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Fix Batch Size Calculation for Multi-GPU Training #5

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Fix Batch Size Calculation for Multi-GPU Training #5

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3 changes: 3 additions & 0 deletions deepspeed/runtime/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1768,6 +1768,9 @@ def deepspeed_io(self,
if self.mpu is not None:
data_parallel_world_size = self.mpu.get_data_parallel_world_size()
data_parallel_rank = self.mpu.get_data_parallel_rank()
else:
data_parallel_world_size = self.dp_world_size
data_parallel_rank = groups._get_sequence_data_parallel_rank()

if data_sampler is None and (route == ROUTE_PREDICT or route == ROUTE_EVAL):
data_sampler = torch.utils.data.DistributedSampler(
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