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refactor(ep/v2): make TokOffExt public for out-of-op callers #708

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Merged
jhchouuu merged 1 commit into from
Sep 24, 2026
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refactor(ep/v2): make TokOffExt public for out-of-op callers #708

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6 changes: 3 additions & 3 deletions python/mori/ops/dispatch_combine_v2/hip_backend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ def scale_stride_bytes(scale_bytes: int) -> int:
_XDB_FLAG_SLOTS = 256


class _TokOffExt:
class TokOffExt:
"""Dispatch's slot allocator word outside the cco window (default-on gfx1250; MORI_EP_TOKOFF_EXT=0 opts out).

One int per rank in hipExtMallocWithFlags(hipDeviceMallocUncached) memory,
Expand Down Expand Up @@ -322,7 +322,7 @@ def _build(self, cfg, comm):
self.routing_dest_map = torch.full_like(self.token_dest_map, self._null_flat)
self.dest_pe_counter = torch.zeros(cfg.world_size, **i32)
# Dispatch's slot allocator word lives in IPC-shared hipExtMallocWithFlags
# memory instead of the cco window (see _TokOffExt): the cco-window slot
# memory instead of the cco window (see TokOffExt): the cco-window slot
# atomic serializes on newer fw/KMD stacks. gfx1250 intranode only -- the
# only kernel that reads tokOffPeers. Default-on; MORI_EP_TOKOFF_EXT=0
# (or false/no/off) opts back out to the cco-window path (tokOffPeers
Expand All @@ -332,7 +332,7 @@ def _build(self, cfg, comm):
_tokoff_env = os.environ.get("MORI_EP_TOKOFF_EXT", "1").strip().lower()
_tokoff_on = _tokoff_env not in ("0", "false", "no", "off")
if self._is1250 and _tokoff_on:
self._tokoff_ext = _TokOffExt(cfg.rank, cfg.world_size, dev)
self._tokoff_ext = TokOffExt(cfg.rank, cfg.world_size, dev)
self.tok_off_peers = self._tokoff_ext.peers
self.total_recv = torch.zeros(1, **i32)
self.dispatch_barrier = torch.zeros(1, dtype=torch.uint32, device=dev)
Expand Down
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