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829 lines
24 KiB
Fortran
829 lines
24 KiB
Fortran
module psb_getrow_mod
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interface csr_getrow
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module procedure csr_dspgtrow, csr_zspgtrow
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end interface
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interface coo_getrow
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module procedure coo_dspgtrow, coo_zspgtrow
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end interface
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interface jad_getrow
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module procedure jad_dspgtrow, jad_zspgtrow
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end interface
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contains
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subroutine csr_dspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
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use psb_spmat_type
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use psb_const_mod
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implicit none
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type(psb_dspmat_type), intent(in) :: a
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integer :: irw
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integer, intent(out) :: nz
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integer, allocatable, intent(inout) :: ia(:), ja(:)
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real(kind(1.d0)), allocatable, intent(inout) :: val(:)
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integer :: nzin
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logical, intent(in) :: append
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integer :: lrw,info
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integer, optional :: iren(:)
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integer :: idx,i,j, k, nr, row_idx, nzin_
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integer, allocatable :: indices(:)
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if (append) then
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nzin_ = nzin
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else
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nzin_ = 0
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endif
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if (a%pl(1) /= 0) then
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nr = lrw - irw + 1
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allocate(indices(nr))
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nz = 0
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do i=1,nr
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indices(i)=a%pl(irw+i-1)
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nz=nz+a%ia2(indices(i)+1)-a%ia2(indices(i))
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end do
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call psb_ensure_size(nzin_+nz,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nz,val,info)
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if (info /= 0) return
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k=0
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if(present(iren)) then
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do i=1,nr
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row_idx=indices(i)
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do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
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k = k + 1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = iren(row_idx)
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ja(nzin_+k) = iren(a%ia1(j))
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end do
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end do
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else
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do i=1,nr
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row_idx=indices(i)
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do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
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k = k + 1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = row_idx
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ja(nzin_+k) = a%ia1(j)
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end do
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end do
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end if
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else
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idx = irw
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if (idx<0) then
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write(0,*) ' spgtrow Error : idx no good ',idx
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return
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end if
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nr = lrw - irw + 1
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nz = a%ia2(idx+nr) - a%ia2(idx)
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call psb_ensure_size(nzin_+nz,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nz,val,info)
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if (info /= 0) return
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if (present(iren)) then
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k=0
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do i=irw,lrw
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do j=a%ia2(i),a%ia2(i+1)-1
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k = k + 1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = iren(i)
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ja(nzin_+k) = iren(a%ia1(j))
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end do
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enddo
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else
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k=0
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do i=irw,lrw
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do j=a%ia2(i),a%ia2(i+1)-1
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k = k + 1
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ia(nzin_+k) = i
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ja(nzin_+k) = a%ia1(j)
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val(nzin_+k) = a%aspk(j)
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end do
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enddo
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end if
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!!$ if (nz /= k) then
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!!$ write(0,*) 'csr getrow Size mismatch ',nz,k
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!!$ endif
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if (a%pr(1) /= 0) then
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write(0,*) 'Feeling lazy today, Right Permutation will have to wait'
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endif
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endif
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end subroutine csr_dspgtrow
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subroutine coo_dspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
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use psb_spmat_type
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use psb_const_mod
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implicit none
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type(psb_dspmat_type), intent(in) :: a
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integer :: irw
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integer, intent(out) :: nz
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integer, allocatable, intent(inout) :: ia(:), ja(:)
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real(kind(1.d0)), allocatable, intent(inout) :: val(:)
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integer :: nzin
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logical, intent(in) :: append
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integer :: lrw,info
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integer, optional :: iren(:)
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integer :: nzin_, nza, idx,ip,jp,i,j,k, nzt
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logical, parameter :: debug=.false.
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nza = a%infoa(psb_nnz_)
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if (a%pl(1) /= 0) then
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write(0,*) 'Fatal error in SPGTROW: do not feed a permuted mat so far!'
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idx = -1
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else
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idx = irw
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endif
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if (idx<0) then
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write(0,*) ' spgtrow Error : idx no good ',idx
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return
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end if
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if (append) then
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nzin_ = nzin
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else
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nzin_ = 0
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endif
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if (a%infoa(psb_srtd_) == psb_isrtdcoo_) then
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! In this case we can do a binary search.
