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time_grid.cpp
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time_grid.cpp
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#include "time_grid.h"
Time_grid::Time_grid( Config &conf )
{
check_correctness_of_related_config_fields( conf );
get_values_from_config( conf );
init_total_nodes();
shrink_time_step_size_if_necessary( conf );
shrink_time_save_step_if_necessary( conf );
set_current_time_and_node();
}
Time_grid::Time_grid( hid_t h5_time_grid_group )
{
herr_t status;
status = H5LTget_attribute_double( h5_time_grid_group, "./",
"total_time", &total_time ); hdf5_status_check( status );
status = H5LTget_attribute_double( h5_time_grid_group, "./",
"current_time", ¤t_time ); hdf5_status_check( status );
status = H5LTget_attribute_double( h5_time_grid_group, "./",
"time_step_size", &time_step_size ); hdf5_status_check( status );
status = H5LTget_attribute_double( h5_time_grid_group, "./",
"time_save_step", &time_save_step ); hdf5_status_check( status );
status = H5LTget_attribute_int( h5_time_grid_group, "./",
"total_nodes", &total_nodes ); hdf5_status_check( status );
status = H5LTget_attribute_int( h5_time_grid_group, "./",
"current_node", ¤t_node ); hdf5_status_check( status );
status = H5LTget_attribute_int( h5_time_grid_group, "./",
"node_to_save", &node_to_save ); hdf5_status_check( status );
status = H5Gclose(h5_time_grid_group); hdf5_status_check( status );
}
void Time_grid::check_correctness_of_related_config_fields( Config &conf )
{
total_time_gt_zero( conf );
time_step_size_gt_zero_le_total_time( conf );
time_save_step_ge_time_step_size( conf );
}
void Time_grid::get_values_from_config( Config &conf )
{
total_time = conf.time_config_part.total_time;
time_step_size = conf.time_config_part.time_step_size;
time_save_step = conf.time_config_part.time_save_step;
}
void Time_grid::init_total_nodes()
{
total_nodes = ceil( total_time / time_step_size ) + 1;
}
void Time_grid::shrink_time_step_size_if_necessary( Config &conf )
{
time_step_size = total_time / ( total_nodes - 1 );
if ( time_step_size != conf.time_config_part.time_step_size ) {
std::cout.precision(3);
std::cout << "Time step was shrinked to " << time_step_size
<< " from " << conf.time_config_part.time_step_size
<< " to fit round number of cells."
<< std::endl;
}
}
void Time_grid::shrink_time_save_step_if_necessary( Config &conf )
{
time_save_step = ( (int)( time_save_step / time_step_size ) ) * time_step_size;
if ( time_save_step != conf.time_config_part.time_save_step ) {
std::cout.precision(3);
std::cout << "Time save step was shrinked to " << time_save_step
<< " from " << conf.time_config_part.time_save_step
<< " to be a multiple of time step."
<< std::endl;
}
node_to_save = (int) ( time_save_step / time_step_size );
}
void Time_grid::set_current_time_and_node()
{
current_time = 0.0;
current_node = 0;
}
void Time_grid::update_to_next_step()
{
current_node++;
current_time += time_step_size;
}
void Time_grid::print( )
{
std::cout << "### Time grid:" << std::endl;
std::cout << "Total time = " << total_time << std::endl;
std::cout << "Current time = " << current_time << std::endl;
std::cout << "Time step size = " << time_step_size << std::endl;
std::cout << "Time save step = " << time_save_step << std::endl;
std::cout << "Total nodes = " << total_nodes << std::endl;
std::cout << "Current node = " << current_node << std::endl;
std::cout << "Node to save = " << node_to_save << std::endl;
return;
}
void Time_grid::write_to_file( hid_t hdf5_file_id )
{
hid_t group_id;
herr_t status;
int single_element = 1;
std::string hdf5_groupname = "/TimeGrid";
group_id = H5Gcreate( hdf5_file_id, hdf5_groupname.c_str(),
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); hdf5_status_check( group_id );
status = H5LTset_attribute_double( hdf5_file_id, hdf5_groupname.c_str(),
"total_time", &total_time, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_double( hdf5_file_id, hdf5_groupname.c_str(),
"current_time", ¤t_time, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_double( hdf5_file_id, hdf5_groupname.c_str(),
"time_step_size", &time_step_size, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_double( hdf5_file_id, hdf5_groupname.c_str(),
"time_save_step", &time_save_step, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_int( hdf5_file_id, hdf5_groupname.c_str(),
"total_nodes", &total_nodes, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_int( hdf5_file_id, hdf5_groupname.c_str(),
"current_node", ¤t_node, single_element ); hdf5_status_check( status );
status = H5LTset_attribute_int( hdf5_file_id, hdf5_groupname.c_str(),
"node_to_save", &node_to_save, single_element ); hdf5_status_check( status );
status = H5Gclose(group_id); hdf5_status_check( status );
return;
}
void Time_grid::hdf5_status_check( herr_t status )
{
if( status < 0 ){
std::cout << "Something went wrong while writing Time_grid group. Aborting."
<< std::endl;
exit( EXIT_FAILURE );
}
}
void Time_grid::total_time_gt_zero( Config &conf )
{
check_and_exit_if_not(
conf.time_config_part.total_time >= 0,
"total_time < 0" );
}
void Time_grid::time_step_size_gt_zero_le_total_time( Config &conf )
{
check_and_exit_if_not(
( conf.time_config_part.time_step_size > 0 ) &&
( conf.time_config_part.time_step_size <= conf.time_config_part.total_time ),
"time_step_size <= 0 or time_step_size > total_time" );
return;
}
void Time_grid::time_save_step_ge_time_step_size( Config &conf )
{
check_and_exit_if_not(
conf.time_config_part.time_save_step >= conf.time_config_part.time_step_size,
"time_save_step < time_step_size" );
return;
}
void Time_grid::check_and_exit_if_not( const bool &should_be, const std::string &message )
{
if( !should_be ){
std::cout << "Error: " + message << std::endl;
exit( EXIT_FAILURE );
}
return;
}