Revision as of 11:57, 19 April 2018 view source Chris Huxley (talk \| contribs) Bureaucrats, Administrators 7,786 edits →HPC 2D Timestep ← Older edit		Revision as of 14:00, 20 April 2018 view source Chris Huxley (talk \| contribs) Bureaucrats, Administrators 7,786 edits →HPC 2D Timestep Newer edit →
Line 40: Repeated timesteps are an indication the 2D HPC solution is numerically “on-the-edge”. Models that have a high number of repeated timesteps should be sensitivity tested by reducing the control number limits using <font color="blue"><tt>Control Number Factor</tt></font>. For example, repeat the simulation using <font color="blue"><tt>Control Number Factor</tt></font><font color="red"><tt>==</tt></font><tt> 0.8 </tt> and compare the results. If there are acceptably immeasurable changes in the results, then running at the default control number limits can be considered satisfactory. ''NOTE: Models that require an excessively small 2D timestep to remain stable are symptomatic of ~~model~~models with input topography or boundary condition errors. Please refer to [Tutorial_Module03 \| Tutorial Module 03] for discussion on this topic.'' =HPC 1D Timesteping=

HPC Adaptive Timestepping: Difference between revisions