EcoAssist should automatically run on NVIDIA or Apple Silicon GPU if available. The appropriate CUDAtoolkit and cuDNN software is already included in the EcoAssist installation for Windows and Linux. If you have NVIDIA GPU available but it doesn't recognise it, make sure you have a recent driver installed, then reboot. An MPS compatible version of Pytorch is included in the installation for Apple Silicon users. The progress window will display whether EcoAssist is running on CPU or GPU. Email me if you need more assistance.