linear_operator.cc 2.7 KB

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  1. // Ceres Solver - A fast non-linear least squares minimizer
  2. // Copyright 2023 Google Inc. All rights reserved.
  3. // http://ceres-solver.org/
  4. //
  5. // Redistribution and use in source and binary forms, with or without
  6. // modification, are permitted provided that the following conditions are met:
  7. //
  8. // * Redistributions of source code must retain the above copyright notice,
  9. // this list of conditions and the following disclaimer.
  10. // * Redistributions in binary form must reproduce the above copyright notice,
  11. // this list of conditions and the following disclaimer in the documentation
  12. // and/or other materials provided with the distribution.
  13. // * Neither the name of Google Inc. nor the names of its contributors may be
  14. // used to endorse or promote products derived from this software without
  15. // specific prior written permission.
  16. //
  17. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18. // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19. // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20. // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  21. // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22. // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23. // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24. // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25. // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26. // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27. // POSSIBILITY OF SUCH DAMAGE.
  28. //
  29. // Author: sameeragarwal@google.com (Sameer Agarwal)
  30. #include "ceres/linear_operator.h"
  31. #include <glog/logging.h>
  32. namespace ceres::internal {
  33. void LinearOperator::RightMultiplyAndAccumulate(const double* x,
  34. double* y,
  35. ContextImpl* context,
  36. int num_threads) const {
  37. (void)context;
  38. if (num_threads != 1) {
  39. VLOG(3) << "Parallel right product is not supported by linear operator "
  40. "implementation";
  41. }
  42. RightMultiplyAndAccumulate(x, y);
  43. }
  44. void LinearOperator::LeftMultiplyAndAccumulate(const double* x,
  45. double* y,
  46. ContextImpl* context,
  47. int num_threads) const {
  48. (void)context;
  49. if (num_threads != 1) {
  50. VLOG(3) << "Parallel left product is not supported by linear operator "
  51. "implementation";
  52. }
  53. LeftMultiplyAndAccumulate(x, y);
  54. }
  55. LinearOperator::~LinearOperator() = default;
  56. } // namespace ceres::internal