# SetRateManagerCreateAllocator(IRateManager)

> Set optional rate manager for the system group and create group allocator.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public void SetRateManagerCreateAllocator(IRateManager rateManager)
```

### Parameters

**** (\[IRateManager]\(/engine/7000.0/script-reference/unity/entities/iratemanager)): The [IRateManager](/engine/7000.0/script-reference/unity/entities/iratemanager.md) to set the allocator to

### Remarks

Create a group allocator for this system group if not created already.