{
  "engine": "lightningdb",
  "github": "https://github.com/conwayek/GraphDB",
  "neo4j_gpu": false,
  "lightning_gpu": "enterprise-retrieve-only",
  "host": "NVIDIA L40S, seed 42",
  "graphrag": {
    "query": "GPU-or-CPU cosine k=10 papers, then CPU undirected 3-hop subgraph",
    "neo4j_query": "db.index.vector.queryNodes + MATCH (s)-[*0..3]-(x)",
    "budget_ms": 15,
    "rows": [
      {
        "corpus": "20k people / 8k papers",
        "lightning_cpu_ms": null,
        "lightning_gpu_ms": 0.86,
        "neo4j_ms": 9.27,
        "subgraph_nodes": 4300
      },
      {
        "corpus": "2M people / 500k papers",
        "lightning_cpu_ms": 9.18,
        "lightning_gpu_ms": 6.48,
        "neo4j_ms": 12.12,
        "subgraph_nodes": 4200
      }
    ]
  },
  "dim_ladder": {
    "n": 250000,
    "k": 10,
    "query": "exact cosine every row, keep k=10 (no ANN)",
    "neo4j_query": "MATCH + vector.similarity.cosine + ORDER BY DESC LIMIT k",
    "rows": [
      {"dim": 32, "lightning_cpu_ms": 12.03, "lightning_gpu_ms": 2.65, "host_topk_ms": 2.52, "neo4j_ms": 559},
      {"dim": 256, "lightning_cpu_ms": 10.73, "lightning_gpu_ms": 3.74, "host_topk_ms": 2.54, "neo4j_ms": 3888},
      {"dim": 384, "lightning_cpu_ms": 11.48, "lightning_gpu_ms": 4.25, "host_topk_ms": 2.55, "neo4j_ms": 4252},
      {"dim": 768, "lightning_cpu_ms": 14.40, "lightning_gpu_ms": 6.02, "host_topk_ms": 2.54, "neo4j_ms": 8648},
      {"dim": 1024, "lightning_cpu_ms": 15.36, "lightning_gpu_ms": 7.37, "host_topk_ms": 2.51, "neo4j_ms": 14562},
      {"dim": 1536, "lightning_cpu_ms": 27.67, "lightning_gpu_ms": 9.48, "host_topk_ms": 2.51, "neo4j_ms": 17343}
    ]
  },
  "load": {
    "endpoint": "POST /v1/rag",
    "concurrency": 128,
    "requests": 2048,
    "ok": 2048,
    "overloaded_503": 0,
    "dropped": 0,
    "rps": 629
  },
  "reproduce": {
    "cpu": "bash scripts/proof_community.sh",
    "gpu": "GPU=1 LICENSE_FILE=data/enterprise.license bash scripts/proof_community.sh",
    "wiki_cpu": "PUBLIC=wiki bash scripts/proof_community.sh",
    "wiki_gpu": "GPU=1 LICENSE_FILE=data/enterprise.license PUBLIC=wiki bash scripts/proof_community.sh",
    "wiki_smoke": "PUBLIC=wiki-vote bash scripts/proof_community.sh"
  }
}