{
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  "plan_snapshot_sha256": "178b8b8b5735bf4c4f30b8cbe027db7764c95e47254c680b876e32d097e50455",
  "scope": "Requirement-level review against cached user plan and active goal. Evidence hashes identify reviewed snapshots; file existence alone does not prove completion. Report is a time-point delivery, not full-plan acceptance.",
  "requirements": [
    {
      "id": "K0",
      "requirement": "环境与完整时间线",
      "status": "部分完成",
      "finding_and_remaining": "环境身份及worker尾部覆盖已核对；全服务阶段与CPU因果链仍不完整。 新增同一运行的nsys+NVTX账本（生产模式）与逐chunk关键路径：480x832 稳态DiT 678 ms/VAE段 169 ms（解码 142，IPC回传 16），4卡同时空闲 58 ms；704x1280 稳态DiT 2138 ms/VAE段 338 ms（解码 290，IPC回传 34），4卡同时空闲 59 ms。时钟锚点与尾部检查通过。仍缺：CPU侧等待的逐线程因果链（请求进入与结果返回的空闲段仅定位到进程边界）与编码/网络/客户端段。",
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    {
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      "requirement": "每次调用、shape和上下文追溯",
      "status": "部分完成",
      "finding_and_remaining": "1091749次记录调用有物理GPU/API关联；完整逐层shape对应尚缺。 新增480×832 TP1/SP4的32000次Attention有效长度/阶段/层记录；与原nsys不属同一运行，不能直接逐调用嫁接。 高分辨率新增28个代表输入、90个kernel；两分辨率合计59个算子输入覆盖各自所选线性/卷积/转换结构。PID2019660有未归因的调度备注，保留原失败和后续带备注审核。两分辨率逐调用元数据均已补充，仍非与旧nsys同次运行映射。 新增同一运行逐调用账本：480x832 1,092,983次kernel，87.6%调用/99.9%稳态GPU时间有NVTX上下文，graph内位置由inductor wrapper源码对齐到子算子；704x1280 1,092,185次kernel，87.5%调用/100.0%稳态GPU时间有NVTX上下文，graph内位置由inductor wrapper源码对齐到子算子。shape按eager全算子dispatch采集附加（480x832 稳态GPU时间94.7%有shape；704x1280 稳态GPU时间95.8%有shape），融合kernel的shape为推断值。仍缺：融合kernel精确字节、非同一运行的shape来源说明已保留。 eager全算子dispatch采集的40份输出与对应eager参考逐位一致：480x832、704x1280。",
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      "requirement": "逐组硬件指标与瓶颈反证",
      "status": "部分完成／已恢复采集",
      "finding_and_remaining": "进程级授权与普通用户调度实测兼容；18个GEMM/VAE/转换真实输入计数器及同卡FA2/FA3对照通过审核。完整逐组覆盖、硬件反证及全模型MFU仍缺。 新增13种真实输入/48个kernel已审核；现有31种算子代表输入覆盖此480×832 TP1/SP4逐调用记录的12种线性、17种卷积与2种转换结构。仍不代表其他配置、所有实际调用或全模型MFU。 高分辨率新增28个代表输入、90个kernel；两分辨率合计59个算子输入覆盖各自所选线性/卷积/转换结构。PID2019660有未归因的调度备注，保留原失败和后续带备注审核。两分辨率逐调用元数据均已补充，仍非与旧nsys同次运行映射。 新增短KV、长KV及cross四组FA2/FA3共8次NCU均通过数值检查，并按输入SHA256匹配已有未插桩回放；两种计时独立呈现，不推导整模型加速。 新增全模型标称FLOPs与模型级MFU（同一运行关键路径为分母）：480x832 DiT 49.0%（BF16 dense）、VAE 14.5%（TF32 dense）、端到端 40.2%；704x1280 DiT 53.1%（BF16 dense）、VAE 15.9%（TF32 dense）、端到端 46.6%。标称口径，非硬件执行FLOPs。 新增69张逐组瓶颈卡（unresolved_no_dominant_limiter 17, compute_bound 29, partial_wave_tail 13, dram_bandwidth_bound 4, l2_bandwidth_bound 6）与账本分组归因：480x832 计数器归因68%/通信12%/推导6%/未归因14%；704x1280 计数器归因78%/通信7%/推导4%/未归因11%。稳态KV长度FA3核心按阈值规则无主导单元，stall/tensor-pipe/L2重采已排队；compiled融合kernel与paged gather无计数器；全模型MFU仍缺。",
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      "status": "部分完成",
      "finding_and_remaining": "12配置代表输入已覆盖，1004有效回放、4个math OOM；不是全层覆盖，MFU图尚缺。 新增短KV、长KV及cross四组FA2/FA3共8次NCU均通过数值检查，并按输入SHA256匹配已有未插桩回放；两种计时独立呈现，不推导整模型加速。 新增Attention有效FLOP利用率曲线：1004个聚合点，分母为规格BF16 dense 989.5 TF/s，另标同卡经验上限；回放GPU未逐卡校准，不是整模型MFU。",
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      "status": "部分完成",
