> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/sdgm/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/sdgm/_mcp/server.

# channels

#### `channels: <list[int]>` (Optional)

## Description

A list of dimension of layers in the graph neural network model for AutoML to explore.

* `channels` must be an even number between `>= 2` and `<= 1024`.

### Supported Task Types

* All

### Default Values

| [run\_mode](/run-mode) | Default Value    |
| ---------------------- | ---------------- |
| FAST                   | `[64, 128, 256]` |
| NORMAL                 | `[64, 128, 256]` |
| BEST                   | `[64, 128, 256]` |