diff options
Diffstat (limited to 'extern/ceres/internal/ceres/preprocessor.cc')
| -rw-r--r-- | extern/ceres/internal/ceres/preprocessor.cc | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/extern/ceres/internal/ceres/preprocessor.cc b/extern/ceres/internal/ceres/preprocessor.cc index 4aba6a39ce8..02219147d75 100644 --- a/extern/ceres/internal/ceres/preprocessor.cc +++ b/extern/ceres/internal/ceres/preprocessor.cc @@ -31,6 +31,7 @@ #include "ceres/callbacks.h" #include "ceres/gradient_checking_cost_function.h" #include "ceres/line_search_preprocessor.h" +#include "ceres/parallel_for.h" #include "ceres/preprocessor.h" #include "ceres/problem_impl.h" #include "ceres/solver.h" @@ -56,25 +57,15 @@ Preprocessor::~Preprocessor() { } void ChangeNumThreadsIfNeeded(Solver::Options* options) { -#ifndef CERES_USE_OPENMP - if (options->num_threads > 1) { + const int num_threads_available = MaxNumThreadsAvailable(); + if (options->num_threads > num_threads_available) { LOG(WARNING) - << "OpenMP support is not compiled into this binary; " - << "only options.num_threads = 1 is supported. Switching " - << "to single threaded mode."; - options->num_threads = 1; + << "Specified options.num_threads: " << options->num_threads + << " exceeds maximum available from the threading model Ceres " + << "was compiled with: " << num_threads_available + << ". Bounding to maximum number available."; + options->num_threads = num_threads_available; } - - // Only the Trust Region solver currently uses a linear solver. - if (options->minimizer_type == TRUST_REGION && - options->num_linear_solver_threads > 1) { - LOG(WARNING) - << "OpenMP support is not compiled into this binary; " - << "only options.num_linear_solver_threads=1 is supported. Switching " - << "to single threaded mode."; - options->num_linear_solver_threads = 1; - } -#endif // CERES_USE_OPENMP } void SetupCommonMinimizerOptions(PreprocessedProblem* pp) { |