100 lines
3.7 KiB
C++
100 lines
3.7 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 <Kokkos_Core.hpp>
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#ifndef TESTCXX11DEDUCTION_HPP
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#define TESTCXX11DEDUCTION_HPP
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namespace TestCXX11 {
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struct TestReductionDeductionTagA {};
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struct TestReductionDeductionTagB {};
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template < class ExecSpace >
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struct TestReductionDeductionFunctor {
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// KOKKOS_INLINE_FUNCTION
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// void operator()( long i, long & value ) const
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// { value += i + 1; }
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KOKKOS_INLINE_FUNCTION
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void operator()( TestReductionDeductionTagA, long i, long & value ) const
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{ value += ( 2 * i + 1 ) + ( 2 * i + 2 ); }
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KOKKOS_INLINE_FUNCTION
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void operator()( const TestReductionDeductionTagB &, const long i, long & value ) const
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{ value += ( 3 * i + 1 ) + ( 3 * i + 2 ) + ( 3 * i + 3 ); }
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};
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template< class ExecSpace >
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void test_reduction_deduction()
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{
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typedef TestReductionDeductionFunctor< ExecSpace > Functor;
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const long N = 50;
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// const long answer = N % 2 ? ( N * ( ( N + 1 ) / 2 ) ) : ( ( N / 2 ) * ( N + 1 ) );
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const long answerA = N % 2 ? ( ( 2 * N ) * ( ( ( 2 * N ) + 1 ) / 2 ) ) : ( ( ( 2 * N ) / 2 ) * ( ( 2 * N ) + 1 ) );
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const long answerB = N % 2 ? ( ( 3 * N ) * ( ( ( 3 * N ) + 1 ) / 2 ) ) : ( ( ( 3 * N ) / 2 ) * ( ( 3 * N ) + 1 ) );
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long result = 0;
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// Kokkos::parallel_reduce( Kokkos::RangePolicy< ExecSpace >( 0, N ), Functor(), result );
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// ASSERT_EQ( answer, result );
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Kokkos::parallel_reduce( Kokkos::RangePolicy< ExecSpace, TestReductionDeductionTagA >( 0, N ), Functor(), result );
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ASSERT_EQ( answerA, result );
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Kokkos::parallel_reduce( Kokkos::RangePolicy< ExecSpace, TestReductionDeductionTagB >( 0, N ), Functor(), result );
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ASSERT_EQ( answerB, result );
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}
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} // namespace TestCXX11
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namespace Test {
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TEST_F( TEST_CATEGORY, reduction_deduction )
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{
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TestCXX11::test_reduction_deduction< TEST_EXECSPACE >();
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}
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}
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#endif
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