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  1. // -*- C++ -*-
  2.  
  3. // Copyright (C) 2007-2015 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_ASSERTIONS
  59. /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
  60.  *  Should be switched on only locally. */
  61. #define _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
  76.