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OpenDC uses power models to determine the power draw based on the utilization of a host.
All models in OpenDC are based on linear models interpolated between the idle and max power draw.
OpenDC currently supports the following power models:
1. **Constant**: The power draw is constant and does not depend on the utilization of the host.
2. **Sqrt**: The power draw interpolates between idle and max using a square root function.
3. **Linear**: The power draw interpolates between idle and max using a linear function.
4. **Square**: The power draw interpolates between idle and max using a square function.
5. **Cubic**The power draw interpolates between idle and max using a cubic function.
The power model is defined using the following parameters:
| variable | type | Unit | required? | default | description |
|-----------|--------|------|-----------|---------|--------------------------------------------------------------------|
| modelType | string | N/A | yes | N/A | The type of model used to determine power draw |
| power | double | Mhz | no | 400 | The power draw of a host when using the constant power draw model. |
| idlePower | double | Mhz | yes | N/A | The power draw of a host when idle in Watt. |
| maxPower | double | Mhz | yes | N/A | The power draw of a host when using max capacity in Watt. |
## Example
```json
{
"modelType": "sqrt",
"idlePower": 32.0,
"maxPower": 180.0
}
```
This creates a power model that uses a square root function to determine the power draw of a host.
The model uses an idle and max power of 32 W and 180 W respectively.
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