{
  "generated": "2026-11-01T01:37:38",
  "note": "Live inventory of 2026-11-01; aliases are cluster names, no addresses or serials. Unreachable aliases are listed but unused.",
  "laptop": {
    "role": "development laptop (not on the cluster LAN)",
    "chip": "Apple M5 Max",
    "ram_gb": 48,
    "macos": "27.0",
    "gpu_cores": 40,
    "cpu_cores": 18,
    "ssd_random_3p4MB_GBps_cold": 8.5,
    "ssd_seq_GBps_cold": 11.5,
    "ssd_source": "benchmarks/raw/gateA/ssd/laptop-M5Max.json"
  },
  "cluster_nodes": {
    "M1M32": {
      "status": "reachable",
      "chip": "Apple M1 Max",
      "ram_gb": 32,
      "macos": "26.5.1",
      "gpu_cores": 24,
      "disk_free_gb": 208,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,52 1,31 1,21 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [],
      "uv": true,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": "Apple metal version 32023.883 (metalfe-32023.883)",
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M2M32": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "M2M32b": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "M2M32c": {
      "status": "reachable",
      "chip": "Apple M2 Max",
      "ram_gb": 32,
      "macos": "26.5.1",
      "gpu_cores": 30,
      "disk_free_gb": 417,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,66 1,22 1,12 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M2U64": {
      "status": "reachable",
      "chip": "Apple M2 Ultra",
      "ram_gb": 64,
      "macos": "26.5",
      "gpu_cores": 60,
      "disk_free_gb": 308,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,04 1,13 1,14 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M3BA16": {
      "status": "reachable",
      "chip": "Apple M3",
      "ram_gb": 16,
      "macos": "26.5.1",
      "gpu_cores": 10,
      "disk_free_gb": 409,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,27 1,26 1,27 }",
      "en0_media": "autoselect",
      "homebrew_pythons": [],
      "uv": false,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M3BA24": {
      "status": "reachable",
      "chip": "Apple M3",
      "ram_gb": 24,
      "macos": "26.5.1",
      "gpu_cores": 10,
      "disk_free_gb": 420,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,31 1,25 1,23 }",
      "en0_media": "autoselect",
      "homebrew_pythons": [],
      "uv": false,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M3U96a": {
      "status": "reachable",
      "chip": "Apple M3 Ultra",
      "ram_gb": 96,
      "macos": "26.6",
      "gpu_cores": 60,
      "disk_free_gb": 512,
      "system_python": "3.14.5",
      "mlx_preinstalled": true,
      "load_avg_at_probe": "{ 1,43 1,63 1,64 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": "Apple metal version 32023.883 (metalfe-32023.883)",
      "rdma_ctl_present": true,
      "iperf3": true
    },
    "M3U96b": {
      "status": "reachable",
      "chip": "Apple M3 Ultra",
      "ram_gb": 96,
      "macos": "26.4",
      "gpu_cores": 60,
      "disk_free_gb": 432,
      "system_python": "3.14.4",
      "mlx_preinstalled": true,
      "load_avg_at_probe": "{ 1,93 1,92 1,93 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": true
    },
    "M4BP36": {
      "status": "reachable",
      "chip": "Apple M4 Max",
      "ram_gb": 36,
      "macos": "26.5.1",
      "gpu_cores": 32,
      "disk_free_gb": 843,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,08 1,13 1,16 }",
      "en0_media": "autoselect",
      "homebrew_pythons": [],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M4BP48": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "M4M36": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "M4M64a": {
      "status": "reachable",
      "chip": "Apple M4 Max",
      "ram_gb": 64,
      "macos": "26.5.1",
      "gpu_cores": 40,
      "disk_free_gb": 730,
      "system_python": "3.14.4",
      "mlx_preinstalled": true,
      "load_avg_at_probe": "{ 1,88 2,01 1,78 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": true
    },
    "M4M64b": {
      "status": "reachable",
      "chip": "Apple M4 Max",
      "ram_gb": 64,
