ViennaCL - The Vienna Computing Library  1.7.1
Free open-source GPU-accelerated linear algebra and solver library.
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matrix_convert.cpp
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1 /* =========================================================================
2  Copyright (c) 2010-2016, Institute for Microelectronics,
3  Institute for Analysis and Scientific Computing,
4  TU Wien.
5  Portions of this software are copyright by UChicago Argonne, LLC.
6 
7  -----------------
8  ViennaCL - The Vienna Computing Library
9  -----------------
10 
11  Project Head: Karl Rupp rupp@iue.tuwien.ac.at
12 
13  (A list of authors and contributors can be found in the PDF manual)
14 
15  License: MIT (X11), see file LICENSE in the base directory
16 ============================================================================= */
17 
18 
23 //
24 // *** System
25 //
26 #include <iostream>
27 #include <iomanip>
28 #include <vector>
29 
30 
31 //
32 // *** ViennaCL
33 //
34 //#define VIENNACL_DEBUG_ALL
35 #include "viennacl/backend/memory.hpp"
36 #include "viennacl/matrix.hpp"
37 #include "viennacl/matrix_proxy.hpp"
38 
39 
40 template<typename NumericT, typename MatrixT>
41 int check(std::vector<NumericT> const & std_dest,
42  std::size_t start1, std::size_t inc1, std::size_t size1,
43  std::size_t start2, std::size_t inc2, std::size_t size2, std::size_t internal_size2,
44  MatrixT const & vcl_dest)
45 {
46  viennacl::backend::typesafe_host_array<NumericT> tempmat(vcl_dest.handle(), vcl_dest.internal_size());
47  viennacl::backend::memory_read(vcl_dest.handle(), 0, tempmat.raw_size(), reinterpret_cast<NumericT*>(tempmat.get()));
48 
49  for (std::size_t i=0; i < size1; ++i)
50  {
51  for (std::size_t j=0; j < size2; ++j)
52  {
53  NumericT value_std = std_dest[(i*inc1 + start1) * internal_size2 + (j*inc2 + start2)];
54  NumericT value_dest = vcl_dest.row_major() ? tempmat[(i * vcl_dest.stride1() + vcl_dest.start1()) * vcl_dest.internal_size2() + (j * vcl_dest.stride2() + vcl_dest.start2())]
55  : tempmat[(i * vcl_dest.stride1() + vcl_dest.start1()) + (j * vcl_dest.stride2() + vcl_dest.start2()) * vcl_dest.internal_size1()];
56 
57  if (value_std < value_dest || value_std > value_dest)
58  {
59  std::cerr << "Failure at row " << i << ", col " << j << ": STL value " << value_std << ", ViennaCL value " << value_dest << std::endl;
60  return EXIT_FAILURE;
61  }
62  }
63  }
64 
65  return EXIT_SUCCESS;
66 }
67 
68 
69 //
70 // -------------------------------------------------------------
71 //
72 template<typename STLVectorT1, typename STLVectorT2, typename ViennaCLVectorT1, typename ViennaCLVectorT2 >
73 int test(STLVectorT1 & std_src, std::size_t start1_src, std::size_t inc1_src, std::size_t size1_src, std::size_t start2_src, std::size_t inc2_src, std::size_t size2_src, std::size_t internal_size2_src,
74  STLVectorT2 & std_dest, std::size_t start1_dest, std::size_t inc1_dest, std::size_t size1_dest, std::size_t start2_dest, std::size_t inc2_dest, std::size_t size2_dest, std::size_t internal_size2_dest,
75  ViennaCLVectorT1 const & vcl_src, ViennaCLVectorT2 & vcl_dest)
76 {
77  assert(size1_src == size1_dest && bool("Size1 mismatch for STL matrices"));
78  assert(size2_src == size2_dest && bool("Size2 mismatch for STL matrices"));
79  assert(vcl_src.size1() == vcl_dest.size1() && bool("Size1 mismatch for ViennaCL matrices"));
80  assert(vcl_src.size2() == vcl_dest.size2() && bool("Size2 mismatch for ViennaCL matrices"));
81  assert(size1_src == vcl_src.size1() && bool("Size1 mismatch for STL and ViennaCL matrices"));
82  assert(size2_src == vcl_src.size2() && bool("Size2 mismatch for STL and ViennaCL matrices"));
83 
84  typedef typename STLVectorT2::value_type DestNumericT;
85 
86  for (std::size_t i=0; i<size1_src; ++i)
87  for (std::size_t j=0; j<size2_src; ++j)
88  std_dest[(start1_dest + i * inc1_dest) * internal_size2_dest + (start2_dest + j * inc2_dest)] = static_cast<DestNumericT>(std_src[(start1_src + i * inc1_src) * internal_size2_src + (start2_src + j * inc2_src)]);
