1  // -*- C++ -*-
       2  
       3  // Copyright (C) 2007-2023 Free Software Foundation, Inc.
       4  //
       5  // This file is part of the GNU ISO C++ Library.  This library is free
       6  // software; you can redistribute it and/or modify it under the terms
       7  // of the GNU General Public License as published by the Free Software
       8  // Foundation; either version 3, or (at your option) any later
       9  // version.
      10  
      11  // This library is distributed in the hope that it will be useful, but
      12  // WITHOUT ANY WARRANTY; without even the implied warranty of
      13  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14  // General Public License for more details.
      15  
      16  // Under Section 7 of GPL version 3, you are granted additional
      17  // permissions described in the GCC Runtime Library Exception, version
      18  // 3.1, as published by the Free Software Foundation.
      19  
      20  // You should have received a copy of the GNU General Public License and
      21  // a copy of the GCC Runtime Library Exception along with this program;
      22  // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23  // <http://www.gnu.org/licenses/>.
      24  
      25  /** @file parallel/compiletime_settings.h
      26   *  @brief Defines on options concerning debugging and performance, at
      27   *  compile-time.
      28   *  This file is a GNU parallel extension to the Standard C++ Library.
      29   */
      30  
      31  // Written by Johannes Singler.
      32  
      33  #include <cstdio>
      34  
      35  /** @brief Determine verbosity level of the parallel mode.
      36   *  Level 1 prints a message each time a parallel-mode function is entered. */
      37  #define _GLIBCXX_VERBOSE_LEVEL 0
      38  
      39  /** @def _GLIBCXX_CALL
      40   *  @brief Macro to produce log message when entering a function.
      41   *  @param __n Input size.
      42   *  @see _GLIBCXX_VERBOSE_LEVEL */
      43  #if (_GLIBCXX_VERBOSE_LEVEL == 0)
      44  #define _GLIBCXX_CALL(__n)
      45  #endif
      46  #if (_GLIBCXX_VERBOSE_LEVEL == 1)
      47  #define _GLIBCXX_CALL(__n) \
      48    printf("   %__s:\niam = %d, __n = %ld, __num_threads = %d\n", \
      49    __PRETTY_FUNCTION__, omp_get_thread_num(), (__n), __get_max_threads());
      50  #endif
      51  
      52  #ifndef _GLIBCXX_SCALE_DOWN_FPU
      53  /** @brief Use floating-point scaling instead of modulo for mapping
      54   *  random numbers to a range.  This can be faster on certain CPUs. */
      55  #define _GLIBCXX_SCALE_DOWN_FPU 0
      56  #endif
      57  
      58  #ifndef _GLIBCXX_PARALLEL_ASSERTIONS
      59  /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
      60   *  Should be switched on only locally. */
      61  #define _GLIBCXX_PARALLEL_ASSERTIONS (_GLIBCXX_ASSERTIONS+0)
      62  #endif
      63  
      64  #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1
      65  /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
      66   *  Consider the size of the L1 cache for
      67  *  gnu_parallel::__parallel_random_shuffle(). */
      68  #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1 0
      69  #endif
      70  #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB
      71  /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
      72   *  Consider the size of the TLB for
      73  *  gnu_parallel::__parallel_random_shuffle(). */
      74  #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB 0
      75  #endif