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358 lines
8.4 KiB
Fortran
358 lines
8.4 KiB
Fortran
subroutine psb_z_mat_renums(alg,mat,info,perm)
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use psb_base_mod
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use psb_renum_mod, psb_protect_name => psb_z_mat_renums
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implicit none
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character(len=*), intent(in) :: alg
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type(psb_zspmat_type), intent(inout) :: mat
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integer, intent(out) :: info
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integer, allocatable, optional, intent(out) :: perm(:)
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integer :: err_act, nr, nc, ialg
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character(len=20) :: name
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info = psb_success_
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name = 'mat_renum'
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call psb_erractionsave(err_act)
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info = psb_success_
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select case (psb_toupper(alg))
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case ('GPS')
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ialg = psb_mat_renum_gps_
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case ('AMD')
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ialg = psb_mat_renum_amd_
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case default
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ialg = -1
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end select
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call psb_mat_renum(ialg,mat,info,perm)
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_non_
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call psb_errpush(info,name)
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_z_mat_renums
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subroutine psb_z_mat_renum(alg,mat,info,perm)
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use psb_base_mod
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use psb_renum_mod, psb_protect_name => psb_z_mat_renum
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implicit none
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integer, intent(in) :: alg
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type(psb_zspmat_type), intent(inout) :: mat
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integer, intent(out) :: info
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integer, allocatable, optional, intent(out) :: perm(:)
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integer :: err_act, nr, nc
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character(len=20) :: name
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info = psb_success_
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name = 'mat_renum'
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call psb_erractionsave(err_act)
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info = psb_success_
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nr = mat%get_nrows()
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nc = mat%get_ncols()
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if (nr /= nc) then
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info = psb_err_rectangular_mat_unsupported_
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call psb_errpush(info,name,i_err=(/nr,nc,0,0,0/))
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goto 9999
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end if
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select case (alg)
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case(psb_mat_renum_gps_)
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call psb_mat_renum_gps(mat,info,perm)
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case(psb_mat_renum_amd_)
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call psb_mat_renum_amd(mat,info,perm)
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case default
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info = psb_err_input_value_invalid_i_
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call psb_errpush(info,name,i_err=(/1,alg,0,0,0/))
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goto 9999
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end select
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_non_
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call psb_errpush(info,name)
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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contains
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subroutine psb_mat_renum_gps(a,info,operm)
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use psb_base_mod
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use psb_gps_mod
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implicit none
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type(psb_zspmat_type), intent(inout) :: a
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integer, intent(out) :: info
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integer, allocatable, optional, intent(out) :: operm(:)
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!
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class(psb_z_base_sparse_mat), allocatable :: aa
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type(psb_z_csr_sparse_mat) :: acsr
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type(psb_z_coo_sparse_mat) :: acoo
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integer :: err_act
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character(len=20) :: name
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integer, allocatable :: ndstk(:,:), iold(:), ndeg(:), perm(:)
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integer :: i, j, k, ideg, nr, ibw, ipf, idpth
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info = psb_success_
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name = 'mat_renum'
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call psb_erractionsave(err_act)
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info = psb_success_
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call a%mold(aa)
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call a%mv_to(aa)
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call aa%mv_to_fmt(acsr,info)
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! Insert call to gps_reduce
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nr = acsr%get_nrows()
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ideg = 0
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do i=1, nr
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ideg = max(ideg,acsr%irp(i+1)-acsr%irp(i))
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end do
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allocate(ndstk(nr,ideg), iold(nr), perm(nr+1), ndeg(nr),stat=info)
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if (info /= 0) then
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info = psb_err_alloc_dealloc_
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call psb_errpush(info, name)
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goto 9999
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end if
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do i=1, nr
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iold(i) = i
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ndstk(i,:) = 0
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k = 0
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do j=acsr%irp(i),acsr%irp(i+1)-1
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k = k + 1
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ndstk(i,k) = acsr%ja(j)
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end do
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end do
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perm = 0
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call psb_gps_reduce(ndstk,nr,ideg,iold,perm,ndeg,ibw,ipf,idpth)
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if (.not.psb_isaperm(nr,perm)) then
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write(0,*) 'Something wrong: bad perm from gps_reduce'
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info = psb_err_from_subroutine_
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call psb_errpush(info,name)
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goto 9999
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end if
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! Move to coordinate to apply renumbering
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call acsr%mv_to_coo(acoo,info)
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do i=1, acoo%get_nzeros()
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acoo%ia(i) = perm(acoo%ia(i))
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acoo%ja(i) = perm(acoo%ja(i))
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end do
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call acoo%fix(info)
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! Get back to where we started from
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call aa%mv_from_coo(acoo,info)
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call a%mv_from(aa)
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if (present(operm)) then
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call psb_realloc(nr,operm,info)
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if (info /= psb_success_) then
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info = psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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end if
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operm(1:nr) = perm(1:nr)
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end if
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deallocate(aa)
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_mat_renum_gps
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subroutine psb_mat_renum_amd(a,info,operm)
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#if defined(HAVE_AMD) && defined(HAVE_ISO_C_BINDING)
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use iso_c_binding
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#endif
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use psb_base_mod
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implicit none
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type(psb_zspmat_type), intent(inout) :: a
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integer, intent(out) :: info
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integer, allocatable, optional, intent(out) :: operm(:)
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!