89 
90  vcl_dest = vcl_src; // here is the conversion taking place
91 
92  if (check(std_dest, start1_dest, inc1_dest, size1_dest, start2_dest, inc2_dest, size2_dest, internal_size2_dest, vcl_dest) != EXIT_SUCCESS)
93  return EXIT_FAILURE;
94 
95  if (vcl_src.row_major())
96  {
97  viennacl::matrix<DestNumericT> A(vcl_src);
98  if (check(std_dest, start1_dest, inc1_dest, size1_dest, start2_dest, inc2_dest, size2_dest, internal_size2_dest, A) != EXIT_SUCCESS)
99  return EXIT_FAILURE;
100  }
101  else
102  {
103  viennacl::matrix<DestNumericT, viennacl::column_major> A(vcl_src);
104  if (check(std_dest, start1_dest, inc1_dest, size1_dest, start2_dest, inc2_dest, size2_dest, internal_size2_dest, A) != EXIT_SUCCESS)
105  return EXIT_FAILURE;
106  }
107 
108  // --------------------------------------------------------------------------
109  return EXIT_SUCCESS;
110 }
111 
112 inline std::string type_string(unsigned int) { return "unsigned int"; }
113 inline std::string type_string(int) { return "int"; }
114 inline std::string type_string(unsigned long) { return "unsigned long"; }
115 inline std::string type_string(long) { return "long"; }
116 inline std::string type_string(float) { return "float"; }
117 inline std::string type_string(double) { return "double"; }
118 
119 template<typename LayoutT, typename FromNumericT, typename ToNumericT>
120 int test()
121 {
122  int retval = EXIT_SUCCESS;
123 
124  std::cout << std::endl;
125  std::cout << "-----------------------------------------------" << std::endl;
126  std::cout << std::endl;
127  std::cout << "Conversion test from " << type_string(FromNumericT()) << " to " << type_string(ToNumericT()) << std::endl;
128  std::cout << std::endl;
129 
130  std::size_t full_size1 = 578;
131  std::size_t small_size1 = full_size1 / 4;
132 
133  std::size_t full_size2 = 687;
134  std::size_t small_size2 = full_size2 / 4;
135 
136  //
137  // Set up STL objects
138  //
139  std::vector<FromNumericT> std_src(full_size1 * full_size2);
140  std::vector<std::vector<FromNumericT> > std_src2(full_size1, std::vector<FromNumericT>(full_size2));
141  std::vector<std::vector<FromNumericT> > std_src_small(small_size1, std::vector<FromNumericT>(small_size2));
142  std::vector<ToNumericT> std_dest(std_src.size());
143 
144  for (std::size_t i=0; i<full_size1; ++i)
145  for (std::size_t j=0; j<full_size2; ++j)
146  {
147  std_src[i * full_size2 + j] = FromNumericT(1.0) + FromNumericT(i) + FromNumericT(j);
148  std_src2[i][j] = FromNumericT(1.0) + FromNumericT(i) + FromNumericT(j);
149  if (i < small_size1 && j < small_size2)
150  std_src_small[i][j] = FromNumericT(1.0) + FromNumericT(i) + FromNumericT(j);
151  }
152 
153  //
154  // Set up ViennaCL objects
155  //
156  viennacl::matrix<FromNumericT, LayoutT> vcl_src(full_size1, full_size2);
157  viennacl::matrix<ToNumericT, LayoutT> vcl_dest(full_size1, full_size2);
158 
159  viennacl::copy(std_src2, vcl_src);
160 
161  viennacl::matrix<FromNumericT, LayoutT> vcl_src_small(small_size1, small_size2);
162  viennacl::copy(std_src_small, vcl_src_small);
163  viennacl::matrix<ToNumericT, LayoutT> vcl_dest_small(small_size1, small_size2);
164 
165  std::size_t r11_start = 1 + full_size1 / 4;
166  std::size_t r11_stop = r11_start + small_size1;
167  viennacl::range vcl_r11(r11_start, r11_stop);
168 
169  std::size_t r12_start = 2 * full_size1 / 4;
170  std::size_t r12_stop = r12_start + small_size1;
171  viennacl::range vcl_r12(r12_start, r12_stop);
172 
173  std::size_t r21_start = 2 * full_size2 / 4;
174  std::size_t r21_stop = r21_start + small_size2;
175  viennacl::range vcl_r21(r21_start, r21_stop);
176 
177  std::size_t r22_start = 1 + full_size2 / 4;
178  std::size_t r22_stop = r22_start + small_size2;
179  viennacl::range vcl_r22(r22_start, r22_stop);
180 
181  viennacl::matrix_range< viennacl::matrix<FromNumericT, LayoutT> > vcl_range_src(vcl_src, vcl_r11, vcl_r21);
182  viennacl::matrix_range< viennacl::matrix<ToNumericT, LayoutT> > vcl_range_dest(vcl_dest, vcl_r12, vcl_r22);
