Difference between revisions of "TUFLOW Message 3043"
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Latest revision as of 10:18, 3 March 2023
TUFLOW Message
ERROR 3043 - Model unstable.
Alternate Message
ERROR 3043 - Too many consecutive failed step attempts.
Message Type
ERROR
Description
Either:
- A model running with fixed timestep has encountered NaNs.
- A model running with adaptive timestep has exceeded the maximum step retry count.
- A model running with adaptive timestep has dropped below the minimum allowable timestep.
Suggestions
- If running a fixed timestep for a reason, consider first running in adaptive timestep mode and then identifying the minimum timestep used in the .hpc.dt.csv file, and then using this value (or slightly less) as the fixed timestep.
- If running with adaptive timestep and the model has exceeded the maximum step retry count, try running with a reduced "HPC Control Number".
- If running with adaptive timestep and the model has dropped below the minimum allowable timestep, consider whether the minimum timestep is reasonable and reduce if necessary.
- Also review the "Minimum dt" map output and messages layer to see if a particular location is responsible, and then review model details in the region.
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