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Update jax.host_id() and jax.host_count() to jax.process_index() and jax.process_count(), respectively. #839

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Merged
copybara-service merged 1 commit into from
Feb 2, 2026
Merged

Update jax.host_id() and jax.host_count() to jax.process_index() and jax.process_count(), respectively. #839

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2 changes: 1 addition & 1 deletion hessian/model_debugger.py
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Original file line number Diff line number Diff line change
Expand Up @@ -555,7 +555,7 @@ def full_eval(self,
self._stored_metrics,
remove_leaf_tuples(flax.core.unfreeze(all_metrics)))

if self._metrics_logger and jax.host_id() == 0:
if self._metrics_logger and jax.process_index() == 0:
self._maybe_save_metrics(step)

return all_metrics
2 changes: 1 addition & 1 deletion init2winit/dataset_lib/imagenet_dataset.py
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Expand Up @@ -134,7 +134,7 @@ def map(self, features):
# Grain currently doesn't support the `ds.enumerate()`
# functionality, they suggested moving mixup to the training loop where we
# can access the step number.
batch_index = features[grain.INDEX][0] // jax.host_count()
batch_index = features[grain.INDEX][0] // jax.process_count()
seed = tf.random.experimental.stateless_fold_in(
self.initial_seed, batch_index
)
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4 changes: 2 additions & 2 deletions init2winit/mt_eval/main.py
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Expand Up @@ -101,8 +101,8 @@ def main(unused_argv):
if jax.process_index() == 0:
logging.info('argv:\n%s', ' '.join(sys.argv))
logging.info('device_count: %d', jax.device_count())
logging.info('num_hosts : %d', jax.host_count())
logging.info('host_id : %d', jax.host_id())
logging.info('num_hosts : %d', jax.process_count())
logging.info('host_id : %d', jax.process_index())

model_class = models.get_model(model_name)
dataset_builder = datasets.get_dataset(dataset_name)
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