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psblas3/base/modules/psb_d_sort_mod.f90

541 lines
17 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.4
!!$ (C) Copyright 2006, 2010, 2015
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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.
!!$
!!$
!
! Sorting routines
! References:
! D. Knuth
! The Art of Computer Programming, vol. 3
! Addison-Wesley
!
! Aho, Hopcroft, Ullman
! Data Structures and Algorithms
! Addison-Wesley
!
module psb_d_sort_mod
use psb_const_mod
type psb_d_heap
integer(psb_ipk_) :: last, dir
real(psb_dpk_), allocatable :: keys(:)
contains
procedure, pass(heap) :: init => psb_d_init_heap
procedure, pass(heap) :: howmany => psb_d_howmany
procedure, pass(heap) :: insert => psb_d_insert_heap
procedure, pass(heap) :: get_first => psb_d_heap_get_first
procedure, pass(heap) :: dump => psb_d_dump_heap
procedure, pass(heap) :: free => psb_d_free_heap
end type psb_d_heap
type psb_d_idx_heap
integer(psb_ipk_) :: last, dir
real(psb_dpk_), allocatable :: keys(:)
integer(psb_ipk_), allocatable :: idxs(:)
contains
procedure, pass(heap) :: init => psb_d_idx_init_heap
procedure, pass(heap) :: howmany => psb_d_idx_howmany
procedure, pass(heap) :: insert => psb_d_idx_insert_heap
procedure, pass(heap) :: get_first => psb_d_idx_heap_get_first
procedure, pass(heap) :: dump => psb_d_idx_dump_heap
procedure, pass(heap) :: free => psb_d_idx_free_heap
end type psb_d_idx_heap
interface psb_msort
subroutine psb_dmsort(x,ix,dir,flag)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), optional, intent(in) :: dir, flag
integer(psb_ipk_), optional, intent(inout) :: ix(:)
end subroutine psb_dmsort
end interface psb_msort
psblas3: base/modules/Makefile base/modules/psb_c_sort_mod.f90 base/modules/psb_d_sort_mod.f90 base/modules/psb_i_sort_mod.f90 base/modules/psb_s_sort_mod.f90 base/modules/psb_sort_mod.f90 base/modules/psb_z_sort_mod.f90 base/serial/Makefile base/serial/aux/Makefile base/serial/impl/psb_c_coo_impl.f90 base/serial/impl/psb_c_csc_impl.f90 base/serial/impl/psb_c_csr_impl.f90 base/serial/impl/psb_d_coo_impl.f90 base/serial/impl/psb_d_csc_impl.f90 base/serial/impl/psb_d_csr_impl.f90 base/serial/impl/psb_s_coo_impl.f90 base/serial/impl/psb_s_csc_impl.f90 base/serial/impl/psb_s_csr_impl.f90 base/serial/impl/psb_z_coo_impl.f90 base/serial/impl/psb_z_csc_impl.f90 base/serial/impl/psb_z_csr_impl.f90 base/serial/sort/Makefile base/serial/sort/psb_c_hsort_impl.f90 base/serial/sort/psb_c_isort_impl.f90 base/serial/sort/psb_c_msort_impl.f90 base/serial/sort/psb_c_qsort_impl.f90 base/serial/sort/psb_d_hsort_impl.f90 base/serial/sort/psb_d_isort_impl.f90 base/serial/sort/psb_d_msort_impl.f90 base/serial/sort/psb_d_qsort_impl.f90 base/serial/sort/psb_i_hsort_impl.f90 base/serial/sort/psb_i_isort_impl.f90 base/serial/sort/psb_i_msort_impl.f90 base/serial/sort/psb_i_qsort_impl.f90 base/serial/sort/psb_s_isort_impl.f90 base/serial/sort/psb_s_msort_impl.f90 base/serial/sort/psb_s_qsort_impl.f90 base/serial/sort/psb_z_hsort_impl.f90 base/serial/sort/psb_z_isort_impl.f90 base/serial/sort/psb_z_msort_impl.f90 base/serial/sort/psb_z_qsort_impl.f90 base/serial/sort/psi_alcx_mod.f90 New sort implementations. Fix all methods calling them.
