Recommended ComfyUI launch arguments for DGX Spark (Unified Memory Architecture)?

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Your question

I'd like to ask about the optimal ComfyUI launch parameters specifically for the DGX Spark.
Given that this device features a unified memory architecture (shared VRAM and system RAM), which combination of startup arguments would be considered best practice?
Should I use any of the following?
--highvram
--high-ram
--disable-dynamic-vram
--disable-mmap
--disable-pinned-memory
Or are there other recommended flags for this type of hardware?
Any insights or shared experiences would be greatly appreciated. Thanks!

### Logs

```powershell

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### Other

_No response_

The issue names no source file, test, or entry point; begin with the documented launch flags (--highvram, --high-ram, --disable-dynamic-vram, --disable-mmap, and --disable-pinned-memory) and the linked custom-node troubleshooting guide. Done would be an agreed DGX Spark recommendation documented with supporting runtime evidence.

Written by the indexing model from the issue text.