HPC Model Review: Difference between revisions

<font color="blue"><tt>Map Output Data Types </tt></font><font color="red"><tt>==</tt></font><tt> dt </tt> writes the minimum dt (timestep) calculated for each cell in the model to the specified Map Output Format (XMDF, DAT, ASC, FLT etc.). Reviewing this output helps modellers identify which cells in the model have the lowest timestep and thereby control the model timestep. These locations are likely to have the greatest depth, velocity or turbulence in the model, forcing TUFLOW to lower the timestep to satisfy the conditions of the controlling numbers mentioned in the <u>[[HPC_Adaptive_Timestepping | HPC Adaptive Timestepping]]</u> page. If the timestep is extremely low the HPC model might be “hiding” poor data or model setup in this location. The simulation timestep will always be limited by the minimum occurring timestep anywhere in the model, hence it is important to ensure timestepping isn’t being unnecessarily restricted due to poor model configuration in one spot, even in only in one cell. <br>