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Bug fix: Remove client optimizer param_group list item that does not have 'params' #827

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merged 5 commits into from
Mar 12, 2021
Merged

Bug fix: Remove client optimizer param_group list item that does not have 'params' #827

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f90b4b7
Remove param_group that does not have 'params' in the client optimize…
cli99 Mar 6, 2021
9053c9e
fix typo
cli99 Mar 6, 2021
8f7469e
fix printing
cli99 Mar 6, 2021
7b64a96
fix bug
cli99 Mar 7, 2021
0ae2a71
Merge branch 'master' into cheng/hf
jeffra Mar 12, 2021
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6 changes: 6 additions & 0 deletions deepspeed/runtime/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -585,6 +585,12 @@ def _configure_distributed_model(self, model):
def _configure_optimizer(self, client_optimizer, model_parameters):

if client_optimizer is not None:
client_optimizer.param_groups[:] = [
pg for pg in client_optimizer.param_groups if len(pg["params"]) != 0
]
logger.info(
"Removing param_group that has no 'params'in the client Optimizer")

basic_optimizer = client_optimizer
if self.global_rank == 0:
logger.info('Using client Optimizer as basic optimizer')
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