diffusion.h

Go to the documentation of this file.

/*
 *  Copyright 2008-2014 NVIDIA Corporation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#pragma once

#include <cusp/detail/config.h>
#include <cusp/gallery/stencil.h>

#ifdef _WIN32
#define _USE_MATH_DEFINES 1  // make sure M_PI is defined
#endif
#include <math.h>

namespace cusp
{
namespace gallery
{

struct disc_type {};
struct FD : public disc_type {};
struct FE : public disc_type {};
template <typename Method, typename MatrixType>
void diffusion( MatrixType& matrix, size_t m, size_t n,
                const double eps = 1e-5,
                const double theta = M_PI/4.0);
} // end namespace gallery
} // end namespace cusp

#include <cusp/gallery/detail/diffusion.inl>