SolitaryThinker
db866dfb04
Sweep all 296 v2 modules: simplify verbose docstrings/comments and remove 376 dangling "(design_vN §X)" citations to the now-deleted design docs (v2/README.md is the source of truth). Comment/docstring-only — AST-verified code-identical; the CPU suite holds at 237 passed / 5 pre-existing. Also applies yapf + ruff --fix auto-fixes (import ordering, forward-ref annotation de-quoting under `from __future__ import annotations`; behavior- neutral, suite-confirmed) and adds the legitimate domain terms mot/clen/te to the codespell ignore-list. Remaining ruff (24) + mypy (68 no-untyped-call) findings are pre-existing v2 debt, untouched here.
47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
"""ParallelPlan — parallelism as a model contract.
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Parallelism is not a launch flag; it affects cache keys, scheduling, transport,
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capture, and parity, so it lives on the card. Declarative, validated, compiled to a
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mesh via a ParallelDims-style builder (``parallel/mesh.py``). This module is a pure
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leaf (no card/runtime imports) so ``card/`` can hold plans without a cycle.
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"""
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from __future__ import annotations
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import hashlib
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import json
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from dataclasses import dataclass, field
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# Canonical axis names. cfgp is <=2.
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AXIS_NAMES = ("dp", "tp", "sp", "cp", "cfgp", "pp_patch", "vae", "ep", "fsdp", "role", "replica")
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@dataclass
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class ParallelPlan:
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axes: dict[str, int] = field(default_factory=dict) # e.g. {"tp": 2, "sp": 4, "cfgp": 2}
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mesh_order: list[str] = field(default_factory=list)
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placement: str = "colocated"
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communication: dict[str, str] = field(default_factory=dict)
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# applicability conditions travel with axes
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applicability: dict[str, dict] = field(default_factory=dict)
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per_axis_communication: dict[str, str] = field(default_factory=dict)
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def degree(self, axis: str) -> int:
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return int(self.axes.get(axis, 1))
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def world_size(self) -> int:
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w = 1
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for v in self.axes.values():
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w *= int(v)
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return max(w, 1)
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@property
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def hash(self) -> str:
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"""Stable hash — part of the CacheKey (parallel_plan_hash)."""
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payload = json.dumps({"axes": self.axes, "order": self.mesh_order}, sort_keys=True)
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return hashlib.sha256(payload.encode()).hexdigest()[:16]
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@classmethod
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def single(cls) -> ParallelPlan:
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"""The default deployment: one device, all degree-one trivial groups."""
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return cls(axes={"dp": 1}, mesh_order=["dp"])
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