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#if defined(HAVE_AMD) && defined(HAVE_ISO_C_BINDING)
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interface
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function psb_amd_order(n,ap,ai,p)&
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& result(res) bind(c,name='psb_amd_order')
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use iso_c_binding
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integer(c_int) :: res
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integer(c_int), value :: n
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integer(c_int) :: ap(*), ai(*), p(*)
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end function psb_amd_order
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end interface
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#endif
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type(psb_z_csc_sparse_mat) :: acsc
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class(psb_z_base_sparse_mat), allocatable :: aa
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type(psb_z_coo_sparse_mat) :: acoo
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integer, allocatable :: perm(:)
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integer :: err_act
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character(len=20) :: name
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integer :: i, j, k, ideg, nr, ibw, ipf, idpth, nz
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info = psb_success_
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name = 'mat_renum_amd'
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call psb_erractionsave(err_act)
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#if defined(HAVE_AMD) && defined(HAVE_ISO_C_BINDING)
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info = psb_success_
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nr = a%get_nrows()
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nz = a%get_nzeros()
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allocate(perm(nr),stat=info)
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if (info /= 0) then
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info = psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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end if
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allocate(aa, mold=a%a)
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call a%mv_to(acsc)
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acsc%ia(:) = acsc%ia(:) - 1
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acsc%icp(:) = acsc%icp(:) - 1
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info = psb_amd_order(nr,acsc%icp,acsc%ia,perm)
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='psb_amd_order')
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goto 9999
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end if
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perm(:) = perm(:) + 1
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acsc%ia(:) = acsc%ia(:) + 1
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acsc%icp(:) = acsc%icp(:) + 1
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call acsc%mv_to_coo(acoo,info)
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do i=1, acoo%get_nzeros()
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acoo%ia(i) = perm(acoo%ia(i))
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acoo%ja(i) = perm(acoo%ja(i))
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end do
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call acoo%fix(info)
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! Get back to where we started from
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call aa%mv_from_coo(acoo,info)
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call a%mv_from(aa)
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if (present(operm)) then
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call psb_realloc(nr,operm,info)
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if (info /= psb_success_) then
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info = psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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end if
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operm(1:nr) = perm(1:nr)
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end if
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deallocate(aa,perm)
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#else
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info = psb_err_missing_aux_lib_
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call psb_errpush(info, name)
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goto 9999
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#endif
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_mat_renum_amd
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end subroutine psb_z_mat_renum
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subroutine psb_z_cmp_bwpf(mat,bwl,bwu,prf,info)
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use psb_base_mod
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use psb_renum_mod, psb_protect_name => psb_z_cmp_bwpf
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implicit none
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type(psb_zspmat_type), intent(in) :: mat
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integer, intent(out) :: bwl, bwu
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integer, intent(out) :: prf
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integer, intent(out) :: info
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!
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integer, allocatable :: irow(:), icol(:)
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complex(psb_dpk_), allocatable :: val(:)
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integer :: nz
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integer :: i, j, lrbu, lrbl
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info = psb_success_
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bwl = 0
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bwu = 0
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prf = 0
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select type (aa=>mat%a)
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class is (psb_z_csr_sparse_mat)
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do i=1, aa%get_nrows()
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lrbl = 0
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lrbu = 0
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do j = aa%irp(i), aa%irp(i+1) - 1
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lrbl = max(lrbl,i-aa%ja(j))
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lrbu = max(lrbu,aa%ja(j)-i)
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end do
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prf = prf + lrbl+lrbu
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bwu = max(bwu,lrbu)
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bwl = max(bwl,lrbu)
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end do
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class default
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do i=1, aa%get_nrows()
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lrbl = 0
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lrbu = 0
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call aa%csget(i,i,nz,irow,icol,val,info)
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if (info /= psb_success_) return
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do j=1, nz
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lrbl = max(lrbl,i-icol(j))
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lrbu = max(lrbu,icol(j)-i)
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end do
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prf = prf + lrbl+lrbu
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bwu = max(bwu,lrbu)
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bwl = max(bwl,lrbu)
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end do
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end select
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end subroutine psb_z_cmp_bwpf
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