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  "license": {
    "declared_spdx": "apache-2.0",
    "scope": "Source declaration only; base weights, converters, runtimes and source integration material retain their own terms."
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  "editorial": {
    "version": 1,
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    "answer": "The v2.4.0 promotion arm serves the pinned GDN-MSE checkpoint, with an extra MXFP8 prefill shard. NVFP4 expert weights, MXFP8 paths and a refitted four-draft MTP head are separate components. The experimental image tag is retained; the later release-image digest does not prove the exact cold-test image digest. Repository release names are specific to this one-Spark recipe.",
    "sections": [
      {
        "heading": "Which quantization and build were tested?",
        "paragraphs": [
          "The v2.4.0 promotion arm serves the pinned GDN-MSE checkpoint, with an extra MXFP8 prefill shard. NVFP4 expert weights, MXFP8 paths and a refitted four-draft MTP head are separate components. The experimental image tag is retained; the later release-image digest does not prove the exact cold-test image digest. Repository release names are specific to this one-Spark recipe."
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          "https://github.com/ursuciprian/qwen3.8-flash-next-1x-dgx-spark/blob/348ede7e28a01f6aa6b501aaf2392d20a286a012/results/k103-1x-prefill-combo-ab-20261016-1206/cb-01/arm-p1/recipe.yaml"
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        "heading": "What does the long-prompt curve measure?",
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          "The selected cold-prefix observations cover 16384, 65536 and 131072 input tokens at C1, temperature zero and one requested output token. Values are means of four boots with three cold prompts each; reported SD is between boot means. A cold prefix does not establish cold operating-system page cache. These are prefill/TTFT observations, not long-response decode or broad reasoning accuracy."
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      {
        "heading": "How should memory limits be read?",
        "paragraphs": [
          "The recipe allocates a 14 GiB FP8 KV pool and reports 993754 token capacity, while its request window is 262144 and scheduler ceiling is eight requests. The token pool is shared: these numbers do not demonstrate eight simultaneous full windows. PLE uses NVMe mmap and page cache. The 0.01 GPU-memory-utilization setting is a startup guard with explicit KV bytes, not measured one-percent memory use."
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        "citations": [
          "https://github.com/ursuciprian/qwen3.8-flash-next-1x-dgx-spark/blob/348ede7e28a01f6aa6b501aaf2392d20a286a012/README.md",
          "https://github.com/ursuciprian/qwen3.8-flash-next-1x-dgx-spark/blob/348ede7e28a01f6aa6b501aaf2392d20a286a012/results/k103-1x-prefill-combo-ab-20261016-1206/cb-01/arm-p1/recipe.yaml"
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        "heading": "How should two-Spark comparisons be selected?",
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          "The project numbers releases independently for one-Spark and two-Spark setups. Its capability table also combines dated measurements when a newer build has no corresponding cell. Keep setup, release, workload and original run path together instead of treating every headline cell as one matched scaling experiment."
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        "statistic": "mean of 4 boots x 3 cold prompts, sd between boots",
        "uncertainty": {
          "kind": "SD between boot means, not confidence interval",
          "standard_deviation": 3.7
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  "memory_observations": [
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      "cold_prefix_is_not_cold_page_cache": true
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}
