Exemplo n.º 1
0
/*
 * Run the bash script and read its output, which consists of variables needed to configure
 * postgres-xc cluster in pgxc_ctl.
 *
 * Be careful that pgxc_ctl changes its working directory to pgxc home directory,
 * typically $HOME/pgxc_ctl, which can be changed with pgxc_ctl options.
 * See pgxc_ctl.c or pgxc_ctl document for details.
 */
void read_config_file(char *path, char *conf)
{
	FILE *vars;
	char cmd[1024];

	if (conf)
		sprintf(cmd, "bash %s/pgxc_ctl_bash --configure %s print_values", path, conf);
	else
		sprintf(cmd, "bash %s/pgxc_ctl_bash print_values", path);
	vars = popen(cmd, "r");
	read_vars(vars);
	fclose(vars);
}
Exemplo n.º 2
0
ifstream* CovOptimData::read(const char* filename, CovOptimData& cov, std::stack<unsigned int>& format_id, std::stack<unsigned int>& format_version) {

	ifstream* f = CovList::read(filename, cov, format_id, format_version);

	if (format_id.empty() || format_id.top()!=subformat_number || format_version.top()!=FORMAT_VERSION) {
		cov.data->_optim_optimizer_status = (unsigned int) Optimizer::SUCCESS;
		cov.data->_optim_is_extended_space = false;
		cov.data->_optim_uplo = NEG_INFINITY;
		cov.data->_optim_loup = POS_INFINITY;
		cov.data->_optim_loup_point.resize((int) cov.n);
		cov.data->_optim_loup_point = IntervalVector::empty(cov.n);
		cov.data->_optim_time = -1;
		cov.data->_optim_nb_cells = 0;
	}
	else {
		format_id.pop();
		format_version.pop();

		read_vars(*f, cov.n, cov.data->_optim_var_names);

		unsigned int status = read_pos_int(*f);

		switch (status) {
		case 0: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::SUCCESS;           break;
		case 1: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::INFEASIBLE;        break;
		case 2: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::NO_FEASIBLE_FOUND; break;
		case 3: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::UNBOUNDED_OBJ;     break;
		case 4: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::TIME_OUT;     		break;
		case 5: cov.data->_optim_optimizer_status = (unsigned int) Optimizer::UNREACHED_PREC;    break;
		default: ibex_error("[CovOptimData]: invalid optimizer status.");
		}

		cov.data->_optim_is_extended_space = (bool) read_pos_int(*f);
		cov.data->_optim_uplo              = read_double(*f);
		cov.data->_optim_uplo_of_epsboxes  = read_double(*f);
		cov.data->_optim_loup              = read_double(*f);

		unsigned int loup_found   = read_pos_int(*f);
		unsigned int nb_var   = cov.is_extended_space() ? cov.n-1 : cov.n;
		cov.data->_optim_loup_point.resize((int) nb_var);
		// TODO: we assume here that the goal var is n-1
		cov.data->_optim_loup_point 		  = loup_found==1? cov[0].subvector(0,nb_var-1) : IntervalVector::empty(nb_var);

		cov.data->_optim_time              = read_double(*f);
		cov.data->_optim_nb_cells          = read_pos_int(*f);
	}

	return f;
}
Exemplo n.º 3
0
static void read_configuration(void)
{
	FILE *conf;
	char cmd[MAXPATH+1];

	if (pgxc_ctl_config_path[0])
		snprintf(cmd, MAXPATH, "%s --home %s --configuration %s", 
				 pgxc_ctl_bash_path, pgxc_ctl_home, pgxc_ctl_config_path);
	else
		snprintf(cmd, MAXPATH, "%s --home %s", pgxc_ctl_bash_path, pgxc_ctl_home);

	elog(NOTICE, "Reading configuration using %s\n", cmd);
	conf = popen(cmd, "r");
	if (conf == NULL)
	{
		elog(ERROR, "ERROR: Cannot execute %s, %s", cmd, strerror(errno));
		return;
	}
	read_vars(conf);
	pclose(conf);
	uninstall_pgxc_ctl_bash(pgxc_ctl_bash_path);
	elog(INFO, "Finished to read configuration.\n");
}
Exemplo n.º 4
0
void NemSpread<T,INT>::read_restart_data ()

