Colmap2nerf.py for camera matching, how to specify GPU for colmap

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When I run the script for camera matching the image set I already generated, colmap uses my worst integrated graphics card, listed as GPU 0. How could I tell it use my best gpu, 4090, which is in system as GPU 2? Is there any way to add that to the terminal command I usually run? It does work with this way but I'd rather have control over gpu