{
 "date": "2026-10-21",
 "change": "source_collect(view=True): with one FFN rank in one NVLink domain (rank layout) the Attention result is a strided view of combine inbox region 0 and the reduce epilogue is skipped; the source dispatch zeroes unrouted tokens' rows",
 "commit": "783009f",
 "native_source_sha256": "8205d02bfc622ba98c680c977d8cfef4e47f9394afea26fc5828d29e3589b879",
 "afd_basis": "With one FFN rank each Attention token has exactly one reply row, already its final sum; only that FFN writes the Attention inbox, and it writes exchange N+1 only after the source's next dispatch. Symmetric EP with two or more ranks always reduces several partials.",
 "screens": {
  "note": "tree 89568785 (the view change on 05c550b, before the GIN route-check commit, which does not touch the direct NVLink path); pokprod 4 x H100; 3 fresh-process repeats; arms view (AFDEP_BENCH_COLLECT_VIEW=1), copy, Masked",
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    "3",
    "--tokens",
    "1",
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    "128",
    "512",
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    "--warmup",
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    "200",
    "--blocks",
    "2"
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 },
 "correctness": {
  "topology": "pokprod 4 x NVIDIA H100 80GB HBM3",
  "result": "on native digest 8205d02b: GPU matrix 10/10, invalid-route 8/8, 3A:1F and 1A:3F small/large, and the view at 3A:1F (4 GPUs) and 2A1F (3 GPUs), BF16/FP8, small/large",
  "summary": [
   "bf16-direct-small exit=0 bf16-hybrid-small exit=0 bf16-generic-control exit=0 bf16-off-large exit=0 bf16-on-large exit=0 fp8-direct-small exit=0 fp8-hybrid-small exit=0 fp8-generic-control exit=0 fp8-off-large exit=0 fp8-on-large exit=0 invalid-eager-dummy exit=1 assertion=yes invalid-eager-duplicate exit=1 assertion=yes invalid-eager-negative exit=1 assertion=yes invalid-eager-wide exit=1 assertion=yes invalid-graph-dummy exit=1 assertion=yes invalid-graph-duplicate exit=1 assertion=yes invalid-graph-negative exit=1 assertion=yes invalid-graph-wide exit=1 assertion=yes done ",
   "f1-small exit=0",
   "f1-large exit=0",
   "f3-small exit=0",
   "f3-large exit=0",
   "view-n4-bf16-small exit=0",
   "view-n4-bf16-large exit=0",
   "view-n4-fp8-small exit=0",
   "view-n4-fp8-large exit=0",
   "view-n3-bf16-small exit=0",
   "view-n3-bf16-large exit=0",
   "view-n3-fp8-small exit=0",
   "view-n3-fp8-large exit=0"
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    "pod": "afdep-v21-h100-c",
    "log": "f1-large.log",
    "log_sha256": "cf3f60bc462b20f4e4f28f344ce96457c71444da37b8d2aca92f113448475c7b"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "f1-small.log",
    "log_sha256": "c8681009edbe0ccefe83fb76c819ad9d4175e9e8858032c345f15107b0a876e7"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "f3-large.log",
    "log_sha256": "d12f554c5f6f0262a23486a0cca949c738b5287eb4eb237bc457657ef8336ada"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "f3-small.log",
    "log_sha256": "1668b97d179f92febe712e2e708b12088a309ee82c5153db35015324f89acf7c"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "fp8-direct-small.log",
    "log_sha256": "aab1b759ccece5d6d1b3b8ea2fb47c83a2fca4ceafeaedea75b9acf3e369c826"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "fp8-generic-control.log",
    "log_sha256": "0ec3d7596a0e1bd27db48a41dd032678bf165c1287a8e160590ac626f4b66296"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "fp8-hybrid-small.log",
    "log_sha256": "82f8cfc6dcb36473e80f81fe99fee9ea39ad4727e12440ea099bb7fbf4e391f2"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "fp8-off-large.log",
    "log_sha256": "e140990c819d2e8c6ecfdad712b237c628823f834399ad5c5dc548bd06e1d44c"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "fp8-on-large.log",
    "log_sha256": "e9929119f584cfb1f2b750396650886957e0b8672bf379b05fd3f808f3c93f40"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-eager-dummy.log",
    "log_sha256": "058631e89d1a91c281fa2fe29778606fe69104ee50c625d4dbbe64226f6870e0"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-eager-duplicate.log",
    "log_sha256": "5d523f6e44aeedb87a98dd361fadbd1eeb905d6add4352c10f0fd3550378396d"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-eager-negative.log",
    "log_sha256": "e8f344ed00976309abe62fafc5b3e05a0cb3cf9449f5324798d5aaa7a69965ec"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-eager-wide.log",
    "log_sha256": "f813422c367e4abded69ade68cba7b08c4d8c162982544e59c1797dfe6c424bb"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-graph-dummy.log",
    "log_sha256": "b2c188caec5e33e797a3a5d4b30be3f9405607423103c2b6f782b88d1803d48f"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-graph-duplicate.log",
    "log_sha256": "deba2210f92ab988e18110502a1f7e483682c424536c2806c64827a01e2b276f"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-graph-negative.log",
