options.c

   1 #include <unistd.h>
   2 #include <barvinok/options.h>
   3 #include <barvinok/util.h>
   4 #include "argp.h"
   5 #include "config.h"
   6
   7 #ifdef HAVE_GROWING_CHERNIKOVA
   8 #define MAXRAYS    (POL_NO_DUAL | POL_INTEGER)
   9 #else
  10 #define MAXRAYS  600
  11 #endif
  12
  13 #ifndef HAVE_LIBGLPK
  14 Vector *Polyhedron_Sample(Polyhedron *P, struct barvinok_options *options)
  15 {
  16     assert(0);
  17 }
  18 #endif
  19
  20 #define ALLOC(type) (type*)malloc(sizeof(type))
  21
  22 void barvinok_stats_clear(struct barvinok_stats *stats)
  23 {
  24     stats->base_cones = 0;
  25 }
  26
  27 void barvinok_stats_print(struct barvinok_stats *stats, FILE *out)
  28 {
  29     fprintf(out, "Base cones: %d\n", stats->base_cones);
  30 }
  31
  32 struct barvinok_options *barvinok_options_new_with_defaults()
  33 {
  34     struct barvinok_options *options = ALLOC(struct barvinok_options);
  35     if (!options)
  36         return NULL;
  37
  38     options->stats = ALLOC(struct barvinok_stats);
  39     if (!options->stats) {
  40         free(options);
  41         return NULL;
  42     }
  43
  44     barvinok_stats_clear(options->stats);
  45
  46     options->LLL_a = 1;
  47     options->LLL_b = 1;
  48
  49     options->MaxRays = MAXRAYS;
  50
  51 #ifdef USE_INCREMENTAL_BF
  52     options->incremental_specialization = 2;
  53 #elif defined USE_INCREMENTAL_DF
  54     options->incremental_specialization = 1;
  55 #else
  56     options->incremental_specialization = 0;
  57 #endif
  58     options->max_index = 1;
  59     options->primal = 0;
  60 #ifdef USE_MODULO
  61     options->lookup_table = 0;
  62 #else
  63     options->lookup_table = 1;
  64 #endif
  65 #ifdef HAVE_LIBGLPK
  66     options->count_sample_infinite = 1;
  67 #else
  68     options->count_sample_infinite = 0;
  69 #endif
  70
  71     options->polynomial_approximation = BV_APPROX_SIGN_NONE;
  72     options->approximation_method = BV_APPROX_NONE;
  73
  74 #ifdef HAVE_LIBGLPK
  75     options->gbr_lp_solver = BV_GBR_GLPK;
  76 #elif defined HAVE_LIBCDDGMP
  77     options->gbr_lp_solver = BV_GBR_CDD;
  78 #else
  79     options->gbr_lp_solver = BV_GBR_NONE;
  80 #endif
  81
  82     options->bernstein_optimize = BV_BERNSTEIN_NONE;
  83
  84     options->bernstein_recurse = BV_BERNSTEIN_FACTORS;
  85
  86     return options;
  87 }
  88
  89 void barvinok_options_free(struct barvinok_options *options)
  90 {
  91     free(options->stats);
  92     free(options);
  93 }
  94
  95 enum {
  96     SCALE_FAST,
  97     SCALE_SLOW
  98 };
  99
 100 const char *scale_opts[] = {
 101     "fast",
 102     "slow",
 103     NULL
 104 };
 105
 106 struct argp_option barvinok_argp_options[] = {
 107     { "index",              BV_OPT_MAXINDEX,        "int",              0,
 108        "maximal index of simple cones in decomposition" },
 109     { "primal",             BV_OPT_PRIMAL,          0,                  0 },
 110     { "table",              BV_OPT_TABLE,           0,                  0 },
 111     { "specialization",     BV_OPT_SPECIALIZATION,  "[bf|df|random]",   0 },
 112     { "polynomial-approximation", BV_OPT_POLAPPROX, "lower|upper",      1 },
 113     { "approximation-method", BV_OPT_APPROX,        "scale|drop",       0,
 114         "method to use in polynomial approximation [default: drop]" },
 115     { "scale-options",      BV_OPT_SCALE,           "fast|slow",        0 },
