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129 lines
5.0 KiB
Fortran
129 lines
5.0 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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!
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! package: psb_s_rb_idx_tree_mod
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!
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! Red black tree implementation ordered by index
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!
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! Each node contains and index and a double precision value
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!
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! The tree should always be well balanced
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!
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! inserting a node with an existing index will
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! add up the new value to the old one
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! Contributed by Dimitri Walther
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!
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module psb_s_rb_idx_tree_mod
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use psb_const_mod
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implicit none
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type :: psb_s_rb_idx_node
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integer(psb_ipk_) :: idx
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real(psb_spk_) :: val
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type(psb_s_rb_idx_node), pointer :: left, right, parent
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logical :: is_red
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end type psb_s_rb_idx_node
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type :: psb_s_rb_idx_tree
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type(psb_s_rb_idx_node), pointer :: root
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integer(psb_ipk_) :: nnz
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contains
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procedure :: insert => psb_s_rb_idx_tree_insert
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end type psb_s_rb_idx_tree
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interface psb_rb_idx_tree_insert
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subroutine psb_s_rb_idx_tree_insert(this, idx, val)
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import :: psb_ipk_, psb_spk_, psb_s_rb_idx_tree
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implicit none
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class(psb_s_rb_idx_tree), intent(inout) :: this
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integer(psb_ipk_), intent(in) :: idx
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real(psb_spk_), intent(in) :: val
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end subroutine psb_s_rb_idx_tree_insert
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end interface psb_rb_idx_tree_insert
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interface psb_rb_idx_tree_scalar_sparse_row_mul
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subroutine psb_s_rb_idx_tree_scalar_sparse_row_mul(tree, scalar, mat, row_num)
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use psb_s_csr_mat_mod, only : psb_s_csr_sparse_mat
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import :: psb_ipk_, psb_spk_, psb_s_rb_idx_tree
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implicit none
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type(psb_s_rb_idx_tree), intent(inout) :: tree
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real(psb_spk_), intent(in) :: scalar
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type(psb_s_csr_sparse_mat), intent(in) :: mat
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integer(psb_ipk_), intent(in) :: row_num
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end subroutine psb_s_rb_idx_tree_scalar_sparse_row_mul
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end interface psb_rb_idx_tree_scalar_sparse_row_mul
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interface psb_rb_idx_tree_merge
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subroutine psb_s_rb_idx_tree_merge(trees, mat)
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use psb_s_csr_mat_mod, only : psb_s_csr_sparse_mat
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import :: psb_s_rb_idx_tree
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type(psb_s_rb_idx_tree), allocatable, intent(inout) :: trees(:)
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type(psb_s_csr_sparse_mat), intent(inout) :: mat
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end subroutine psb_s_rb_idx_tree_merge
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end interface psb_rb_idx_tree_merge
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interface psb_rb_idx_tree_fix_insertion
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subroutine psb_s_rb_idx_tree_fix_insertion(this, node)
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import :: psb_s_rb_idx_tree, psb_s_rb_idx_node
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implicit none
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class(psb_s_rb_idx_tree), intent(inout) :: this
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type(psb_s_rb_idx_node), pointer, intent(inout) :: node
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end subroutine psb_s_rb_idx_tree_fix_insertion
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end interface psb_rb_idx_tree_fix_insertion
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interface psb_rb_idx_tree_swap_colors
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subroutine psb_s_rb_idx_tree_swap_colors(n1, n2)
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import :: psb_s_rb_idx_node
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implicit none
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type(psb_s_rb_idx_node), pointer, intent(inout) :: n1, n2
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end subroutine psb_s_rb_idx_tree_swap_colors
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end interface psb_rb_idx_tree_swap_colors
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interface psb_rb_idx_tree_rotate_right
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subroutine psb_s_rb_idx_tree_rotate_right(node)
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import :: psb_s_rb_idx_node
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implicit none
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type(psb_s_rb_idx_node), pointer, intent(inout) :: node
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end subroutine psb_s_rb_idx_tree_rotate_right
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end interface psb_rb_idx_tree_rotate_right
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interface psb_rb_idx_tree_rotate_left
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subroutine psb_s_rb_idx_tree_rotate_left(node)
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import :: psb_s_rb_idx_node
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implicit none
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type(psb_s_rb_idx_node), pointer, intent(inout) :: node
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end subroutine psb_s_rb_idx_tree_rotate_left
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end interface psb_rb_idx_tree_rotate_left
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end module psb_s_rb_idx_tree_mod
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