127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
/*
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//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 2.0
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// Copyright (2014) Sandia Corporation
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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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 SANDIA CORPORATION "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 SANDIA CORPORATION 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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#include <gtest/gtest.h>
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#include <Kokkos_Core.hpp>
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#include <stdexcept>
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#include <sstream>
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#include <iostream>
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namespace Test {
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template< class Space >
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struct NestedView {
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Kokkos::View< int*, Space > member;
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public:
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KOKKOS_INLINE_FUNCTION
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NestedView() : member() {}
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KOKKOS_INLINE_FUNCTION
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NestedView & operator=( const Kokkos::View< int*, Space > & lhs )
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{
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member = lhs;
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if ( member.extent(0) ) Kokkos::atomic_add( & member( 0 ), 1 );
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return *this;
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}
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KOKKOS_INLINE_FUNCTION
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~NestedView()
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{
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if ( member.extent(0) ) {
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Kokkos::atomic_add( & member( 0 ), -1 );
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}
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}
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};
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template< class Space >
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struct NestedViewFunctor {
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Kokkos::View< NestedView<Space> *, Space > nested;
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Kokkos::View< int*, Space > array;
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NestedViewFunctor(
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const Kokkos::View< NestedView<Space> *, Space > & arg_nested,
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const Kokkos::View< int*, Space > & arg_array )
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: nested( arg_nested )
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, array( arg_array )
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{}
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KOKKOS_INLINE_FUNCTION
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void operator()( int i ) const { nested[i] = array; }
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};
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template< class Space >
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void view_nested_view()
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{
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Kokkos::View< int*, Space > tracking( "tracking", 1 );
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typename Kokkos::View< int*, Space >::HostMirror host_tracking = Kokkos::create_mirror( tracking );
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{
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Kokkos::View< NestedView<Space> *, Space > a( "a_nested_view", 2 );
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Kokkos::parallel_for( Kokkos::RangePolicy< Space >( 0, 2 ), NestedViewFunctor< Space >( a, tracking ) );
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Kokkos::deep_copy( host_tracking, tracking );
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ASSERT_EQ( 2, host_tracking( 0 ) );
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Kokkos::View< NestedView<Space> *, Space > b( "b_nested_view", 2 );
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Kokkos::parallel_for( Kokkos::RangePolicy< Space >( 0, 2 ), NestedViewFunctor< Space >( b, tracking ) );
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Kokkos::deep_copy( host_tracking, tracking );
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ASSERT_EQ( 4, host_tracking( 0 ) );
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}
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Kokkos::deep_copy( host_tracking, tracking );
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ASSERT_EQ( 0, host_tracking( 0 ) );
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}
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TEST_F( TEST_CATEGORY, view_nested_view )
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{
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view_nested_view< TEST_EXECSPACE >();
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}
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} // namespace Test
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