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Add ATen bucketing pass as well #178

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08e657e
Add ATen bucketing pass as well
fmassa Oct 1, 2025
a61c74c
Merge branch 'main' of github.com:meta-pytorch/autoparallel into fmas…
fmassa Oct 3, 2025
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23 changes: 19 additions & 4 deletions autoparallel/auto_bucketing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,9 @@
# LICENSE file in the root directory of this source tree.

import torch
from torch._inductor.fx_passes.overlap_preserving_bucketer import (
OverlapPreservingBucketer,
)
from torch._inductor.fx_passes.overlap_scheduling import OverlapScheduler

from .autobucketing_util import bucket_func, bucket_plan, bucket_utils, reorder
Expand Down Expand Up @@ -101,14 +104,26 @@ class aten_autobucketing_config:
max_in_flight_gb = 2.0
compute_overlap_multipler = 1.0
max_coll_distance = 100
max_bucket_memory_gb = 1.0


def aten_autobucketing_reordering_pass(
gm: torch.fx.Graph, configs: "aten_autobucketing_config"
graph: torch.fx.Graph, configs: "aten_autobucketing_config"
) -> torch.fx.GraphModule:
return OverlapScheduler(
gm.owning_module,
overlap_scheduler = OverlapScheduler(
graph.owning_module,
compute_overlap_multipler=configs.compute_overlap_multipler,
max_in_flight_gb=configs.max_in_flight_gb,
max_coll_distance=configs.max_coll_distance,
).run()
)

gm = overlap_scheduler.run()
bucketer = OverlapPreservingBucketer(
graph=overlap_scheduler.graph,
collective_info=overlap_scheduler.collective_info,
node_ancestors=overlap_scheduler.node_ancestors,
scheduled=overlap_scheduler.scheduled,
max_bucket_memory_gb=configs.max_bucket_memory_gb,
)
bucketer.bucket_collectives()
return gm
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