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ReturnnForwardJobV2, wait for checkpoint a bit #464

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ReturnnForwardJobV2, wait for checkpoint a bit #464

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17 changes: 14 additions & 3 deletions returnn/forward.py
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Original file line number Diff line number Diff line change
Expand Up @@ -304,9 +304,20 @@ def create_files(self):

# check here if model actually exists
if self.model_checkpoint is not None:
assert os.path.exists(
_get_model_path(self.model_checkpoint).get_path()
), f"Provided model checkpoint does not exists: {self.model_checkpoint}"
import time

num_tries = 0
while True:
if os.path.exists(_get_model_path(self.model_checkpoint).get_path()):
break
num_tries += 1
if num_tries > 10:
raise Exception(f"Provided model checkpoint does not exists: {self.model_checkpoint}")
print(
f"Provided model checkpoint does not exists: {self.model_checkpoint}. "
f"Waiting for 3s (try {num_tries})..."
)
time.sleep(3)

def run(self):
"""run"""
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