      "macos": "26.5.1",
      "gpu_cores": 40,
      "disk_free_gb": 83,
      "system_python": "3.14.4",
      "mlx_preinstalled": true,
      "load_avg_at_probe": "{ 1,39 1,40 1,41 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": false,
      "xcode": "/Applications/Xcode.app/Contents/Developer",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": true
    },
    "M4M64c": {
      "status": "reachable",
      "chip": "Apple M4 Max",
      "ram_gb": 64,
      "macos": "26.4",
      "gpu_cores": 40,
      "disk_free_gb": 321,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,63 1,73 1,75 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "M5M36": {
      "status": "reachable",
      "chip": "Apple M5 Max",
      "ram_gb": 36,
      "macos": "27.0",
      "gpu_cores": 32,
      "disk_free_gb": 355,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 2,52 2,53 2,41 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m2m16": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "m2m8a": {
      "status": "reachable",
      "chip": "Apple M2",
      "ram_gb": 8,
      "macos": "26.5.1",
      "gpu_cores": 10,
      "disk_free_gb": 424,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,69 1,63 1,57 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [],
      "uv": false,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m2m8b": {
      "status": "reachable",
      "chip": "Apple M2",
      "ram_gb": 8,
      "macos": "26.5.1",
      "gpu_cores": 10,
      "disk_free_gb": 195,
      "system_python": null,
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 2,12 1,54 1,45 }",
      "en0_media": "autoselect (1000baseT <full-duplex,flow-control>)",
      "homebrew_pythons": [],
      "uv": false,
      "xcode": "",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m4ma": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "m4mb": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "m4mc": {
      "status": "unreachable (SSH timeout 2026-11-01)"
    },
    "m4md": {
      "status": "reachable",
      "chip": "Apple M4",
      "ram_gb": 16,
      "macos": "26.6.2",
      "gpu_cores": 10,
      "disk_free_gb": 195,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,25 1,34 1,37 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m4ml": {
      "status": "reachable",
      "chip": "Apple M4",
      "ram_gb": 16,
      "macos": "26.7",
      "gpu_cores": 10,
      "disk_free_gb": 178,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,47 1,45 1,45 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m4mm": {
      "status": "reachable",
      "chip": "Apple M4 Pro",
      "ram_gb": 48,
      "macos": "26.5.1",
      "gpu_cores": 16,
      "disk_free_gb": 375,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,26 1,38 1,39 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m4mn": {
      "status": "reachable",
      "chip": "Apple M4 Pro",
      "ram_gb": 48,
      "macos": "26.5.1",
      "gpu_cores": 16,
      "disk_free_gb": 367,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,11 1,27 1,35 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m5ma": {
      "status": "reachable",
      "chip": "Apple M5 Pro",
      "ram_gb": 24,
      "macos": "27.0",
      "gpu_cores": 16,
      "disk_free_gb": 382,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 2,66 2,58 2,53 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m6ma": {
      "status": "reachable",
      "chip": "Apple M6",
      "ram_gb": 24,
      "macos": "27.0",
      "gpu_cores": 12,
      "disk_free_gb": 396,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 2,45 2,45 2,42 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    },
    "m6mb": {
      "status": "reachable",
      "chip": "Apple M6",
      "ram_gb": 24,
      "macos": "27.0",
      "gpu_cores": 12,
      "disk_free_gb": 394,
      "system_python": "3.9.6",
      "mlx_preinstalled": false,
      "load_avg_at_probe": "{ 1,99 2,24 2,27 }",
      "en0_media": "autoselect (1000baseT <full-duplex>)",
      "homebrew_pythons": [
        "/opt/homebrew/bin/python3.13",
        "/opt/homebrew/bin/python3.14"
