gpu_handle_types/
device.rs

1// SPDX-License-Identifier: MIT OR Apache-2.0
2
3use crate::BackendKind;
4
5/// Stable identity of a physical GPU / CPU / accelerator. Used as cache
6/// key in multi-GPU setups and as an equality test for
7/// `Error::DeviceMismatch`.
8#[derive(Debug, Clone, PartialEq, Eq, Hash)]
9pub enum DeviceId {
10    /// The host CPU pseudo-device — the target of the CPU fallback
11    /// backend. A single canonical identity (the host has one logical
12    /// CPU compute target from the library's perspective), so it carries
13    /// no payload and all CPU devices compare equal.
14    Cpu,
15    VulkanUuid([u8; 16]),
16    CudaUuid([u8; 16]),
17    DxgiLuid {
18        high: i32,
19        low: u32,
20    },
21    MetalRegistryId(u64),
22    OpenCl {
23        platform: String,
24        device: String,
25    },
26}
27
28#[derive(Debug, Clone)]
29pub struct DeviceInfo {
30    pub backend: BackendKind,
31    pub name: String,
32    pub id: DeviceId,
33    pub vendor_id: Option<u32>,
34    pub device_pci_id: Option<u32>,
35    pub dedicated_memory_bytes: u64,
36    pub is_integrated: bool,
37}
gpu_handle_types/device.rs

gpu_handle_types/
device.rs
