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// @HEADER
// ************************************************************************
//
// Intrepid2 Package
// Copyright (2007) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// 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 Kyungjoo Kim (kyukim@sandia.gov), or
// Mauro Perego (mperego@sandia.gov)
//
// ************************************************************************
// @HEADER
/** \file
\brief Test utils (compute volume, monomial, integral)
\author Kyungjoo Kim
*/
#ifndef __INTREPID2_TEST_UTILS_HPP__
#define __INTREPID2_TEST_UTILS_HPP__
#include "Intrepid2_config.h"
#include "Intrepid2_Types.hpp"
#include "Intrepid2_Utils.hpp"
namespace Intrepid2 {
namespace Test {
template<typename cubWeightViewType>
typename cubWeightViewType::value_type
computeRefVolume(const ordinal_type numPoints,
const cubWeightViewType cubWeights) {
typename cubWeightViewType::value_type r_val = 0.0;
Kokkos::fence();
auto cubWeights_host = Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), cubWeights);
for (auto i=0;i<numPoints;++i) {
r_val += cubWeights_host(i);
}
return r_val;
}
// Monomial evaluation.
// in 1D, for point p(x) : x^xDeg
// in 2D, for point p(x,y) : x^xDeg * y^yDeg
// in 3D, for point p(x,y,z): x^xDeg * y^yDeg * z^zDeg
template<typename ValueType,
typename PointViewType>
ValueType computeMonomial(PointViewType p,
const ordinal_type xDeg,
const ordinal_type yDeg = 0,
const ordinal_type zDeg = 0) {
ValueType r_val = 1.0;
const ordinal_type polydeg[3] = { xDeg, yDeg, zDeg };
const auto dim = p.extent(0);
Kokkos::fence();
Kokkos::DynRankView<typename PointViewType::non_const_value_type,
typename PointViewType::execution_space> p_device("p_device", p.extent(0));
Kokkos::deep_copy(p_device, p);
auto p_host = Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), p_device);
for (size_type i=0;i<dim;++i)
r_val *= std::pow(p_host(i),polydeg[i]);
return r_val;
}
// Computes integrals of monomials
template<typename ValueType,
typename cubatureType,
typename cubPointViewType,
typename cubWeightViewType>
ValueType computeIntegralOfMonomial(cubatureType cub,
cubPointViewType cubPoints,
cubWeightViewType cubWeights,
const ordinal_type xDeg,
const ordinal_type yDeg = 0,
const ordinal_type zDeg = 0) {
ValueType r_val = 0.0;
// get cubature
cub.getCubature(cubPoints, cubWeights);
auto cubWeights_host = Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), cubWeights);
Kokkos::fence();
const auto dim = cub.getDimension();
const auto npts = cub.getNumPoints();
typedef Kokkos::pair<ordinal_type,ordinal_type> range_type;
for (auto i=0;i<npts;++i) {
const auto pt = Kokkos::subdynrankview(cubPoints, i, range_type(0, dim));
r_val += computeMonomial<ValueType>(pt, xDeg, yDeg, zDeg)*cubWeights_host(i);
}
return r_val;
}
}
}
#endif
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