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161 lines
4.7 KiB
Fortran
161 lines
4.7 KiB
Fortran
!!$
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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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!!$
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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 PSBLAS 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 PSBLAS 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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! File: psb_dfixcoo.f90
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! Subroutine:
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! Parameters:
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Subroutine psb_dfixcoo(A,INFO,idir)
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use psb_spmat_type
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use psb_const_mod
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use psb_string_mod
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implicit none
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!....Parameters...
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Type(psb_dspmat_type), intent(inout) :: A
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Integer, intent(out) :: info
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integer, intent(in), optional :: idir
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integer, allocatable :: iaux(:)
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!locals
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Integer :: nza, nzl,iret,idir_
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integer :: i,j, irw, icl
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logical, parameter :: debug=.false.
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info = 0
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if(debug) write(0,*)'fixcoo: ',size(a%ia1),size(a%ia2)
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if (toupper(a%fida) /= 'COO') then
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write(0,*) 'Fixcoo Invalid input ',a%fida
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info = -1
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return
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end if
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if (present(idir)) then
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idir_ = idir
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else
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idir_ = 0
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endif
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nza = a%infoa(psb_nnz_)
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if (nza < 2) return
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allocate(iaux(nza+2),stat=info)
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if (info /= 0) return
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select case(idir_)
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case(0) ! Row major order
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call mrgsrt(nza,a%ia1(1),iaux(1),iret)
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if (iret.eq.0) call reordvn(nza,a%aspk(1),a%ia1(1),a%ia2(1),iaux(1))
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i = 1
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j = i
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do while (i.le.nza)
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do while ((a%ia1(j).eq.a%ia1(i)))
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j = j+1
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if (j > nza) exit
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enddo
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nzl = j - i
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call mrgsrt(nzl,a%ia2(i),iaux(1),iret)
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if (iret.eq.0) &
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& call reordvn(nzl,a%aspk(i),a%ia1(i),a%ia2(i),iaux(1))
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i = j
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enddo
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i = 1
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irw = a%ia1(i)
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icl = a%ia2(i)
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j = 1
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do
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j = j + 1
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if (j > nza) exit
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if ((a%ia1(j) == irw).and.(a%ia2(j) == icl)) then
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a%aspk(i) = a%aspk(i) + a%aspk(j)
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else
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i = i+1
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a%aspk(i) = a%aspk(j)
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a%ia1(i) = a%ia1(j)
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a%ia2(i) = a%ia2(j)
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irw = a%ia1(i)
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icl = a%ia2(i)
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endif
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enddo
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a%infoa(psb_nnz_) = i
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a%infoa(psb_srtd_) = psb_isrtdcoo_
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if(debug) write(0,*)'FIXCOO: end second loop'
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case(1) ! Col major order
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call mrgsrt(nza,a%ia2(1),iaux(1),iret)
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if (iret.eq.0) call reordvn(nza,a%aspk(1),a%ia1(1),a%ia2(1),iaux(1))
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i = 1
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j = i
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do while (i.le.nza)
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do while ((a%ia2(j).eq.a%ia2(i)))
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j = j+1
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if (j > nza) exit
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enddo
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nzl = j - i
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call mrgsrt(nzl,a%ia1(i),iaux(1),iret)
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if (iret.eq.0) &
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& call reordvn(nzl,a%aspk(i),a%ia1(i),a%ia2(i),iaux(1))
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i = j
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enddo
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i = 1
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irw = a%ia1(i)
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icl = a%ia2(i)
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j = 1
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do
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j = j + 1
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if (j > nza) exit
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if ((a%ia1(j) == irw).and.(a%ia2(j) == icl)) then
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a%aspk(i) = a%aspk(i) + a%aspk(j)
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else
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i = i+1
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a%aspk(i) = a%aspk(j)
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a%ia1(i) = a%ia1(j)
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a%ia2(i) = a%ia2(j)
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irw = a%ia1(i)
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icl = a%ia2(i)
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endif
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enddo
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a%infoa(psb_nnz_) = i
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a%infoa(psb_srtd_) = psb_isrtdcoo_
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if(debug) write(0,*)'FIXCOO: end second loop'
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case default
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write(0,*) 'Fixcoo: unknown direction ',idir_
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end select
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a%infoa(psb_upd_) = psb_upd_srch_
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deallocate(iaux)
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return
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end Subroutine psb_dfixcoo
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