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Diffstat (limited to 'extern/ceres/internal/ceres/lapack.h')
| -rw-r--r-- | extern/ceres/internal/ceres/lapack.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/extern/ceres/internal/ceres/lapack.h b/extern/ceres/internal/ceres/lapack.h deleted file mode 100644 index 5c5bf8bf8b8..00000000000 --- a/extern/ceres/internal/ceres/lapack.h +++ /dev/null @@ -1,101 +0,0 @@ -// 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) - -#ifndef CERES_INTERNAL_LAPACK_H_ -#define CERES_INTERNAL_LAPACK_H_ - -#include <string> - -#include "ceres/internal/port.h" -#include "ceres/linear_solver.h" - -namespace ceres { -namespace internal { - -class LAPACK { - public: - // Solve - // - // lhs * solution = rhs - // - // using a Cholesky factorization. Here - // lhs is a symmetric positive definite matrix. It is assumed to be - // column major and only the lower triangular part of the matrix is - // referenced. - // - // This function uses the LAPACK dpotrf and dpotrs routines. - // - // The return value and the message string together describe whether - // the solver terminated successfully or not and if so, what was the - // reason for failure. - static LinearSolverTerminationType SolveInPlaceUsingCholesky( - int num_rows, - const double* lhs, - double* rhs_and_solution, - std::string* message); - - // The SolveUsingQR function requires a buffer for its temporary - // computation. This function given the size of the lhs matrix will - // return the size of the buffer needed. - static int EstimateWorkSizeForQR(int num_rows, int num_cols); - - // Solve - // - // lhs * solution = rhs - // - // using a dense QR factorization. lhs is an arbitrary (possibly - // rectangular) matrix with full column rank. - // - // work is an array of size work_size that this routine uses for its - // temporary storage. The optimal size of this array can be obtained - // by calling EstimateWorkSizeForQR. - // - // When calling, rhs_and_solution contains the rhs, and upon return - // the first num_col entries are the solution. - // - // This function uses the LAPACK dgels routine. - // - // The return value and the message string together describe whether - // the solver terminated successfully or not and if so, what was the - // reason for failure. - static LinearSolverTerminationType SolveInPlaceUsingQR( - int num_rows, - int num_cols, - const double* lhs, - int work_size, - double* work, - double* rhs_and_solution, - std::string* message); -}; - -} // namespace internal -} // namespace ceres - -#endif // CERES_INTERNAL_LAPACK_H_ |