is the renumbering coherent with global indices..
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|
mglob = psb_cd_get_global_rows(desc_a)
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|
!
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! Remember: we have switched IA1=COLS and IA2=ROWS
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|
|
! Now identify the set of distinct local column indices
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|
!
|
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|
|
nnr = p%desc_data%matrix_data(psb_n_row_)
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allocate(p%perm(nnr),p%invperm(nnr),itmp2(nnr),stat=info)
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|
if (info /= 0) then
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|
call psb_errpush(4010,name,a_err='Allocate')
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|
goto 9999
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|
end if
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|
do k=1,nnr
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|
itmp2(k) = p%desc_data%loc_to_glob(k)
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|
enddo
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|
|
!
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|
! We want: NEW(I) = OLD(PERM(I))
|
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|
|
!
|
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|
|
call psb_msort(itmp2(1:nnr),ix=p%perm)
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|
|
do k=1, nnr
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p%invperm(p%perm(k)) = k
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enddo
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|
|
t3 = psb_wtime()
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|
|
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|
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|
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|
|
! Build ATMP with new numbering.
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|
|
nztmp=size(atmp%aspk)
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|
|
|
allocate(itmp(max(8,atmp%m+2,nztmp+2)),ztmp(atmp%m),stat=info)
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|
|
if (info /= 0) then
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|
|
call psb_errpush(4010,name,a_err='Allocate')
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|
goto 9999
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|
end if
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|
j = 1
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|
|
atmp%ia2(1) = 1
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|
do i=1, atmp%m
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|
|
ir = p%perm(i)
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|
|
|
|
if (ir <= a%m ) then
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|
nzl = a%ia2(ir+1) - a%ia2(ir)
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|
|
if (nzl > size(ztmp)) then
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|
|
call psb_realloc(nzl,ztmp,info)
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|
|
|
|
if(info/=0) then
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|
info=4010
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|
|
ch_err='psb_realloc'
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|
|
|
call psb_errpush(info,name,a_err=ch_err)
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|
|
goto 9999
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|
end if
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endif
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jj = a%ia2(ir)
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k=0
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do kk=1, nzl
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if (a%ia1(jj+kk-1)<=atmp%m) then
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|
k = k + 1
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ztmp(k) = a%aspk(jj+kk-1)
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atmp%ia1(j+k-1) = p%invperm(a%ia1(jj+kk-1))
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endif
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enddo
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|
call psb_msort(atmp%ia1(j:j+k-1),ix=itmp2)
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|
|
do kk=1,k
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|
atmp%aspk(j+kk-1) = ztmp(itmp2(kk))
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|
enddo
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|
else if (ir <= atmp%m ) then
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|
ir = ir - a%m
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|
nzl = blck%ia2(ir+1) - blck%ia2(ir)
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|
|
if (nzl > size(ztmp)) then
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|
|
|
call psb_realloc(nzl,ztmp,info)
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|
|
if(info/=0) then
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|
info=4010
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|
|
ch_err='psb_realloc'
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|
|
call psb_errpush(info,name,a_err=ch_err)
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|
|
|
|
goto 9999
|
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|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
jj = blck%ia2(ir)
|
|
|
|
|
k=0
|
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|
|
|
do kk=1, nzl
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|
|
|
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 psb_msort(atmp%ia1(j:j+k-1),ix=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 = psb_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 = psb_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 psb_msort(atmp%ia1(j:j+k-1),ix=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 psb_msort(atmp%ia1(j:j+k-1),ix=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 = psb_wtime()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
deallocate(itmp,itmp2,ztmp)
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
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.psb_act_abort_) then
|
|
|
|
|
call psb_error()
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine gps_reduction
|
|
|
|
|
|
|
|
|
|
end subroutine mld_zsp_renum
|