/* Function which reads the restart variable data from the EXODUS II
 * database which contains the results information. Then distribute
 * it to the processors, and write it to the parallel exodus files.
 *
 *----------------------------------------------------------------------------
 *
 * Functions called:
 *
 * read_vars -- function which reads the variable values from the restart
 *              file, and then distributes them to the processors
 *
 * write_var_timestep -- function which writes out the variables for a
 *                       to a parallel ExodusII file.
 *
 *----------------------------------------------------------------------------
 */

{
    const char  *yo="read_restart_data";

    /* need to get the element block ids and counts */
    std::vector<INT> eb_ids_global(globals.Num_Elem_Blk);
    std::vector<INT> eb_cnts_global(globals.Num_Elem_Blk);
    std::vector<INT> ss_ids_global(globals.Num_Side_Set);
    std::vector<INT> ss_cnts_global(globals.Num_Side_Set);
    std::vector<INT> ns_ids_global(globals.Num_Node_Set);
    std::vector<INT> ns_cnts_global(globals.Num_Node_Set);

    INT ***eb_map_ptr = NULL, **eb_cnts_local = NULL;
    int    exoid=0, *par_exoid = NULL;

    float  vers;
    char   cTemp[512];

    /* computing precision should be the same as the database precision
     *
     * EXCEPTION: if the io_ws is smaller than the machine precision,
     * ie - database with io_ws == 4 on a Cray (sizeof(float) == 8),
     * then the cpu_ws must be the machine precision.
     */
    int cpu_ws;
    if (io_ws < (int)sizeof(float)) cpu_ws = sizeof(float);
    else                            cpu_ws = io_ws;

    /* Open the ExodusII file */
    {
        cpu_ws = io_ws;
        int mode = EX_READ | int64api;
        if ((exoid=ex_open(Exo_Res_File, mode, &cpu_ws, &io_ws, &vers)) < 0) {
            fprintf(stderr, "%s: Could not open file %s for restart info\n",
                    yo, Exo_Res_File);
            exit(1);
        }
    }

    /* allocate space for the global variables */
    Restart_Info.Glob_Vals.resize(Restart_Info.NVar_Glob);

    if (Restart_Info.NVar_Elem > 0 ) {

        /* allocate storage space */
        Restart_Info.Elem_Vals.resize(Proc_Info[2]);

        /* now allocate storage for the values */
        for (int iproc = 0; iproc <Proc_Info[2]; iproc++) {
            size_t array_size = Restart_Info.NVar_Elem *
                                (globals.Num_Internal_Elems[iproc] + globals.Num_Border_Elems[iproc]);
            Restart_Info.Elem_Vals[iproc].resize(array_size);
        }

        /*
         * at this point, I need to broadcast the global element block ids
         * and counts to the processors. I know that this is redundant data
         * since they will all receive this information in read_mesh, but
         * the variables which contain that information are static in
         * el_exoII_io.c, and cannot be used here. So, take a second and
         * broadcast all of this out.
         *
         * I want to do this here so that it is done only once no matter
         * how many time steps are retrieved
         */

        /* Get the Element Block IDs from the input file */
        if (ex_get_ids (exoid, EX_ELEM_BLOCK, TOPTR(eb_ids_global)) < 0)
        {
            fprintf(stderr, "%s: unable to get element block IDs", yo);
            exit(1);
        }

        /* Get the count of elements in each element block */
        for (int cnt = 0; cnt < globals.Num_Elem_Blk; cnt++) {
            if (ex_get_block(exoid, EX_ELEM_BLOCK, eb_ids_global[cnt], cTemp,
                             &(eb_cnts_global[cnt]), NULL, NULL, NULL, NULL) < 0) {
                fprintf(stderr, "%s: unable to get element count for block id "ST_ZU"",
                        yo, (size_t)eb_ids_global[cnt]);
                exit(1);
            }
        }