 116     { "gbr",                BV_OPT_GBR,             "[cdd]",            0,
 117       "solver to use for basis reduction" },
 118     { "version",            'V',                    0,                  0 },
 119     { 0 }
 120 };
 121
 122 error_t barvinok_parse_opt(int key, char *arg, struct argp_state *state)
 123 {
 124     struct barvinok_options *options = state->input;
 125     char *subopt;
 126
 127     switch (key) {
 128     case 'V':
 129         printf(barvinok_version());
 130         exit(0);
 131     case BV_OPT_SPECIALIZATION:
 132         if (!strcmp(arg, "bf"))
 133             options->incremental_specialization = BV_SPECIALIZATION_BF;
 134         else if (!strcmp(arg, "df"))
 135             options->incremental_specialization = BV_SPECIALIZATION_DF;
 136         else if (!strcmp(arg, "random"))
 137             options->incremental_specialization = BV_SPECIALIZATION_RANDOM;
 138         break;
 139     case BV_OPT_PRIMAL:
 140         options->primal = 1;
 141         break;
 142     case BV_OPT_TABLE:
 143         options->lookup_table = 1;
 144         break;
 145     case BV_OPT_GBR:
 146         if (!strcmp(arg, "cdd"))
 147             options->gbr_lp_solver = BV_GBR_CDD;
 148         break;
 149     case BV_OPT_MAXINDEX:
 150         options->max_index = strtoul(arg, NULL, 0);
 151         break;
 152     case BV_OPT_POLAPPROX:
 153         if (!arg) {
 154             options->polynomial_approximation = BV_APPROX_SIGN_APPROX;
 155             if (options->approximation_method == BV_APPROX_NONE)
 156                 options->approximation_method = BV_APPROX_SCALE;
 157         } else {
 158             if (!strcmp(arg, "lower"))
 159                 options->polynomial_approximation = BV_APPROX_SIGN_LOWER;
 160             else if (!strcmp(arg, "upper"))
 161                 options->polynomial_approximation = BV_APPROX_SIGN_UPPER;
 162             if (options->approximation_method == BV_APPROX_NONE)
 163                 options->approximation_method = BV_APPROX_DROP;
 164         }
 165         break;
 166     case BV_OPT_APPROX:
 167         if (!strcmp(arg, "scale"))
 168             options->approximation_method = BV_APPROX_SCALE;
 169         else if (!strcmp(arg, "drop"))
 170             options->approximation_method = BV_APPROX_DROP;
 171         break;
 172     case BV_OPT_SCALE:
 173         options->approximation_method = BV_APPROX_SCALE;
 174         while (*arg != '\0')
 175             switch (getsubopt(&arg, scale_opts, &subopt)) {
 176             case SCALE_FAST:
 177                 options->scale_flags |= BV_APPROX_SCALE_FAST;
 178                 break;
 179             case SCALE_SLOW:
 180                 options->scale_flags &= ~BV_APPROX_SCALE_FAST;
 181                 break;
 182             default:
 183                 argp_error(state, "unknown suboption '%s'\n", subopt);
 184             }
 185         break;
 186     case ARGP_KEY_END:
 187         if (options->polynomial_approximation == BV_APPROX_SIGN_NONE &&
 188             options->approximation_method != BV_APPROX_NONE) {
 189             fprintf(stderr,
 190         "no polynomial approximation selected; reseting approximation method\n");
 191             options->approximation_method = BV_APPROX_NONE;
 192         }
 193         break;
 194     default:
 195         return ARGP_ERR_UNKNOWN;
 196     }
 197     return 0;
 198 }
 199
 200 struct argp barvinok_argp = {
 201     barvinok_argp_options, barvinok_parse_opt, 0, 0
 202 };