vtk-m/vtkm/cont/testing/UnitTestArrayHandleCartesianProduct.cxx
Kenneth Moreland 0b2823ba55 Make UnitTestArrayHandleCartesianProduct faster
Reduce the number of conditions UnitTestArrayHandleCartesianProduct
tries so that it is faster. All the conditions are pretty similar, so it
should be OK to reduce some.
2016-01-14 15:22:33 -07:00

122 lines
3.6 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 2015 Sandia Corporation.
// Copyright 2015 UT-Battelle, LLC.
// Copyright 2015 Los Alamos National Security.
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// 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/cont/ArrayHandleCartesianProduct.h>
#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/cont/DeviceAdapterAlgorithm.h>
#include <vtkm/cont/Assert.h>
#include <vtkm/cont/testing/Testing.h>
#include <vector>
namespace ArrayHandleCartesianProductNamespace {
typedef vtkm::cont::DeviceAdapterAlgorithm<VTKM_DEFAULT_DEVICE_ADAPTER_TAG> DFA;
template <typename T>
void ArrayHandleCPBasic(vtkm::cont::ArrayHandle<T> x,
vtkm::cont::ArrayHandle<T> y,
vtkm::cont::ArrayHandle<T> z)
{
vtkm::cont::ArrayHandleCartesianProduct<
vtkm::cont::ArrayHandle<T>,
vtkm::cont::ArrayHandle<T>,
vtkm::cont::ArrayHandle<T> > cpArray;
vtkm::Id nx = x.GetNumberOfValues();
vtkm::Id ny = y.GetNumberOfValues();
vtkm::Id nz = z.GetNumberOfValues();
vtkm::Id n = nx*ny*nz;
cpArray = vtkm::cont::make_ArrayHandleCartesianProduct(x,y,z);
//Make sure we have the right number of values.
VTKM_TEST_ASSERT(cpArray.GetNumberOfValues() == (nx*ny*nz),
"Cartesian array constructor has wrong number of values");
//Make sure the values are correct.
vtkm::Vec<T,3> val;
for (vtkm::Id i = 0; i < n; i++)
{
vtkm::Id idx0 = (i % (nx*ny)) % nx;
vtkm::Id idx1 = (i % (nx*ny)) / nx;
vtkm::Id idx2 = i / (nx*ny);
val = vtkm::Vec<T,3>(x.GetPortalConstControl().Get(idx0),
y.GetPortalConstControl().Get(idx1),
z.GetPortalConstControl().Get(idx2));
VTKM_TEST_ASSERT(test_equal(cpArray.GetPortalConstControl().Get(i), val),
"Wrong value in array");
}
}
template <typename T>
void createArr(std::vector<T> &arr, std::size_t n)
{
arr.resize(n);
for (std::size_t i = 0; i < n; i++)
arr[i] = static_cast<T>(i);
}
template <typename T>
void
RunTest()
{
std::size_t nX = 11, nY = 13, nZ = 11;
for (std::size_t i = 1; i < nX; i += 2)
{
for (std::size_t j = 1; j < nY; j += 4)
{
for (std::size_t k = 1; k < nZ; k += 5)
{
std::vector<T> X,Y,Z;
createArr(X, nX);
createArr(Y, nY);
createArr(Z, nZ);
ArrayHandleCPBasic(vtkm::cont::make_ArrayHandle(X),
vtkm::cont::make_ArrayHandle(Y),
vtkm::cont::make_ArrayHandle(Z));
}
}
}
}
void
TestArrayHandleCartesianProduct()
{
RunTest<vtkm::Float32>();
RunTest<vtkm::Float64>();
RunTest<vtkm::Id>();
}
} // namespace ArrayHandleCartesianProductNamespace
int UnitTestArrayHandleCartesianProduct(int, char *[])
{
using namespace ArrayHandleCartesianProductNamespace;
return vtkm::cont::testing::Testing::Run(TestArrayHandleCartesianProduct);
}