    "log_sha256": "e31929a05d5757a4472bc82d5f4d7bb918c654b54e9addd025f57f7b620644a1"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "invalid-graph-wide.log",
    "log_sha256": "75aaf0c314cfd91712e38d4626ef046119e77a2a040a87d59205124285b4c3eb"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n3-bf16-large.log",
    "log_sha256": "b9655d9cebe2e73a6c3a55cb89fd607169508a5fe4f73644f6ede39291280e35"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n3-bf16-small.log",
    "log_sha256": "29c078be938bf1b766f2842088939435d8a25f1899f562be817b9a95716a66b1"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n3-fp8-large.log",
    "log_sha256": "f8ea1f04a19a43b09a10f83d94e5bfb7bbcd4a0d8ec3a9c573f516a8e8fe1efc"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n3-fp8-small.log",
    "log_sha256": "8966a01dd421c8f2dbbf67595f92c205a5fd8c695440d3e2f23fea91ae94cd5d"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n4-bf16-large.log",
    "log_sha256": "cf3f60bc462b20f4e4f28f344ce96457c71444da37b8d2aca92f113448475c7b"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n4-bf16-small.log",
    "log_sha256": "c8681009edbe0ccefe83fb76c819ad9d4175e9e8858032c345f15107b0a876e7"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n4-fp8-large.log",
    "log_sha256": "c2ecbe40a08bcb2ae365ad6f579faec199dc4c686d7367cba45b8a3fc3104426"
   },
   {
    "pod": "afdep-v21-h100-c",
    "log": "view-n4-fp8-small.log",
    "log_sha256": "89719f31a5ed4c1e700388d7173098e6771fca84a48418f462319cb6976d8ff4"
   }
  ]
 },
 "contract": "docs/api.md: the view is read-only and valid until the next source_dispatch on the same Buffer is enqueued",
 "scope": "communication only; no serving claim",
 "cross_node_correctness": {
  "topology": "waldorf afdep-v21-xa, -xb, -xc (2 x H200 each, InfiniBand GIN)",
  "native_source_sha256": "8205d02bfc622ba98c680c977d8cfef4e47f9394afea26fc5828d29e3589b879",
  "result": "two-node matrix 14/14 (BF16/FP8 hybrid and direct small/large, generic control, 1A:3F and 3A:1F hybrid small/large); three pods with two FFN domains and with two Attention domains, BF16/FP8 large and BF16 small; direct-path invalid dummy route stops at afdep_roles.cuh:89 eager and graph",
  "summary": [
   "bf16-hyb-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  bf16-hyb-large: afdep-v21-xb exit=0 afdep-v21-xa exit=0  bf16-direct-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  bf16-direct-large: afdep-v21-xb exit=0 afdep-v21-xa exit=0  bf16-generic: afdep-v21-xb exit=0 afdep-v21-xa exit=0  fp8-hyb-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  fp8-hyb-large: afdep-v21-xb exit=0 afdep-v21-xa exit=0  fp8-direct-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  fp8-direct-large: afdep-v21-xb exit=0 afdep-v21-xa exit=0  fp8-generic: afdep-v21-xb exit=0 afdep-v21-xa exit=0  f1-hyb-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  f3-hyb-small: afdep-v21-xb exit=0 afdep-v21-xa exit=0  f1-hyb-large: afdep-v21-xb exit=0 afdep-v21-xa exit=0  f3-hyb-large: afdep-v21-xa exit=0 afdep-v21-xb exit=0  done ",
   "f2dom-large-bf16: afdep-v21-xa exit=0 afdep-v21-xb exit=0 afdep-v21-xc exit=0 ",
   "a2dom-large-bf16: afdep-v21-xb exit=0 afdep-v21-xc exit=0 afdep-v21-xa exit=0 ",
   "f2dom-large-fp8: afdep-v21-xb exit=0 afdep-v21-xa exit=0 afdep-v21-xc exit=0 ",
   "a2dom-large-fp8: afdep-v21-xa exit=0 afdep-v21-xc exit=0 afdep-v21-xb exit=0 ",
   "f2dom-small-bf16: afdep-v21-xa exit=0 afdep-v21-xb exit=0 afdep-v21-xc exit=0 ",
   "a2dom-small-bf16: afdep-v21-xa exit=0 afdep-v21-xb exit=0 afdep-v21-xc exit=0 ",
   "inv-direct-eager-dummy: afdep-v21-xb exit=1 afdep-v21-xa exit=1 ",
   "inv-direct-graph-dummy: afdep-v21-xb exit=1 afdep-v21-xa exit=1 "
  ],
  "logs": [
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-bf16-direct-large-n0.log",
    "log_sha256": "83e5c2803c55429098a76057d4bb379ed3bf4756da24ce86bd904b011c9bf660"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-bf16-direct-small-n0.log",
    "log_sha256": "e94f40ecd84cfd63153ac5c0219c1d864b259790222c0484941de02aaba55de1"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-bf16-generic-n0.log",
    "log_sha256": "d0f6dd5e5d04965c9e0824b34f894261d24df458e306405dbcdbe295a7c22073"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-bf16-hyb-large-n0.log",
    "log_sha256": "e246bc5259385dd4dc9ad01f0e57e636dc7889b948b6a872b4bf0da21ceff425"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-bf16-hyb-small-n0.log",
    "log_sha256": "d6dc863b909dc827e65d016a3f12d88cc65b496d6d61c06829d45129d027a52a"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-f1-hyb-large-n0.log",
    "log_sha256": "4ce1e7172d0ad4553e12c9af0b922602a2991b8a20a111e4d83595273d0b61f3"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-f1-hyb-small-n0.log",
