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Original file line number Diff line number Diff line change
Expand Up @@ -104,30 +104,32 @@ def _preprocess_data(data):
# Check whether the loaded model & optimizer works smoothly.
model.train()
new_model.train()
data_for_shard = data_gen_fn()
data_for_origin = data_gen_fn()
if booster.plugin.stage_manager is not None:
booster.execute_pipeline(
_preprocess_data(data), model, _criterion, optimizer, return_loss=True, return_outputs=False
_preprocess_data(data_for_shard), model, _criterion, optimizer, return_loss=True, return_outputs=False
)
booster.execute_pipeline(
_preprocess_data(data), new_model, _criterion, new_optimizer, return_loss=True, return_outputs=False
_preprocess_data(data_for_origin),
new_model,
_criterion,
new_optimizer,
return_loss=True,
return_outputs=False,
)
else:
old_model_loss = criterion(model(**_preprocess_data(data)))
old_model_loss = criterion(model(**_preprocess_data(data_for_shard)))
optimizer.backward(old_model_loss)
new_model_loss = criterion(new_model(**_preprocess_data(data)))
new_model_loss = criterion(new_model(**_preprocess_data(data_for_origin)))
new_optimizer.backward(new_model_loss)

optimizer.step()
new_optimizer.step()

# Check updated weights.
stage_manager = booster.plugin.stage_manager

if stage_manager is None or stage_manager.is_first_stage():
assert_close_loose(model.unwrap().wte.weight.data, new_model.unwrap().wte.weight.data, atol=5e-3, rtol=5e-3)
assert_close_loose(
model.unwrap().h[0].mlp.c_fc.weight.data, new_model.unwrap().h[0].mlp.c_fc.weight.data, atol=5e-3, rtol=5e-3
)
for p1, p2 in zip(model.unwrap().parameters(), new_model.unwrap().parameters()):
assert_close_loose(p1, p2, atol=5e-3, rtol=5e-3)

dist.barrier()
Randomizer.reset_index()
Expand Down