torch.cuda.set_device

torch.cuda.set_device(device) [source]

Sets the current device.

Usage of this function is discouraged in favor of device. In most cases it’s better to use CUDA_VISIBLE_DEVICES environmental variable.

Parameters: device (torch.device or int) – selected device. This function is a no-op if this argument is negative.

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https://pytorch.org/docs/2.1/generated/torch.cuda.set_device.html