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Fix ZCC ema GPU alloc bug #11165

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Merged
merged 1 commit into from
Nov 7, 2025
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Fix ZCC ema GPU alloc bug #11165

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2 changes: 1 addition & 1 deletion paddlenlp/trainer/utils/zero_cost_checkpoint.py
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Original file line number Diff line number Diff line change
Expand Up @@ -190,7 +190,7 @@ def ema_accumulate(self, global_step, loss, zcc_ema_loss_threshold):
self.ema_buffer = self.ema_coef * self.ema_buffer + (1 - self.ema_coef) * cpu_master_weights
for index, ema_buf in self.ema_buffer_model_params.items():
_, cpu_buf = self.param_fusion_storage_helper.inited_buffers[index]
updated_ema = self.ema_coef * ema_buf + (1 - self.ema_coef) * cpu_buf
updated_ema = self.ema_coef * ema_buf + (1 - self.ema_coef) * cpu_buf.cpu()
self.ema_buffer_model_params[index] = updated_ema
logger.info(
f"[ZCC EMA] accmulating, buffer type:{self.ema_buffer.place} {self.ema_buffer.dtype}, done"
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