star-line

Structure for accelerating line importance sampling
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test_sln_tree.c (14758B)


      1 /* Copyright (C) 2022, 2026 |Méso|Star> (contact@meso-star.com)
      2  * Copyright (C) 2026 Université de Lorraine
      3  * Copyright (C) 2022 Centre National de la Recherche Scientifique
      4  * Copyright (C) 2022 Université Paul Sabatier
      5  *
      6  * This program is free software: you can redistribute it and/or modify
      7  * it under the terms of the GNU General Public License as published by
      8  * the Free Software Foundation, either version 3 of the License, or
      9  * (at your option) any later version.
     10  *
     11  * This program is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     14  * GNU General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU General Public License
     17  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     18 
     19 #include "test_sln_lines.h"
     20 #include "sln.h"
     21 
     22 #include <star/shtr.h>
     23 
     24 #include <rsys/algorithm.h>
     25 #include <rsys/math.h>
     26 #include <rsys/mem_allocator.h>
     27 
     28 /*******************************************************************************
     29  * Helper function
     30  ******************************************************************************/
     31 /* Return the index of the line in the line_list or SIZE_MAX if the line does
     32  * not exist */
     33 static INLINE size_t
     34 find_line
     35   (struct shtr_line_list* line_list,
     36    const struct shtr_line* line)
     37 {
     38   struct shtr_line ln = SHTR_LINE_NULL;
     39   size_t lo, hi, mid;
     40   size_t iline;
     41   size_t nlines;
     42 
     43   CHK(shtr_line_list_get_size(line_list, &nlines) == RES_OK);
     44 
     45   /* Dichotomic search */
     46   lo = 0; hi = nlines -1;
     47   while(lo < hi) {
     48     mid = (lo+hi)/2;
     49 
     50     CHK(shtr_line_list_at(line_list, mid, &ln) == RES_OK);
     51     if(line->wavenumber > ln.wavenumber) {
     52       lo = mid + 1;
     53     } else {
     54       hi = mid;
     55     }
     56   }
     57   iline = lo;
     58 
     59   CHK(shtr_line_list_at(line_list, iline, &ln) == RES_OK);
     60   if(ln.wavenumber != line->wavenumber) return SIZE_MAX;
     61 
     62 
     63   /* Find a line with the same wavenumber as the one searched for and whose
     64    * other member variables are also equal to those of the line searched for */
     65   while(ln.wavenumber == line->wavenumber
     66      && !shtr_line_eq(&ln, line)
     67      && iline < nlines) {
     68     iline += 1;
     69     CHK(shtr_line_list_at(line_list, iline, &ln) == RES_OK);
     70   }
     71 
     72   return shtr_line_eq(&ln, line) ? iline : SIZE_MAX;
     73 }
     74 
     75 /* This test assumes that all the lines contained into the list are
     76  * partitionned in the tree */
     77 static void
     78 check_tree
     79   (const struct sln_tree* tree,
     80    struct shtr_line_list* line_list)
     81 {
     82   #define STACK_SIZE 64
     83   const struct sln_node* stack[STACK_SIZE] = {NULL};
     84   struct sln_tree_desc desc = SLN_TREE_DESC_NULL;
     85   size_t istack = 0;
     86   const struct sln_node* node = NULL;
     87 
     88   char* found_lines = NULL;
     89   size_t found_nlines = 0;
     90   size_t line_list_sz;
     91 
     92   CHK(shtr_line_list_get_size(line_list, &line_list_sz) == RES_OK);
     93   CHK(sln_tree_get_desc(tree, &desc) == RES_OK);
     94 
     95   CHK(found_lines = mem_calloc(line_list_sz, sizeof(char)));
