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# SamplerDPMPP_SDE - ComfyUI Built-in Node Documentation

> SamplerDPMPPSDE creates a DPM++ SDE (Stochastic Differential Equation) sampler for use in the sampling process.

SamplerDPMPP\_SDE creates a DPM++ SDE (Stochastic Differential Equation) sampler for use in the sampling process. This sampler provides a stochastic sampling method with configurable noise parameters and device selection. It returns a sampler object that can be used in the sampling pipeline.

## Inputs

| Parameter      | Description                                                                                                                                                                                  | Data Type | Required | Range            |
| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- | -------- | ---------------- |
| `eta`          | Controls the stochasticity of the sampling process (default: 1.0)                                                                                                                            | FLOAT     | Yes      | 0.0 - 100.0      |
| `s_noise`      | Controls the amount of noise added during sampling (default: 1.0)                                                                                                                            | FLOAT     | Yes      | 0.0 - 100.0      |
| `r`            | A parameter that influences the sampling behavior (default: 0.5)                                                                                                                             | FLOAT     | Yes      | 0.0 - 100.0      |
| `noise_device` | Selects the device where noise calculations are performed. When set to "cpu", the `dpmpp_sde` sampler is created; when set to "gpu", the `dpmpp_sde_gpu` sampler is created (default: "gpu") | COMBO     | Yes      | "gpu"<br />"cpu" |

Note: All inputs are marked as advanced parameters. The `noise_device` selection changes which sampler variant is created: "cpu" maps to `dpmpp_sde` and "gpu" maps to `dpmpp_sde_gpu`.

## Outputs

| Output Name | Description                                                                 | Data Type |
| ----------- | --------------------------------------------------------------------------- | --------- |
| `sampler`   | Returns a configured DPM++ SDE sampler object for use in sampling pipelines | SAMPLER   |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/SamplerDPMPP_SDE/en.md)

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