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3e62fbb0 - [docs] no hard-coding cuda (#3270)

[docs] no hard-coding cuda (#3270) * no hard-coding cuda * Update docs/source/usage_guides/big_modeling.md Co-authored-by: Zach Mueller <muellerzr@gmail.com> * update device_type --------- Co-authored-by: Zach Mueller <muellerzr@gmail.com>