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perf(rocm): fuse Kimi-K3 B1 latent MoE tail - #17

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JohnQinAMD wants to merge 1 commit into
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perf/kimi-k3-latent-tail-clean
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JohnQinAMD wants to merge 1 commit into
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perf/kimi-k3-latent-tail-clean

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Summary

Install the AITER Kimi-K3 latent-MoE tail specialization from the AMD model
only when its fixed construction contract is supported. Runtime tensor checks
remain in AITER, and every unsupported request follows the existing path.

This PR depends on JohnQinAMD/aiter-amd#17.

Scope

The two-file diff adds the AMD construction/dispatch ownership and focused
tests. NVIDIA model code, kernels, and runner selection are unchanged. No
environment flag or model-name scan is introduced.

Performance

  • Local tail chain: 1.51x.
  • Approximately 276 launches removed per generated token.
  • Kimi-K3 TP8 batch-one endpoint: 45.835 -> 47.644 tok/s (+3.95%), saving
    0.828 ms/token.

Accuracy and validation

  • Focused tests cover construction acceptance, rejection, runtime fallback,
    output ownership, and the AITER call contract.
  • The accepted stack passed frozen GSM8K first 100 at 100/100 with zero invalid
    responses.
  • Current-main changed-file pre-commit passed, including Ruff, format, Python
    3.10 mypy, SPDX, import guards, configuration checks, and CUDA API guard.
  • git diff --check passed.

Disclosure

Developed with assistance from OpenAI Codex. The author reviewed the model
boundary, fallback path, tests, and endpoint evidence.

Install the exact AITER latent-tail specialization only from AMD Kimi-K3 and preserve the existing path when its construction or runtime contract is unsupported.

Assisted-by: OpenAI Codex
Signed-off-by: Yanyuan Qin <yanyuan.qin@amd.com>
@JohnQinAMD JohnQinAMD added the ready Ready for CI label Jul 31, 2026
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