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if (debug) write(0,*) 'coo_getrow: srtdcoo '
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do
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call ibsrch(ip,irw,nza,a%ia1)
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if (ip /= -1) exit
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irw = irw + 1
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if (irw > lrw) then
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write(0,*) 'Warning : did not find any rows. Is this an error? ',irw,lrw,idx
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exit
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end if
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end do
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if (ip /= -1) then
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! expand [ip,jp] to contain all row entries.
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do
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if (ip < 2) exit
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if (a%ia1(ip-1) == irw) then
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ip = ip -1
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else
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exit
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end if
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end do
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end if
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do
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call ibsrch(jp,lrw,nza,a%ia1)
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if (jp /= -1) exit
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lrw = lrw - 1
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if (irw > lrw) then
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write(0,*) 'Warning : did not find any rows. Is this an error?'
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exit
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end if
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end do
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if (jp /= -1) then
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! expand [ip,jp] to contain all row entries.
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do
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if (jp == nza) exit
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if (a%ia1(jp+1) == lrw) then
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jp = jp + 1
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else
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exit
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end if
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end do
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end if
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if (debug) write(0,*) 'coo_getrow: ip jp',ip,jp,nza
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if ((ip /= -1) .and.(jp /= -1)) then
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! Now do the copy.
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nz = jp - ip +1
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call psb_ensure_size(nzin_+nz,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nz,val,info)
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if (info /= 0) return
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if (present(iren)) then
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do i=ip,jp
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nzin_ = nzin_ + 1
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val(nzin_) = a%aspk(i)
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ia(nzin_) = iren(a%ia1(i))
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ja(nzin_) = iren(a%ia2(i))
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enddo
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else
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do i=ip,jp
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nzin_ = nzin_ + 1
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val(nzin_) = a%aspk(i)
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ia(nzin_) = a%ia1(i)
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ja(nzin_) = a%ia2(i)
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enddo
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end if
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else
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nz = 0
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end if
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else
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if (debug) write(0,*) 'coo_getrow: unsorted '
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nzt = (nza*(lrw-irw+1))/max(a%m,1)
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call psb_ensure_size(nzin_+nzt,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
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if (info /= 0) return
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if (present(iren)) then
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k = 0
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do i=1, a%infoa(psb_nnz_)
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if ((a%ia1(i)>=irw).and.(a%ia1(i)<=lrw)) then
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k = k + 1
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if (k > nzt) then
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nzt = k
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call psb_ensure_size(nzin_+nzt,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
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if (info /= 0) return
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end if
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val(nzin_+k) = a%aspk(i)
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ia(nzin_+k) = iren(a%ia1(i))
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ja(nzin_+k) = iren(a%ia2(i))
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endif
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enddo
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else
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k = 0
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do i=1,a%infoa(psb_nnz_)
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if ((a%ia1(i)>=irw).and.(a%ia1(i)<=lrw)) then
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k = k + 1
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if (k > nzt) then
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nzt = k
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call psb_ensure_size(nzin_+nzt,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
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if (info /= 0) return
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end if
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val(nzin_+k) = a%aspk(i)
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ia(nzin_+k) = (a%ia1(i))
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ja(nzin_+k) = (a%ia2(i))
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endif
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enddo
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nzin_=nzin_+k
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end if
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nz = k
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end if
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end subroutine coo_dspgtrow
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subroutine jad_dspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