183 
184 
185 
186  std::size_t s11_start = 1 + full_size1 / 5;
187  std::size_t s11_inc = 3;
188  std::size_t s11_size = small_size1;
189  viennacl::slice vcl_s11(s11_start, s11_inc, s11_size);
190 
191  std::size_t s12_start = 2 * full_size1 / 5;
192  std::size_t s12_inc = 2;
193  std::size_t s12_size = small_size1;
194  viennacl::slice vcl_s12(s12_start, s12_inc, s12_size);
195 
196  std::size_t s21_start = 1 + full_size2 / 5;
197  std::size_t s21_inc = 3;
198  std::size_t s21_size = small_size2;
199  viennacl::slice vcl_s21(s21_start, s21_inc, s21_size);
200 
201  std::size_t s22_start = 2 * full_size2 / 5;
202  std::size_t s22_inc = 2;
203  std::size_t s22_size = small_size2;
204  viennacl::slice vcl_s22(s22_start, s22_inc, s22_size);
205 
206  viennacl::matrix_slice< viennacl::matrix<FromNumericT, LayoutT> > vcl_slice_src(vcl_src, vcl_s11, vcl_s21);
207  viennacl::matrix_slice< viennacl::matrix<ToNumericT, LayoutT> > vcl_slice_dest(vcl_dest, vcl_s12, vcl_s22);
208 
209  //
210  // Now start running tests for vectors, ranges and slices:
211  //
212 
213  std::cout << " ** vcl_src = matrix, vcl_dest = matrix **" << std::endl;
214  retval = test(std_src, 0, 1, full_size1, 0, 1, full_size2, full_size2,
215  std_dest, 0, 1, full_size1, 0, 1, full_size2, full_size2,
216  vcl_src, vcl_dest);
217  if (retval != EXIT_SUCCESS)
218  return EXIT_FAILURE;
219 
220  std::cout << " ** vcl_src = matrix, vcl_dest = range **" << std::endl;
221  retval = test(std_src, 0, 1, small_size1, 0, 1, small_size2, full_size2,
222  std_dest, r12_start, 1, r12_stop - r12_start, r22_start, 1, r22_stop - r22_start, full_size2,
223  vcl_src_small, vcl_range_dest);
224  if (retval != EXIT_SUCCESS)
225  return EXIT_FAILURE;
226 
227  std::cout << " ** vcl_src = matrix, vcl_dest = slice **" << std::endl;
228  retval = test(std_src, 0, 1, small_size1, 0, 1, small_size2, full_size2,
229  std_dest, s12_start, s12_inc, s12_size, s22_start, s22_inc, s22_size, full_size2,
230  vcl_src_small, vcl_slice_dest);
231  if (retval != EXIT_SUCCESS)
232  return EXIT_FAILURE;
233 
235 
236  std::cout << " ** vcl_src = range, vcl_dest = matrix **" << std::endl;
237  retval = test(std_src, r11_start, 1, r11_stop - r11_start, r21_start, 1, r21_stop - r21_start, full_size2,
238  std_dest, 0, 1, small_size1, 0, 1, small_size2, full_size2,
239  vcl_range_src, vcl_dest_small);
240  if (retval != EXIT_SUCCESS)
241  return EXIT_FAILURE;
242 
243  std::cout << " ** vcl_src = range, vcl_dest = range **" << std::endl;
244  retval = test(std_src, r11_start, 1, r11_stop - r11_start, r21_start, 1, r21_stop - r21_start, full_size2,
245  std_dest, r12_start, 1, r12_stop - r12_start, r22_start, 1, r22_stop - r22_start, full_size2,
246  vcl_range_src, vcl_range_dest);
247  if (retval != EXIT_SUCCESS)
248  return EXIT_FAILURE;
249 
250  std::cout << " ** vcl_src = range, vcl_dest = slice **" << std::endl;
251  retval = test(std_src, r11_start, 1, r11_stop - r11_start, r21_start, 1, r21_stop - r21_start, full_size2,
252  std_dest, s12_start, s12_inc, s12_size, s22_start, s22_inc, s22_size, full_size2,
253  vcl_range_src, vcl_slice_dest);
254  if (retval != EXIT_SUCCESS)
255  return EXIT_FAILURE;
256 
258 
259  std::cout << " ** vcl_src = slice, vcl_dest = matrix **" << std::endl;
260  retval = test(std_src, s11_start, s11_inc, s11_size, s21_start, s21_inc, s21_size, full_size2,
261  std_dest, 0, 1, small_size1, 0, 1, small_size2, full_size2,
262  vcl_slice_src, vcl_dest_small);
263  if (retval != EXIT_SUCCESS)
264  return EXIT_FAILURE;
265 
266  std::cout << " ** vcl_src = slice, vcl_dest = range **" << std::endl;
267  retval = test(std_src, s11_start, s11_inc, s11_size, s21_start, s21_inc, s21_size, full_size2,
268  std_dest, r12_start, 1, r12_stop - r12_start, r22_start, 1, r22_stop - r22_start, full_size2,
269  vcl_slice_src, vcl_range_dest);
270  if (retval != EXIT_SUCCESS)
271  return EXIT_FAILURE;
272 
273  std::cout << " ** vcl_src = slice, vcl_dest = slice **" << std::endl;
