Page MenuHomec4science
Files F72787231

TestViewOfClass.hpp
No OneTemporary
Actions

File Metadata

Created
Wed, Jul 17, 01:48

TestViewOfClass.hpp
View Options

/*
//@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 <gtest/gtest.h>
#include <Kokkos_Core.hpp>
#include <stdexcept>
#include <sstream>
#include <iostream>
/*--------------------------------------------------------------------------*/
namespace Test {
template< class Space >
struct NestedView {
Kokkos::View<int*,Space> member ;
public:
KOKKOS_INLINE_FUNCTION
NestedView() : member()
{}
KOKKOS_INLINE_FUNCTION
NestedView & operator = ( const Kokkos::View<int*,Space> & lhs )
{
member = lhs ;
if ( member.dimension_0() ) Kokkos::atomic_add( & member(0) , 1 );
return *this ;
}
KOKKOS_INLINE_FUNCTION
~NestedView()
{
if ( member.dimension_0() ) {
Kokkos::atomic_add( & member(0) , -1 );
}
}
};
template< class Space >
struct NestedViewFunctor {
Kokkos::View< NestedView<Space> * , Space > nested ;
Kokkos::View<int*,Space> array ;
NestedViewFunctor(
const Kokkos::View< NestedView<Space> * , Space > & arg_nested ,
const Kokkos::View<int*,Space> & arg_array )
: nested( arg_nested )
, array( arg_array )
{}
KOKKOS_INLINE_FUNCTION
void operator()( int i ) const
{ nested[i] = array ; }
};
template< class Space >
void view_nested_view()
{
Kokkos::View<int*,Space> tracking("tracking",1);
typename Kokkos::View<int*,Space>::HostMirror
host_tracking = Kokkos::create_mirror( tracking );
{
Kokkos::View< NestedView<Space> * , Space > a("a_nested_view",2);
Kokkos::parallel_for( Kokkos::RangePolicy<Space>(0,2) , NestedViewFunctor<Space>( a , tracking ) );
Kokkos::deep_copy( host_tracking , tracking );
ASSERT_EQ( 2 , host_tracking(0) );
Kokkos::View< NestedView<Space> * , Space > b("b_nested_view",2);
Kokkos::parallel_for( Kokkos::RangePolicy<Space>(0,2) , NestedViewFunctor<Space>( b , tracking ) );
Kokkos::deep_copy( host_tracking , tracking );
ASSERT_EQ( 4 , host_tracking(0) );
}
Kokkos::deep_copy( host_tracking , tracking );
#if KOKKOS_USING_EXP_VIEW
ASSERT_EQ( 0 , host_tracking(0) );
#endif
}
}
#if ! KOKKOS_USING_EXP_VIEW
namespace Kokkos {
namespace Impl {
template< class ExecSpace , class S >
struct ViewDefaultConstruct< ExecSpace , Test::NestedView<S> , true >
{
typedef Test::NestedView<S> type ;
type * const m_ptr ;
KOKKOS_FORCEINLINE_FUNCTION
void operator()( const typename ExecSpace::size_type& i ) const
{ new(m_ptr+i) type(); }
ViewDefaultConstruct( type * pointer , size_t capacity )
: m_ptr( pointer )
{
Kokkos::RangePolicy< ExecSpace > range( 0 , capacity );
parallel_for( range , *this );
ExecSpace::fence();
}
};
} // namespace Impl
} // namespace Kokkos
#endif
/*--------------------------------------------------------------------------*/

Event Timeline

c4science · Help