Device

Describes the device (host or GPU) where a memory allocation resides.

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Device class describes the device a given allocation resides in. Usually host ("cpu") or GPU ("cuda") memory.

When a system contains multiple GPU devices, specific GPU devices can be identified by including their ordinal index number. For example, to reference the second GPU in a system "cuda:1" can be used.

By default, when "cuda" is provided, it is assumed to be "cuda:0" or the first GPU enumerated by the system.

Properties

id
int

The identity, or ordinal, of the device. When the device is the HOST, this value is always 0. When the device is a GPU, this value identifies a specific GPU.

kind
DeviceKind

The DeviceKind of device the instance references.