274  retval = test(std_src, s11_start, s11_inc, s11_size, s21_start, s21_inc, s21_size, full_size2,
275  std_dest, s12_start, s12_inc, s12_size, s22_start, s22_inc, s22_size, full_size2,
276  vcl_slice_src, vcl_slice_dest);
277  if (retval != EXIT_SUCCESS)
278  return EXIT_FAILURE;
279 
280  return EXIT_SUCCESS;
281 }
282 
283 
284 template<typename FromNumericT, typename ToNumericT>
285 int test()
286 {
287  int retval = test<viennacl::row_major, FromNumericT, ToNumericT>();
288  if (retval == EXIT_SUCCESS)
289  {
290  retval = test<viennacl::column_major, FromNumericT, ToNumericT>();
291  if (retval != EXIT_SUCCESS)
292  std::cerr << "Test failed for column-major!" << std::endl;
293  }
294  else
295  std::cerr << "Test failed for row-major!" << std::endl;
296 
297  return retval;
298 }
299 
300 //
301 // -------------------------------------------------------------
302 //
303 int main()
304 {
305  std::cout << std::endl;
306  std::cout << "----------------------------------------------" << std::endl;
307  std::cout << "----------------------------------------------" << std::endl;
308  std::cout << "## Test :: Type conversion test for matrices " << std::endl;
309  std::cout << "----------------------------------------------" << std::endl;
310  std::cout << "----------------------------------------------" << std::endl;
311  std::cout << std::endl;
312 
313  int retval = EXIT_SUCCESS;
314 
315  //
316  // from int
317  //
318  retval = test<int, int>();
319  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
320  else return retval;
321 
322  retval = test<int, unsigned int>();
323  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
324  else return retval;
325 
326  retval = test<int, long>();
327  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
328  else return retval;
329 
330  retval = test<int, unsigned long>();
331  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
332  else return retval;
333 
334  retval = test<int, float>();
335  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
336  else return retval;
337 
338  retval = test<int, unsigned long>();
339  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
340  else return retval;
341 
342 #ifdef VIENNACL_WITH_OPENCL
343  if ( viennacl::ocl::current_device().double_support() )
344 #endif
345  {
346  retval = test<int, double>();
347  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
348  else return retval;
349  }
350 
351 
352  //
353  // from unsigned int
354  //
355  retval = test<unsigned int, int>();
356  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
357  else return retval;
358 
359  retval = test<unsigned int, unsigned int>();
360  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
361  else return retval;
362 
363  retval = test<unsigned int, long>();
364  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
365  else return retval;
366 
367  retval = test<unsigned int, unsigned long>();
368  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
369  else return retval;
370 
371  retval = test<unsigned int, float>();
372  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
373  else return retval;
374 
375  retval = test<unsigned int, unsigned long>();
376  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
377  else return retval;
378 
379 #ifdef VIENNACL_WITH_OPENCL
380  if ( viennacl::ocl::current_device().double_support() )
381 #endif
382  {
383  retval = test<unsigned int, double>();
384  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
385  else return retval;
386  }
387 
388 
389  //
390  // from long
391  //
392  retval = test<long, int>();
393  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
394  else return retval;
395 
396  retval = test<long, unsigned int>();
397  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
398  else return retval;
399 
400  retval = test<long, long>();
401  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
402  else return retval;
403 
404  retval = test<long, unsigned long>();
405  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
406  else return retval;
