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290 lines
9.5 KiB
Fortran
290 lines
9.5 KiB
Fortran
C
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C Parallel Sparse BLAS v2.0
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C (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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C Alfredo Buttari University of Rome Tor Vergata
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C
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C Redistribution and use in source and binary forms, with or without
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C modification, are permitted provided that the following conditions
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C are met:
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C 1. Redistributions of source code must retain the above copyright
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C notice, this list of conditions and the following disclaimer.
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C 2. Redistributions in binary form must reproduce the above copyright
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C notice, this list of conditions, and the following disclaimer in the
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C documentation and/or other materials provided with the distribution.
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C 3. The name of the PSBLAS group or the names of its contributors may
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C not be used to endorse or promote products derived from this
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C software without specific written permission.
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C
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C THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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C ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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C TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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C PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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C BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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C CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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C SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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C INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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C CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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C ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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C POSSIBILITY OF SUCH DAMAGE.
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C
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C
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c covert matrix from COO format to COO format
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c
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subroutine dcoco(trans,m,n,unitd,d,descra,ar,ia1,ia2,info,
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* p1,descrn,arn,ia1n,ia2n,infon,p2,larn,lia1n,
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* lia2n,aux,laux,ierror)
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use psb_const_mod
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use psb_spmat_type
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implicit none
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c .. scalar arguments ..
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integer larn, laux, lia1n, lia2n,
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+ m, n, ierror
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character trans,unitd
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c .. array arguments ..
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double precision ar(*), arn(*), d(*)
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integer aux(0:laux-1)
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integer ia1(*), ia2(*), info(*), ia1n(*), ia2n(*),
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* infon(*), p1(*), p2(*)
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character descra*11, descrn*11
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c .. local scalars ..
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integer ipx, ip1, ip2, check_flag, err_act
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integer nnz, k, i, j, nzl, iret
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integer elem_in, elem_out
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logical scale
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integer max_nnzero
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logical debug
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parameter (debug=.false.)
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c .. local arrays ..
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character*20 name
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integer int_val(5)
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c
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c ...common variables...
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c this flag describe the action to do
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c .. external subroutines ..
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external max_nnzero
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c .. executable statements ..
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c
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name = 'dcoco\0'
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ierror = 0
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call fcpsb_erractionsave(err_act)
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call psb_getifield(check_flag,psb_dupl_,infon,psb_ifasize_,ierror)
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if (trans.eq.'N') then
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scale = (unitd.eq.'L') ! meaningless
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p1(1) = 0
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p2(1) = 0
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call psb_getifield(nnz,psb_nnz_,info,psb_ifasize_,ierror)
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if (debug) then
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write(*,*) 'on entry to dcoco: nnz laux ',
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+ nnz,laux,larn,lia1n,lia2n
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endif
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if (laux.lt.nnz+2) then
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ierror = 60
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int_val(1) = 22
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int_val(2) = nnz+2
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int_val(3) = laux
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else if (larn.lt.nnz) then
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ierror = 60
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int_val(1) = 18
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int_val(2) = nnz+2
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int_val(3) = laux
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else if (lia1n.lt.nnz) then
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ierror = 60
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int_val(1) = 19
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int_val(2) = nnz+2
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int_val(3) = laux
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else if (lia2n.lt.m+1) then
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ierror = 60
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int_val(1) = 20
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int_val(2) = nnz+2
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int_val(3) = laux
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endif
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c
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c error handling
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c
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if(ierror.ne.0) then
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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end if
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if (descra(1:1).eq.'G') then
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c
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c sort COO data structure
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c
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if (debug) write(*,*)'first sort',nnz
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do k=1, nnz
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arn(k) = ar(k)
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ia1n(k) = ia1(k)
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ia2n(k) = ia2(k)
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enddo
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if (debug) write(*,*)'second sort'
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if ((lia2n.ge.(2*nnz+psb_ireg_flgs_+1))
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+ .and.(laux.ge.2*(2+nnz))) then
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c
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c prepare for smart regeneration
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c
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ipx = nnz+3
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do i=1, nnz
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aux(ipx+i-1) = i
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enddo
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ip1 = nnz+2
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infon(psb_upd_pnt_) = ip1
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ip2 = ip1+psb_ireg_flgs_
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ia2n(ip1+psb_ip2_) = ip2
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ia2n(ip1+psb_iflag_) = check_flag
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ia2n(ip1+psb_nnzt_) = nnz
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ia2n(ip1+psb_nnz_) = 0
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ia2n(ip1+psb_ichk_) = nnz+check_flag
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if (debug) write(0,*) 'build check :',ia2n(ip1+psb_nnzt_)
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c .... order with key ia1n ...