     96 
     97   node = sln_tree_get_root(tree);
     98   while(node) {
     99     if(!sln_node_is_leaf(node)) {
    100       CHK(sln_node_get_lines_count(node) > desc.max_nlines_per_leaf);
    101 
    102       ASSERT(istack < STACK_SIZE);
    103       stack[istack++] = sln_node_get_child(node, 1); /* Push the child 1 */
    104       node = sln_node_get_child(node, 0); /* Handle the child 0 */
    105 
    106     } else {
    107       size_t iline, nlines;
    108 
    109       nlines = sln_node_get_lines_count(node);
    110       CHK(nlines <= desc.max_nlines_per_leaf);
    111       FOR_EACH(iline, 0, nlines) {
    112         struct shtr_line line = SHTR_LINE_NULL;
    113         size_t found_iline = 0;
    114         CHK(sln_node_get_line(tree, node, iline, &line) == RES_OK);
    115         found_iline = find_line(line_list, &line);
    116         CHK(found_iline != SIZE_MAX); /* Line is found */
    117 
    118         if(!found_lines[found_iline]) {
    119           found_nlines += 1;
    120           found_lines[found_iline] = 1;
    121         }
    122       }
    123 
    124       node = istack ? stack[--istack] : NULL; /* Pop the next node */
    125     }
    126   }
    127 
    128   /* Check that all lines are found */
    129   CHK(found_nlines == line_list_sz);
    130 
    131   mem_rm(found_lines);
    132   #undef STACK_SIZE
    133 }
    134 
    135 static void
    136 dump_line(FILE* stream, const struct sln_mesh* mesh)
    137 {
    138   size_t i;
    139   CHK(mesh);
    140   FOR_EACH(i, 0, mesh->nvertices) {
    141     fprintf(stream, "%g %g\n",
    142       mesh->vertices[i].wavenumber,
    143       mesh->vertices[i].ka);
    144   }
    145 }
    146 
    147 static void
    148 test_tree
    149   (struct sln_device* sln,
    150    const struct sln_tree_create_args* tree_args_in,
    151    struct shtr_line_list* line_list)
    152 {
    153   struct sln_tree_create_args tree_args = SLN_TREE_CREATE_ARGS_DEFAULT;
    154   struct sln_tree_desc desc = SLN_TREE_DESC_NULL;
    155   struct sln_node_desc node_desc = SLN_NODE_DESC_NULL;
    156   struct sln_mesh mesh = SLN_MESH_NULL;
    157   struct sln_tree* tree = NULL;
    158   const struct sln_node* node = NULL;
    159   struct shtr_line line = SHTR_LINE_NULL;
    160   size_t nlines = 0;
    161 
    162   CHK(sln && tree_args_in && line_list);
    163   tree_args = *tree_args_in;
    164 
    165   CHK(sln_tree_create(NULL, &tree_args, &tree) == RES_BAD_ARG);
    166   CHK(sln_tree_create(sln, NULL, &tree) == RES_BAD_ARG);
    167   CHK(sln_tree_create(sln, &tree_args, NULL) == RES_BAD_ARG);
    168   CHK(sln_tree_create(sln, &tree_args, &tree) == RES_OK);
    169 
    170   CHK(shtr_line_list_get_size(line_list, &nlines) == RES_OK);
    171 
    172   CHK(sln_tree_get_desc(NULL, &desc) == RES_BAD_ARG);
    173   CHK(sln_tree_get_desc(tree, NULL) == RES_BAD_ARG);
    174   CHK(sln_tree_get_desc(tree, &desc) == RES_OK);
    175 
    176   CHK(desc.max_nlines_per_leaf >= 1);
    177   CHK(desc.mesh_decimation_err == tree_args.mesh_decimation_err);
    178   CHK(desc.mesh_type == tree_args.mesh_type);
    179   CHK(desc.line_profile == tree_args.line_profile);
    180   CHK(desc.nlines == nlines);
    181   CHK(desc.nvertices >= 1);
    182   CHK(desc.nnodes >= 1);
    183   CHK(desc.depth == (unsigned)log2i((int)round_up_pow2(desc.nlines)));
    184 
    185   CHK(node = sln_tree_get_root(tree));
    186   CHK(node != NULL);
    187 
    188   CHK(sln_node_get_desc(NULL, &node_desc) == RES_BAD_ARG);
    189   CHK(sln_node_get_desc(node, NULL) == RES_BAD_ARG);
    190   CHK(sln_node_get_desc(node, &node_desc) == RES_OK);