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use psb_spmat_type
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use psb_const_mod
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implicit none
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type(psb_dspmat_type), intent(in), target :: a
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integer :: irw
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integer, intent(out) :: nz
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integer, allocatable, intent(inout) :: ia(:), ja(:)
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real(kind(1.d0)), allocatable, intent(inout) :: val(:)
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integer :: nzin
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logical, intent(in) :: append
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integer, optional :: iren(:)
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integer :: lrw,info
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integer, pointer :: ia1(:), ia2(:), ia3(:),&
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& ja_(:), ka_(:), indices(:), blks(:)
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integer :: png, pia, pja, ipx, blk, rb, row, k_pt, npg, col, ng, nzin_,&
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& i,j,k,nr
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png = a%ia2(1) ! points to the number of blocks
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pia = a%ia2(2) ! points to the beginning of ia(3,png)
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pja = a%ia2(3) ! points to the beginning of ja(:)
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ng = a%ia2(png) ! the number of blocks
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ja_ => a%ia2(pja:) ! the array containing the pointers to ka and aspk
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ka_ => a%ia1(:) ! the array containing the column indices
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ia1 => a%ia2(pia:pja-1:3) ! the array containing the first row index of each block
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ia2 => a%ia2(pia+1:pja-1:3) ! the array containing a pointer to the pos. in ja to the first jad column
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ia3 => a%ia2(pia+2:pja-1:3) ! the array containing a pointer to the pos. in ja to the first csr column
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if (append) then
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nzin_ = nzin
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else
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nzin_ = 0
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endif
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if (a%pl(1) /= 0) then
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nr = lrw - irw + 1
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allocate(indices(nr),blks(nr))
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nz = 0
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do i=1,nr
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indices(i)=a%pl(irw+i-1)
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j=0
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blkfnd: do
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j=j+1
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if(ia1(j).eq.indices(i)) then
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blks(i)=j
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nz=nz+ia3(j)-ia2(j)
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ipx = ia1(j) ! the first row index of the block
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rb = indices(i)-ipx ! the row offset within the block
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row = ia3(j)+rb
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nz = nz+ja_(row+1)-ja_(row)
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exit blkfnd
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else if(ia1(j).gt.indices(i)) then
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blks(i)=j-1
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nz=nz+ia3(j-1)-ia2(j-1)
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ipx = ia1(j-1) ! the first row index of the block
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rb = indices(i)-ipx ! the row offset within the block
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row = ia3(j-1)+rb
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nz = nz+ja_(row+1)-ja_(row)
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exit blkfnd
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end if
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end do blkfnd
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end do
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call psb_ensure_size(nzin_+nz,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nz,val,info)
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if (info /= 0) return
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k=0
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! cycle over rows
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do i=1,nr
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! find which block the row belongs to
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blk = blks(i)
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! extract first part of the row from the jad block
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ipx = ia1(blk) ! the first row index of the block
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k_pt= ia2(blk) ! the pointer to the beginning of a column in ja
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rb = indices(i)-ipx ! the row offset within the block
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npg = ja_(k_pt+1)-ja_(k_pt) ! the number of rows in the block
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if(present(iren))then
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do col = ia2(blk), ia3(blk)-1
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k=k+1
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val(nzin_+k) = a%aspk(ja_(col)+rb)
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ia(nzin_+k) = iren(irw+i-1)
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ja(nzin_+k) = iren(ka_(ja_(col)+rb))
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end do
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else
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do col = ia2(blk), ia3(blk)-1
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k=k+1
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val(nzin_+k) = a%aspk(ja_(col)+rb)
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ia(nzin_+k) = irw+i-1
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ja(nzin_+k) = ka_(ja_(col)+rb)
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end do
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end if
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! extract second part of the row from the csr tail
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row=ia3(blk)+rb
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if(present(iren))then
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do j=ja_(row), ja_(row+1)-1
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k=k+1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = iren(irw+i-1)
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ja(nzin_+k) = iren(ka_(j))
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end do
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else
