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Update tutorial of device mesh to use fsdp2 #3472

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Jul 18, 2025
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Update tutorial of device mesh to use fsdp2 #3472

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6 changes: 3 additions & 3 deletions recipes_source/distributed_device_mesh.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,7 @@ users would not need to manually create and manage shard group and replicate gro
import torch.nn as nn
from torch.distributed.device_mesh import init_device_mesh
from torch.distributed.fsdp import FullyShardedDataParallel as FSDP, ShardingStrategy
from torch.distributed.fsdp import fully_shard as FSDP
class ToyModel(nn.Module):
Expand All @@ -136,9 +136,9 @@ users would not need to manually create and manage shard group and replicate gro
# HSDP: MeshShape(2, 4)
mesh_2d = init_device_mesh("cuda", (2, 4))
mesh_2d = init_device_mesh("cuda", (2, 4), mesh_dim_names=("dp_replicate", "dp_shard"))
model = FSDP(
ToyModel(), device_mesh=mesh_2d, sharding_strategy=ShardingStrategy.HYBRID_SHARD
ToyModel(), device_mesh=mesh_2d
)
Let's create a file named ``hsdp.py``.
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