{
  "benchmark": "DXA immutable GPU snapshot row packing",
  "environment": {
    "runtime": "native Linux C++17 pthreads",
    "compiler": "g++ -O3 -std=c++17 -fexceptions -pthread -D__EMSCRIPTEN_PTHREADS__",
    "cpuAffinityCount": 5,
    "nodeAvailableParallelism": 4
  },
  "method": "Each dataset prepares one serial topology then alternates original and parallel snapshot packing three times per 1/2/4 thread setting. Every vertex, tetrahedron, edge, and transition array is compared byte-for-byte with memcmp against first original export. Native input/geometry construction and JavaScript copies/GPU upload are outside export timing. Cancellation/recovery tested separately.",
  "datasets": [
    {
      "name": "fe",
      "source": "examples/Fe_disloc_loop.dump",
      "realReplication": [
        1,
        1,
        1
      ],
      "allSnapshotsByteIdentical": true,
      "summary": [
        {
          "threads": 1,
          "originalMedianMs": 246.501,
          "parallelMedianMs": 249.056,
          "gainPercent": -1.0365069512902612
        },
        {
          "threads": 2,
          "originalMedianMs": 272.528,
          "parallelMedianMs": 179.259,
          "gainPercent": 34.223639405859224
        },
        {
          "threads": 4,
          "originalMedianMs": 257.873,
          "parallelMedianMs": 150.556,
          "gainPercent": 41.61622193870625
        }
      ],
      "runs": [
        {
          "threads": 1,
          "parallel": 0,
          "run": 0,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 246.501,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 1,
          "run": 1,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 300.929,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 0,
          "run": 2,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 295.752,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 1,
          "run": 3,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 247.105,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 0,
          "run": 4,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 242.164,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 1,
          "run": 5,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 249.056,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 0,
          "run": 0,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 247.714,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 1,
          "run": 1,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 179.259,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 0,
          "run": 2,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 288.414,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 1,
          "run": 3,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 211.683,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 0,
          "run": 4,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 272.528,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 1,
          "run": 5,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 174.762,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 0,
          "run": 0,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 257.873,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 1,
          "run": 1,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 134.368,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 0,
          "run": 2,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 289.762,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 1,
          "run": 3,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 150.556,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 0,
          "run": 4,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 253.509,
          "exactArrayParity": true
        },
        {
          "threads": 4,
          "parallel": 1,
          "run": 5,
          "atoms": 60229,
          "tets": 760983,
          "edges": 421604,
          "vertices": 126334,
          "snapshotBytes": 65226416,
          "exportMs": 156.123,
          "exactArrayParity": true
        }
      ]
    },
    {
      "name": "nigb",
      "source": "examples/NiGB_minimized.cfg",
      "realReplication": [
        1,
        1,
        2
      ],
      "allSnapshotsByteIdentical": true,
      "summary": [
        {
          "threads": 1,
          "originalMedianMs": 2958.75,
          "parallelMedianMs": 2817.29,
          "gainPercent": 4.781073088297424
        },
        {
          "threads": 2,
          "originalMedianMs": 2639.97,
          "parallelMedianMs": 1780.18,
          "gainPercent": 32.56817312317942
        },
        {
          "threads": 4,
          "originalMedianMs": 2668.75,
          "parallelMedianMs": 1300.94,
          "gainPercent": 51.252833723653396
        }
      ],
      "runs": [
        {
          "threads": 1,
          "parallel": 0,
          "run": 0,
          "atoms": 259808,
          "tets": 5162144,
          "edges": 1820319,
          "vertices": 857324,
          "snapshotBytes": 409203360,
          "exportMs": 2465.78,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 1,
          "run": 1,
          "atoms": 259808,
          "tets": 5162144,
          "edges": 1820319,
          "vertices": 857324,
          "snapshotBytes": 409203360,
          "exportMs": 2803.5,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 0,
          "run": 2,
          "atoms": 259808,
          "tets": 5162144,
          "edges": 1820319,
          "vertices": 857324,
          "snapshotBytes": 409203360,
          "exportMs": 3006.57,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 1,
          "run": 3,
          "atoms": 259808,
          "tets": 5162144,
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          "snapshotBytes": 409203360,
          "exportMs": 2817.29,
          "exactArrayParity": true
        },
        {
          "threads": 1,
          "parallel": 0,
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          "atoms": 259808,
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          "exportMs": 2958.75,
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        },
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          "snapshotBytes": 409203360,
          "exportMs": 3081.49,
          "exactArrayParity": true
        },
        {
          "threads": 2,
          "parallel": 0,
          "run": 0,
          "atoms": 259808,
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        {
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        },
        {
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          "exactArrayParity": true
        }
      ]
    }
  ],
  "baselineRevision": "d6f9010fc955e402c5d6503e40f09124cf70800b",
  "cancellationTest": {
    "canceledDuringParallelTetrahedronPacking": true,
    "joinedWorkersAndClearedSnapshot": true,
    "retainedTopologyRetryByteExact": true
  }
}