        /*
         * in order to speed up finding matches in the global element
         * number map, set up an array of pointers to the start of
         * each element block's global element number map. That way
         * only entries for the current element block have to be searched
         */
        eb_map_ptr = (INT ***) array_alloc (__FILE__, __LINE__, 2,Proc_Info[2],
                                            globals.Num_Elem_Blk, sizeof(INT *));
        if (!eb_map_ptr) {
            fprintf(stderr, "[%s]: ERROR, insufficient memory!\n", yo);
            exit(1);
        }
        eb_cnts_local = (INT **) array_alloc (__FILE__, __LINE__, 2,Proc_Info[2],
                                              globals.Num_Elem_Blk, sizeof(INT));
        if (!eb_cnts_local) {
            fprintf(stderr, "[%s]: ERROR, insufficient memory!\n", yo);
            exit(1);
        }

        /*
         * for now, assume that element blocks have been
         * stored in the same order as the global blocks
         */
        for (int iproc = 0; iproc <Proc_Info[2]; iproc++) {
            int    ifound = 0;
            size_t offset = 0;
            int    ilocal;
            for (int cnt = 0; cnt < globals.Num_Elem_Blk; cnt++) {
                for (ilocal = ifound; ilocal < globals.Proc_Num_Elem_Blk[iproc]; ilocal++) {
                    if (globals.Proc_Elem_Blk_Ids[iproc][ilocal] == eb_ids_global[cnt])
                        break;
                }

                if (ilocal < globals.Proc_Num_Elem_Blk[iproc]) {
                    eb_map_ptr[iproc][cnt] = &globals.GElems[iproc][offset];
                    eb_cnts_local[iproc][cnt] = globals.Proc_Num_Elem_In_Blk[iproc][ilocal];
                    offset += globals.Proc_Num_Elem_In_Blk[iproc][ilocal];
                    ifound = ilocal; /* don't search the same part of the list over */
                }
                else {
                    eb_map_ptr[iproc][cnt] = NULL;
                    eb_cnts_local[iproc][cnt] = 0;
                }
            }
        }

    } /* End: "if (Restart_Info.NVar_Elem > 0 )" */

    if (Restart_Info.NVar_Node > 0 ) {
        /* allocate storage space */
        Restart_Info.Node_Vals.resize(Proc_Info[2]);

        /* now allocate storage for the values */
        for (int iproc = 0; iproc <Proc_Info[2]; iproc++) {
            size_t array_size = Restart_Info.NVar_Node * (globals.Num_Internal_Nodes[iproc] +
                                globals.Num_Border_Nodes[iproc] + globals.Num_External_Nodes[iproc]);
            Restart_Info.Node_Vals[iproc].resize(array_size);
        }
    }

    if (Restart_Info.NVar_Sset > 0 ) {

        /* allocate storage space */
        Restart_Info.Sset_Vals.resize(Proc_Info[2]);

        /* now allocate storage for the values */
        for (int iproc = 0; iproc <Proc_Info[2]; iproc++) {
            size_t array_size = Restart_Info.NVar_Sset * globals.Proc_SS_Elem_List_Length[iproc];

            Restart_Info.Sset_Vals[iproc].resize(array_size);
        }

        /*
         * at this point, I need to broadcast the ids and counts to the
         * processors. I know that this is redundant data since they will
         * all receive this information in read_mesh, but the variables
         * which contain that information are static in el_exoII_io.c, and
         * cannot be used here. So, take a second and broadcast all of
         * this out.
         *
         * I want to do this here so that it is done only once no matter
         * how many time steps are retrieved
         */

        /* Get the Sideset IDs from the input file */
        if (ex_get_ids (exoid, EX_SIDE_SET, TOPTR(ss_ids_global)) < 0) {
            fprintf(stderr, "%s: unable to get sideset IDs", yo);
            exit(1);
        }

        /* Get the count of elements in each sideset */
        for (int cnt = 0; cnt < globals.Num_Side_Set; cnt++) {
            if (ex_get_set_param(exoid, EX_SIDE_SET,
                                 ss_ids_global[cnt],
                                 &(ss_cnts_global[cnt]), NULL) < 0) {
                fprintf(stderr, "%s: unable to get element count for sideset id "ST_ZU"",
                        yo, (size_t)ss_ids_global[cnt]);
                exit(1);
            }
        }
    } /* End: "if (Restart_Info.NVar_Sset > 0 )" */


    if (Restart_Info.NVar_Nset > 0 ) {

        /* allocate storage space */
        Restart_Info.Nset_Vals.resize(Proc_Info[2]);

