The v2 top level had grown to ~27 dirs + 13 loose files — half of them
single-concept abstraction shells (memory/ 86 LOC, transport/ 222, parity/ 178,
extend/ 226) and half vendored fastvideo code sitting as peers to the actual v2
design. Regroup to mirror README section 3 "Planes & dependency order":
core/ enums+types, card, loop, program, parity, request, parallel
(the model-native contracts; no kernels)
runtime/ + folded-in substrate: cache, memory, transport, extend
(the import graph shows only runtime consumes them; compile/cudagraph
already lived here)
serving/ + deploy/ (products / fleet)
_vendor/ all copied fastvideo: models, layers, attention, configs, distributed,
platforms, api, hooks, logging_utils, third_party + fastvideo_args/
utils/logger/envs/forward_context — internal layout unchanged, still
mirrors upstream for diffing
28 dirs + 13 root files -> 8 dirs + 6 root files. Pure mechanical move: 947
absolute-import paths rewritten (v2.X -> v2.{core,runtime,serving,_vendor}.X),
boundary-anchored so platform/ (native dispatch) and platforms/ (vendored CUDA
detect) no longer collide and neither does hooks/ vs extend/. Deleted the empty
v2/loader/. README section 3 + 16 updated; stale test count corrected
(34 files/216 tests -> 22 files/143 tests).
Validated: `import v2` stays torch-free; `v2/run_tests.py` and `pytest v2/tests/`
-> 143 passed, 2 skipped on the numpy toy backend. (On a GPU box force the toy
backend with CUDA_VISIBLE_DEVICES="" or detect() picks cuda.) No external importer
changed — examples use the re-exported `from v2 import VideoGenerator`.
45 lines
912 B
Python
45 lines
912 B
Python
"""Loop plane — driven loops + policies."""
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from __future__ import annotations
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from v2.core.enums import LoopKind, WorkUnitKind
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from v2.core.loop.contracts import (
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CacheOp,
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CachePlan,
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Done,
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Loop,
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LoopContext,
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LoopResult,
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LoopState,
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PlacementHint,
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ResourceRequest,
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ShapeSignature,
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StepContext,
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StepResult,
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WorkPlan,
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)
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from v2.core.loop.driver import LoopRunner
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from v2.core.loop.sampler import add_noise, build_flow_sigmas, flow_match_euler_step, x0_from_velocity
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__all__ = [
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"Loop",
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"LoopContext",
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"LoopState",
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"LoopResult",
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"WorkPlan",
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"Done",
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"StepResult",
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"StepContext",
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"ShapeSignature",
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"ResourceRequest",
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"CachePlan",
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"CacheOp",
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"PlacementHint",
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"LoopRunner",
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"LoopKind",
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"WorkUnitKind",
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"build_flow_sigmas",
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"flow_match_euler_step",
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"x0_from_velocity",
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"add_noise",
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]
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