Warnings (Grid Overlay): Difference between revisions
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===Insufficient memory=== | ===Insufficient memory=== | ||
An overlay's simulation model | An overlay's simulation model comprises numerous data arrays, such as fluxes and water levels in a water simulation, which are processed on the GPUs. When this error arises, it indicates that the total number of data arrays required for the simulation exceeds the available GPU memory (note that GPUs have their own dedicated memory, distinct from the general RAM used by the CPU). This error is constrained by hardware limitations and can only be addressed by reducing the dataset size. There are several solutions: | ||
* The first approach is to increase the grid cell size, as fewer cells will result in reduced memory usage. | |||
* The second option involves simplifying the simulation by using fewer result types or model options. For instance, result types like AVG_DIRECTION, FLOOD_RISE_RATE, or TRACERS in the water model generate additional arrays. | |||
* Disabling options like groundwater in a water simulation can also help decrease the data volume. | |||
* Lastly, the number of timeframes does not affect memory usage. Timeframes are snapshots taken during the simulation and sent back to the Project on the CPU, but they do not require additional data arrays on the GPU. | |||
===Prequel=== | ===Prequel=== | ||
Revision as of 10:05, 11 July 2025
When a Grid Overlay performs a calculation, one or more warnings may be displayed regarding the state or completion of the calculation. The warnings listed here are applicable for all Grid Overlay calculations.
Generic Warnings
The following warnings can occur for any Grid Overlay calculation.
Calculation was cancelled
The calculation did not run to completion, because it was cancelled by the user. Depending on the calculation being performed, partial results may be available.
Calc too long forced timeout
The calculation exceeded the allowed calculation time. During business hours (9-17, GMT+1, during weekdays), there is a maximum calculation time of 1 hour. If during business hours a calculation has been calculating for an hour, the calculation times out automatically. Depending on the calculation being performed, partial results may be available.
Error in GPU calculation
During the calculation, an unknown error has occurred. This may be due to an unexpected configuration of the specific calculation, or an internal error in the calculation infrastructure. Please contact support with a description of the calculation and its related settings to further investigate the issue.
Insufficient memory
An overlay's simulation model comprises numerous data arrays, such as fluxes and water levels in a water simulation, which are processed on the GPUs. When this error arises, it indicates that the total number of data arrays required for the simulation exceeds the available GPU memory (note that GPUs have their own dedicated memory, distinct from the general RAM used by the CPU). This error is constrained by hardware limitations and can only be addressed by reducing the dataset size. There are several solutions:
- The first approach is to increase the grid cell size, as fewer cells will result in reduced memory usage.
- The second option involves simplifying the simulation by using fewer result types or model options. For instance, result types like AVG_DIRECTION, FLOOD_RISE_RATE, or TRACERS in the water model generate additional arrays.
- Disabling options like groundwater in a water simulation can also help decrease the data volume.
- Lastly, the number of timeframes does not affect memory usage. Timeframes are snapshots taken during the simulation and sent back to the Project on the CPU, but they do not require additional data arrays on the GPU.
Prequel
When a Grid Overlay encounters an error, its results may not be valid. Any other Grid Overlay which uses that first Grid Overlay as a prequel will warn about that error in one of the prequels taking place. Subsequent Grid Overlays relying on that one will also report the error.
Specific Warnings
For more information on the warnings which can occur for specific calculation, find the warning page for your calculation.