        /* now allocate storage for the values */
        for (int iproc = 0; iproc <Proc_Info[2]; iproc++) {
            size_t array_size = Restart_Info.NVar_Nset * globals.Proc_NS_List_Length[iproc];
            Restart_Info.Nset_Vals[iproc].resize(array_size);
        }

        /*
         * at this point, I need to broadcast the ids and counts to the
         * processors. I know that this is redundant data since they will
         * all receive this information in read_mesh, but the variables
         * which contain that information are static in el_exoII_io.c, and
         * cannot be used here. So, take a second and broadcast all of
         * this out.
         *
         * I want to do this here so that it is done only once no matter
         * how many time steps are retrieved
         */

        /* Get the Nodeset IDs from the input file */
        if (ex_get_ids (exoid, EX_NODE_SET, TOPTR(ns_ids_global)) < 0) {
            fprintf(stderr, "%s: unable to get nodeset IDs", yo);
            exit(1);
        }

        /* Get the count of elements in each nodeset */
        for (int cnt = 0; cnt < globals.Num_Node_Set; cnt++) {
            if (ex_get_set_param(exoid, EX_NODE_SET,
                                 ns_ids_global[cnt],
                                 &(ns_cnts_global[cnt]), NULL) < 0) {
                fprintf(stderr, "%s: unable to get element count for nodeset id "ST_ZU"",
                        yo, (size_t)ns_ids_global[cnt]);
                exit(1);
            }
        }
    } /* End: "if (Restart_Info.NVar_Nset > 0 )" */


    /*
     * NOTE: A possible place to speed this up would be to
     * get the global node and element lists here, and broadcast
     * them out only once.
     */

    par_exoid = (int*)malloc(Proc_Info[2] * sizeof(int));
    if(!par_exoid) {
        fprintf(stderr, "[%s]: ERROR, insufficient memory!\n",
                yo);
        exit(1);
    }

    /* See if any '/' in the name.  IF present, isolate the basename of the file */
    if (strrchr(PIO_Info.Scalar_LB_File_Name, '/') != NULL) {
        /* There is a path separator.  Get the portion after the
         * separator
         */
        strcpy(cTemp, strrchr(PIO_Info.Scalar_LB_File_Name, '/')+1);
    } else {
        /* No separator; this is already just the basename... */
        strcpy(cTemp, PIO_Info.Scalar_LB_File_Name);
    }

    if (strlen(PIO_Info.Exo_Extension) == 0)
        add_fname_ext(cTemp, ".par");
    else
        add_fname_ext(cTemp, PIO_Info.Exo_Extension);

    int open_file_count = get_free_descriptor_count();
    if (open_file_count >Proc_Info[5]) {
        printf("All output files opened simultaneously.\n");
        for (int iproc=Proc_Info[4]; iproc <Proc_Info[4]+Proc_Info[5]; iproc++) {

            gen_par_filename(cTemp, Par_Nem_File_Name, Proc_Ids[iproc],
                             Proc_Info[0]);

            /* Open the parallel Exodus II file for writing */
            cpu_ws = io_ws;
            int mode = EX_WRITE | int64api | int64db;
            if ((par_exoid[iproc]=ex_open(Par_Nem_File_Name, mode, &cpu_ws,
                                          &io_ws, &vers)) < 0) {
                fprintf(stderr,"[%d] %s Could not open parallel Exodus II file: %s\n",
                        iproc, yo, Par_Nem_File_Name);
                exit(1);
            }
        }
    } else {
        printf("All output files opened one-at-a-time.\n");
    }

    /* Now loop over the number of time steps */
    for (int time_idx = 0; time_idx < Restart_Info.Num_Times; time_idx++) {

        double start_t = second ();

