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lammps/lib/kokkos/containers/unit_tests/TestViewCtorPropEmbeddedDim.hpp
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TestViewCtorPropEmbeddedDim.hpp
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/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include <cstdio>
#include <gtest/gtest.h>
#include <Kokkos_Core.hpp>
#include <Kokkos_DynRankView.hpp>
#include <type_traits>
#include <typeinfo>
namespace Test {
namespace {
template <typename ExecSpace >
struct TestViewCtorProp_EmbeddedDim {
using ViewIntType = typename Kokkos::View< int**, ExecSpace >;
using ViewDoubleType = typename Kokkos::View< double*, ExecSpace >;
using DynRankViewIntType = typename Kokkos::DynRankView< int, ExecSpace >;
using DynRankViewDoubleType = typename Kokkos::DynRankView< double, ExecSpace >;
// Cuda 7.0 has issues with using a lamda in parallel_for to initialize the view - replace with this functor
template < class ViewType >
struct Functor {
ViewType v;
Functor( const ViewType & v_ ) : v(v_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const int i ) const {
v(i) = i;
}
};
static void test_vcpt( const int N0, const int N1 )
{
// Create two views to test
{
using VIT = typename TestViewCtorProp_EmbeddedDim::ViewIntType ;
using VDT = typename TestViewCtorProp_EmbeddedDim::ViewDoubleType ;
VIT vi1("vi1", N0, N1);
VDT vd1("vd1", N0);
// TEST: Test for common type between two views, one with type double, other with type int
// Deduce common value_type and construct a view with that type
{
// Two views
auto view_alloc_arg = Kokkos::common_view_alloc_prop(vi1, vd1);
typedef typename decltype( view_alloc_arg )::value_type CommonViewValueType;
typedef typename Kokkos::View< CommonViewValueType*, ExecSpace > CVT;
typedef typename CVT::HostMirror HostCVT;
// Construct View using the common type; for case of specialization, an 'embedded_dim' would be stored by view_alloc_arg
CVT cv1( Kokkos::view_alloc( "cv1", view_alloc_arg ), N0*N1 );
Kokkos::parallel_for( Kokkos::RangePolicy< ExecSpace >(0, N0*N1),
Functor<CVT>(cv1)
);
HostCVT hcv1 = Kokkos::create_mirror_view( cv1 );
Kokkos::deep_copy( hcv1, cv1 );
ASSERT_EQ( (std::is_same< CommonViewValueType, double >::value) , true ) ;
#if 0
// debug output
for ( int i = 0; i < N0*N1; ++i ) {
printf(" Output check: hcv1(%d) = %lf\n ", i, hcv1(i) );
}
printf( " Common value type view: %s \n", typeid( CVT() ).name() );
printf( " Common value type: %s \n", typeid( CommonViewValueType() ).name() );
if ( std::is_same< CommonViewValueType, double >::value == true ) {
printf("Proper common value_type\n");
}
else {
printf("WRONG common value_type\n");
}
// end debug output
#endif
}
{
// Single view
auto view_alloc_arg = Kokkos::common_view_alloc_prop(vi1);
typedef typename decltype( view_alloc_arg )::value_type CommonViewValueType;
typedef typename Kokkos::View< CommonViewValueType*, ExecSpace > CVT;
typedef typename CVT::HostMirror HostCVT;
// Construct View using the common type; for case of specialization, an 'embedded_dim' would be stored by view_alloc_arg
CVT cv1( Kokkos::view_alloc( "cv1", view_alloc_arg ), N0*N1 );
Kokkos::parallel_for( Kokkos::RangePolicy< ExecSpace >(0, N0*N1),
Functor<CVT>(cv1)
);
HostCVT hcv1 = Kokkos::create_mirror_view( cv1 );
Kokkos::deep_copy( hcv1, cv1 );
ASSERT_EQ( (std::is_same< CommonViewValueType, int>::value) , true ) ;
}
}
// Create two dynamic rank views to test
{
using VIT = typename TestViewCtorProp_EmbeddedDim::DynRankViewIntType ;
using VDT = typename TestViewCtorProp_EmbeddedDim::DynRankViewDoubleType ;
VIT vi1("vi1", N0, N1);
VDT vd1("vd1", N0);
// TEST: Test for common type between two views, one with type double, other with type int
// Deduce common value_type and construct a view with that type
{
// Two views
auto view_alloc_arg = Kokkos::common_view_alloc_prop( vi1, vd1 );
typedef typename decltype( view_alloc_arg )::value_type CommonViewValueType;
typedef typename Kokkos::View< CommonViewValueType*, ExecSpace > CVT;
typedef typename CVT::HostMirror HostCVT;
// Construct View using the common type; for case of specialization, an 'embedded_dim' would be stored by view_alloc_arg
CVT cv1( Kokkos::view_alloc( "cv1", view_alloc_arg ), N0*N1 );
Kokkos::parallel_for( Kokkos::RangePolicy< ExecSpace >(0, N0*N1),
Functor<CVT>(cv1)
);
HostCVT hcv1 = Kokkos::create_mirror_view( cv1 );
Kokkos::deep_copy( hcv1, cv1 );
ASSERT_EQ( (std::is_same< CommonViewValueType, double >::value) , true ) ;
}
{
// Single views
auto view_alloc_arg = Kokkos::common_view_alloc_prop( vi1 );
typedef typename decltype( view_alloc_arg )::value_type CommonViewValueType;
typedef typename Kokkos::View< CommonViewValueType*, ExecSpace > CVT;
typedef typename CVT::HostMirror HostCVT;
// Construct View using the common type; for case of specialization, an 'embedded_dim' would be stored by view_alloc_arg
CVT cv1( Kokkos::view_alloc( "cv1", view_alloc_arg ), N0*N1 );
Kokkos::parallel_for( Kokkos::RangePolicy< ExecSpace >(0, N0*N1),
Functor<CVT>(cv1)
);
HostCVT hcv1 = Kokkos::create_mirror_view( cv1 );
Kokkos::deep_copy( hcv1, cv1 );
ASSERT_EQ( (std::is_same< CommonViewValueType, int>::value) , true ) ;
}
}
} // end test_vcpt
}; // end struct
} // namespace
} // namespace Test
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