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/*
* Copyright 2008-2009 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/format.h>
#include <cusp/csr_matrix.h>
#include <cusp/detail/host/detail/csr_elementwise.h>
namespace cusp
{
namespace detail
{
namespace host
{
namespace dispatch
{
/////////
// COO //
/////////
// TODO add COO version of transform_elementwise
//template <typename Matrix1,
// typename Matrix2,
// typename Matrix3,
// typename BinaryFunction>
//void transform_elementwise(const Matrix1& A,
// const Matrix2& B,
// Matrix3& C,
// BinaryFunction op,
// cusp::coo_format,
// cusp::coo_format,
// cusp::coo_format)
//{
// cusp::detail::host::detail::transform_elementwise_coo(A, B, C, op);
//}
/////////
// CSR //
/////////
template <typename Matrix1,
typename Matrix2,
typename Matrix3,
typename BinaryFunction>
void transform_elementwise(const Matrix1& A,
const Matrix2& B,
Matrix3& C,
BinaryFunction op,
cusp::csr_format,
cusp::csr_format,
cusp::csr_format)
{
cusp::detail::host::detail::csr_transform_elementwise(A, B, C, op);
}
///////////
// Array //
///////////
template <typename Matrix1,
typename Matrix2,
typename Matrix3,
typename BinaryFunction>
void transform_elementwise(const Matrix1& A,
const Matrix2& B,
Matrix3& C,
BinaryFunction op,
cusp::array2d_format,
cusp::array2d_format,
cusp::array2d_format)
{
C.resize(A.num_rows, A.num_cols);
for(size_t i = 0; i < A.num_rows; i++)
for(size_t j = 0; j < A.num_cols; j++)
C(i,j) = op(A(i,j), B(i,j));
}
/////////////
// Default //
/////////////
template <typename Matrix1,
typename Matrix2,
typename Matrix3,
typename BinaryFunction>
void transform_elementwise(const Matrix1& A,
const Matrix2& B,
Matrix3& C,
BinaryFunction op,
sparse_format,
sparse_format,
sparse_format)
{
typedef typename Matrix1::index_type IndexType1;
typedef typename Matrix2::index_type IndexType2;
typedef typename Matrix3::index_type IndexType3;
typedef typename Matrix1::value_type ValueType1;
typedef typename Matrix2::value_type ValueType2;
typedef typename Matrix3::value_type ValueType3;
cusp::csr_matrix<IndexType1,ValueType1,cusp::host_memory> A_(A);
cusp::csr_matrix<IndexType2,ValueType2,cusp::host_memory> B_(B);
cusp::csr_matrix<IndexType3,ValueType3,cusp::host_memory> C_;
cusp::detail::host::transform_elementwise(A_, B_, C_, op);
cusp::convert(C_, C);
}
} // end namespace dispatch
/////////////////
// Entry Point //
/////////////////
template <typename Matrix1,
typename Matrix2,
typename Matrix3,
typename BinaryFunction>
void transform_elementwise(const Matrix1& A,
const Matrix2& B,
Matrix3& C,
BinaryFunction op)
{
cusp::detail::host::dispatch::transform_elementwise(A, B, C, op,
typename Matrix1::format(),
typename Matrix2::format(),
typename Matrix3::format());
}
} // end namespace host
} // end namespace detail
} // end namespace cusp
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