        /* read and distribute the variables for this time step */
        if (read_vars(exoid, Restart_Info.Time_Idx[time_idx],
                      TOPTR(eb_ids_global), TOPTR(eb_cnts_global), eb_map_ptr,
                      eb_cnts_local,
                      TOPTR(ss_ids_global), TOPTR(ss_cnts_global),
                      TOPTR(ns_ids_global), TOPTR(ns_cnts_global)) < 0) {
            fprintf(stderr, "%s: Error occured while reading variables\n",
                    yo);
            exit(1);
        }
        double end_t   = second () - start_t;
        printf ("\tTime to read  vars for timestep %d: %f (sec.)\n", (time_idx+1), end_t);

        start_t = second ();
        for (int iproc=Proc_Info[4]; iproc <Proc_Info[4]+Proc_Info[5]; iproc++) {

            if (open_file_count <Proc_Info[5]) {
                gen_par_filename(cTemp, Par_Nem_File_Name, Proc_Ids[iproc],
                                 Proc_Info[0]);

                /* Open the parallel Exodus II file for writing */
                cpu_ws = io_ws;
                int mode = EX_WRITE | int64api | int64db;
                if ((par_exoid[iproc]=ex_open(Par_Nem_File_Name, mode, &cpu_ws,
                                              &io_ws, &vers)) < 0) {
                    fprintf(stderr,"[%d] %s Could not open parallel Exodus II file: %s\n",
                            iproc, yo, Par_Nem_File_Name);
                    exit(1);
                }
            }

            /*
             * Write out the variable data for the time steps in this
             * block to each parallel file.
             */
            write_var_timestep(par_exoid[iproc], iproc, (time_idx+1),
                               TOPTR(eb_ids_global), TOPTR(ss_ids_global), TOPTR(ns_ids_global));

            if (iproc%10 == 0 || iproc ==Proc_Info[2]-1)
                printf("%d", iproc);
            else
                printf(".");

            if (open_file_count <Proc_Info[5]) {
                if (ex_close(par_exoid[iproc]) == -1) {
                    fprintf(stderr, "[%d] %s Could not close the parallel Exodus II file.\n",
                            iproc, yo);
                    exit(1);
                }
            }
        } /* End "for (iproc=0; iproc <Proc_Info[2]; iproc++)" */

        end_t   = second () - start_t;
        printf ("\n\tTime to write vars for timestep %d: %f (sec.)\n", (time_idx+1), end_t);

    }
    if (Restart_Info.NVar_Elem > 0 ) {
        safe_free((void **) &eb_map_ptr);
        safe_free((void **) &eb_cnts_local);
    }

    /* Close the restart exodus II file */
    if (ex_close(exoid) == -1) {
        fprintf(stderr, "%sCould not close the restart Exodus II file\n",
                yo);
        exit(1);
    }

    if (open_file_count >Proc_Info[5]) {
        for (int iproc=Proc_Info[4]; iproc <Proc_Info[4]+Proc_Info[5]; iproc++) {
            /* Close the parallel exodus II file */
            if (ex_close(par_exoid[iproc]) == -1) {
                fprintf(stderr, "[%d] %s Could not close the parallel Exodus II file.\n",
                        iproc, yo);
                exit(1);
            }
        }
    }
    if (par_exoid != NULL) {
        free(par_exoid);
        par_exoid = NULL;
    }
}
Exemplo n.º 5
0
template <typename INT> void ExoII_Read<INT>::Get_Init_Data()
{
  SMART_ASSERT(Check_State());
  SMART_ASSERT(file_id >= 0);

  // Determine max size of entity and variable names on the database
  int name_length = ex_inquire_int(file_id, EX_INQ_DB_MAX_USED_NAME_LENGTH);
  ex_set_max_name_length(file_id, name_length);

  ex_init_params info;
  info.title[0] = '\0';

  int err = ex_get_init_ext(file_id, &info);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get init data!"
              << " Error number = " << err << ".  Aborting..." << '\n';
    exit(1);
  }

  dimension       = info.num_dim;
  num_nodes       = info.num_nodes;
  num_elmts       = info.num_elem;
  num_elmt_blocks = info.num_elem_blk;
  num_node_sets   = info.num_node_sets;
  num_side_sets   = info.num_side_sets;
  title           = info.title;

  if (err > 0 && !interface.quiet_flag)
    std::cout << "EXODIFF WARNING: was issued, number = " << err << '\n';
  if (dimension < 1 || dimension > 3 || num_elmt_blocks < 0 || num_node_sets < 0 ||
      num_side_sets < 0) {
    std::cout << "EXODIFF ERROR: Init data appears corrupt:" << '\n'
              << "         dimension = " << dimension << '\n'
              << "         num_nodes = " << num_nodes << '\n'
              << "         num_elmts = " << num_elmts << '\n'
              << "         num_elmt_blocks = " << num_elmt_blocks << '\n'
              << "         num_node_sets = " << num_node_sets << '\n'
              << "         num_side_sets = " << num_side_sets << '\n'
              << " ... Aborting..." << '\n';
    exit(1);
  }