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do j=ja_(row), ja_(row+1)-1
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k=k+1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = irw+i-1
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ja(nzin_+k) = ka_(j)
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end do
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end if
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end do
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else
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! There might be some problems
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info=134
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end if
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end subroutine jad_dspgtrow
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subroutine csr_zspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
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use psb_spmat_type
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use psb_const_mod
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implicit none
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type(psb_zspmat_type), intent(in) :: a
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integer :: irw
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integer, intent(out) :: nz
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integer, allocatable, intent(inout) :: ia(:), ja(:)
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complex(kind(1.d0)), allocatable, intent(inout) :: val(:)
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integer :: nzin
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logical, intent(in) :: append
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integer :: lrw,info
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integer, optional :: iren(:)
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integer :: idx,i,j, k, nr, row_idx, nzin_
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integer, allocatable :: indices(:)
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if (append) then
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nzin_ = nzin
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else
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nzin_ = 0
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endif
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if (a%pl(1) /= 0) then
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nr = lrw - irw + 1
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allocate(indices(nr))
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nz = 0
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do i=1,nr
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indices(i)=a%pl(irw+i-1)
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nz=nz+a%ia2(indices(i)+1)-a%ia2(indices(i))
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end do
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call psb_ensure_size(nzin_+nz,ia,info)
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if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
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if (info==0) call psb_ensure_size(nzin_+nz,val,info)
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if (info /= 0) return
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k=0
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if(present(iren)) then
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do i=1,nr
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row_idx=indices(i)
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do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
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k = k + 1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = iren(row_idx)
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ja(nzin_+k) = iren(a%ia1(j))
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end do
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end do
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else
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do i=1,nr
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row_idx=indices(i)
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do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
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k = k + 1
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val(nzin_+k) = a%aspk(j)
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ia(nzin_+k) = row_idx
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ja(nzin_+k) = a%ia1(j)
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end do
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end do
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end if
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else
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idx = irw
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if (idx<0) then
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write(0,*) ' spgtrow Error : idx no good ',idx
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return
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end if
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nr = lrw - irw + 1
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nz = a%ia2(idx+nr) - a%ia2(idx)
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call psb_ensure_size(nzin_+nz,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,val,info)
|
|
if (info /= 0) return
|
|
|
|
|
|
if (present(iren)) then
|
|
k=0
|
|
do i=irw,lrw
|
|
do j=a%ia2(i),a%ia2(i+1)-1
|
|
k = k + 1
|
|
val(nzin_+k) = a%aspk(j)
|
|
ia(nzin_+k) = iren(i)
|
|
ja(nzin_+k) = iren(a%ia1(j))
|
|
end do
|
|
enddo
|
|
else
|
|
k=0
|
|
|
|
do i=irw,lrw
|
|
do j=a%ia2(i),a%ia2(i+1)-1
|
|
k = k + 1
|
|
ia(nzin_+k) = i
|
|
ja(nzin_+k) = a%ia1(j)
|
|
val(nzin_+k) = a%aspk(j)
|
|
end do
|
|
enddo
|
|
end if
|
|
if (a%pr(1) /= 0) then
|
|
write(0,*) 'Feeling lazy today, Right Permutation will have to wait'
|
|
endif
|
|
|
|
endif
|
|
|
|
end subroutine csr_zspgtrow
|
|
|
|
|
|
subroutine coo_zspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
|
|
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in) :: a
|
|
integer :: irw
|
|
integer, intent(out) :: nz
|
|
integer, allocatable, intent(inout) :: ia(:), ja(:)
|
|
complex(kind(1.d0)), allocatable, intent(inout) :: val(:)
|
|
integer :: nzin
|
|
logical, intent(in) :: append
|
|
integer :: lrw,info
|
|
integer, optional :: iren(:)
|
|
integer :: nzin_, nza, idx,ip,jp,i,j,k, nzt
|
|
logical, parameter :: debug=.false.
|
|
|
|
nza = a%infoa(psb_nnz_)
|
|
if (a%pl(1) /= 0) then
|
|
write(0,*) 'Fatal error in SPGTROW: do not feed a permuted mat so far!'
|
|
idx = -1
|
|
else
|
|
idx = irw
|
|
endif
|
|
if (idx<0) then
|
|
write(0,*) ' spgtrow Error : idx no good ',idx
|
|
return
|
|
end if
|
|
|
|
if (append) then
|
|
nzin_ = nzin
|
|
else
|
|
nzin_ = 0
|
|
endif
|
|
|
|
if (a%infoa(psb_srtd_) == psb_isrtdcoo_) then
|
|
! In this case we can do a binary search.
|
|
if (debug) write(0,*) 'coo_getrow: srtdcoo '
|
|
do
|
|
call ibsrch(ip,irw,nza,a%ia1)
|
|
if (ip /= -1) exit
|
|
irw = irw + 1
|
|
if (irw > lrw) then
|
|
write(0,*) 'Warning : did not find any rows. Is this an error? ',irw,lrw,idx
|
|
exit
|
|
end if
|
|
end do
|
|
|
|
if (ip /= -1) then
|
|
! expand [ip,jp] to contain all row entries.
|
|
do
|
|
if (ip < 2) exit
|
|
if (a%ia1(ip-1) == irw) then
|
|
ip = ip -1
|
|
else
|
|
exit
|
|
end if
|
|
end do
|
|
|
|
end if
|
|
|
|
do
|
|
call ibsrch(jp,lrw,nza,a%ia1)
|
|
if (jp /= -1) exit
|
|
lrw = lrw - 1
|
|
if (irw > lrw) then
|
|
write(0,*) 'Warning : did not find any rows. Is this an error?'
