# computeDeviceIdentity

A compute device identity record carrying id, backend, family, generation, available, and related state.

Last updated: 2026-09-09

Package: compute.device | Status: source-declared

Tags: compute, compute.device, cpu, device, method, source-example, thing, yeho

Inspect device capability catalogs and model resource lifetimes and placement decisions.

```yh
external thing computeDeviceIdentity
```

- text id: Stores id as text.
- text backend: Stores backend as text.
- text family: Stores family as text.
- int generation: Stores generation as int.
- bool available: Stores available as bool.
- text status: Stores status as text.
- computeDeviceIdentity(text id, text backend, text family, int generation, bool available, text status): Compute device identity.
- Describe() returns text: Describe.

## Use computeDeviceIdentity

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using compute.device

// Inspect device capability catalogs and model resource lifetimes and placement decisions.
computeDeviceIdentity sample = computeDeviceIdentity("id", "cpu-oracle", "cpu", 1, true, "ready")
Console.Log(Text.From(sample.id))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.compute_device__computedeviceidentity"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "compute.buffer"
version = "0.1.0"
path = "../../../yeho/packages/compute/buffer"

[[dependencies]]
package = "compute.device"
version = "0.1.0"
path = "../../../yeho/packages/compute/device"

[[dependencies]]
package = "compute.tensor"
version = "0.1.0"
path = "../../../yeho/packages/compute/tensor"

[[dependencies]]
package = "console"
version = "0.1.0"
path = "../../../yeho/packages/console"

[[dependencies]]
package = "diagnostics"
version = "0.1.0"
path = "../../../yeho/packages/diagnostics"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/compute.device--computeDeviceIdentity/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


## computeDeviceIdentity.Describe

A complete caller for this public method. Sample inputs are illustrative; native resources require their owning lifecycle.

Verification: type checked

```yh
using compute.device

// Describe.
computeDeviceIdentity instance = computeDeviceIdentity("id", "cpu-oracle", "cpu", 1, true, "ready")
text result = instance.Describe()
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.compute_device__computedeviceidentity"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "compute.buffer"
version = "0.1.0"
path = "../../../yeho/packages/compute/buffer"

[[dependencies]]
package = "compute.device"
version = "0.1.0"
path = "../../../yeho/packages/compute/device"

[[dependencies]]
package = "compute.tensor"
version = "0.1.0"
path = "../../../yeho/packages/compute/tensor"

[[dependencies]]
package = "console"
version = "0.1.0"
path = "../../../yeho/packages/console"

[[dependencies]]
package = "diagnostics"
version = "0.1.0"
path = "../../../yeho/packages/diagnostics"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/compute.device--computeDeviceIdentity/method-Describe-7 --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/compute/device/resource_runtime.yh

AI training permission: https://demonhunterlabs.com/ai-use