ceres-solver/internal/ceres/linear_operator.cc

// Ceres Solver - A fast non-linear least squares minimizer
// Copyright 2015 Google Inc. All rights reserved.
// http://ceres-solver.org/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
// * Neither the name of Google Inc. nor the names of its contributors may be
//   used to endorse or promote products derived from this software without
//   specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Author: sameeragarwal@google.com (Sameer Agarwal)

#include "ceres/linear_operator.h"

#include <glog/logging.h>

namespace ceres::internal {

void LinearOperator::RightMultiplyAndAccumulate(const double* x,
                                                double* y,
                                                ContextImpl* context,
                                                int num_threads) const {
  (void)context;
  if (num_threads != 1) {
    VLOG(3) << "Parallel right product is not supported by linear operator "
               "implementation";
  }
  RightMultiplyAndAccumulate(x, y);
}

void LinearOperator::LeftMultiplyAndAccumulate(const double* x,
                                               double* y,
                                               ContextImpl* context,
                                               int num_threads) const {
  (void)context;
  if (num_threads != 1) {
    VLOG(3) << "Parallel left product is not supported by linear operator "
               "implementation";
  }
  LeftMultiplyAndAccumulate(x, y);
}

LinearOperator::~LinearOperator() = default;

}  // namespace ceres::internal