|
|
exit
|
|
end if
|
|
end do
|
|
|
|
if (jp /= -1) then
|
|
! expand [ip,jp] to contain all row entries.
|
|
do
|
|
if (jp == nza) exit
|
|
if (a%ia1(jp+1) == lrw) then
|
|
jp = jp + 1
|
|
else
|
|
exit
|
|
end if
|
|
end do
|
|
end if
|
|
if (debug) write(0,*) 'coo_getrow: ip jp',ip,jp,nza
|
|
if ((ip /= -1) .and.(jp /= -1)) then
|
|
! Now do the copy.
|
|
nz = jp - ip +1
|
|
|
|
call psb_ensure_size(nzin_+nz,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,val,info)
|
|
if (info /= 0) return
|
|
|
|
if (present(iren)) then
|
|
do i=ip,jp
|
|
nzin_ = nzin_ + 1
|
|
val(nzin_) = a%aspk(i)
|
|
ia(nzin_) = iren(a%ia1(i))
|
|
ja(nzin_) = iren(a%ia2(i))
|
|
enddo
|
|
else
|
|
do i=ip,jp
|
|
nzin_ = nzin_ + 1
|
|
val(nzin_) = a%aspk(i)
|
|
ia(nzin_) = a%ia1(i)
|
|
ja(nzin_) = a%ia2(i)
|
|
enddo
|
|
end if
|
|
else
|
|
nz = 0
|
|
end if
|
|
|
|
else
|
|
if (debug) write(0,*) 'coo_getrow: unsorted '
|
|
nzt = (nza*(lrw-irw+1))/max(a%m,1)
|
|
|
|
call psb_ensure_size(nzin_+nzt,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
|
|
if (info /= 0) return
|
|
|
|
if (present(iren)) then
|
|
k = 0
|
|
do i=1, a%infoa(psb_nnz_)
|
|
if ((a%ia1(i)>=irw).and.(a%ia1(i)<=lrw)) then
|
|
k = k + 1
|
|
if (k > nzt) then
|
|
nzt = k
|
|
call psb_ensure_size(nzin_+nzt,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
|
|
if (info /= 0) return
|
|
end if
|
|
val(nzin_+k) = a%aspk(i)
|
|
ia(nzin_+k) = iren(a%ia1(i))
|
|
ja(nzin_+k) = iren(a%ia2(i))
|
|
endif
|
|
enddo
|
|
else
|
|
k = 0
|
|
do i=1,a%infoa(psb_nnz_)
|
|
if ((a%ia1(i)>=irw).and.(a%ia1(i)<=lrw)) then
|
|
k = k + 1
|
|
if (k > nzt) then
|
|
nzt = k
|
|
call psb_ensure_size(nzin_+nzt,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
|
|
if (info /= 0) return
|
|
|
|
end if
|
|
val(nzin_+k) = a%aspk(i)
|
|
ia(nzin_+k) = (a%ia1(i))
|
|
ja(nzin_+k) = (a%ia2(i))
|
|
endif
|
|
enddo
|
|
nzin_=nzin_+k
|
|
end if
|
|
nz = k
|
|
end if
|
|
|
|
end subroutine coo_zspgtrow
|
|
|
|
|
|
subroutine jad_zspgtrow(irw,a,nz,ia,ja,val,nzin,append,lrw,info,iren)
|
|
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in), target :: a
|
|
integer :: irw
|
|
integer, intent(out) :: nz
|
|
integer, allocatable, intent(inout) :: ia(:), ja(:)
|
|
complex(kind(1.d0)), allocatable, intent(inout) :: val(:)
|
|
integer :: nzin
|
|
logical, intent(in) :: append
|
|
integer, optional :: iren(:)
|
|
integer :: lrw,info
|
|
|
|
integer, pointer :: ia1(:), ia2(:), ia3(:),&
|
|
& ja_(:), ka_(:), indices(:), blks(:)
|
|
integer :: png, pia, pja, ipx, blk, rb, row, k_pt, npg, col, ng, nzin_,&
|
|
& i,j,k,nr
|
|
|
|
|
|
png = a%ia2(1) ! points to the number of blocks
|
|
pia = a%ia2(2) ! points to the beginning of ia(3,png)
|
|
pja = a%ia2(3) ! points to the beginning of ja(:)
|
|
|
|
ng = a%ia2(png) ! the number of blocks