10 years ago
interface
subroutine psi_d_msort_up(n,k,l,iret)
import
implicit none
integer(psb_ipk_) :: n, iret
real(psb_dpk_) :: k(n)
integer(psb_ipk_) :: l(0:n+1)
end subroutine psi_d_msort_up
subroutine psi_d_msort_dw(n,k,l,iret)
import
implicit none
integer(psb_ipk_) :: n, iret
real(psb_dpk_) :: k(n)
integer(psb_ipk_) :: l(0:n+1)
end subroutine psi_d_msort_dw
end interface
interface
subroutine psi_d_amsort_up(n,k,l,iret)
import
implicit none
integer(psb_ipk_) :: n, iret
real(psb_dpk_) :: k(n)
integer(psb_ipk_) :: l(0:n+1)
end subroutine psi_d_amsort_up
subroutine psi_d_amsort_dw(n,k,l,iret)
import
implicit none
integer(psb_ipk_) :: n, iret
real(psb_dpk_) :: k(n)
integer(psb_ipk_) :: l(0:n+1)
end subroutine psi_d_amsort_dw
end interface
interface psb_qsort
subroutine psb_dqsort(x,ix,dir,flag)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), optional, intent(in) :: dir, flag
integer(psb_ipk_), optional, intent(inout) :: ix(:)
end subroutine psb_dqsort
end interface psb_qsort
interface psb_isort
subroutine psb_disort(x,ix,dir,flag)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), optional, intent(in) :: dir, flag
integer(psb_ipk_), optional, intent(inout) :: ix(:)
end subroutine psb_disort
end interface psb_isort
interface psb_hsort
subroutine psb_dhsort(x,ix,dir,flag)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), optional, intent(in) :: dir, flag
integer(psb_ipk_), optional, intent(inout) :: ix(:)
end subroutine psb_dhsort
end interface psb_hsort
interface
subroutine psi_d_insert_heap(key,last,heap,dir,info)
import
implicit none
!
! Input:
! key: the new value
! last: pointer to the last occupied element in heap
! heap: the heap
! dir: sorting direction
real(psb_dpk_), intent(in) :: key
real(psb_dpk_), intent(inout) :: heap(:)
integer(psb_ipk_), intent(in) :: dir
integer(psb_ipk_), intent(inout) :: last
integer(psb_ipk_), intent(out) :: info
end subroutine psi_d_insert_heap
end interface
interface
subroutine psi_d_idx_insert_heap(key,index,last,heap,idxs,dir,info)
import
implicit none
!
! Input:
! key: the new value
! last: pointer to the last occupied element in heap
! heap: the heap
! dir: sorting direction
real(psb_dpk_), intent(in) :: key
real(psb_dpk_), intent(inout) :: heap(:)
integer(psb_ipk_), intent(in) :: index
integer(psb_ipk_), intent(in) :: dir
integer(psb_ipk_), intent(inout) :: idxs(:)
integer(psb_ipk_), intent(inout) :: last
integer(psb_ipk_), intent(out) :: info
end subroutine psi_d_idx_insert_heap
end interface
interface
subroutine psi_d_heap_get_first(key,last,heap,dir,info)
import
implicit none
real(psb_dpk_), intent(inout) :: key
integer(psb_ipk_), intent(inout) :: last
integer(psb_ipk_), intent(in) :: dir
real(psb_dpk_), intent(inout) :: heap(:)
integer(psb_ipk_), intent(out) :: info
end subroutine psi_d_heap_get_first
end interface
interface
subroutine psi_d_idx_heap_get_first(key,index,last,heap,idxs,dir,info)
import
real(psb_dpk_), intent(inout) :: key
integer(psb_ipk_), intent(out) :: index
real(psb_dpk_), intent(inout) :: heap(:)
integer(psb_ipk_), intent(in) :: dir
integer(psb_ipk_), intent(inout) :: last
integer(psb_ipk_), intent(inout) :: idxs(:)
integer(psb_ipk_), intent(out) :: info
end subroutine psi_d_idx_heap_get_first
end interface
interface
subroutine psi_disrx_up(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_disrx_up
subroutine psi_disrx_dw(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_disrx_dw
subroutine psi_disr_up(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_disr_up
