xref: /netbsd-src/external/gpl3/gcc.old/dist/libstdc++-v3/include/parallel/compiletime_settings.h (revision 8feb0f0b7eaff0608f8350bbfa3098827b4bb91b)
136ac495dSmrg // -*- C++ -*-
236ac495dSmrg 
3*8feb0f0bSmrg // Copyright (C) 2007-2020 Free Software Foundation, Inc.
436ac495dSmrg //
536ac495dSmrg // This file is part of the GNU ISO C++ Library.  This library is free
636ac495dSmrg // software; you can redistribute it and/or modify it under the terms
736ac495dSmrg // of the GNU General Public License as published by the Free Software
836ac495dSmrg // Foundation; either version 3, or (at your option) any later
936ac495dSmrg // version.
1036ac495dSmrg 
1136ac495dSmrg // This library is distributed in the hope that it will be useful, but
1236ac495dSmrg // WITHOUT ANY WARRANTY; without even the implied warranty of
1336ac495dSmrg // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1436ac495dSmrg // General Public License for more details.
1536ac495dSmrg 
1636ac495dSmrg // Under Section 7 of GPL version 3, you are granted additional
1736ac495dSmrg // permissions described in the GCC Runtime Library Exception, version
1836ac495dSmrg // 3.1, as published by the Free Software Foundation.
1936ac495dSmrg 
2036ac495dSmrg // You should have received a copy of the GNU General Public License and
2136ac495dSmrg // a copy of the GCC Runtime Library Exception along with this program;
2236ac495dSmrg // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
2336ac495dSmrg // <http://www.gnu.org/licenses/>.
2436ac495dSmrg 
2536ac495dSmrg /** @file parallel/compiletime_settings.h
2636ac495dSmrg  *  @brief Defines on options concerning debugging and performance, at
2736ac495dSmrg  *  compile-time.
2836ac495dSmrg  *  This file is a GNU parallel extension to the Standard C++ Library.
2936ac495dSmrg  */
3036ac495dSmrg 
3136ac495dSmrg // Written by Johannes Singler.
3236ac495dSmrg 
3336ac495dSmrg #include <cstdio>
3436ac495dSmrg 
3536ac495dSmrg /** @brief Determine verbosity level of the parallel mode.
3636ac495dSmrg  *  Level 1 prints a message each time a parallel-mode function is entered. */
3736ac495dSmrg #define _GLIBCXX_VERBOSE_LEVEL 0
3836ac495dSmrg 
3936ac495dSmrg /** @def _GLIBCXX_CALL
4036ac495dSmrg  *  @brief Macro to produce log message when entering a function.
4136ac495dSmrg  *  @param __n Input size.
4236ac495dSmrg  *  @see _GLIBCXX_VERBOSE_LEVEL */
4336ac495dSmrg #if (_GLIBCXX_VERBOSE_LEVEL == 0)
4436ac495dSmrg #define _GLIBCXX_CALL(__n)
4536ac495dSmrg #endif
4636ac495dSmrg #if (_GLIBCXX_VERBOSE_LEVEL == 1)
4736ac495dSmrg #define _GLIBCXX_CALL(__n) \
4836ac495dSmrg   printf("   %__s:\niam = %d, __n = %ld, __num_threads = %d\n", \
4936ac495dSmrg   __PRETTY_FUNCTION__, omp_get_thread_num(), (__n), __get_max_threads());
5036ac495dSmrg #endif
5136ac495dSmrg 
5236ac495dSmrg #ifndef _GLIBCXX_SCALE_DOWN_FPU
5336ac495dSmrg /** @brief Use floating-point scaling instead of modulo for mapping
5436ac495dSmrg  *  random numbers to a range.  This can be faster on certain CPUs. */
5536ac495dSmrg #define _GLIBCXX_SCALE_DOWN_FPU 0
5636ac495dSmrg #endif
5736ac495dSmrg 
5836ac495dSmrg #ifndef _GLIBCXX_PARALLEL_ASSERTIONS
5936ac495dSmrg /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
6036ac495dSmrg  *  Should be switched on only locally. */
6136ac495dSmrg #define _GLIBCXX_PARALLEL_ASSERTIONS (_GLIBCXX_ASSERTIONS+0)
6236ac495dSmrg #endif
6336ac495dSmrg 
6436ac495dSmrg #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1
6536ac495dSmrg /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
6636ac495dSmrg  *  Consider the size of the L1 cache for
6736ac495dSmrg *  gnu_parallel::__parallel_random_shuffle(). */
6836ac495dSmrg #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1 0
6936ac495dSmrg #endif
7036ac495dSmrg #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB
7136ac495dSmrg /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
7236ac495dSmrg  *  Consider the size of the TLB for
7336ac495dSmrg *  gnu_parallel::__parallel_random_shuffle(). */
7436ac495dSmrg #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB 0
7536ac495dSmrg #endif
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