TSSetTimeSpan#
sets the time span. The solution will be computed and stored for each time requested in the span
Synopsis#
#include "petscts.h"
PetscErrorCode TSSetTimeSpan(TS ts, PetscInt n, PetscReal *span_times)
Collective
Input Parameters#
ts - the time-stepper
n - number of the time points (>=2)
span_times - array of the time points. The first element and the last element are the initial time and the final time respectively.
Options Database Key#
-ts_time_span <t0,…tf> - Sets the time span
Notes#
This function is identical to TSSetEvaluationTimes(), except that it also sets the initial time and final time for the ts to the first and last span_times entries.
The elements in tspan must be all increasing. They correspond to the intermediate points for time integration.
TS_EXACTFINALTIME_MATCHSTEP must be used to make the last time step in each sub-interval match the intermediate points specified.
The intermediate solutions are saved in a vector array that can be accessed with TSGetEvaluationSolutions(). Thus using time span may
pressure the memory system when using a large number of span points.
See Also#
TS: Scalable ODE and DAE Solvers, TS, TSSetEvaluationTimes(), TSGetEvaluationTimes(), TSGetEvaluationSolutions()
Level#
intermediate
Location#
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages