# CoinAbcCommon.hpp

Go to the documentation of this file.

    00001 /* $Id: CoinAbcCommon.hpp 1910 2013-01-27 02:00:13Z stefan $ */
    00002 // Copyright (C) 2000, International Business Machines
    00003 // Corporation and others, Copyright (C) 2012, FasterCoin.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005 #ifndef CoinAbcCommon_H
    00006 #define CoinAbcCommon_H
    00007 #ifndef COIN_FAC_NEW
    00008 #define COIN_FAC_NEW
    00009 #endif
    00010
    00011 #include "CoinPragma.hpp"
    00012 #include "CoinUtilsConfig.h"
    00013 #include <iostream>
    00014 #include <string>
    00015 #include <cassert>
    00016 #include <cstdio>
    00017 #include <cmath>
    00018 #include "AbcCommon.hpp"
    00019 #include "CoinHelperFunctions.hpp"
    00020 //#include "config.h"
    00021 typedef double CoinSimplexDouble;
    00022 typedef int CoinSimplexInt;
    00023 typedef unsigned int CoinSimplexUnsignedInt;
    00024 //#define MOVE_REPLACE_PART1A
    00025 #if defined(_MSC_VER)
    00026 #define ABC_INLINE __forceinline
    00027 #elif defined(__GNUC__)
    00028 #define ABC_INLINE __attribute__((always_inline))
    00029 #else
    00030 #define ABC_INLINE
    00031 #endif
    00032 #ifndef ABC_PARALLEL
    00033 #ifdef HAS_CILK
    00034 #define ABC_PARALLEL 2
    00035 #else
    00036 #define ABC_PARALLEL 0
    00037 #endif
    00038 #endif
    00039 #if ABC_PARALLEL==2
    00040 //#define EARLY_FACTORIZE
    00041 #ifndef FAKE_CILK
    00042 #include <cilk/cilk.h>
    00043 #else
    00044 #define cilk_for for
    00045 #define cilk_spawn
    00046 #define cilk_sync
    00047 #endif
    00048 #else
    00049 #define cilk_for for
    00050 #define cilk_spawn
    00051 #define cilk_sync
    00052 //#define ABC_PARALLEL 1
    00053 #endif
    00054 #define SLACK_VALUE 1
    00055 #define ABC_INSTRUMENT 1 //2
    00056 #if ABC_INSTRUMENT!=2
    00057 // Below so can do deterministic B&B
    00058 #define instrument_start(name,x)
    00059 #define instrument_add(x)
    00060 #define instrument_end()
    00061 // one off
    00062 #define instrument_do(name,x)
    00063 // as end but multiply by factor
    00064 #define instrument_end_and_adjust(x)
    00065 #else
    00066 void instrument_start(const char * type,int numberRowsEtc);
    00067 void instrument_add(int count);
    00068 void instrument_do(const char * type,double count);
    00069 void instrument_end();
    00070 void instrument_end_and_adjust(double factor);
    00071 #endif
    00072 #ifndef __BYTE_ORDER
    00073 #include <endian.h>
    00074 #endif
    00075 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00076 #define ABC_INTEL
    00077 #endif
    00078 #if COIN_BIG_DOUBLE==1
    00079 #undef USE_TEST_ZERO
    00080 #undef USE_TEST_REALLY_ZERO
    00081 #undef USE_TEST_ZERO_REGISTER
    00082 #undef USE_TEST_LESS_TOLERANCE
    00083 #undef USE_TEST_LESS_TOLERANCE_REGISTER
    00084 #define CoinFabs(x) fabsl(x)
    00085 #else
    00086 #define CoinFabs(x) fabs(x)
    00087 #endif
    00088 #ifdef USE_TEST_ZERO
    00089 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00090 #define TEST_DOUBLE_NONZERO(x) ((reinterpret_cast<int *>(&x))[1]!=0)
    00091 #else
    00092 #define TEST_DOUBLE_NONZERO(x) ((reinterpret_cast<int *>(&x))[0]!=0)
    00093 #endif
    00094 #else
    00095 //always drop through
    00096 #define TEST_DOUBLE_NONZERO(x) (true)
    00097 #endif
    00098 #define USE_TEST_INT_ZERO
    00099 #ifdef USE_TEST_INT_ZERO
    00100 #define TEST_INT_NONZERO(x) (x)
    00101 #else
    00102 //always drop through
    00103 #define TEST_INT_NONZERO(x) (true)
    00104 #endif
    00105 #ifdef USE_TEST_REALLY_ZERO
    00106 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00107 #define TEST_DOUBLE_REALLY_NONZERO(x) ((reinterpret_cast<int *>(&x))[1]!=0)
    00108 #else
