You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
518 lines
14 KiB
Fortran
518 lines
14 KiB
Fortran
!!$
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ Redistribution and use in source and binary forms, with or without
|
|
!!$ modification, are permitted provided that the following conditions
|
|
!!$ are met:
|
|
!!$ 1. Redistributions of source code must retain the above copyright
|
|
!!$ notice, this list of conditions and the following disclaimer.
|
|
!!$ 2. Redistributions in binary form must reproduce the above copyright
|
|
!!$ notice, this list of conditions, and the following disclaimer in the
|
|
!!$ documentation and/or other materials provided with the distribution.
|
|
!!$ 3. The name of the PSBLAS group or the names of its contributors may
|
|
!!$ not be used to endorse or promote products derived from this
|
|
!!$ software without specific written permission.
|
|
!!$
|
|
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
|
|
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
!!$ POSSIBILITY OF SUCH DAMAGE.
|
|
!!$
|
|
!!$
|
|
! File: psb_zspgtblk.f90
|
|
! Subroutine: psb_zspgtblk
|
|
! Gets one or more rows from a sparse matrix.
|
|
! Parameters:
|
|
|
|
!*****************************************************************************
|
|
!* *
|
|
!* Takes a specified row from matrix A and copies into matrix B (possibly *
|
|
!* appending to B). Output is always COO. Input might be anything, once *
|
|
!* we get to actually write the code..... *
|
|
!* *
|
|
!*****************************************************************************
|
|
subroutine psb_zspgtblk(irw,a,b,info,append,iren,lrw)
|
|
! Output is always in COO format into B, irrespective of
|
|
! the input format
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in) :: a
|
|
integer, intent(in) :: irw
|
|
type(psb_zspmat_type), intent(inout) :: b
|
|
integer,intent(out) :: info
|
|
logical, intent(in), optional :: append
|
|
integer, intent(in), target, optional :: iren(:)
|
|
integer, intent(in), optional :: lrw
|
|
|
|
logical :: append_
|
|
integer, pointer :: iren_(:)
|
|
integer :: i,j,k,ip,jp,nr,idx, nz,iret,nzb, nza, lrw_, irw_, err_act
|
|
character(len=20) :: name, ch_err
|
|
|
|
name='psb_spgtblk'
|
|
info = 0
|
|
call psb_erractionsave(err_act)
|
|
|
|
irw_ = irw
|
|
if (present(lrw)) then
|
|
lrw_ = lrw
|
|
else
|
|
lrw_ = irw
|
|
endif
|
|
if (lrw_ < irw) then
|
|
write(0,*) 'SPGTBLK input error: fixing lrw',irw,lrw_
|
|
lrw_ = irw
|
|
end if
|
|
if (present(append)) then
|
|
append_=append
|
|
else
|
|
append_=.false.
|
|
endif
|
|
if (present(iren)) then
|
|
iren_=>iren
|
|
else
|
|
iren_ => null()
|
|
end if
|
|
|
|
|
|
if (append_) then
|
|
nzb = b%infoa(psb_nnz_)
|
|
else
|
|
nzb = 0
|
|
b%m = 0
|
|
b%k = 0
|
|
endif
|
|
|
|
if (a%fida == 'CSR') then
|
|
call csr_zspgtblk(irw_,a,b,append_,iren_,lrw_)
|
|
|
|
else if (a%fida == 'COO') then
|
|
call coo_zspgtblk(irw_,a,b,append_,iren_,lrw_)
|
|
|
|
else if (a%fida == 'JAD') then
|
|
call jad_zspgtblk(irw_,a,b,append_,iren_,lrw_)
|
|
|
|
else
|
|
info=136
|
|
ch_err=a%fida(1:3)
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
