SMS:CMS-Flow Hot Start: Difference between revisions

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#redirect [[SMS:CMS-Flow_Files#Hot_Start_File]]
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In the CMS-Flow [[SMS:CMS-Flow Model Control|Model Control]], the user can specify a previously saved hot start file to be used as initial conditions or instruct [[SMS:CMS-Flow|CMS-Flow]] to save hot start files for future use.
 
To create a hot start file, either select "Write Hot Start output file" and select an output time, or select "Automatic recurring Hot Start file" and choose an output interval.
 
*Choosing to write the hot start file at a specific output time will create the following file:
**''hot_start.h5'' This file has the simulation data including elevations and velocities.
 
*Choosing automatic recurring hot start files will create the following files:
**''HOTSTART.INFO'' This file records what time the hot start file was written and which hot start file is the most recent.
**''HOTSTARTx.H5'' (where "x" is a counter) These files have the simulation data including elevations and velocities.
 
Once the hot start files are created, they can be read into CMS-Flow. Open the CMS-Flow Model Control and check the "initial conditions file" check box, then select the hot start file you wish to use.
 
When using a hot start file, the following parameters should be changed as follows:
*''Start Date'': no change
*''Start Time'': no change
*''Simulation Duration'': decrease by the duration of the hot start file
*''Boundary Conditions'': no change
 
Note: For a simulation using a hot start file, the first time step of the solution will be the start time plus the value of one time step plus the duration of the hot start file.
 
== Related Topics ==
* [[SMS:CMS-Flow|CMS-Flow]]
 
 
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Latest revision as of 14:08, 6 October 2015