    00109 #define TEST_DOUBLE_REALLY_NONZERO(x) ((reinterpret_cast<int *>(&x))[0]!=0)
    00110 #endif
    00111 #else
    00112 #define TEST_DOUBLE_REALLY_NONZERO(x) (x)
    00113 #endif
    00114 #ifdef USE_TEST_ZERO_REGISTER
    00115 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00116 #define TEST_DOUBLE_NONZERO_REGISTER(x) ((reinterpret_cast<int *>(&x))[1]!=0)
    00117 #else
    00118 #define TEST_DOUBLE_NONZERO_REGISTER(x) ((reinterpret_cast<int *>(&x))[0]!=0)
    00119 #endif
    00120 #else
    00121 //always drop through
    00122 #define TEST_DOUBLE_NONZERO_REGISTER(x) (true)
    00123 #endif
    00124 #define USE_FIXED_ZERO_TOLERANCE
    00125 #ifdef USE_FIXED_ZERO_TOLERANCE
    00126 // 3d400000... 0.5**43 approx 1.13687e-13
    00127 #ifdef USE_TEST_LESS_TOLERANCE
    00128 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00129 #define TEST_LESS_THAN_TOLERANCE(x) ((reinterpret_cast<int *>(&x))[1]&0x7ff00000<0x3d400000)
    00130 #define TEST_LESS_THAN_UPDATE_TOLERANCE(x) ((reinterpret_cast<int *>(&x))[1]&0x7ff00000<0x3d400000)
    00131 #else
    00132 #define TEST_LESS_THAN_TOLERANCE(x) ((reinterpret_cast<int *>(&x))[0]&0x7ff00000<0x3d400000)
    00133 #define TEST_LESS_THAN_UPDATE_TOLERANCE(x) ((reinterpret_cast<int *>(&x))[0]&0x7ff00000<0x3d400000)
    00134 #endif
    00135 #else
    00136 #define TEST_LESS_THAN_TOLERANCE(x) (fabs(x)<pow(0.5,43))
    00137 #define TEST_LESS_THAN_UPDATE_TOLERANCE(x) (fabs(x)<pow(0.5,43))
    00138 #endif
    00139 #ifdef USE_TEST_LESS_TOLERANCE_REGISTER
    00140 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00141 #define TEST_LESS_THAN_TOLERANCE_REGISTER(x) ((reinterpret_cast<int *>(&x))[1]&0x7ff00000<0x3d400000)
    00142 #else
    00143 #define TEST_LESS_THAN_TOLERANCE_REGISTER(x) ((reinterpret_cast<int *>(&x))[0]&0x7ff00000<0x3d400000)
    00144 #endif
    00145 #else
    00146 #define TEST_LESS_THAN_TOLERANCE_REGISTER(x) (fabs(x)<pow(0.5,43))
    00147 #endif
    00148 #else
    00149 #define TEST_LESS_THAN_TOLERANCE(x) (fabs(x)<zeroTolerance_)
    00150 #define TEST_LESS_THAN_TOLERANCE_REGISTER(x) (fabs(x)<zeroTolerance_)
    00151 #endif
    00152 #if COIN_BIG_DOUBLE!=1
    00153 typedef unsigned int CoinExponent;
    00154 #if __BYTE_ORDER == __LITTLE_ENDIAN
    00155 #define ABC_EXPONENT(x) ((reinterpret_cast<int *>(&x))[1]&0x7ff00000)
    00156 #else
    00157 #define ABC_EXPONENT(x) ((reinterpret_cast<int *>(&x))[0]&0x7ff00000)
    00158 #endif
    00159 #define TEST_EXPONENT_LESS_THAN_TOLERANCE(x) (x<0x3d400000)
    00160 #define TEST_EXPONENT_LESS_THAN_UPDATE_TOLERANCE(x) (x<0x3d400000)
    00161 #define TEST_EXPONENT_NON_ZERO(x) (x)
    00162 #else
    00163 typedef long double  CoinExponent;
    00164 #define ABC_EXPONENT(x) (x)
    00165 #define TEST_EXPONENT_LESS_THAN_TOLERANCE(x) (fabs(x)<pow(0.5,43))
    00166 #define TEST_EXPONENT_LESS_THAN_UPDATE_TOLERANCE(x) (fabs(x)<pow(0.5,43))
    00167 #define TEST_EXPONENT_NON_ZERO(x) (x)
    00168 #endif
    00169 #ifdef INT_IS_8
    00170 #define COINFACTORIZATION_BITS_PER_INT 64
    00171 #define COINFACTORIZATION_SHIFT_PER_INT 6
    00172 #define COINFACTORIZATION_MASK_PER_INT 0x3f
    00173 #else
    00174 #define COINFACTORIZATION_BITS_PER_INT 32
    00175 #define COINFACTORIZATION_SHIFT_PER_INT 5
    00176 #define COINFACTORIZATION_MASK_PER_INT 0x1f
    00177 #endif
    00178 #if ABC_USE_HOMEGROWN_LAPACK==1
    00179 #define ABC_USE_LAPACK
    00180 #endif
    00181 #ifdef ABC_USE_LAPACK
    00182 #define F77_FUNC(x,y) x##_
    00183 #define ABC_DENSE_CODE 1
    00184 /* Type of Fortran integer translated into C */
    00185 #ifndef ipfint
    00186 //typedef ipfint FORTRAN_INTEGER_TYPE ;
    00187 typedef int ipfint;
    00188 typedef const int cipfint;
    00189 #endif
    00190 enum CBLAS_ORDER {CblasRowMajor=101, CblasColMajor=102 };