    191   CHK(node_desc.nlines = desc.nlines);
    192   CHK(node_desc.nvertices >= 1 && node_desc.nvertices < desc.nvertices);
    193 
    194   while(!sln_node_is_leaf(node)) {
    195     struct sln_node_desc node_desc_next = SLN_NODE_DESC_NULL;
    196     node = sln_node_get_child(node, 0);
    197 
    198     CHK(sln_node_get_desc(node, &node_desc_next) == RES_OK);
    199     CHK(node_desc_next.nlines >= 1);
    200     CHK(node_desc_next.nlines < node_desc.nlines);
    201     CHK(node_desc_next.nvertices >= 1);
    202     CHK(node_desc_next.nlines < node_desc.nvertices);
    203 
    204     node_desc = node_desc_next;
    205   }
    206 
    207   CHK(sln_node_get_lines_count(node) <= desc.max_nlines_per_leaf);
    208   CHK(sln_node_get_line(NULL, node, 0, &line) == RES_BAD_ARG);
    209   CHK(sln_node_get_line(tree, NULL, 0, &line) == RES_BAD_ARG);
    210   CHK(sln_node_get_line(tree, node, desc.max_nlines_per_leaf+1, &line)
    211     == RES_BAD_ARG);
    212   CHK(sln_node_get_line(tree, node, 0, NULL) == RES_BAD_ARG);
    213   CHK(sln_node_get_line(tree, node, 0, &line) == RES_OK);
    214   CHK(sln_node_get_line(tree, sln_tree_get_root(tree), 0, &line) == RES_OK);
    215 
    216   CHK(sln_node_get_mesh(NULL, node, &mesh) == RES_BAD_ARG);
    217   CHK(sln_node_get_mesh(tree, NULL, &mesh) == RES_BAD_ARG);
    218   CHK(sln_node_get_mesh(tree, node, NULL) == RES_BAD_ARG);
    219   CHK(sln_node_get_mesh(tree, node, &mesh) == RES_OK);
    220 
    221   CHK(node = sln_tree_get_root(tree));
    222   CHK(sln_node_get_mesh(tree, node, &mesh) == RES_OK);
    223 
    224   dump_line(stdout, &mesh);
    225   check_tree(tree, line_list);
    226 
    227   CHK(sln_tree_ref_get(NULL) == RES_BAD_ARG);
    228   CHK(sln_tree_ref_get(tree) == RES_OK);
    229   CHK(sln_tree_ref_put(NULL) == RES_BAD_ARG);
    230   CHK(sln_tree_ref_put(tree) == RES_OK);
    231   CHK(sln_tree_ref_put(tree) == RES_OK);
    232 
    233   tree_args.mesh_decimation_err = -1;
    234   CHK(sln_tree_create(sln, &tree_args, &tree) == RES_BAD_ARG);
    235 
    236   tree_args.mesh_decimation_err = 1e-1f;
    237   tree_args.mesh_type = SLN_MESH_TYPES_COUNT__;
    238   CHK(sln_tree_create(sln, &tree_args, &tree) == RES_BAD_ARG);
    239 
    240   tree_args.mesh_type = SLN_MESH_FIT;
    241   tree_args.line_profile = SLN_LINE_PROFILES_COUNT__;
    242   CHK(sln_tree_create(sln, &tree_args, &tree) == RES_BAD_ARG);
    243 
    244   tree_args.line_profile = SLN_LINE_PROFILE_VOIGT;
    245   CHK(sln_tree_create(sln, &tree_args, &tree) == RES_OK);
    246   CHK(sln_tree_ref_put(tree) == RES_OK);
    247 }
    248 
    249 static void
    250 check_mesh_equality(const struct sln_mesh* mesh1, const struct sln_mesh* mesh2)
    251 {
    252   size_t i;
    253   CHK(mesh1 && mesh2);
    254   CHK(mesh1->nvertices == mesh2->nvertices);
    255 
    256   FOR_EACH(i, 0, mesh1->nvertices) {
    257     CHK(mesh1->vertices[i].wavenumber == mesh2->vertices[i].wavenumber);
    258     CHK(mesh1->vertices[i].ka == mesh2->vertices[i].ka);
    259   }
    260 }
    261 
    262 static void
    263 check_node_equality
    264   (const struct sln_tree* tree1,
    265    const struct sln_tree* tree2,
    266    const struct sln_node* node1,
    267    const struct sln_node* node2)
    268 {
    269   struct sln_mesh mesh1 = SLN_MESH_NULL;
    270   struct sln_mesh mesh2 = SLN_MESH_NULL;
    271   size_t iline, nlines;
    272 
    273   CHK(node1 && node2);
    274   CHK(sln_node_is_leaf(node1) == sln_node_is_leaf(node2));
    275   CHK(sln_node_get_lines_count(node1) == sln_node_get_lines_count(node2));
