ViennaCL - The Vienna Computing Library  1.5.1
hankel_matrix_operations.hpp
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1 #ifndef VIENNACL_LINALG_HANKEL_MATRIX_OPERATIONS_HPP_
2 #define VIENNACL_LINALG_HANKEL_MATRIX_OPERATIONS_HPP_
3 
4 /* =========================================================================
5  Copyright (c) 2010-2014, Institute for Microelectronics,
6  Institute for Analysis and Scientific Computing,
7  TU Wien.
8  Portions of this software are copyright by UChicago Argonne, LLC.
9 
10  -----------------
11  ViennaCL - The Vienna Computing Library
12  -----------------
13 
14  Project Head: Karl Rupp rupp@iue.tuwien.ac.at
15 
16  (A list of authors and contributors can be found in the PDF manual)
17 
18  License: MIT (X11), see file LICENSE in the base directory
19 ============================================================================= */
20 
25 #include "viennacl/forwards.h"
26 #include "viennacl/ocl/backend.hpp"
27 #include "viennacl/scalar.hpp"
28 #include "viennacl/vector.hpp"
29 #include "viennacl/tools/tools.hpp"
30 #include "viennacl/fft.hpp"
32 
33 namespace viennacl
34 {
35  namespace linalg
36  {
37 
38  // A * x
39 
48  template<class SCALARTYPE, unsigned int ALIGNMENT>
52  {
53  assert(mat.size1() == result.size());
54  assert(mat.size2() == vec.size());
55 
56  prod_impl(mat.elements(), vec, result);
57  viennacl::detail::fft::reverse(result);
58  }
59 
60  } //namespace linalg
61 
62 
63 } //namespace viennacl
64 
65 
66 #endif
size_type size() const
Returns the length of the vector (cf. std::vector)
Definition: vector.hpp:859
Implementations of operations using toeplitz_matrix. Experimental.
Various little tools used here and there in ViennaCL.
This file provides the forward declarations for the main types used within ViennaCL.
A Hankel matrix class.
Definition: forwards.h:327
vcl_size_t size1() const
Returns the number of rows of the matrix.
Definition: hankel_matrix.hpp:93
toeplitz_matrix< SCALARTYPE, ALIGNMENT > & elements()
Returns an internal viennacl::toeplitz_matrix, which represents a Hankel matrix elements.
Definition: hankel_matrix.hpp:87
Implementations of the OpenCL backend, where all contexts are stored in.
The vector type with operator-overloads and proxy classes is defined here. Linear algebra operations ...
All routines related to the Fast Fourier Transform. Experimental.
void prod_impl(const matrix_base< NumericT, F > &mat, const vector_base< NumericT > &vec, vector_base< NumericT > &result)
Carries out matrix-vector multiplication.
Definition: matrix_operations.hpp:350
vcl_size_t size2() const
Returns the number of columns of the matrix.
Definition: hankel_matrix.hpp:98
Implementation of the ViennaCL scalar class.