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 csr_zspgtblk(irw,a,b,append,iren,lrw)
|
|
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in) :: a
|
|
integer :: irw
|
|
type(psb_zspmat_type), intent(inout) :: b
|
|
logical, intent(in) :: append
|
|
integer, pointer :: iren(:)
|
|
integer :: lrw
|
|
|
|
integer :: idx,i,j ,nr,nz,nzb, row_idx
|
|
integer, pointer :: indices(:)
|
|
|
|
if (append) then
|
|
nzb = b%infoa(psb_nnz_)
|
|
else
|
|
nzb = 0
|
|
endif
|
|
|
|
if (a%pl(1) /= 0) then
|
|
|
|
nr = lrw - irw + 1
|
|
allocate(indices(nr))
|
|
nz = 0
|
|
do i=1,nr
|
|
indices(i)=a%pl(irw+i-1)
|
|
nz=nz+a%ia2(indices(i)+1)-a%ia2(indices(i))
|
|
end do
|
|
|
|
if (min(size(b%ia1),size(b%ia2),size(b%aspk)) < nzb+nz) then
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
endif
|
|
|
|
k=0
|
|
if(associated(iren)) then
|
|
do i=1,nr
|
|
row_idx=indices(i)
|
|
do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
|
|
k = k + 1
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
b%ia1(nzb+k) = iren(row_idx)
|
|
b%ia2(nzb+k) = iren(a%ia1(j))
|
|
end do
|
|
end do
|
|
else
|
|
do i=1,nr
|
|
row_idx=indices(i)
|
|
do j=a%ia2(row_idx),a%ia2(row_idx+1)-1
|
|
k = k + 1
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
b%ia1(nzb+k) = row_idx
|
|
b%ia2(nzb+k) = a%ia1(j)
|
|
end do
|
|
end do
|
|
end if
|
|
|
|
b%infoa(psb_nnz_) = nzb+k
|
|
b%m = b%m+nr
|
|
b%k = max(b%k,a%k)
|
|
|
|
else
|
|
idx = irw
|
|
|
|
if (idx<0) then
|
|
write(0,*) ' spgtblk Error : idx no good ',idx
|
|
return
|
|
end if
|
|
nr = lrw - irw + 1
|
|
nz = a%ia2(idx+nr) - a%ia2(idx)
|
|
|
|
if (min(size(b%ia1),size(b%ia2),size(b%aspk)) < nzb+nz) then
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
endif
|
|
b%fida='COO'
|
|
|
|
if (associated(iren)) then
|
|
k=0
|
|
do i=irw,lrw
|
|
do j=a%ia2(i),a%ia2(i+1)-1
|
|
k = k + 1
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
b%ia1(nzb+k) = iren(i)
|
|
b%ia2(nzb+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
|
|
b%ia1(nzb+k) = i
|
|
b%ia2(nzb+k) = a%ia1(j)
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
!!$ write(0,*) 'csr_gtblk: in:',a%aspk(j),i,a%ia1(j)
|
|
end do
|
|
enddo
|
|
end if
|
|
b%infoa(psb_nnz_) = nzb+nz
|
|
if (a%pr(1) /= 0) then
|
|
write(0,*) 'Feeling lazy today, Right Permutation will have to wait'
|
|
endif
|
|
b%m = b%m+lrw-irw+1
|
|
b%k = max(b%k,a%k)
|
|
|
|
endif
|
|
|
|
end subroutine csr_zspgtblk
|
|
|
|
subroutine coo_zspgtblk(irw,a,b,append,iren,lrw)
|
|
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in) :: a
|
|
integer :: irw
|
|
type(psb_zspmat_type), intent(inout) :: b
|
|
logical, intent(in) :: append
|
|
integer, pointer :: iren(:)
|
|
integer :: lrw
|
|
|
|
nza = a%infoa(psb_nnz_)
|
|
if (a%pl(1) /= 0) then
|
|
write(0,*) 'Fatal error in SPGTBLK: do not feed a permuted mat so far!'
|
|
idx = -1
|
|
else
|
|
idx = irw
|
|
endif
|
|
if (idx<0) then
|
|
write(0,*) ' spgtblk Error : idx no good ',idx
|
|
return
|
|
end if
|
|
|
|
if (a%infoa(psb_srtd_) == psb_isrtdcoo_) then
|
|
! In this case we can do a binary search.
|
|
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 ((ip /= -1) .and.(jp /= -1)) then
|
|
! Now do the copy.