subroutine psi_disr_dw(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_disr_dw
subroutine psi_daisrx_up(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daisrx_up
subroutine psi_daisrx_dw(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daisrx_dw
subroutine psi_daisr_up(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daisr_up
subroutine psi_daisr_dw(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daisr_dw
end interface
interface
subroutine psi_dqsrx_up(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_dqsrx_up
subroutine psi_dqsrx_dw(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_dqsrx_dw
subroutine psi_dqsr_up(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_dqsr_up
subroutine psi_dqsr_dw(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_dqsr_dw
subroutine psi_daqsrx_up(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daqsrx_up
subroutine psi_daqsrx_dw(n,x,ix)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(inout) :: ix(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daqsrx_dw
subroutine psi_daqsr_up(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daqsr_up
subroutine psi_daqsr_dw(n,x)
import
real(psb_dpk_), intent(inout) :: x(:)
integer(psb_ipk_), intent(in) :: n
end subroutine psi_daqsr_dw
end interface
contains
subroutine psb_d_init_heap(heap,info,dir)
use psb_realloc_mod, only : psb_ensure_size
implicit none
class(psb_d_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: dir
info = psb_success_
heap%last=0
if (present(dir)) then
heap%dir = dir
else
heap%dir = psb_sort_up_
endif
select case(heap%dir)
case (psb_sort_up_,psb_sort_down_,psb_asort_up_,psb_asort_down_)
! ok, do nothing
case default
write(psb_err_unit,*) 'Invalid direction, defaulting to psb_sort_up_'
heap%dir = psb_sort_up_
end select
call psb_ensure_size(psb_heap_resize,heap%keys,info)
return
end subroutine psb_d_init_heap
function psb_d_howmany(heap) result(res)
implicit none
class(psb_d_heap), intent(in) :: heap
integer(psb_ipk_) :: res
res = heap%last
end function psb_d_howmany
subroutine psb_d_insert_heap(key,heap,info)
use psb_realloc_mod, only : psb_ensure_size
implicit none
real(psb_dpk_), intent(in) :: key
class(psb_d_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
info = psb_success_
if (heap%last < 0) then
write(psb_err_unit,*) 'Invalid last in heap ',heap%last
info = heap%last
return
endif
call psb_ensure_size(heap%last+1,heap%keys,info,addsz=psb_heap_resize)
if (info /= psb_success_) then
write(psb_err_unit,*) 'Memory allocation failure in heap_insert'
info = -5
return
end if
call psi_d_insert_heap(key,&
& heap%last,heap%keys,heap%dir,info)
return
end subroutine psb_d_insert_heap
subroutine psb_d_heap_get_first(key,heap,info)
implicit none
class(psb_d_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
real(psb_dpk_), intent(out) :: key
info = psb_success_
call psi_d_heap_get_first(key,&
& heap%last,heap%keys,heap%dir,info)
return
end subroutine psb_d_heap_get_first
subroutine psb_d_dump_heap(iout,heap,info)
implicit none
class(psb_d_heap), intent(in) :: heap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in) :: iout
info = psb_success_
if (iout < 0) then
write(psb_err_unit,*) 'Invalid file '
info =-1
return
end if
write(iout,*) 'Heap direction ',heap%dir
write(iout,*) 'Heap size ',heap%last
if ((heap%last > 0).and.((.not.allocated(heap%keys)).or.&
& (size(heap%keys)<heap%last))) then
write(iout,*) 'Inconsistent size/allocation status!!'
