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[hotfix] fix the bug of repeatedly storing param group #4951

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Oct 31, 2023
Merged

[hotfix] fix the bug of repeatedly storing param group #4951

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12 changes: 6 additions & 6 deletions colossalai/booster/plugin/gemini_plugin.py
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Original file line number Diff line number Diff line change
Expand Up @@ -150,24 +150,24 @@ def save_sharded_optimizer(
# Preparing file paths and index file.
states_name, save_index_file, param_group_file = get_optimizer_base_filenames(prefix)
index_file = CheckpointIndexFile(checkpoint)
index_file.append_meta_data("param_groups", param_group_file)

# Store the information of param groups to param_group_file.
index_file.append_meta_data("param_groups", param_group_file)
group_file_path = os.path.join(checkpoint, param_group_file)
param_groups = optimizer.get_param_groups_for_saving()
torch.save(param_groups, group_file_path)
if self.coordinator.is_master():
group_file_path = os.path.join(checkpoint, param_group_file)
param_groups = optimizer.get_param_groups_for_saving()
torch.save(param_groups, group_file_path)

# States are broken into shards within max_shard_size.
state_dict_shard = optimizer.state_shard(prefix=prefix, max_shard_size=size_per_shard, only_rank_0=True)

# Save shards of optimizer states.
is_master = self.coordinator.is_master()
total_size = save_state_dict_shards(
sharded_state_dict=state_dict_shard,
checkpoint=checkpoint,
index_file=index_file,
base_filename=states_name,
is_master=is_master,
is_master=self.coordinator.is_master(),
use_safetensors=False,
)

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7 changes: 4 additions & 3 deletions colossalai/booster/plugin/low_level_zero_plugin.py
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Original file line number Diff line number Diff line change
Expand Up @@ -119,11 +119,12 @@ def save_sharded_optimizer(
# Preparing file paths and index file.
states_name, save_index_file, param_group_file = get_optimizer_base_filenames(prefix)
index_file = CheckpointIndexFile(checkpoint)
index_file.append_meta_data("param_groups", param_group_file)

# Store the information of param groups to param_group_file.
index_file.append_meta_data("param_groups", param_group_file)
group_file_path = os.path.join(checkpoint, param_group_file)
save_param_groups(state_dict, group_file_path)
if self.coordinator.is_master():
group_file_path = os.path.join(checkpoint, param_group_file)
save_param_groups(state_dict, group_file_path)

# Save shards of optimizer states.
total_size = 0
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