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74 lines
2.9 KiB
Fortran
74 lines
2.9 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006, 2010, 2015, 2017
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! Salvatore Filippone Cranfield University
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! Alfredo Buttari CNRS-IRIT, Toulouse
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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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integer function psi_exist_ovr_elem(ovr_elem, dim_list,elem_searched)
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use psb_const_mod
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! PURPOSE:
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! == = ====
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!
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! If ELEM_SEARCHED exist in the list OVR_ELEM returns its position in
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! the list, else returns -1
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!
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!
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! INPUT
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! == = ===
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! OVRLAP_ELEMENT_D.: Contains for all overlap points belonging to
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! the current process:
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! 1. overlap point index
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! 2. Number of domains sharing that overlap point
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! the end is marked by a -1...............................
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!
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! DIM_LIST..........: Dimension of list OVRLAP_ELEMENT_D
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!
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! ELEM_SEARCHED.....:point's Local index identifier to be searched.
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implicit none
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! ....Scalars parameters....
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integer(psb_ipk_) :: dim_list,elem_searched
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! ...array parameters....
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integer(psb_ipk_) :: ovr_elem(dim_list,*)
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! ...local scalars....
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integer(psb_ipk_) :: i
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i=1
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do while ((i.le.dim_list).and.(ovr_elem(i,1).ne.elem_searched))
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i=i+1
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enddo
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if ((i.le.dim_list).and.(ovr_elem(i,1).eq.elem_searched)) then
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psi_exist_ovr_elem=i
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else
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psi_exist_ovr_elem=-1
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endif
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end function psi_exist_ovr_elem
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