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292 lines
8.1 KiB
Fortran
292 lines
8.1 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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subroutine psi_i_inner_cnvs(x,hashmask,hashv,glb_lc)
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use psi_mod, psi_protect_name => psi_i_inner_cnvs
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integer(psb_ipk_), intent(in) :: hashmask,hashv(0:),glb_lc(:,:)
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integer(psb_ipk_), intent(inout) :: x
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integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
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!
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! When a large descriptor is assembled the indices
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! are kept in a (hashed) list of ordered lists.
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! Thus we first hash the index, then we do a binary search on the
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! ordered sublist. The hashing is based on the low-order bits
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! for a width of psb_hash_bits
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!
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key = x
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ih = iand(key,hashmask)
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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x = glb_lc(tmp,2)
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else
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x = tmp
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end if
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end subroutine psi_i_inner_cnvs
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subroutine psi_i_inner_cnvs2(x,y,hashmask,hashv,glb_lc)
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use psi_mod, psi_protect_name => psi_i_inner_cnvs2
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integer(psb_ipk_), intent(in) :: hashmask,hashv(0:),glb_lc(:,:)
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integer(psb_ipk_), intent(in) :: x
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integer(psb_ipk_), intent(out) :: y
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integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
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!
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! When a large descriptor is assembled the indices
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! are kept in a (hashed) list of ordered lists.
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! Thus we first hash the index, then we do a binary search on the
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! ordered sublist. The hashing is based on the low-order bits
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! for a width of psb_hash_bits
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!
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key = x
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ih = iand(key,hashmask)
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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y = glb_lc(tmp,2)
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else
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y = tmp
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end if
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end subroutine psi_i_inner_cnvs2
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subroutine psi_i_inner_cnv1(n,x,hashmask,hashv,glb_lc,mask)
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use psi_mod, psi_protect_name => psi_i_inner_cnv1
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integer(psb_ipk_), intent(in) :: n,hashmask,hashv(0:),glb_lc(:,:)
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logical, intent(in), optional :: mask(:)
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integer(psb_ipk_), intent(inout) :: x(:)
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integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
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!
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! When a large descriptor is assembled the indices
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! are kept in a (hashed) list of ordered lists.
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! Thus we first hash the index, then we do a binary search on the
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! ordered sublist. The hashing is based on the low-order bits
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! for a width of psb_hash_bits
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!
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if (present(mask)) then
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do i=1, n
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if (mask(i)) then
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key = x(i)
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ih = iand(key,hashmask)
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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x(i) = glb_lc(tmp,2)
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else
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x(i) = tmp
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end if
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end if
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end do
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else
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do i=1, n
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key = x(i)
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ih = iand(key,hashmask)
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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x(i) = glb_lc(tmp,2)
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else
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x(i) = tmp
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end if
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end do
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end if
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end subroutine psi_i_inner_cnv1
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subroutine psi_i_inner_cnv2(n,x,y,hashmask,hashv,glb_lc,mask)
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use psi_mod, psi_protect_name => psi_i_inner_cnv2
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integer(psb_ipk_), intent(in) :: n, hashmask,hashv(0:),glb_lc(:,:)
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logical, intent(in),optional :: mask(:)
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integer(psb_ipk_), intent(in) :: x(:)
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integer(psb_ipk_), intent(out) :: y(:)
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integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
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!
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! When a large descriptor is assembled the indices
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! are kept in a (hashed) list of ordered lists.
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! Thus we first hash the index, then we do a binary search on the
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! ordered sublist. The hashing is based on the low-order bits
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! for a width of psb_hash_bits
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!
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if (present(mask)) then
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do i=1, n
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if (mask(i)) then
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key = x(i)
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ih = iand(key,hashmask)
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if (ih > ubound(hashv,1) ) then
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write(psb_err_unit,*) ' In inner cnv: ',ih,ubound(hashv)
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end if
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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y(i) = glb_lc(tmp,2)
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else
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y(i) = tmp
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end if
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end if
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end do
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else
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do i=1, n
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key = x(i)
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ih = iand(key,hashmask)
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if (ih > ubound(hashv,1) ) then
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write(psb_err_unit,*) ' In inner cnv: ',ih,ubound(hashv)
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end if
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
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lm = (lb+ub)/2
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if (key == glb_lc(lm,1)) then
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tmp = lm
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exit
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
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else
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lb = lm + 1
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end if
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end do
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else
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tmp = -1
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end if
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if (tmp > 0) then
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y(i) = glb_lc(tmp,2)
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else
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y(i) = tmp
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end if
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end do
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end if
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end subroutine psi_i_inner_cnv2
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