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262 lines
7.6 KiB
262 lines
7.6 KiB
/*
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* Copyright(C) 1999-2020 National Technology & Engineering Solutions
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* of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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* NTESS, the U.S. Government retains certain rights in this software.
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*
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* See packages/seacas/LICENSE for details
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*/
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/*****************************************************************************
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EXPERIMENTAL -- DO NOT USE THIS CAPABILITY/CONCEPT FOR PRODUCTION WORK
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This is a test of an experimental capability to output only the transient
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data to an exodus file. Eventually there will be a link between the
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transient file and the file containing the mesh data. For now, we are
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only writing the transient data and verifying that the file has sufficient
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data to be understood by some of the seacas utilities.
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One of the ultimate goals is to make per-timestep output of results
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data faster since do not need the mesh definition bulk data
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(coordinates, connectivty, ...) for each step
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EXPERIMENTAL -- DO NOT USE THIS CAPABILITY/CONCEPT FOR PRODUCTION WORK
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*****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "exodusII.h"
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int main(int argc, char **argv)
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{
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int exoid, num_dim, num_nodes, num_elem, num_elem_blk;
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int num_node_sets, num_side_sets, error;
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int i, j, k, m;
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int num_glo_vars, num_nod_vars, num_ele_vars;
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int *truth_tab;
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int whole_time_step, num_time_steps;
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int CPU_word_size, IO_word_size;
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float *glob_var_vals, *nodal_var_vals, *elem_var_vals;
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float time_value;
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char *var_names[3];
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char *title = "This is a test";
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struct ex_block blocks[10];
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ex_opts(EX_VERBOSE);
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/* Specify compute and i/o word size */
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CPU_word_size = 0; /* sizeof(float) */
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IO_word_size = 4; /* (4 bytes) */
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/* create EXODUS II file */
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exoid = ex_create("test-results.exo", /* filename path */
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EX_CLOBBER, /* create mode */
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&CPU_word_size, /* CPU float word size in bytes */
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&IO_word_size); /* I/O float word size in bytes */
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printf("after ex_create for test.exo, exoid = %d\n", exoid);
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printf(" cpu word size: %d io word size: %d\n", CPU_word_size, IO_word_size);
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num_dim = 0;
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num_nodes = 33;
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num_elem = 7;
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num_elem_blk = 7;
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num_node_sets = 0;
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num_side_sets = 0;
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ex_put_init(exoid, title, num_dim, num_nodes, num_elem, num_elem_blk, num_node_sets,
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num_side_sets);
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/* write element block parameters */
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for (i = 0; i < 10; i++) {
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blocks[i].type = EX_ELEM_BLOCK;
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blocks[i].id = i + 10;
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blocks[i].num_entry = 1;
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blocks[i].num_nodes_per_entry = 0;
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blocks[i].num_edges_per_entry = 0;
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blocks[i].num_faces_per_entry = 0;
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blocks[i].num_attribute = 0;
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}
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ex_put_block_params(exoid, num_elem_blk, blocks);
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/* write results variables parameters and names */
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num_glo_vars = 1;
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var_names[0] = "glo_vars";
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error = ex_put_variable_param(exoid, EX_GLOBAL, num_glo_vars);
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printf("after ex_put_variable_param, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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error = ex_put_variable_names(exoid, EX_GLOBAL, num_glo_vars, var_names);
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printf("after ex_put_variable_names, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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num_nod_vars = 2;
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/* 12345678901234567890123456789012 */
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var_names[0] = "node_variable_a_very_long_name_0";
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var_names[1] = "nod_var1";
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error = ex_put_variable_param(exoid, EX_NODAL, num_nod_vars);
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printf("after ex_put_variable_param, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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error = ex_put_variable_names(exoid, EX_NODAL, num_nod_vars, var_names);
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printf("after ex_put_variable_names, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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num_ele_vars = 3;
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/* 0 1 2 3 */
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/* 12345678901234567890123456789012 */
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var_names[0] = "this_variable_name_is_short";
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var_names[1] = "this_variable_name_is_just_right";
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var_names[2] = "this_variable_name_is_tooooo_long";
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error = ex_put_variable_param(exoid, EX_ELEM_BLOCK, num_ele_vars);
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printf("after ex_put_variable_param, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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error = ex_put_variable_names(exoid, EX_ELEM_BLOCK, num_ele_vars, var_names);
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printf("after ex_put_variable_names, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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/* write element variable truth table */
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truth_tab = (int *)calloc((num_elem_blk * num_ele_vars), sizeof(int));
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k = 0;
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for (i = 0; i < num_elem_blk; i++) {
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for (j = 0; j < num_ele_vars; j++) {
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truth_tab[k++] = 1;
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}
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}
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error = ex_put_truth_table(exoid, EX_ELEM_BLOCK, num_elem_blk, num_ele_vars, truth_tab);
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printf("after ex_put_elem_var_tab, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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free(truth_tab);
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/* for each time step, write the analysis results;
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* the code below fills the arrays glob_var_vals,
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* nodal_var_vals, and elem_var_vals with values for debugging purposes;
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* obviously the analysis code will populate these arrays
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*/
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whole_time_step = 1;
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num_time_steps = 10;
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glob_var_vals = (float *)calloc(num_glo_vars, CPU_word_size);
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nodal_var_vals = (float *)calloc(num_nodes, CPU_word_size);
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elem_var_vals = (float *)calloc(4, CPU_word_size);
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for (i = 0; i < num_time_steps; i++) {
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time_value = (float)(i + 1) / 100.0f;
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/* write time value */
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error = ex_put_time(exoid, whole_time_step, &time_value);
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printf("after ex_put_time, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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/* write global variables */
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for (j = 0; j < num_glo_vars; j++) {
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glob_var_vals[j] = (float)(j + 2) * time_value;
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}
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error = ex_put_var(exoid, whole_time_step, EX_GLOBAL, 1, 1, num_glo_vars, glob_var_vals);
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printf("after ex_put_glob_vars, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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/* write nodal variables */
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for (k = 1; k <= num_nod_vars; k++) {
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for (j = 0; j < num_nodes; j++) {
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nodal_var_vals[j] = (float)k + ((float)(j + 1) * time_value);
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}
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error = ex_put_var(exoid, whole_time_step, EX_NODAL, k, 1, num_nodes, nodal_var_vals);
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printf("after ex_put_nodal_var, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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}
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/* write element variables */
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for (k = 1; k <= num_ele_vars; k++) {
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for (j = 0; j < num_elem_blk; j++) {
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for (m = 0; m < blocks[j].num_entry; m++) {
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elem_var_vals[m] = (float)(k + 1) + (float)(j + 2) + ((float)(m + 1) * time_value);
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/* printf("elem_var_vals[%d]: %f\n",m,elem_var_vals[m]); */
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}
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error = ex_put_var(exoid, whole_time_step, EX_ELEM_BLOCK, k, blocks[j].id,
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blocks[j].num_entry, elem_var_vals);
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printf("after ex_put_elem_var, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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}
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}
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whole_time_step++;
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/* update the data file; this should be done at the end of every time step
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* to ensure that no data is lost if the analysis dies
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*/
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error = ex_update(exoid);
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printf("after ex_update, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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}
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free(glob_var_vals);
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free(nodal_var_vals);
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free(elem_var_vals);
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/* close the EXODUS files
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*/
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error = ex_close(exoid);
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printf("after ex_close, error = %d\n", error);
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if (error) {
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ex_close(exoid);
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exit(-1);
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}
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return 0;
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}
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