  int num_qa   = ex_inquire_int(file_id, EX_INQ_QA);
  int num_info = ex_inquire_int(file_id, EX_INQ_INFO);

  if (num_qa < 0 || num_info < 0) {
    std::cout << "EXODIFF ERROR: inquire data appears corrupt:" << '\n'
              << "         num_qa = " << num_qa << '\n'
              << "         num_info = " << num_info << '\n'
              << " ... Aborting..." << '\n';
    exit(1);
  }

  //                   Coordinate Names...

  char **coords = get_name_array(3, name_length);
  err           = ex_get_coord_names(file_id, coords);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get coordinate"
              << " names!  Aborting..." << '\n';
    exit(1);
  }

  coord_names.clear();
  for (size_t i = 0; i < dimension; ++i) {
    coord_names.push_back(coords[i]);
  }
  free_name_array(coords, 3);

  //                 Element Block Data...

  if (eblocks)
    delete[] eblocks;
  eblocks = nullptr;
  if (num_elmt_blocks > 0) {
    eblocks = new Exo_Block<INT>[num_elmt_blocks];
    SMART_ASSERT(eblocks != nullptr);
    std::vector<INT> ids(num_elmt_blocks);

    err = ex_get_ids(file_id, EX_ELEM_BLOCK, TOPTR(ids));

    if (err < 0) {
      std::cout << "EXODIFF ERROR: Failed to get element"
                << " block ids!  Aborting..." << '\n';
      exit(1);
    }

    size_t e_count = 0;
    for (size_t b = 0; b < num_elmt_blocks; ++b) {
      if (ids[b] <= EX_INVALID_ID) {
        std::cout << "EXODIFF  WARNING:  Element block Id "
                  << "for block index " << b << " is " << ids[b]
                  << " which is negative. This was returned by call to ex_get_elem_blk_ids()."
                  << '\n';
      }

      eblocks[b].initialize(file_id, ids[b]);
      e_count += eblocks[b].Size();
    }

    if (e_count != num_elmts && !interface.quiet_flag) {
      std::cout << "EXODIFF WARNING: Total number of elements " << num_elmts
                << " does not equal the sum of the number of elements "
                << "in each block " << e_count << '\n';
    }

    // Gather the attribute names (even though not all attributes are on all blocks)
    std::set<std::string> names;
    for (size_t b = 0; b < num_elmt_blocks; ++b) {
      for (int a = 0; a < eblocks[b].attr_count(); a++) {
        names.insert(eblocks[b].Get_Attribute_Name(a));
      }
    }
    elmt_atts.resize(names.size());
    std::copy(names.begin(), names.end(), elmt_atts.begin());
  }

  //                     Node & Side sets...

  if (nsets)
    delete[] nsets;
  nsets = nullptr;
  if (num_node_sets > 0) {
    nsets = new Node_Set<INT>[num_node_sets];
    SMART_ASSERT(nsets != nullptr);
    std::vector<INT> ids(num_node_sets);

    err = ex_get_ids(file_id, EX_NODE_SET, TOPTR(ids));

    if (err < 0) {
      std::cout << "EXODIFF ERROR: Failed to get "
                << "nodeset ids!  Aborting..." << '\n';
      exit(1);
    }

    for (size_t nset = 0; nset < num_node_sets; ++nset) {
      if (ids[nset] <= EX_INVALID_ID) {
        std::cout << "EXODIFF  WARNING: Nodeset Id "
                  << "for nodeset index " << nset << " is " << ids[nset]
                  << " which is negative.  This was returned by call to ex_get_ids()." << '\n';
      }

      nsets[nset].initialize(file_id, ids[nset]);
    }
  }

  if (ssets)
    delete[] ssets;
  ssets = nullptr;
  if (num_side_sets) {
    ssets = new Side_Set<INT>[num_side_sets];
    SMART_ASSERT(ssets != nullptr);
    std::vector<INT> ids(num_side_sets);

