vtk-m2/vtkm/worklet/testing/UnitTestDotProduct.cxx
David Thompson 00c7905afb Rename vtkm::dot() to vtkm::Dot().
This keeps the old name around but prepares it for removal
in the next release.
2018-05-17 08:51:01 -04:00

116 lines
4.1 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#include <vtkm/worklet/DispatcherMapField.h>
#include <vtkm/worklet/DotProduct.h>
#include <vtkm/cont/testing/Testing.h>
namespace
{
template <typename T>
T normalizedVector(T v)
{
T vN = vtkm::Normal(v);
return vN;
}
template <typename T>
void createVectors(std::vector<vtkm::Vec<T, 3>>& vecs1,
std::vector<vtkm::Vec<T, 3>>& vecs2,
std::vector<T>& result)
{
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
result.push_back(1);
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(-1), T(0), T(0))));
result.push_back(-1);
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(0), T(1), T(0))));
result.push_back(0);
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(0), T(-1), T(0))));
result.push_back(0);
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(1), T(1), T(0))));
result.push_back(T(1.0 / vtkm::Sqrt(2.0)));
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(1), T(1), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(1), T(0), T(0))));
result.push_back(T(1.0 / vtkm::Sqrt(2.0)));
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(-1), T(0), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(1), T(1), T(0))));
result.push_back(-T(1.0 / vtkm::Sqrt(2.0)));
vecs1.push_back(normalizedVector(vtkm::make_Vec(T(0), T(1), T(0))));
vecs2.push_back(normalizedVector(vtkm::make_Vec(T(1), T(1), T(0))));
result.push_back(T(1.0 / vtkm::Sqrt(2.0)));
}
template <typename T>
void TestDotProduct()
{
std::vector<vtkm::Vec<T, 3>> inputVecs1, inputVecs2;
std::vector<T> answer;
createVectors(inputVecs1, inputVecs2, answer);
vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> inputArray1, inputArray2;
vtkm::cont::ArrayHandle<T> outputArray;
inputArray1 = vtkm::cont::make_ArrayHandle(inputVecs1);
inputArray2 = vtkm::cont::make_ArrayHandle(inputVecs2);
vtkm::worklet::DotProduct dotProductWorklet;
vtkm::worklet::DispatcherMapField<vtkm::worklet::DotProduct> dispatcherDotProduct(
dotProductWorklet);
dispatcherDotProduct.Invoke(inputArray1, inputArray2, outputArray);
VTKM_TEST_ASSERT(outputArray.GetNumberOfValues() == inputArray1.GetNumberOfValues(),
"Wrong number of results for DotProduct worklet");
for (vtkm::Id i = 0; i < inputArray1.GetNumberOfValues(); i++)
{
vtkm::Vec<T, 3> v1 = inputArray1.GetPortalConstControl().Get(i);
vtkm::Vec<T, 3> v2 = inputArray2.GetPortalConstControl().Get(i);
T ans = answer[static_cast<std::size_t>(i)];
VTKM_TEST_ASSERT(test_equal(ans, vtkm::Dot(v1, v2)), "Wrong result for dot product");
}
}
void TestDotProductWorklets()
{
std::cout << "Testing DotProduct Worklet" << std::endl;
TestDotProduct<vtkm::Float32>();
// TestDotProduct<vtkm::Float64>();
}
}
int UnitTestDotProduct(int, char* [])
{
return vtkm::cont::testing::Testing::Run(TestDotProductWorklets);
}