|
|
ja_ => a%ia2(pja:) ! the array containing the pointers to ka and aspk
|
|
ka_ => a%ia1(:) ! the array containing the column indices
|
|
ia1 => a%ia2(pia:pja-1:3) ! the array containing the first row index of each block
|
|
ia2 => a%ia2(pia+1:pja-1:3) ! the array containing a pointer to the pos. in ja to the first jad column
|
|
ia3 => a%ia2(pia+2:pja-1:3) ! the array containing a pointer to the pos. in ja to the first csr column
|
|
|
|
if (append) then
|
|
nzin_ = nzin
|
|
else
|
|
nzin_ = 0
|
|
endif
|
|
|
|
if (a%pl(1) /= 0) then
|
|
|
|
nr = lrw - irw + 1
|
|
allocate(indices(nr),blks(nr))
|
|
nz = 0
|
|
|
|
do i=1,nr
|
|
indices(i)=a%pl(irw+i-1)
|
|
j=0
|
|
blkfnd: do
|
|
j=j+1
|
|
if(ia1(j).eq.indices(i)) then
|
|
blks(i)=j
|
|
nz=nz+ia3(j)-ia2(j)
|
|
ipx = ia1(j) ! the first row index of the block
|
|
rb = indices(i)-ipx ! the row offset within the block
|
|
row = ia3(j)+rb
|
|
nz = nz+ja_(row+1)-ja_(row)
|
|
exit blkfnd
|
|
else if(ia1(j).gt.indices(i)) then
|
|
blks(i)=j-1
|
|
nz=nz+ia3(j-1)-ia2(j-1)
|
|
ipx = ia1(j-1) ! the first row index of the block
|
|
rb = indices(i)-ipx ! the row offset within the block
|
|
row = ia3(j-1)+rb
|
|
nz = nz+ja_(row+1)-ja_(row)
|
|
exit blkfnd
|
|
end if
|
|
end do blkfnd
|
|
end do
|
|
|
|
|
|
call psb_ensure_size(nzin_+nz,ia,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,ja,info)
|
|
if (info==0) call psb_ensure_size(nzin_+nz,val,info)
|
|
if (info /= 0) return
|
|
|
|
k=0
|
|
! cycle over rows
|
|
do i=1,nr
|
|
|
|
! find which block the row belongs to
|
|
blk = blks(i)
|
|
|
|
! extract first part of the row from the jad block
|
|
ipx = ia1(blk) ! the first row index of the block
|
|
k_pt= ia2(blk) ! the pointer to the beginning of a column in ja
|
|
rb = indices(i)-ipx ! the row offset within the block
|
|
npg = ja_(k_pt+1)-ja_(k_pt) ! the number of rows in the block
|
|
|
|
if(present(iren))then
|
|
do col = ia2(blk), ia3(blk)-1
|
|
k=k+1
|
|
val(nzin_+k) = a%aspk(ja_(col)+rb)
|
|
ia(nzin_+k) = iren(irw+i-1)
|
|
ja(nzin_+k) = iren(ka_(ja_(col)+rb))
|
|
end do
|
|
else
|
|
do col = ia2(blk), ia3(blk)-1
|
|
k=k+1
|
|
val(nzin_+k) = a%aspk(ja_(col)+rb)
|
|
ia(nzin_+k) = irw+i-1
|
|
ja(nzin_+k) = ka_(ja_(col)+rb)
|
|
end do
|
|
end if
|
|
! extract second part of the row from the csr tail
|
|
row=ia3(blk)+rb
|
|
if(present(iren))then
|
|
do j=ja_(row), ja_(row+1)-1
|
|
k=k+1
|
|
val(nzin_+k) = a%aspk(j)
|
|
ia(nzin_+k) = iren(irw+i-1)
|
|
ja(nzin_+k) = iren(ka_(j))
|
|
end do
|
|
else
|
|
do j=ja_(row), ja_(row+1)-1
|
|
k=k+1
|
|
val(nzin_+k) = a%aspk(j)
|
|
ia(nzin_+k) = irw+i-1
|
|
ja(nzin_+k) = ka_(j)
|
|
end do
|
|
end if
|
|
end do
|
|
|
|
else
|
|
! There might be some problems
|
|
info=134
|
|
end if
|
|
|
|
end subroutine jad_zspgtrow
|
|
|
|
|
|
end module psb_getrow_mod
|