      "finding_and_remaining": "18个真实输入有NCU、shape和标称FLOPs/DRAM流量图；新增同卡三启动连续访问带宽参考和NCU流量核对；同卡计算27点和12个同卡算子经验参考图已补充；完整模型映射、L2口径及完整Roofline仍缺。 新增13种真实输入/48个kernel已审核；现有31种算子代表输入覆盖此480×832 TP1/SP4逐调用记录的12种线性、17种卷积与2种转换结构。仍不代表其他配置、所有实际调用或全模型MFU。 小工作集三启动Graph配对和NCU流量已审核；Graph平均调用开销与普通提交显著不同，存在DRAM流量，仍不能认领纯L2峰值。 高分辨率新增28个代表输入、90个kernel；两分辨率合计59个算子输入覆盖各自所选线性/卷积/转换结构。PID2019660有未归因的调度备注，保留原失败和后续带备注审核。两分辨率逐调用元数据均已补充，仍非与旧nsys同次运行映射。 新增全模型标称FLOPs与模型级MFU（同一运行关键路径为分母）：480x832 DiT 49.0%（BF16 dense）、VAE 14.5%（TF32 dense）、端到端 40.2%；704x1280 DiT 53.1%（BF16 dense）、VAE 15.9%（TF32 dense）、端到端 46.6%。标称口径，非硬件执行FLOPs。 新增DRAM层Roofline（67个点，含Attention NCU）；L2层计数器未采集，重采已排队；完整模型映射改由同一运行账本承担。",
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          "bytes": 2053,
          "sha256": "ccecb9622ce9d1aaf914af2afce9feed5322176a78aebe14b432141e5eaf7ac6"
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        {
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          "bytes": 2003,
          "sha256": "98c3a02d1283d334fec800da4813d00bf9eea35fc33caf2a5302cd8d63786407"
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          "bytes": 2004,
          "sha256": "9883274059ff2d5500a22474413edda185ab1d549a29052021ca262c59f50a19"
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        {
          "path": "analysis/operator_roofline_v1.json",
          "bytes": 64857,
          "sha256": "7df66e54ab4149d51b622d9b6e9eae1a1e7688373fac0791f165750a5a835b2d"
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    {
      "id": "G1",
      "requirement": "整模型优化验收",
      "status": "未通过",
      "finding_and_remaining": "cuDNN cross候选40份输出均未通过门槛；尚无接受的整模型加速。 新SDPA Flash候选的6个实际实现输入已完成独立数值和kernel审核；该结果不能替代整模型验收。 本次检查未确认模型任务仍存活，不能仅凭历史状态认定在运行。 新候选保存输出数值检查未通过；单次A/B不构成稳定性能验收。",
      "evidence": [
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          "path": "analysis/cross_candidate_eager_r0_comparison.json",
          "bytes": 43280,
          "sha256": "489b316b15752136c50d0fad9825806de4f62111dd5683c545b27f47382e80da"
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        {
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          "bytes": 5896,
          "sha256": "3643831214810f3467fc2be23ddc7ad6406e0bfecdee3f815d5d69efe79a7d59"
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        {
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          "bytes": 6795,
          "sha256": "358c219afb2ca0acd290c83341746627d419f5fc9a5f95c9cbc0740cc9f8f397"
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    {
      "id": "H0",
      "requirement": "参考优化适用性",
      "status": "部分完成",
      "finding_and_remaining": "已做本地源码映射；所列外部PR/RFC状态及本地提交祖先关系已追加核验，完整编译融合及transport运行关联仍缺。",
      "evidence": [
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        },
        {
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          "sha256": "f8fa4ee765e9205ea02e234068fbd1158fa7099bfd7f909fec8b645e6a8bfba6"
