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     options->try_Delaunay_triangulation = 0;
  71
  72     options->polynomial_approximation = BV_APPROX_SIGN_NONE;
  73     options->approximation_method = BV_APPROX_NONE;
  74     options->scale_flags = 0;
  75
  76 #ifdef HAVE_LIBGLPK
  77     options->gbr_lp_solver = BV_GBR_GLPK;
  78 #elif defined HAVE_LIBCDDGMP
  79     options->gbr_lp_solver = BV_GBR_CDD;
  80 #else
  81     options->gbr_lp_solver = BV_GBR_NONE;
  82 #endif
  83
  84     options->bernstein_optimize = BV_BERNSTEIN_NONE;
  85
  86     options->bernstein_recurse = BV_BERNSTEIN_FACTORS;
  87
  88     return options;
  89 }
  90
  91 void barvinok_options_free(struct barvinok_options *options)
  92 {
  93     free(options->stats);
  94     free(options);
  95 }
  96
  97 enum {
  98     SCALE_FAST,
  99     SCALE_SLOW,
 100     SCALE_NARROW,
 101     SCALE_NARROW2
 102 };
 103
 104 const char *scale_opts[] = {
 105     "fast",
 106     "slow",
 107     "narrow",
 108     "narrow2",
 109     NULL
 110 };
 111
 112 static struct argp_option approx_argp_options[] = {
 113     { "polynomial-approximation", BV_OPT_POLAPPROX, "lower|upper",      1 },
 114     { "approximation-method", BV_OPT_APPROX,        "scale|drop|volume",        0,
 115         "method to use in polynomial approximation [default: drop]" },
 116     { "scale-options",      BV_OPT_SCALE,           "fast|slow,narrow|narrow2", 0 },
 117     { 0 }
 118 };
 119
 120 static struct argp_option barvinok_argp_options[] = {
 121     { "index",              BV_OPT_MAXINDEX,        "int",              0,
 122        "maximal index of simple cones in decomposition" },
 123     { "primal",             BV_OPT_PRIMAL,          0,                  0 },
 124     { "table",              BV_OPT_TABLE,           0,                  0 },
 125     { "specialization",     BV_OPT_SPECIALIZATION,  "[bf|df|random]",   0 },
 126     { "gbr",                BV_OPT_GBR,             "[cdd]",            0,
 127       "solver to use for basis reduction" },
 128     { "version",            'V',                    0,                  0 },
 129     { 0 }
 130 };
 131
 132 static error_t approx_parse_opt(int key, char *arg, struct argp_state *state)
 133 {
 134     struct barvinok_options *options = state->input;
 135     char *subopt;
 136
 137     switch (key) {
 138     case BV_OPT_POLAPPROX:
 139         if (!arg) {
 140             options->polynomial_approximation = BV_APPROX_SIGN_APPROX;
 141             if (options->approximation_method == BV_APPROX_NONE)
 142                 options->approximation_method = BV_APPROX_SCALE;
 143         } else {
 144             if (!strcmp(arg, "lower"))
 145                 options->polynomial_approximation = BV_APPROX_SIGN_LOWER;
 146             else if (!strcmp(arg, "upper"))
 147                 options->polynomial_approximation = BV_APPROX_SIGN_UPPER;
 148             if (options->approximation_method == BV_APPROX_NONE)
 149                 options->approximation_method = BV_APPROX_DROP;
 150         }
 151         break;
 152     case BV_OPT_APPROX:
 153         if (!strcmp(arg, "scale"))
 154             options->approximation_method = BV_APPROX_SCALE;
 155         else if (!strcmp(arg, "drop"))
 156             options->approximation_method = BV_APPROX_DROP;
 157         else if (!strcmp(arg, "volume"))
 158             options->approximation_method = BV_APPROX_VOLUME;
 159         else
 160             argp_error(state, "unknown value for --approximation-method option");
 161         break;
 162     case BV_OPT_SCALE:
 163         options->approximation_method = BV_APPROX_SCALE;
 164         while (*arg != '\0')
 165             switch (getsubopt(&arg, scale_opts, &subopt)) {
 166             case SCALE_FAST:
 167                 options->scale_flags |= BV_APPROX_SCALE_FAST;
 168                 break;
 169             case SCALE_SLOW:
 170                 options->scale_flags &= ~BV_APPROX_SCALE_FAST;
 171                 break;
 172             case SCALE_NARROW:
 173                 options->scale_flags |= BV_APPROX_SCALE_NARROW;
 174                 options->scale_flags &= ~BV_APPROX_SCALE_NARROW2;
 175                 break;
 176             case SCALE_NARROW2:
 177                 options->scale_flags |= BV_APPROX_SCALE_NARROW2;
 178                 options->scale_flags &= ~BV_APPROX_SCALE_NARROW;
 179                 break;
 180             default:
 181                 argp_error(state, "unknown suboption '%s'\n", subopt);
 182             }
 183         break;
 184     case ARGP_KEY_END:
 185         if (options->polynomial_approximation == BV_APPROX_SIGN_NONE &&
 186             options->approximation_method != BV_APPROX_NONE) {
 187             fprintf(stderr,
 188         "no polynomial approximation selected; reseting approximation method\n");
 189             options->approximation_method = BV_APPROX_NONE;
 190         }
 191         break;
 192     default:
 193         return ARGP_ERR_UNKNOWN;
 194     }
 195     return 0;
 196 }
 197
 198 static error_t barvinok_parse_opt(int key, char *arg, struct argp_state *state)
 199 {
 200     struct barvinok_options *options = state->input;
 201     char *subopt;
 202
 203     switch (key) {
 204     case ARGP_KEY_INIT:
 205         state->child_inputs[0] = options;
 206         break;
 207     case 'V':
 208         printf(barvinok_version());
 209         exit(0);
 210     case BV_OPT_SPECIALIZATION:
 211         if (!strcmp(arg, "bf"))
 212             options->incremental_specialization = BV_SPECIALIZATION_BF;
 213         else if (!strcmp(arg, "df"))
 214             options->incremental_specialization = BV_SPECIALIZATION_DF;
 215         else if (!strcmp(arg, "random"))
 216             options->incremental_specialization = BV_SPECIALIZATION_RANDOM;
 217         break;
 218     case BV_OPT_PRIMAL:
 219         options->primal = 1;
 220         break;
 221     case BV_OPT_TABLE:
 222         options->lookup_table = 1;
 223         break;
 224     case BV_OPT_GBR:
 225         if (!strcmp(arg, "cdd"))
 226             options->gbr_lp_solver = BV_GBR_CDD;
 227         break;
 228     case BV_OPT_MAXINDEX:
 229         options->max_index = strtoul(arg, NULL, 0);
 230         break;
 231     default:
 232         return ARGP_ERR_UNKNOWN;
 233     }
 234     return 0;
 235 }
 236
 237 static struct argp approx_argp = {
 238     approx_argp_options, approx_parse_opt, 0, 0
 239 };
 240
 241 static struct argp_child barvinok_children[] = {
 242     { &approx_argp,     0,      "polynomial approximation",     BV_GRP_APPROX },
 243     { 0 }
 244 };
 245
 246 struct argp barvinok_argp = {
 247     barvinok_argp_options, barvinok_parse_opt, 0, 0, barvinok_children
 248 };