407 
408  retval = test<long, float>();
409  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
410  else return retval;
411 
412  retval = test<long, unsigned long>();
413  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
414  else return retval;
415 
416 #ifdef VIENNACL_WITH_OPENCL
417  if ( viennacl::ocl::current_device().double_support() )
418 #endif
419  {
420  retval = test<long, double>();
421  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
422  else return retval;
423  }
424 
425 
426  //
427  // from unsigned long
428  //
429  retval = test<unsigned long, int>();
430  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
431  else return retval;
432 
433  retval = test<unsigned long, unsigned int>();
434  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
435  else return retval;
436 
437  retval = test<unsigned long, long>();
438  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
439  else return retval;
440 
441  retval = test<unsigned long, unsigned long>();
442  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
443  else return retval;
444 
445  retval = test<unsigned long, float>();
446  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
447  else return retval;
448 
449  retval = test<unsigned long, unsigned long>();
450  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
451  else return retval;
452 
453 #ifdef VIENNACL_WITH_OPENCL
454  if ( viennacl::ocl::current_device().double_support() )
455 #endif
456  {
457  retval = test<unsigned long, double>();
458  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
459  else return retval;
460  }
461 
462  //
463  // from float
464  //
465  retval = test<float, int>();
466  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
467  else return retval;
468 
469  retval = test<float, unsigned int>();
470  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
471  else return retval;
472 
473  retval = test<float, long>();
474  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
475  else return retval;
476 
477  retval = test<float, unsigned long>();
478  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
479  else return retval;
480 
481  retval = test<float, float>();
482  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
483  else return retval;
484 
485  retval = test<float, unsigned long>();
486  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
487  else return retval;
488 
489 #ifdef VIENNACL_WITH_OPENCL
490  if ( viennacl::ocl::current_device().double_support() )
491 #endif
492  {
493  retval = test<float, double>();
494  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
495  else return retval;
496  }
497 
498  //
499  // from double
500  //
501 #ifdef VIENNACL_WITH_OPENCL
502  if ( viennacl::ocl::current_device().double_support() )
503 #endif
504  {
505  retval = test<double, int>();
506  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
507  else return retval;
508 
509  retval = test<double, unsigned int>();
510  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
511  else return retval;
512 
513  retval = test<double, long>();
514  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
515  else return retval;
516 
517  retval = test<double, unsigned long>();
518  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
519  else return retval;
520 
521  retval = test<double, float>();
522  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
523  else return retval;
524 
525  retval = test<double, unsigned long>();
526  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
527  else return retval;
528 
529  retval = test<double, double>();
530  if ( retval == EXIT_SUCCESS ) std::cout << "# Test passed" << std::endl;
531  else return retval;
532  }
533 
534 
535  std::cout << std::endl;
536  std::cout << "------- Test completed --------" << std::endl;
537  std::cout << std::endl;
538 
539  return retval;
540 }
viennacl::backend::typesafe_host_array
Helper class implementing an array on the host. Default case: No conversion necessary.