    276   nlines = sln_node_get_lines_count(node1);
    277 
    278   FOR_EACH(iline, 0, nlines) {
    279     struct shtr_line line1 = SHTR_LINE_NULL;
    280     struct shtr_line line2 = SHTR_LINE_NULL;
    281     CHK(sln_node_get_line(tree1, node1, iline, &line1) == RES_OK);
    282     CHK(sln_node_get_line(tree2, node2, iline, &line2) == RES_OK);
    283     CHK(shtr_line_eq(&line1, &line2));
    284   }
    285 
    286   CHK(sln_node_get_mesh(tree1, node1, &mesh1) == RES_OK);
    287   CHK(sln_node_get_mesh(tree2, node2, &mesh2) == RES_OK);
    288   check_mesh_equality(&mesh1, &mesh2);
    289 }
    290 
    291 static void
    292 check_tree_equality
    293   (const struct sln_tree* tree1,
    294    const struct sln_tree* tree2)
    295 {
    296   const struct sln_node* stack[128] = {NULL};
    297   int istack = 0;
    298 
    299   struct sln_tree_desc desc1 = SLN_TREE_DESC_NULL;
    300   struct sln_tree_desc desc2 = SLN_TREE_DESC_NULL;
    301   const struct sln_node* node1 = NULL;
    302   const struct sln_node* node2 = NULL;
    303 
    304   CHK(sln_tree_get_desc(tree1, &desc1) == RES_OK);
    305   CHK(sln_tree_get_desc(tree2, &desc2) == RES_OK);
    306   CHK(desc1.max_nlines_per_leaf == desc2.max_nlines_per_leaf);
    307   CHK(desc1.mesh_decimation_err == desc2.mesh_decimation_err);
    308   CHK(desc1.line_profile == desc2.line_profile);
    309 
    310   stack[istack++] = NULL;
    311   stack[istack++] = NULL;
    312 
    313   node1 = sln_tree_get_root(tree1);
    314   node2 = sln_tree_get_root(tree2);
    315 
    316   while(node1 || node2) {
    317     CHK((!node1 && !node2) || (node1 && node2));
    318     check_node_equality(tree1, tree2, node1, node2);
    319 
    320     if(sln_node_is_leaf(node1)) {
    321       node2 = stack[--istack];
    322       node1 = stack[--istack];
    323     } else {
    324       stack[istack++] = sln_node_get_child(node1, 1);
    325       stack[istack++] = sln_node_get_child(node2, 1);
    326       node1 = sln_node_get_child(node1, 0);
    327       node2 = sln_node_get_child(node2, 0);
    328     }
    329   }
    330 }
    331 
    332 static void
    333 test_tree_serialization
    334   (struct sln_device* sln,
    335    const struct sln_tree_create_args* tree_args,
    336    struct shtr* shtr)
    337 {
    338   struct sln_tree_write_args wargs = SLN_TREE_WRITE_ARGS_NULL;
    339   struct sln_tree_read_args rargs = SLN_TREE_READ_ARGS_NULL;
    340   struct sln_tree* tree1 = NULL;
    341   struct sln_tree* tree2 = NULL;
    342 
    343   const char* filename = "tree.sln";
    344   FILE* fp = NULL;
    345 
    346   CHK(sln_tree_create(sln, tree_args, &tree1) == RES_OK);
    347 
    348   CHK(fp = fopen(filename, "w+"));
    349 
    350   wargs.file = fp;
    351   CHK(sln_tree_write(NULL, &wargs) == RES_BAD_ARG);
    352   CHK(sln_tree_write(tree1, NULL) == RES_BAD_ARG);
    353   wargs.file = NULL;
    354   CHK(sln_tree_write(tree1, &wargs) == RES_BAD_ARG);
    355   wargs.file = fp;
    356   CHK(sln_tree_write(tree1, &wargs) == RES_OK);
    357   rewind(fp);
    358 
    359   rargs.shtr = shtr;
    360   rargs.file = fp;
    361   CHK(sln_tree_read(NULL, &rargs, &tree2) == RES_BAD_ARG);
    362   CHK(sln_tree_read(sln, NULL, &tree2) == RES_BAD_ARG);
    363   rargs.shtr = NULL;
    364   CHK(sln_tree_read(sln, &rargs, &tree2) == RES_BAD_ARG);
    365   rargs.shtr = shtr;
    366   rargs.file = NULL;
    367   CHK(sln_tree_read(sln, &rargs, &tree2) == RES_BAD_ARG);
    368   rargs.file = fp;
    369   CHK(sln_tree_read(sln, &rargs, NULL) == RES_BAD_ARG);
    370   CHK(sln_tree_read(sln, &rargs, &tree2) == RES_OK);
