35 lines
957 B
C++
35 lines
957 B
C++
/*!
|
|
* Copyright 2014 by Contributors
|
|
* \file omp.h
|
|
* \brief header to handle OpenMP compatibility issues
|
|
* \author Tianqi Chen
|
|
*/
|
|
#ifndef XGBOOST_UTILS_OMP_H_
|
|
#define XGBOOST_UTILS_OMP_H_
|
|
|
|
#if defined(_OPENMP) && !defined(DISABLE_OPENMP)
|
|
#include <omp.h>
|
|
#else
|
|
#if !defined(DISABLE_OPENMP) && !defined(_MSC_VER)
|
|
// use pragma message instead of warning
|
|
#pragma message("Warning: OpenMP is not available,"\
|
|
"xgboost will be compiled into single-thread code."\
|
|
"Use OpenMP-enabled compiler to get benefit of multi-threading")
|
|
#endif
|
|
inline int omp_get_thread_num() { return 0; }
|
|
inline int omp_get_num_threads() { return 1; }
|
|
inline void omp_set_num_threads(int nthread) {}
|
|
inline int omp_get_num_procs() { return 1; }
|
|
#endif
|
|
|
|
// loop variable used in openmp
|
|
namespace xgboost {
|
|
#ifdef _MSC_VER
|
|
typedef int bst_omp_uint;
|
|
#else
|
|
typedef unsigned bst_omp_uint;
|
|
#endif
|
|
} // namespace xgboost
|
|
|
|
#endif // XGBOOST_UTILS_OMP_H_
|