Definition: util.hpp:92
viennacl::matrix_slice
Class for representing strided submatrices of a bigger matrix A.
Definition: forwards.h:443
matrix.hpp
Implementation of the dense matrix class.
viennacl::traits::size1
vcl_size_t size1(MatrixType const &mat)
Generic routine for obtaining the number of rows of a matrix (ViennaCL, uBLAS, etc.)
Definition: size.hpp:163
check
int check(std::vector< NumericT > const &std_dest, std::size_t start1, std::size_t inc1, std::size_t size1, std::size_t start2, std::size_t inc2, std::size_t size2, std::size_t internal_size2, MatrixT const &vcl_dest)
Definition: matrix_convert.cpp:41
viennacl::traits::internal_size2
vcl_size_t internal_size2(matrix_base< NumericT > const &mat)
Helper routine for obtaining the internal number of entries per column of a ViennaCL matrix...
Definition: size.hpp:394
type_string
std::string type_string(unsigned int)
Definition: matrix_convert.cpp:112
viennacl::traits::start1
result_of::size_type< T >::type start1(T const &obj)
Definition: start.hpp:65
viennacl::matrix
A dense matrix class.
Definition: forwards.h:375
viennacl::backend::memory_read
void memory_read(mem_handle const &src_buffer, vcl_size_t src_offset, vcl_size_t bytes_to_read, void *ptr, bool async=false)
Reads data from a buffer back to main RAM.
Definition: memory.hpp:261
viennacl::ocl::current_device
viennacl::ocl::device const & current_device()
Convenience function for returning the active device in the current context.
Definition: backend.hpp:351
viennacl::traits::size2
result_of::size_type< MatrixType >::type size2(MatrixType const &mat)
Generic routine for obtaining the number of columns of a matrix (ViennaCL, uBLAS, etc...
Definition: size.hpp:201
NumericT
float NumericT
Definition: bisect.cpp:40
viennacl::traits::start2
result_of::size_type< T >::type start2(T const &obj)
Definition: start.hpp:84
test
int test(STLVectorT1 &std_src, std::size_t start1_src, std::size_t inc1_src, std::size_t size1_src, std::size_t start2_src, std::size_t inc2_src, std::size_t size2_src, std::size_t internal_size2_src, STLVectorT2 &std_dest, std::size_t start1_dest, std::size_t inc1_dest, std::size_t size1_dest, std::size_t start2_dest, std::size_t inc2_dest, std::size_t size2_dest, std::size_t internal_size2_dest, ViennaCLVectorT1 const &vcl_src, ViennaCLVectorT2 &vcl_dest)
Definition: matrix_convert.cpp:73
viennacl::ocl::device::double_support
bool double_support() const
ViennaCL convenience function: Returns true if the device supports double precision.
Definition: device.hpp:956
matrix_proxy.hpp
Proxy classes for matrices.
viennacl::copy
void copy(std::vector< NumericT > &cpu_vec, circulant_matrix< NumericT, AlignmentV > &gpu_mat)
Copies a circulant matrix from the std::vector to the OpenCL device (either GPU or multi-core CPU) ...
Definition: circulant_matrix.hpp:150
viennacl::basic_range
A range class that refers to an interval [start, stop), where 'start' is included, and 'stop' is excluded.
Definition: forwards.h:424
viennacl::matrix_range
Class for representing non-strided submatrices of a bigger matrix A.
Definition: forwards.h:440
main
int main()
Definition: matrix_convert.cpp:303
viennacl::basic_slice
A slice class that refers to an interval [start, stop), where 'start' is included, and 'stop' is excluded.
Definition: forwards.h:429
memory.hpp
Main interface routines for memory management.