{
  "device": "NVIDIA GB10",
  "compute_capability": "SM121",
  "workload": {
    "resolution": [1344, 768],
    "frames": 124,
    "packed_tokens": 37810,
    "block": 24,
    "attention": "sage2",
    "seed": 440420
  },
  "capture": {
    "tool": "Nsight Systems 2025.3.2",
    "scope": "one warmed H3 block between cudaProfilerStart and cudaProfilerStop",
    "fused_elementwise": true,
    "runtime_kernel_launches": 53,
    "cudaLaunchKernel_calls": 45,
    "cuLaunchKernelEx_calls": 8
  },
  "component1_residual": {
    "modulation_launches": 2,
    "modulation_total_ms": 9.5432,
    "gate_add_launches": 2,
    "gate_add_total_ms": 10.936032,
    "unfused_modulation_gate_or_add_launches": 0,
    "conclusion": "The four fused kernels perform substantial tensor traffic and are not launch-bound. Eliminate that traffic only at adjacent NVFP4 boundaries."
  },
  "nvfp4": {
    "launches": 32,
    "gemm_launches": 4,
    "gemm_total_ms": 162.339136,
    "activation_pack_launches": 4,
    "activation_pack_total_ms": 13.121248,
    "absmax_partial_launches": 4,
    "absmax_partial_total_ms": 10.767616,
    "scale_finalize_launches": 4,
    "scale_finalize_total_ms": 0.013536,
    "block_scale_zero_launches": 4,
    "block_scale_zero_total_ms": 0.292992,
    "small_scale_conversion_launches": 12,
    "intermediate_materialization_bytes_across_four_projections": 7732981760,
    "conclusion": "Scale discovery, activation packing, buffer initialization, GEMM, and output allocation remain separate. The global scale dependency requires an explicit synchronization design in any exact fused implementation."
  },
  "other_boundaries": {
    "qkv_and_attention_layout_copy_launches": 4,
    "qkv_and_attention_layout_copy_total_ms": 105.83168,
    "swiglu_silu_total_ms": 9.390784,
    "swiglu_multiply_total_ms": 14.38736
  },
  "native_pack_validation": {
    "initial_finding": "The previous width-specific block-scale swizzle failed for the 7168-feature attention output projection while QDATA remained exact.",
    "fix": "Replaced width-specific indexing with the general 128-row by 4-scale-column tiled offset.",
    "validated_feature_widths": [5376, 7168, 14336],
    "qdata_difference_count": 0,
    "block_scale_difference_count": 0,
    "linear_output_max_abs_difference": 0.0,
    "deployment_decision": "Do not enable the standalone native packer for performance; it is not consistently faster than Comfy packing. Use it as exact infrastructure for the fused prototype."
  },
  "validation": {
    "deployed_tests": "33 passed",
    "new_regression": "Comfy packed QDATA and block-scale identity at feature widths 5376, 7168, and 14336"
  },
  "source_artifacts": [
    "benchmarks/gb10-nvfp4-component2-profile-1344x768-124f-seed440420.json",
    "benchmarks/gb10-nvfp4-pack-parity-component2-fixed-1344x768-124f-seed440420.json",
    "benchmarks/gb10-nvfp4-native-fixed-component2-1344x768-124f-seed440420.json",
    "benchmarks/gb10-fused-block-residual-profile-component2-1344x768-124f-seed440420.json"
  ]
}