# CompareTensorBuffersWithTolerance

Compare tensor buffers with tolerance.

Last updated: 2026-09-09

Package: compute.parity | Status: source-declared

Tags: compute, compute.parity, cpu, function, parity, source-example, yeho

Compare numerical results with explicit tolerances and CPU-reference evidence.

```yh
external CompareTensorBuffersWithTolerance(text label, text cpuPath, text optimizedPath, tensorBuffer expected, tensorBuffer actual, int tolerance) returns paritySummary
```


## Use CompareTensorBuffersWithTolerance

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

Verification: type checked

```yh
using compute.parity

// Compare numerical results with explicit tolerances and CPU-reference evidence.
text label = "Player health"
text cpuPath = "cpu Path"
text optimizedPath = "optimized Path"
tensorBuffer expected = tensorBuffer("Player health", tensorShape("element Type", []), "device")
tensorBuffer actual = tensorBuffer("Player health", tensorShape("element Type", []), "device")
int tolerance = 1
paritySummary result = CompareTensorBuffersWithTolerance(label, cpuPath, optimizedPath, expected, actual, tolerance)
Console.Log("Inspect result in your debugger")

```

Save this beside start.yh as project.mech:

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

[app]
kind = "headless"

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

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

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

[[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.parity--CompareTensorBuffersWithTolerance/usage --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/parity/parity_reports.yh

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