    "log_sha256": "6bcdf045265cc7043fd94b1e419a81e7c43160bdf9735236ecc9740f6be1d83e"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-f3-hyb-large-n0.log",
    "log_sha256": "9777317877f3fecc8e57034edde65fba4568cb66a186d32d3e18979bfcab7f2f"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-f3-hyb-small-n0.log",
    "log_sha256": "1af315839775f72be1d8f0bc6d856ce6a1636b2a3a6a9813e0ebcc3250a5d8fc"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-fp8-direct-large-n0.log",
    "log_sha256": "70c9ef0ca8bdaa78df61c5cfa677e051fba96896f48c80a00e3d4b68962ef3c0"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-fp8-direct-small-n0.log",
    "log_sha256": "b7ec1843e08efe1777a2ec3d6a773eb0ae5f211e6487aa75281cc200d847b858"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-fp8-generic-n0.log",
    "log_sha256": "3770229dbea00cf7acd0b861e9ac31ac392a6d172d25d5ec5728da657bf99ec3"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-fp8-hyb-large-n0.log",
    "log_sha256": "379fcc50d0b1e4d73c5acbcf816da45f688ea73cce14ce623402fc22f2e558f8"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fnm-fp8-hyb-small-n0.log",
    "log_sha256": "044225a4ac6aa9c88f1997adf1e146d4fff7eb33bcdcff4d4cde7da74594da08"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-a2dom-large-bf16-n0.log",
    "log_sha256": "00d22b3c72356d8f9addd54251e2f852b69d033d03aef593de7e3660c060593b"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-a2dom-large-fp8-n0.log",
    "log_sha256": "6de8eae5d803fcfa6e442148420ce0f1c802daaa0eda2d3b55627e0aa0e83e12"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-a2dom-small-bf16-n0.log",
    "log_sha256": "b9862b1af903eb2b6f9ee3ce776cd777ad362a1ea122565a4123b8ba3239398b"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-f2dom-large-bf16-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-f2dom-large-fp8-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fn3-f2dom-small-bf16-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fninv-eager-n0.log",
    "log_sha256": "38036f17cdeeaa64f443b107d0c2fe22e63ba84d5245b5cdd52b1ad6e3e5ddab"
   },
   {
    "pod": "afdep-v21-xa",
    "log": "fninv-graph-n0.log",
    "log_sha256": "068298b126898a173064d0bec38c1dd1129201e583a4e242549fe9d8159637b4"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-bf16-direct-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-bf16-direct-small-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-bf16-generic-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-bf16-hyb-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-bf16-hyb-small-n1.log",
    "log_sha256": "3c90c467604518a78a516e5d5405110250f3fffb8d1452d82e201fe3bb8e30c6"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-f1-hyb-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-f1-hyb-small-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-f3-hyb-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-f3-hyb-small-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-fp8-direct-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-fp8-direct-small-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-fp8-generic-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-fp8-hyb-large-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fnm-fp8-hyb-small-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-a2dom-large-bf16-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-a2dom-large-fp8-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-a2dom-small-bf16-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-f2dom-large-bf16-n0.log",
    "log_sha256": "25b8382edbac8f2a512c7fb10a3a0a1b773af179fb22ce20ec024627a4345f78"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-f2dom-large-fp8-n0.log",
    "log_sha256": "4824bc23535f5f394c8e7515d112c8cc8bab756bc0ec8cbc92c186cd2a46bab6"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fn3-f2dom-small-bf16-n0.log",
    "log_sha256": "04f8031315fe62717ca41789e2b3c9b8ff21fb222188adec566760631151c18e"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fninv-eager-n1.log",
    "log_sha256": "aa3673483c1d949df4c478da8df315078fc7590d6c655693a46b06e4c394ad5e"
   },
   {
    "pod": "afdep-v21-xb",
    "log": "fninv-graph-n1.log",
    "log_sha256": "da39d04caf9eb8aaee1c489bfbf94ffca1f05b22298e49918583680aa60618e3"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-a2dom-large-bf16-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-a2dom-large-fp8-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-a2dom-small-bf16-n2.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-f2dom-large-bf16-n1.log",
    "log_sha256": "4e2945a1b23b292779bc6a14a66d99dd42485e6a63dadf7c57e6c8084573829a"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-f2dom-large-fp8-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   },
   {
    "pod": "afdep-v21-xc",
    "log": "fn3-f2dom-small-bf16-n1.log",
    "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   }
  ]
 }
}