      ],
      "uv": true,
      "xcode": "/Library/Developer/CommandLineTools",
      "metal_compiler": null,
      "rdma_ctl_present": true,
      "iperf3": false
    }
  },
  "network": {
    "lan": "1 GbE switch (all nodes negotiate 1000baseT on en0)",
    "thunderbolt": "no active Thunderbolt link between any two nodes at probe time (RDMA/JACCL blocked pending cabling)",
    "rtt_ms": [
      {
        "from": "M3U96a",
        "to": "lan-host-85",
        "min": 0.596,
        "avg": 0.732,
        "max": 1.0
      },
      {
        "from": "M3U96a",
        "to": "lan-host-61",
        "min": 0.367,
        "avg": 0.572,
        "max": 1.179
      },
      {
        "from": "M3U96a",
        "to": "lan-host-70",
        "min": 0.529,
        "avg": 0.634,
        "max": 0.865
      },
      {
        "from": "M3U96a",
        "to": "lan-host-77",
        "min": 0.357,
        "avg": 0.53,
        "max": 0.741
      },
      {
        "from": "M3U96a",
        "to": "lan-host-103",
        "min": 0.623,
        "avg": 0.742,
        "max": 1.216
      },
      {
        "from": "M3U96a",
        "to": "lan-host-104",
        "min": 0.583,
        "avg": 0.789,
        "max": 1.446
      },
      {
        "from": "M3U96a",
        "to": "lan-host-92",
        "min": 0.582,
        "avg": 0.771,
        "max": 1.318
      },
      {
        "from": "M3U96a",
        "to": "lan-host-93",
        "min": 0.6,
        "avg": 1.021,
        "max": 1.187
      },
      {
        "from": "M3U96a",
        "to": "lan-host-105",
        "min": 0.53,
        "avg": 0.741,
        "max": 0.905
      },
      {
        "from": "M3U96a",
        "to": "lan-host-106",
        "min": 0.571,
        "avg": 0.766,
        "max": 1.275
      },
      {
        "from": "M3U96a",
        "to": "lan-host-112",
        "min": 0.593,
        "avg": 0.786,
        "max": 1.431
      },
      {
        "from": "M3U96a",
        "to": "lan-host-72",
        "min": 0.393,
        "avg": 0.577,
        "max": 0.872
      },
      {
        "from": "M3U96a",
        "to": "lan-host-76",
        "min": 0.538,
        "avg": 0.762,
        "max": 1.287
      },
      {
        "from": "M3U96a",
        "to": "lan-host-62",
        "min": 0.468,
        "avg": 0.694,
        "max": 1.189
      },
      {
        "from": "M3U96a",
        "to": "lan-host-63",
        "min": 0.54,
        "avg": 0.657,
        "max": 1.317
      },
      {
        "from": "M3U96a",
        "to": "lan-host-66",
        "min": 0.455,
        "avg": 0.618,
        "max": 1.019
      },
      {
        "from": "M3U96a",
        "to": "lan-host-68",
        "min": 0.487,
        "avg": 0.667,
        "max": 1.29
      },
      {
        "from": "M4M64a",
        "to": "M3U96b",
        "min": 0.726,
        "avg": 0.869,
        "max": 1.328
      },
      {
        "from": "M4M64a",
        "to": "M2U64",
        "min": 0.598,
        "avg": 0.69,
        "max": 0.862
      }
    ],
    "thunderbolt_active_links": {
      "M3U96a": false,
      "M3U96b": false,
      "M4M64a": false,
      "M2U64": false,
      "M4M64c": false,
      "M5M36": false
    },
    "iperf3_gbits": [
      {
        "from": "M3U96a",
        "to": "M3U96b",
        "sent": 0.945,
        "recv": 0.94
      },
      {
        "from": "M3U96a",
        "to": "M4M64a",
        "sent": 0.947,
        "recv": 0.941
      },
      {
        "from": "M3U96a",
        "to": "M2U64",
        "sent": 0.945,
        "recv": 0.94
      },
      {
        "from": "M3U96a",
        "to": "M4M64c",
        "sent": 0.946,
        "recv": 0.94
      },
      {
        "from": "M3U96a",
        "to": "M3U96b",
        "sent": 0.945,
        "recv": 0.94
      }
    ]
  },
  "software": {
    "mlx_venv": "0.32.4",
    "mlx_lm_venv": "0.32.2",
    "python_venv": "3.12",
    "third_party_commits": {
      "colibri": "0a5504a1dc64f86fcd0fe7db298b0448c730e7e6",
      "mlx": "bd63d3803008edda03ce74080955d9879e2ef1eb",
      "mlx-lm": "736ab0d8c1d0edc79c3d798044fe6904e2fa23be",
      "llama.cpp": "a91eab67d8389d979d29fdf6633b2edd0718eb4b"
    }
  }
}