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call mrgsrt(nnz,ia1n,aux,iret)
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if (iret.eq.0) call reordvn3(nnz,arn,ia1n,ia2n,aux(ipx),aux)
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c .... order with key ia2n ...
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i = 1
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j = i
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do while (i.le.nnz)
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do while ((ia1n(j).eq.ia1n(i)).and.
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+ (j.le.nnz))
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j = j+1
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enddo
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nzl = j - i
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call mrgsrt(nzl,ia2n(i),aux,iret)
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if (iret.eq.0) call reordvn3(nzl,arn(i),ia1n(i),ia2n(i),
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+ aux(ipx+i-1),aux)
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i = j
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enddo
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ia2n(ip2+aux(ipx+1-1)-1) = 1
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c ... construct final COO representation...
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elem_out = 1
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c ... insert remaining element ...
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do elem_in = 2, nnz
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if ((ia1n(elem_in).eq.ia1n(elem_out)).and.
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+ (ia2n(elem_in).eq.ia2n(elem_out))) then
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if (check_flag.eq.psb_dupl_err_) then
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c ... error, there are duplicated elements ...
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ierror = 130
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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else if (check_flag.eq.psb_dupl_ovwrt_) then
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c ... insert only the first duplicated element ...
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ia2n(ip2+aux(ipx+elem_in-1)-1) = elem_out
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else if (check_flag.eq.psb_dupl_add_) then
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c ... add the duplicated element ...
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arn(elem_out) = arn(elem_out) + arn(elem_in)
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ia2n(ip2+aux(ipx+elem_in-1)-1) = elem_out
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end if
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else
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elem_out = elem_out + 1
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arn(elem_out) = arn(elem_in)
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ia2n(ip2+aux(ipx+elem_in-1)-1) = elem_out
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ia1n(elem_out) = ia1n(elem_in)
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ia2n(elem_out) = ia2n(elem_in)
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endif
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enddo
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else
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c .... order with key ia1n ...
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call mrgsrt(nnz,ia1n,aux,iret)
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if (iret.eq.0) call reordvn(nnz,arn,ia1n,ia2n,aux)
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c .... order with key ia2n ...
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i = 1
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j = i
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do while (i.le.nnz)
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do while ((ia1n(j).eq.ia1n(i)).and.
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+ (j.le.nnz))
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j = j+1
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enddo
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nzl = j - i
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call mrgsrt(nzl,ia2n(i),aux,iret)
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if (iret.eq.0) call reordvn(nzl,arn(i),ia1n(i),ia2n(i),
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+ aux)
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i = j
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enddo
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c ... construct final COO representation...
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elem_out = 1
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c ... insert remaining element ...
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do elem_in = 2, nnz
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if ((ia1n(elem_in).eq.ia1n(elem_out)).and.
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+ (ia2n(elem_in).eq.ia2n(elem_out))) then
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if (check_flag.eq.psb_dupl_err_) then
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c ... error, there are duplicated elements ...
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ierror = 130
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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else if (check_flag.eq.psb_dupl_ovwrt_) then
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c ... insert only the first duplicated element ...
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else if (check_flag.eq.psb_dupl_add_) then
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c ... add the duplicated element ...
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arn(elem_out) = arn(elem_out) + arn(elem_in)
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end if
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else
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elem_out = elem_out + 1
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arn(elem_out) = arn(elem_in)
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ia1n(elem_out) = ia1n(elem_in)
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ia2n(elem_out) = ia2n(elem_in)
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endif
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enddo
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endif
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infon(psb_nnz_) = elem_out
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infon(psb_srtd_) = psb_isrtdcoo_
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if (debug) write(*,*)'done rebuild COO',infon(1)
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else if (descra(1:1).eq.'S' .and. descra(2:2).eq.'U') then
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ierror = 3021
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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else if (descra(1:1).eq.'T' .and. descra(2:2).eq.'U') then
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ierror = 3021
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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else if (descra(1:1).eq.'T' .and. descra(2:2).eq.'L') then
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ierror = 3021
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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end if
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c
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else if (trans.ne.'N') then
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c
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c to do
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c
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ierror = 3021
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call fcpsb_errpush(ierror,name,int_val)
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goto 9999
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end if
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call fcpsb_erractionrestore(err_act)
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return
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9999 continue
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call fcpsb_erractionrestore(err_act)
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if ( err_act .ne. 0 ) then
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call fcpsb_serror()
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return
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endif
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return
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end
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