SHOGUN  4.0.0
GPUMatrix.h
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1 /*
2  * Copyright (c) 2014, Shogun Toolbox Foundation
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5  * Written (W) 2014 Khaled Nasr
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33 
34 #ifndef __GPUMATRIX_H__
35 #define __GPUMATRIX_H__
36 
37 #include <shogun/lib/config.h>
38 
39 #ifdef HAVE_VIENNACL
40 #ifdef HAVE_CXX11
41 
42 #include <shogun/lib/common.h>
43 #include <memory>
44 
45 namespace viennacl
46 {
47  template <class, class, class, class> class matrix_base;
48  template <class> class const_entry_proxy;
49  template <class> class entry_proxy;
50  class column_major;
51 
52  namespace backend
53  {
54  class mem_handle;
55  }
56 }
57 
58 namespace Eigen
59 {
60  template <class, int, int, int, int, int> class Matrix;
61 }
62 
63 namespace shogun
64 {
65 
66 template <class> class SGMatrix;
67 
79 template <class T> class CGPUMatrix
80 {
81  typedef viennacl::matrix_base<T, viennacl::column_major, std::size_t, std::ptrdiff_t> VCLMatrixBase;
82  typedef viennacl::backend::mem_handle VCLMemoryArray;
83 
84  typedef Eigen::Matrix<T,-1,-1,0,-1,-1> EigenMatrixXt;
85 
86 public:
88  typedef T Scalar;
89 
91  CGPUMatrix();
92 
98  CGPUMatrix(index_t nrows, index_t ncols);
99 
108  CGPUMatrix(std::shared_ptr<VCLMemoryArray> mem, index_t nrows, index_t ncols,
109  index_t mem_offset=0);
110 
112  CGPUMatrix(const SGMatrix<T>& cpu_mat);
113 
114 #ifndef SWIG // SWIG should skip this part
115 #ifdef HAVE_EIGEN3
116  CGPUMatrix(const EigenMatrixXt& cpu_mat);
117 
119  operator EigenMatrixXt() const;
120 #endif
121 #endif
122 
124  operator SGMatrix<T>() const;
125 
129  VCLMatrixBase vcl_matrix();
130 
132  void zero();
133 
138  void set_const(T value);
139 
141  void display_matrix(const char* name="matrix") const;
142 
149  viennacl::const_entry_proxy<T> operator()(index_t i, index_t j) const;
150 
157  viennacl::entry_proxy<T> operator()(index_t i, index_t j);
158 
164  viennacl::const_entry_proxy<T> operator[](index_t index) const;
165 
171  viennacl::entry_proxy<T> operator[](index_t index);
172 
173 private:
174  void init();
175 
176 public:
178  std::shared_ptr<VCLMemoryArray> matrix;
179 
183  index_t offset;
184 
186  index_t num_rows;
187 
189  index_t num_cols;
190 };
191 
192 }
193 
194 #endif // HAVE_CXX11
195 #endif // HAVE_VIENNACL
196 #endif // __GPUMATRIX_H__
int32_t index_t
Definition: common.h:62
Definition: SGMatrix.h:20
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:18

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