    371   fclose(fp);
    372 
    373   check_tree_equality(tree1, tree2);
    374   CHK(sln_tree_ref_put(tree2) == RES_OK);
    375 
    376   wargs.file = NULL;
    377   wargs.filename = filename;
    378   CHK(sln_tree_write(tree1, &wargs) == RES_OK);
    379 
    380   rargs.file = NULL;
    381   rargs.filename = "nop";
    382   CHK(sln_tree_read(sln, &rargs, &tree2) == RES_IO_ERR);
    383   rargs.filename = filename;
    384   CHK(sln_tree_read(sln, &rargs, &tree2) == RES_OK);
    385 
    386   check_tree_equality(tree1, tree2);
    387 
    388   CHK(sln_tree_ref_put(tree2) == RES_OK);
    389   CHK(sln_tree_ref_put(tree1) == RES_OK);
    390 }
    391 
    392 /*******************************************************************************
    393  * Test function
    394  ******************************************************************************/
    395 int
    396 main(int argc, char** argv)
    397 {
    398   struct sln_device_create_args dev_args = SLN_DEVICE_CREATE_ARGS_DEFAULT;
    399   struct sln_tree_create_args tree_args = SLN_TREE_CREATE_ARGS_DEFAULT;
    400   struct sln_device* sln = NULL;
    401 
    402   struct shtr_create_args shtr_args = SHTR_CREATE_ARGS_DEFAULT;
    403   struct shtr* shtr = NULL;
    404   struct shtr_line_list_load_args line_load_args = SHTR_LINE_LIST_LOAD_ARGS_NULL;
    405   struct shtr_line_list* line_list = NULL;
    406   struct shtr_isotope_metadata* metadata = NULL;
    407 
    408   FILE* fp_lines = NULL;
    409   FILE* fp_mdata = NULL;
    410   (void)argc, (void)argv;
    411 
    412   /* Generate the file of the isotope metadata */
    413   CHK(fp_mdata = tmpfile());
    414   fprintf(fp_mdata, "Molecule # Iso Abundance Q(296K) gj Molar Mass(g)\n");
    415   write_shtr_molecule(fp_mdata, &g_H2O);
    416   write_shtr_molecule(fp_mdata, &g_CO2);
    417   write_shtr_molecule(fp_mdata, &g_O3);
    418   rewind(fp_mdata);
    419 
    420   /* Generate the file of lines */
    421   CHK(fp_lines = tmpfile());
    422   write_shtr_lines(fp_lines, g_lines, g_nlines);
    423   rewind(fp_lines);
    424 
    425   /* Load the isotope metadata and the lines */
    426   shtr_args.verbose = 1;
    427   CHK(shtr_create(&shtr_args, &shtr) == RES_OK);
    428   CHK(shtr_isotope_metadata_load_stream(shtr, fp_mdata, NULL, &metadata) == RES_OK);
    429 
    430   line_load_args.filename = "stream";
    431   line_load_args.file = fp_lines;
    432   CHK(shtr_line_list_load(shtr, &line_load_args, &line_list) == RES_OK);
    433 
    434   CHK(fclose(fp_lines) == 0);
    435   CHK(fclose(fp_mdata) == 0);
    436 
    437   dev_args.verbose = 1;
    438   CHK(sln_device_create(&dev_args, &sln) == RES_OK);
    439 
    440   /* Create the mixture */
    441   tree_args.metadata = metadata;
    442   tree_args.lines = line_list;
    443   tree_args.molecules[SHTR_H2O].concentration = 1.0/3.0;
    444   tree_args.molecules[SHTR_H2O].cutoff = 25;
    445   tree_args.molecules[SHTR_CO2].concentration = 1.0/3.0;
    446   tree_args.molecules[SHTR_CO2].cutoff = 50;
    447   tree_args.molecules[SHTR_O3 ].concentration = 1.0/3.0;
    448   tree_args.molecules[SHTR_O3 ].cutoff = 25;
    449   tree_args.pressure = 1;
    450   tree_args.temperature = 296;
    451 
    452   test_tree(sln, &tree_args, line_list);
    453   test_tree_serialization(sln, &tree_args, shtr);
    454 
    455   CHK(sln_device_ref_put(sln) == RES_OK);
    456   CHK(shtr_ref_put(shtr) == RES_OK);
    457   CHK(shtr_line_list_ref_put(line_list) == RES_OK);
    458   CHK(shtr_isotope_metadata_ref_put(metadata) == RES_OK);
    459   CHK(mem_allocated_size() == 0);
    460   return 0;
    461 }