    err = ex_get_ids(file_id, EX_SIDE_SET, TOPTR(ids));

    if (err < 0) {
      std::cout << "EXODIFF ERROR: Failed to get "
                << "sideset ids!  Aborting..." << '\n';
      exit(1);
    }

    for (size_t sset = 0; sset < num_side_sets; ++sset) {
      if (ids[sset] <= EX_INVALID_ID) {
        std::cout << "EXODIFF  WARNING:  Sideset Id "
                  << "for sideset index " << sset << " is " << ids[sset]
                  << " which is negative. This was returned by call to ex_get_ids()." << '\n';
      }
      ssets[sset].initialize(file_id, ids[sset]);
    }
  }

  //  **************  RESULTS info  ***************  //

  int num_global_vars, num_nodal_vars, num_elmt_vars, num_ns_vars, num_ss_vars;

  err = ex_get_variable_param(file_id, EX_GLOBAL, &num_global_vars);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get number of"
              << " global variables!  Aborting..." << '\n';
    exit(1);
  }

  err = ex_get_variable_param(file_id, EX_NODAL, &num_nodal_vars);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get number of"
              << " nodal variables!  Aborting..." << '\n';
    exit(1);
  }

  err = ex_get_variable_param(file_id, EX_ELEM_BLOCK, &num_elmt_vars);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get number of"
              << " element variables!  Aborting..." << '\n';
    exit(1);
  }

  err = ex_get_variable_param(file_id, EX_NODE_SET, &num_ns_vars);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get number of"
              << " nodeset variables!  Aborting..." << '\n';
    exit(1);
  }

  err = ex_get_variable_param(file_id, EX_SIDE_SET, &num_ss_vars);
  if (err < 0) {
    std::cout << "EXODIFF ERROR: Failed to get number of"
              << " sideset variables!  Aborting..." << '\n';
    exit(1);
  }

  if (num_global_vars < 0 || num_nodal_vars < 0 || num_elmt_vars < 0 || num_ns_vars < 0 ||
      num_ss_vars < 0) {
    std::cout << "EXODIFF ERROR: Data appears corrupt for"
              << " number of variables !" << '\n'
              << "\tnum global vars  = " << num_global_vars << '\n'
              << "\tnum nodal vars   = " << num_nodal_vars << '\n'
              << "\tnum element vars = " << num_elmt_vars << '\n'
              << " ... Aborting..." << '\n';
    exit(1);
  }

  read_vars(file_id, EX_GLOBAL, "Global", num_global_vars, global_vars);
  read_vars(file_id, EX_NODAL, "Nodal", num_nodal_vars, nodal_vars);
  read_vars(file_id, EX_ELEM_BLOCK, "Element", num_elmt_vars, elmt_vars);
  read_vars(file_id, EX_NODE_SET, "Nodeset", num_ns_vars, ns_vars);
  read_vars(file_id, EX_SIDE_SET, "Sideset", num_ss_vars, ss_vars);

  // Times:
  num_times = ex_inquire_int(file_id, EX_INQ_TIME);
  if (num_times < 0) {
    std::cout << "EXODIFF ERROR: Number of time steps came"
              << " back negative (" << num_times << ")!  Aborting..." << '\n';
    exit(1);
  }

  if ((num_global_vars > 0 || num_nodal_vars > 0 || num_elmt_vars > 0 || num_ns_vars > 0 ||
       num_ss_vars > 0) &&
      num_times == 0) {
    std::cout << "EXODIFF Consistency error -- The database contains transient variables, but no "
                 "timesteps!"
              << '\n';
    exit(1);
  }

  if (num_times) {
    times = new double[num_times];
    SMART_ASSERT(times != nullptr);
    err = ex_get_all_times(file_id, times);
  }

  if (num_nodal_vars) {
    if (num_times == 0) {
      std::cout << "EXODIFF Consistency error--The database contains " << num_nodal_vars
                << " nodal variables, but there are no time steps defined." << '\n';
    }
    if (num_times) {
      results = new double *[num_nodal_vars];
      for (int i   = 0; i < num_nodal_vars; ++i)
        results[i] = nullptr;
    }
  }

} // End of EXODIFF