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Diffstat (limited to 'ml/dlib/dlib/svm/structural_svm_problem_threaded_abstract.h')
| -rw-r--r-- | ml/dlib/dlib/svm/structural_svm_problem_threaded_abstract.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/ml/dlib/dlib/svm/structural_svm_problem_threaded_abstract.h b/ml/dlib/dlib/svm/structural_svm_problem_threaded_abstract.h new file mode 100644 index 000000000..3cfc6a6eb --- /dev/null +++ b/ml/dlib/dlib/svm/structural_svm_problem_threaded_abstract.h @@ -0,0 +1,68 @@ +// Copyright (C) 2011 Davis E. King (davis@dlib.net) +// License: Boost Software License See LICENSE.txt for the full license. +#undef DLIB_STRUCTURAL_SVM_PRObLEM_THREADED_ABSTRACT_Hh_ +#ifdef DLIB_STRUCTURAL_SVM_PRObLEM_THREADED_ABSTRACT_Hh_ + +#include "structural_svm_problem_abstract.h" +#include "../matrix.h" + +namespace dlib +{ + +// ---------------------------------------------------------------------------------------- + + template < + typename matrix_type_, + typename feature_vector_type_ = matrix_type_ + > + class structural_svm_problem_threaded : public structural_svm_problem<matrix_type_,feature_vector_type_> + { + public: + /*! + WHAT THIS OBJECT REPRESENTS + This object is identical to the structural_svm_problem object defined in + dlib/svm/structural_svm_problem_abstract.h except that its constructor + takes a number which defines how many threads will be used to make concurrent + calls to the separation_oracle() routine. + + So this object lets you take advantage of a multi-core system. You should + set the num_threads parameter equal to the number of available cores. Note + that the separation_oracle() function which you provide must be thread safe + if you are to use this version of the structural_svm_problem. In + particular, it must be safe to call separation_oracle() concurrently from + different threads. However, it is guaranteed that different threads will + never make concurrent calls to separation_oracle() using the same idx value + (i.e. the first argument). + !*/ + + typedef matrix_type_ matrix_type; + typedef typename matrix_type::type scalar_type; + typedef feature_vector_type_ feature_vector_type; + + structural_svm_problem ( + unsigned long num_threads + ); + /*! + ensures + - this object is properly initialized + - #get_num_threads() == num_threads + !*/ + + unsigned long get_num_threads ( + ) const; + /*! + ensures + - Returns the number of threads which will be used to make concurrent + calls to the separation_oracle() function. + !*/ + + }; + +// ---------------------------------------------------------------------------------------- + +} + +#endif // DLIB_STRUCTURAL_SVM_PRObLEM_THREADED_ABSTRACT_Hh_ + + + |