|
|
nz = jp - ip +1
|
|
if (size(b%ia1) < nzb+nz) then
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
endif
|
|
b%fida='COO'
|
|
if (associated(iren)) then
|
|
do i=ip,jp
|
|
nzb = nzb + 1
|
|
b%aspk(nzb) = a%aspk(i)
|
|
b%ia1(nzb) = iren(a%ia1(i))
|
|
b%ia2(nzb) = iren(a%ia2(i))
|
|
enddo
|
|
else
|
|
do i=ip,jp
|
|
nzb = nzb + 1
|
|
b%aspk(nzb) = a%aspk(i)
|
|
b%ia1(nzb) = a%ia1(i)
|
|
b%ia2(nzb) = a%ia2(i)
|
|
enddo
|
|
end if
|
|
end if
|
|
|
|
else
|
|
|
|
nz = (nza*(lrw-irw+1))/max(a%m,1)
|
|
|
|
if (size(b%ia1) < nzb+nz) then
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
endif
|
|
|
|
if (associated(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 > nz) then
|
|
nz = k
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
end if
|
|
b%aspk(nzb+k) = a%aspk(i)
|
|
b%ia1(nzb+k) = iren(a%ia1(i))
|
|
b%ia2(nzb+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 > nz) then
|
|
nz = k
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
end if
|
|
b%aspk(nzb+k) = a%aspk(i)
|
|
b%ia1(nzb+k) = (a%ia1(i))
|
|
b%ia2(nzb+k) = (a%ia2(i))
|
|
endif
|
|
enddo
|
|
nzb=nzb+k
|
|
end if
|
|
end if
|
|
|
|
b%infoa(psb_nnz_) = nzb
|
|
b%m = b%m+lrw-irw+1
|
|
b%k = max(b%k,a%k)
|
|
end subroutine coo_zspgtblk
|
|
|
|
|
|
|
|
|
|
subroutine jad_zspgtblk(irw,a,b,append,iren,lrw)
|
|
|
|
type(psb_zspmat_type), intent(in),target :: a
|
|
integer :: irw
|
|
type(psb_zspmat_type), intent(inout) :: b
|
|
logical, intent(in) :: append
|
|
integer, pointer :: iren(:)
|
|
integer :: lrw
|
|
|
|
integer, pointer :: ia1(:), ia2(:), ia3(:),&
|
|
& ja(:), ka(:), indices(:), blks(:)
|
|
integer :: png, pia, pja, ipx, blk, rb, row, k_pt, npg, col, ng
|
|
|
|
|
|
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
|
|
nzb = b%infoa(psb_nnz_)
|
|
else
|
|
nzb = 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
|
|
|
|
if (size(b%ia1) < nzb+nz) then
|
|
call psb_sp_reall(b,nzb+nz,iret)
|
|
endif
|
|
|
|
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(associated(iren))then
|
|
do col = ia2(blk), ia3(blk)-1
|
|
k=k+1
|
|
b%aspk(nzb+k) = a%aspk(ja(col)+rb)
|
|
b%ia1(nzb+k) = iren(irw+i-1)
|
|
b%ia2(nzb+k) = iren(ka(ja(col)+rb))
|
|
end do
|
|
else
|
|
do col = ia2(blk), ia3(blk)-1
|
|
k=k+1
|
|
b%aspk(nzb+k) = a%aspk(ja(col)+rb)
|
|
b%ia1(nzb+k) = irw+i-1
|
|
b%ia2(nzb+k) = ka(ja(col)+rb)
|
|
end do
|
|
end if
|
|
! extract second part of the row from the csr tail
|
|
row=ia3(blk)+rb
|
|
if(associated(iren))then
|
|
do j=ja(row), ja(row+1)-1
|
|
k=k+1
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
b%ia1(nzb+k) = iren(irw+i-1)
|
|
b%ia2(nzb+k) = iren(ka(j))
|
|
end do
|
|
else
|
|
do j=ja(row), ja(row+1)-1
|
|
k=k+1
|
|
b%aspk(nzb+k) = a%aspk(j)
|
|
b%ia1(nzb+k) = irw+i-1
|
|
b%ia2(nzb+k) = ka(j)
|
|
end do
|
|
end if
|
|
end do
|
|
|
|
b%infoa(psb_nnz_) = nzb+k
|
|
b%m = b%m+lrw-irw+1
|
|
b%k = max(b%k,a%k)
|
|
b%fida='COO'
|
|
|
|
else
|
|
! There might be some problems
|
|
info=134
|
|
ch_err=a%fida(1:3)
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
end if
|
|
|
|
|
|
|
|
end subroutine jad_zspgtblk
|
|
|
|
|
|
|
|
|
|
end subroutine psb_zspgtblk
|
|
|