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PISM, A Parallel Ice Sheet Model
stable v2.1-1-g6902d5502 committed by Ed Bueler on 2023-12-20 08:38:27 -0800
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Time management class. More...
#include <Time.hh>
Classes | |
| struct | Interval |
Public Types | |
| typedef std::shared_ptr< Time > | Ptr |
| typedef std::shared_ptr< const Time > | ConstPtr |
Public Member Functions | |
| Time (MPI_Comm com, Config::ConstPtr config, const Logger &log, units::System::Ptr unit_system) | |
| virtual | ~Time ()=default |
| void | set (double new_time) |
| Sets the current time (in seconds since the reference time). More... | |
| void | set_start (double new_start) |
| void | set_end (double new_end) |
| void | step (double delta_t) |
| Advance by delta_t seconds. More... | |
| double | current () const |
| Current time, in seconds. More... | |
| double | start () const |
| double | end () const |
| std::string | calendar () const |
| Returns the calendar string. More... | |
| std::string | run_length () const |
| Returns the length of the current run, in years. More... | |
| void | init_calendar (const std::string &calendar) |
| std::vector< double > | parse_times (const std::string &spec) const |
| std::string | units_string () const |
| Internal time units as a string. More... | |
| units::Unit | units () const |
| double | year_fraction (double T) const |
| Returns the fraction of a year that passed since the last beginning of a year. Only useful in codes with a "yearly cycle" (such as the PDD model). More... | |
| double | day_of_the_year_to_year_fraction (unsigned int day) const |
| Convert the day number to the year fraction. More... | |
| double | calendar_year_start (double T) const |
Returns the model time in seconds corresponding to the beginning of the year T falls into. More... | |
| double | increment_date (double T, double years) const |
| std::string | date (double T) const |
| Returns the date corresponding to time T. More... | |
| double | convert_time_interval (double T, const std::string &units) const |
| Convert time interval from seconds to given units. Handle 'years' using the year length corresponding to the calendar. More... | |
Protected Types | |
| enum | IntervalType { YEARLY , MONTHLY , SIMPLE } |
Protected Member Functions | |
| std::vector< double > | parse_list (const std::string &spec) const |
| std::vector< double > | parse_range (const std::string &spec) const |
| void | compute_times_simple (double time_start, double delta, double time_end, std::vector< double > &result) const |
| void | compute_times (double time_start, double time_end, const Interval &interval, std::vector< double > &result) const |
| Interval | parse_interval_length (const std::string &spec) const |
| double | years_to_seconds (double input) const |
| double | seconds_to_years (double input) const |
| void | init_from_file (MPI_Comm com, const std::string &filename, const Logger &log, bool set_start_time) |
Sets the time from a NetCDF file with a time dimension (-time_file). More... | |
| void | compute_times_monthly (std::vector< double > &result) const |
| void | compute_times_yearly (std::vector< double > &result) const |
Protected Attributes | |
| const Config::ConstPtr | m_config |
| const units::System::Ptr | m_unit_system |
| units::Unit | m_time_units |
| double | m_t_eps |
| Time resolution, in seconds. More... | |
| double | m_year_length |
| number of seconds in a year, for "year fraction" More... | |
| double | m_time_in_seconds |
| current time, in seconds since the reference time More... | |
| double | m_run_start |
| run start time, in seconds since the reference time More... | |
| double | m_run_end |
| run end tim, in seconds since the reference time More... | |
| std::string | m_calendar_string |
| CF calendar string. More... | |
| bool | m_simple_calendar |
Time management class.
This is to make it possible to switch between different implementations.
For example: 365-day no-leap calendar for spinups Gregorian calendar for XX-century forcing runs
This base class implements the 365-day no-leap version.
We want to be able to count time since a particular date, so it is helpful to keep in mind that the year "1986" in this context is not the year of the Chernobyl disaster but a year 1986 years since some date.
1.9.1