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validate use_remove_padding when applying sequence parallelism #153

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merged 7 commits into from
Jan 31, 2025
Merged

validate use_remove_padding when applying sequence parallelism #153

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67b58f0
validate when applying sequence parallelism
chujiezheng Jan 28, 2025
1a49109
run format.sh
chujiezheng Jan 29, 2025
7c662ef
fix 'actor.use_remove_padding' to 'actor.model.use_remove_padding'
chujiezheng Jan 30, 2025
3c170b9
Merge branch 'volcengine:main' into main
chujiezheng Jan 31, 2025
440014a
fix config check
chujiezheng Jan 31, 2025
4bd7d4c
fix typo
chujiezheng Jan 31, 2025
a9f680a
fix typo
chujiezheng Jan 31, 2025
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12 changes: 12 additions & 0 deletions verl/utils/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -86,4 +86,16 @@ def check_mutually_exclusive(mbs, mbs_per_gpu, name: str):
assert config.critic.ppo_mini_batch_size % config.critic.ppo_micro_batch_size == 0
assert config.critic.ppo_micro_batch_size * sp_size >= n_gpus

# Check if use_remove_padding is enabled when using sequence parallelism for fsdp
if config.actor_rollout_ref.actor.strategy == 'fsdp':
if config.actor_rollout_ref.actor.ulysses_sequence_parallel_size > 1 or \
config.actor_rollout_ref.ref.ulysses_sequence_parallel_size > 1:
assert config.actor_rollout_ref.model.use_remove_padding, \
"When using sequence parallelism for actor/ref policy, you must enable `use_remove_padding`."

if config.critic.strategy == 'fsdp':
if config.critic.ulysses_sequence_parallel_size > 1:
assert config.critic.model.use_remove_padding, \
"When using sequence parallelism for critic, you must enable `use_remove_padding`."

print("[validate_config] All configuration checks passed successfully!")
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