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    },
    {
      "id": "H1",
      "requirement": "Attention与通信布局消融",
      "status": "未完成",
      "finding_and_remaining": "独立后端回放不能替代通信布局的单变量A/B。",
      "evidence": [
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          "bytes": 8194,
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    {
      "id": "H2",
      "requirement": "DiT融合与局部数据构造消融",
      "status": "未完成",
      "finding_and_remaining": "尚无通过数值门槛的融合增量收益验证。",
      "evidence": [
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          "bytes": 8194,
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    {
      "id": "H3",
      "requirement": "解码算子与空间并行消融",
      "status": "未完成",
      "finding_and_remaining": "新增含全部转换成本的局部布局A/B：数值逐值一致但慢约22.42%；仅单输入局部反证，完整解码优化消融仍缺。 新增时间维卷积全成本布局A/B同样逐值一致但慢14.82%；布局转换51.9%时间占比未直接转化为收益。",
      "evidence": [
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    {
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      "requirement": "输出与传输优化",
      "status": "未完成",
      "finding_and_remaining": "已有uint8路径与交接计时，尚无受控输出优化及编码后媒体验收。 已补充六阶段生产者/消费者表：冻结路径只回传元数据，不含像素IPC；CPU-ready不能替代编码或客户端交付。输出融合真实输入补采已提交，尚未验收。 新增固定FFV1无损CPU编码往返，3份视频和351帧逐字节审核通过；仍非模型服务集成、像素IPC或有损质量验收。 交接终态：输出补采与局部融合A/B已完成；40模型输出、20输入转换与775边界字节一致，D2H-inclusive局部耗时降低23.76%/31.84%；未集成模型。用户要求停止新增实验并交接。",
      "evidence": [
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      "id": "H5",
      "requirement": "流水线重叠、背压与取消",
      "status": "未完成",
      "finding_and_remaining": "时间线重叠不等于优化收益；慢消费者、取消和组合调度验收尚缺。",
      "evidence": [
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    {
      "id": "TAIL",
      "requirement": "重复运行与尾延迟",
      "status": "部分完成",
      "finding_and_remaining": "两分辨率各3次、每次1000间隔；新增连续会话块重采样显示部分P99区间敏感，数值控制与未来稳定性仍未完成。",
      "evidence": [
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    {
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      "requirement": "数值可重复性与候选门槛",
      "status": "部分完成",
      "finding_and_remaining": "eager两次40份输出逐位一致；两种编译模式重复及cuDNN候选均失败，原因未最终定位。 新参考与历史40份逐值一致；原版和候选两条轨迹各160次同输入比较及FP64抽样通过，诊断最终输出各40份与对应未插桩运行逐值一致。跨轨迹Q从第2次出现差异，仍缺完整逐层因果证明。 新增分步诊断：default编译模式（无CUDA Graph）两次启动0/40通过；reduce-overhead加库级确定性控制（cuBLAS工作区、cuDNN确定性、use_deterministic_algorithms）两次启动40/40通过、40/40逐位一致：跨启动差异定位为库级非确定性而非编译/Graph。单一控制拆分与性能代价计时排队中。",
      "evidence": [
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    {
      "id": "RAW",
      "requirement": "全量原始数据与复现",
      "status": "部分完成",
      "finding_and_remaining": "已存在文件有索引、源快照与复算脚本；长尾后续轮次未保存完整输出，无法补回。",
      "evidence": [
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    {
      "id": "WEB",
      "requirement": "首轮报告与证据访问",
      "status": "首版已交付／持续更新",
      "finding_and_remaining": "中文报告及看板已发布，82个报告内资源链接通过内容核对；不代表完整计划完成。",
      "evidence": [
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          "bytes": 39245,
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}