compiletime_settings.h

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00001 // -*- C++ -*-
00002 
00003 // Copyright (C) 2007 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the terms
00007 // of the GNU General Public License as published by the Free Software
00008 // Foundation; either version 2, or (at your option) any later
00009 // version.
00010 
00011 // This library is distributed in the hope that it will be useful, but
00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // General Public License for more details.
00015 
00016 // You should have received a copy of the GNU General Public License
00017 // along with this library; see the file COPYING.  If not, write to
00018 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
00019 // MA 02111-1307, USA.
00020 
00021 // As a special exception, you may use this file as part of a free
00022 // software library without restriction.  Specifically, if other files
00023 // instantiate templates or use macros or inline functions from this
00024 // file, or you compile this file and link it with other files to
00025 // produce an executable, this file does not by itself cause the
00026 // resulting executable to be covered by the GNU General Public
00027 // License.  This exception does not however invalidate any other
00028 // reasons why the executable file might be covered by the GNU General
00029 // Public License.
00030 
00031 /** @file parallel/compiletime_settings.h
00032  *  @brief Defines on options concerning debugging and performance, at
00033  *  compile-time.
00034  *  This file is a GNU parallel extension to the Standard C++ Library.
00035  */
00036 
00037 // Written by Johannes Singler.
00038 
00039 #include <cstdio>
00040 
00041 /** @brief Determine verbosity level of the parallel mode.
00042  *  Level 1 prints a message each time a parallel-mode function is entered. */
00043 #define _GLIBCXX_VERBOSE_LEVEL 0
00044 
00045 /** @def _GLIBCXX_CALL
00046  *  @brief Macro to produce log message when entering a function.
00047  *  @param n Input size.
00048  *  @see _GLIBCXX_VERBOSE_LEVEL */
00049 #if (_GLIBCXX_VERBOSE_LEVEL == 0)
00050 #define _GLIBCXX_CALL(n)
00051 #endif
00052 #if (_GLIBCXX_VERBOSE_LEVEL == 1)
00053 #define _GLIBCXX_CALL(n) \
00054   printf("   %s:\niam = %d, n = %ld, num_threads = %d\n", \
00055   __PRETTY_FUNCTION__, omp_get_thread_num(), (n), get_max_threads());
00056 #endif
00057 
00058 #ifndef _GLIBCXX_SCALE_DOWN_FPU
00059 /** @brief Use floating-point scaling instead of modulo for mapping
00060  *  random numbers to a range.  This can be faster on certain CPUs. */
00061 #define _GLIBCXX_SCALE_DOWN_FPU 0
00062 #endif
00063 
00064 #ifndef _GLIBCXX_ASSERTIONS
00065 /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
00066  *  Should be switched on only locally. */
00067 #define _GLIBCXX_ASSERTIONS 0
00068 #endif
00069 
00070 #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1
00071 /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
00072  *  Consider the size of the L1 cache for
00073  *  __gnu_parallel::parallel_random_shuffle(). */
00074 #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_L1 0
00075 #endif
00076 #ifndef _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB
00077 /** @brief Switch on many _GLIBCXX_PARALLEL_ASSERTions in parallel code.
00078  *  Consider the size of the TLB for
00079  *  __gnu_parallel::parallel_random_shuffle(). */
00080 #define _GLIBCXX_RANDOM_SHUFFLE_CONSIDER_TLB 0
00081 #endif

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