else
write(iout,*) heap%keys(1:heap%last)
end if
end subroutine psb_d_dump_heap
subroutine psb_d_free_heap(heap,info)
implicit none
class(psb_d_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
info=psb_success_
if (allocated(heap%keys)) deallocate(heap%keys,stat=info)
end subroutine psb_d_free_heap
subroutine psb_d_idx_init_heap(heap,info,dir)
use psb_realloc_mod, only : psb_ensure_size
implicit none
class(psb_d_idx_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: dir
info = psb_success_
heap%last=0
if (present(dir)) then
heap%dir = dir
else
heap%dir = psb_sort_up_
endif
select case(heap%dir)
case (psb_sort_up_,psb_sort_down_,psb_asort_up_,psb_asort_down_)
! ok, do nothing
case default
write(psb_err_unit,*) 'Invalid direction, defaulting to psb_sort_up_'
heap%dir = psb_sort_up_
end select
call psb_ensure_size(psb_heap_resize,heap%keys,info)
call psb_ensure_size(psb_heap_resize,heap%idxs,info)
return
end subroutine psb_d_idx_init_heap
function psb_d_idx_howmany(heap) result(res)
implicit none
class(psb_d_idx_heap), intent(in) :: heap
integer(psb_ipk_) :: res
res = heap%last
end function psb_d_idx_howmany
subroutine psb_d_idx_insert_heap(key,index,heap,info)
use psb_realloc_mod, only : psb_ensure_size
implicit none
real(psb_dpk_), intent(in) :: key
integer(psb_ipk_), intent(in) :: index
class(psb_d_idx_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
info = psb_success_
if (heap%last < 0) then
write(psb_err_unit,*) 'Invalid last in heap ',heap%last
info = heap%last
return
endif
call psb_ensure_size(heap%last+1,heap%keys,info,addsz=psb_heap_resize)
if (info == psb_success_) &
& call psb_ensure_size(heap%last+1,heap%idxs,info,addsz=psb_heap_resize)
if (info /= psb_success_) then
write(psb_err_unit,*) 'Memory allocation failure in heap_insert'
info = -5
return
end if
call psi_d_idx_insert_heap(key,index,&
& heap%last,heap%keys,heap%idxs,heap%dir,info)
return
end subroutine psb_d_idx_insert_heap
subroutine psb_d_idx_heap_get_first(key,index,heap,info)
implicit none
class(psb_d_idx_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: index,info
real(psb_dpk_), intent(out) :: key
info = psb_success_
call psi_d_idx_heap_get_first(key,index,&
& heap%last,heap%keys,heap%idxs,heap%dir,info)
return
end subroutine psb_d_idx_heap_get_first
subroutine psb_d_idx_dump_heap(iout,heap,info)
implicit none
class(psb_d_idx_heap), intent(in) :: heap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in) :: iout
info = psb_success_
if (iout < 0) then
write(psb_err_unit,*) 'Invalid file '
info =-1
return
end if
write(iout,*) 'Heap direction ',heap%dir
write(iout,*) 'Heap size ',heap%last
if ((heap%last > 0).and.((.not.allocated(heap%keys)).or.&
& (size(heap%keys)<heap%last))) then
write(iout,*) 'Inconsistent size/allocation status!!'
else if ((heap%last > 0).and.((.not.allocated(heap%idxs)).or.&
& (size(heap%idxs)<heap%last))) then
write(iout,*) 'Inconsistent size/allocation status!!'
else
write(iout,*) heap%keys(1:heap%last)
write(iout,*) heap%idxs(1:heap%last)
end if
end subroutine psb_d_idx_dump_heap
subroutine psb_d_idx_free_heap(heap,info)
implicit none
class(psb_d_idx_heap), intent(inout) :: heap
integer(psb_ipk_), intent(out) :: info
info=psb_success_
if (allocated(heap%keys)) deallocate(heap%keys,stat=info)
if ((info == psb_success_).and.(allocated(heap%idxs))) deallocate(heap%idxs,stat=info)
end subroutine psb_d_idx_free_heap
end module psb_d_sort_mod