    00191 enum CBLAS_TRANSPOSE {CblasNoTrans=111, CblasTrans=112, CblasConjTrans=113,
    00192                       AtlasConj=114};
    00193 #define CLAPACK
    00194 // using simple lapack interface
    00195 extern "C"
    00196 {
    00198   void F77_FUNC(dgetrs,DGETRS)(char *trans, cipfint *n,
    00199                                cipfint *nrhs, const CoinSimplexDouble *A, cipfint *ldA,
    00200                                cipfint * ipiv, CoinSimplexDouble *B, cipfint *ldB, ipfint *info,
    00201                                int trans_len);
    00203   void F77_FUNC(dgetrf,DGETRF)(ipfint * m, ipfint *n,
    00204                                CoinSimplexDouble *A, ipfint *ldA,
    00205                                ipfint * ipiv, ipfint *info);
    00206   int clapack_dgetrf(const enum CBLAS_ORDER Order, const int M, const int N,
    00207                      double *A, const int lda, int *ipiv);
    00208   int clapack_dgetrs
    00209   (const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE Trans,
    00210    const int N, const int NRHS, const double *A, const int lda,
    00211    const int *ipiv, double *B, const int ldb);
    00212 }
    00213 #else // use home grown
    00214 /* Dense coding
    00215    -1 use homegrown but just for factorization
    00216    0 off all dense
    00217    2 use homegrown for factorization and solves
    00218 */
    00219 #ifndef ABC_USE_HOMEGROWN_LAPACK
    00220 #define ABC_DENSE_CODE 2
    00221 #else
    00222 #define ABC_DENSE_CODE ABC_USE_HOMEGROWN_LAPACK
    00223 #endif
    00224 #endif
    00225 typedef unsigned char CoinCheckZero;
    00226 template <class T> inline void
    00227 CoinAbcMemset0(register T* to, const int size)
    00228 {
    00229 #ifndef NDEBUG
    00230   // Some debug so check
    00231   if (size < 0)
    00232     throw CoinError("trying to fill negative number of entries",
    00233                     "CoinAbcMemset0", "");
    00234 #endif
    00235   std::memset(to,0,size*sizeof(T));
    00236 }
    00237 template <class T> inline void
    00238 CoinAbcMemcpy(register T* to, register const T* from, const int size )
    00239 {
    00240 #ifndef NDEBUG
    00241   // Some debug so check
    00242   if (size < 0)
    00243     throw CoinError("trying to copy negative number of entries",
    00244                     "CoinAbcMemcpy", "");
    00245
    00246 #endif
    00247   std::memcpy(to,from,size*sizeof(T));
    00248 }
    00249 class ClpSimplex;
    00250 class AbcSimplex;
    00251 class AbcTolerancesEtc  {
    00252
    00253 public:
    00254
    00255
    00256
    00258
    00259
    00260   AbcTolerancesEtc();
    00261
    00263   AbcTolerancesEtc(const ClpSimplex * model);
    00264   AbcTolerancesEtc(const AbcSimplex * model);
    00265
    00267   AbcTolerancesEtc(const AbcTolerancesEtc &);
    00268
    00270   AbcTolerancesEtc & operator=(const AbcTolerancesEtc& rhs);
    00271
    00273   ~AbcTolerancesEtc ();
    00275
    00276
    00277   //---------------------------------------------------------------------------
    00278
    00279 public:
    00281
    00282
    00283   double zeroTolerance_;
    00285   double primalToleranceToGetOptimal_;
    00287   double largeValue_;
    00289   double alphaAccuracy_;
    00291   double dualBound_;
    00293   double dualTolerance_;
    00295   double primalTolerance_;
    00297   double infeasibilityCost_;
    00307   double incomingInfeasibility_;
    00308   double allowedInfeasibility_;
    00310   int baseIteration_;
    00312   int numberRefinements_;
    00315   int forceFactorization_;
    00323   int perturbation_;
    00325   int dontFactorizePivots_;
    00328   int maximumPivots_;
    00330 };
    00331 #endif

All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines