258 lines
9.1 KiB
C++
258 lines
9.1 KiB
C++
/*
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//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 3.0
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// Copyright (2020) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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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 are
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// met:
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//
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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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//
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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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//
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// 3. Neither the name of the Corporation nor the names of the
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
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//
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// ************************************************************************
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//@HEADER
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*/
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#ifndef KOKKOS_IMPL_STATICCRSGRAPH_FACTORY_HPP
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#define KOKKOS_IMPL_STATICCRSGRAPH_FACTORY_HPP
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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namespace Kokkos {
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#ifdef KOKKOS_ENABLE_DEPRECATED_CODE
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template <class DataType, class Arg1Type, class Arg2Type, typename SizeType,
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class Arg3Type>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType,
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Arg3Type>::HostMirror
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create_mirror_view(
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const StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType, Arg3Type>&
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view,
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typename std::enable_if<ViewTraits<DataType, Arg1Type, Arg2Type,
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Arg3Type>::is_hostspace>::type* = 0) {
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return view;
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}
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#else
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template <class DataType, class Arg1Type, class Arg2Type, class Arg3Type,
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typename SizeType>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type,
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SizeType>::HostMirror
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create_mirror_view(
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const StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type, SizeType>&
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view,
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typename std::enable_if<ViewTraits<DataType, Arg1Type, Arg2Type,
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Arg3Type>::is_hostspace>::type* = 0) {
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return view;
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}
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#endif
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#ifdef KOKKOS_ENABLE_DEPRECATED_CODE
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template <class DataType, class Arg1Type, class Arg2Type, typename SizeType,
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class Arg3Type>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType,
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Arg3Type>::HostMirror
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create_mirror(const StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType,
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Arg3Type>& view) {
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// Force copy:
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// typedef Impl::ViewAssignment< Impl::ViewDefault > alloc ; // unused
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typedef StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType, Arg3Type>
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staticcrsgraph_type;
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#else
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template <class DataType, class Arg1Type, class Arg2Type, class Arg3Type,
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typename SizeType>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type,
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SizeType>::HostMirror
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create_mirror(const StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type,
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SizeType>& view) {
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// Force copy:
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// typedef Impl::ViewAssignment< Impl::ViewDefault > alloc ; // unused
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typedef StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type, SizeType>
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staticcrsgraph_type;
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#endif
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typename staticcrsgraph_type::HostMirror tmp;
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typename staticcrsgraph_type::row_map_type::HostMirror tmp_row_map =
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create_mirror(view.row_map);
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typename staticcrsgraph_type::row_block_type::HostMirror
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tmp_row_block_offsets = create_mirror(view.row_block_offsets);
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// Allocation to match:
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tmp.row_map = tmp_row_map; // Assignment of 'const' from 'non-const'
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tmp.entries = create_mirror(view.entries);
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tmp.row_block_offsets =
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tmp_row_block_offsets; // Assignment of 'const' from 'non-const'
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// Deep copy:
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deep_copy(tmp_row_map, view.row_map);
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deep_copy(tmp.entries, view.entries);
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deep_copy(tmp_row_block_offsets, view.row_block_offsets);
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return tmp;
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}
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#ifdef KOKKOS_ENABLE_DEPRECATED_CODE
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template <class DataType, class Arg1Type, class Arg2Type, typename SizeType,
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class Arg3Type>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType,
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Arg3Type>::HostMirror
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create_mirror_view(
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const StaticCrsGraph<DataType, Arg1Type, Arg2Type, SizeType, Arg3Type>&
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view,
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typename std::enable_if<!ViewTraits<DataType, Arg1Type, Arg2Type,
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Arg3Type>::is_hostspace>::type* = 0)
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#else
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template <class DataType, class Arg1Type, class Arg2Type, class Arg3Type,
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typename SizeType>
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inline typename StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type,
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SizeType>::HostMirror
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create_mirror_view(
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const StaticCrsGraph<DataType, Arg1Type, Arg2Type, Arg3Type, SizeType>&
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view,
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typename std::enable_if<!ViewTraits<DataType, Arg1Type, Arg2Type,
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Arg3Type>::is_hostspace>::type* = 0)
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#endif
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{
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return create_mirror(view);
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}
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} // namespace Kokkos
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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namespace Kokkos {
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template <class StaticCrsGraphType, class InputSizeType>
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inline typename StaticCrsGraphType::staticcrsgraph_type create_staticcrsgraph(
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const std::string& label, const std::vector<InputSizeType>& input) {
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typedef StaticCrsGraphType output_type;
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// typedef std::vector< InputSizeType > input_type ; // unused
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typedef typename output_type::entries_type entries_type;
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typedef View<typename output_type::size_type[],
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typename output_type::array_layout,
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typename output_type::execution_space,
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typename output_type::memory_traits>
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work_type;
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output_type output;
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// Create the row map:
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const size_t length = input.size();
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{
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work_type row_work("tmp", length + 1);
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typename work_type::HostMirror row_work_host = create_mirror_view(row_work);
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size_t sum = 0;
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row_work_host[0] = 0;
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for (size_t i = 0; i < length; ++i) {
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row_work_host[i + 1] = sum += input[i];
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}
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deep_copy(row_work, row_work_host);
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output.entries = entries_type(label, sum);
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output.row_map = row_work;
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}
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return output;
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}
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//----------------------------------------------------------------------------
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template <class StaticCrsGraphType, class InputSizeType>
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inline typename StaticCrsGraphType::staticcrsgraph_type create_staticcrsgraph(
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const std::string& label,
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const std::vector<std::vector<InputSizeType> >& input) {
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typedef StaticCrsGraphType output_type;
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typedef typename output_type::entries_type entries_type;
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static_assert(entries_type::rank == 1, "Graph entries view must be rank one");
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typedef View<typename output_type::size_type[],
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typename output_type::array_layout,
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typename output_type::execution_space,
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typename output_type::memory_traits>
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work_type;
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output_type output;
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// Create the row map:
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const size_t length = input.size();
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{
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work_type row_work("tmp", length + 1);
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typename work_type::HostMirror row_work_host = create_mirror_view(row_work);
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size_t sum = 0;
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row_work_host[0] = 0;
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for (size_t i = 0; i < length; ++i) {
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row_work_host[i + 1] = sum += input[i].size();
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}
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deep_copy(row_work, row_work_host);
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output.entries = entries_type(label, sum);
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output.row_map = row_work;
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}
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// Fill in the entries:
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{
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typename entries_type::HostMirror host_entries =
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create_mirror_view(output.entries);
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size_t sum = 0;
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for (size_t i = 0; i < length; ++i) {
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for (size_t j = 0; j < input[i].size(); ++j, ++sum) {
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host_entries(sum) = input[i][j];
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}
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}
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deep_copy(output.entries, host_entries);
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}
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return output;
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}
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} // namespace Kokkos
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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#endif /* #ifndef KOKKOS_IMPL_CRSARRAY_FACTORY_HPP */
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