XPK Start: Sat Apr 25 10:54:22 UTC 2026 PyTorch was not found. Models won't be available and only tokenizers, configuration and file/data utilities can be used. `rope_parameters`'s factor field must be a float >= 1, got 40 `rope_parameters`'s beta_fast field must be a float, got 32 `rope_parameters`'s beta_slow field must be a float, got 1 DeepseekV32Config got `key=rope_scaling` in kwargs but hasn't set it as attribute. For RoPE standardization you need to set `self.rope_parameters` in model's config. 2026-04-25 10:54:47.985696: E external/local_xla/xla/stream_executor/cuda/cuda_platform.cc:51] failed call to cuInit: INTERNAL: CUDA error: Failed call to cuInit: UNKNOWN ERROR (303) I0425 10:54:48.199598 138754070185792 max_utils.py:273] Attempting to initialize the jax distributed system... I0425 10:54:57.240830 138754070185792 distributed.py:149] Starting JAX distributed service on [::]:8482 I0425 10:54:57.243187 138754070185792 distributed.py:172] Connecting to JAX distributed service on mt-03-dropout-147a1-slice-job-0-0.mt-03-dropout-147a1:8482 I0425 10:54:58.258645 138754070185792 max_utils.py:284] Jax distributed system initialized! I0425 10:55:03.435923 138754070185792 max_utils.py:800] System Information: Jax Version: 0.9.2 I0425 10:55:03.436030 138754070185792 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0425 10:55:03.436071 138754070185792 max_utils.py:802] System Information: Jax Backend: PJRT C API TFRT TPU v6 lite Built on Mar 4 2026 11:32:08 (1772652728) cl/878335365 I0425 10:55:03.436125 138754070185792 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0425 10:55:04.137144 138754070185792 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0425 10:55:04.253194 138754070185792 checkpointing.py:688] Setting up checkpoint logger... I0425 10:55:04.253318 138754070185792 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0425 10:55:04.253363 138754070185792 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None I0425 10:55:04.253557 138754070185792 base_pytree_checkpoint_handler.py:441] Created BasePyTreeCheckpointHandler: use_ocdbt=True, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x7e317b64c110>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0425 10:55:07.237421 138754070185792 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0425 10:55:07.237664 138754070185792 checkpoint_manager.py:708] [process=6][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1d6071a270>}, handler_registry=None I0425 10:55:07.237905 138754070185792 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1d6071a270>` for item "items" and save args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>` to `_handler_registry`. I0425 10:55:07.237954 138754070185792 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1d80574ec0>` for item "metrics" and save args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>` to `_handler_registry`. I0425 10:55:07.237991 138754070185792 composite_checkpoint_handler.py:505] Initialized registry DefaultCheckpointHandlerRegistry({('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1d6071a270>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1d6071a270>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1d80574ec0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1d80574ec0>}). I0425 10:55:07.238324 138754070185792 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34 I0425 10:55:07.238394 138754070185792 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7e1d8054b6a0> timeout: 1200 secs and primary_host=0 for async checkpoint writes I0425 10:55:07.937651 138754070185792 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints I0425 10:55:07.940967 138754070185792 checkpoint_manager.py:929] [process=6][thread=MainThread] CheckpointManager created, primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False, lightweight_initialize=False), root_directory=gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7e1d805a7680> I0425 10:55:07.941082 138754070185792 checkpointing.py:302] Checkpoint manager created! I0425 10:55:08.321779 138754070185792 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0425 10:55:08.321902 138754070185792 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. fsdp: 32 I0425 10:55:10.111191 138754070185792 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0425 10:55:10.111294 138754070185792 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None). I0425 10:55:10.117421 138754070185792 nnx_decoders.py:465] Unknown Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0425 10:55:10.117484 138754070185792 nnx_decoders.py:465] Unknown Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None). I0425 10:55:10.134184 138754070185792 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,128,2048]....................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 10:55:10.134242 138754070185792 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None). I0425 10:55:10.150267 138754070185792 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,128,2048]....................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 10:55:10.150329 138754070185792 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None). I0425 10:55:10.174613 138754070185792 attentions.py:1154] attentions/query Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim'). I0425 10:55:10.174681 138754070185792 attentions.py:1154] attentions/query Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None). I0425 10:55:10.190974 138754070185792 attentions.py:1155] attentions/key Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim'). I0425 10:55:10.191035 138754070185792 attentions.py:1155] attentions/key Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None). I0425 10:55:10.207062 138754070185792 attentions.py:1156] attentions/value Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim'). I0425 10:55:10.207135 138754070185792 attentions.py:1156] attentions/value Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None). I0425 10:55:10.237594 138754070185792 attentions.py:1198] attentions/out Logical: bfloat16[32,128,16,128]..................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv'). I0425 10:55:10.237668 138754070185792 attentions.py:1198] attentions/out Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None). I0425 10:55:10.264271 138754070185792 linears.py:525] linears/x Logical: bfloat16[32,128,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0425 10:55:10.264339 138754070185792 linears.py:525] linears/x Physical: bfloat16[32,128,7168]....................................... ('fsdp', None, None). I0425 10:55:13.934016 138754070185792 max_utils.py:791] Total memory size: 0.8 GB, Output size: 0.4 GB, Temp size: 0.4 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB. I0425 10:55:13.936311 138754070185792 metric_logger.py:301] number parameters: 1.104 billion I0425 10:55:18.004379 138754070185792 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0425 10:55:18.239936 138754070185792 checkpointing.py:798] Waited 0.23554253578186035 seconds for step 0 to finish before starting checkpointing. I0425 10:55:18.242234 138754070185792 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 10:55:18.244129 138754070185792 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0 I0425 10:55:18.245718 138754070185792 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/0. I0425 10:55:18.534798 138754070185792 signaling_client.py:364] Using JaxDistributedSignalingClient I0425 10:55:18.535742 138754070185792 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array. I0425 10:55:18.535805 138754070185792 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False I0425 10:55:18.814275 138754070185792 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.280268s I0425 10:55:18.814459 138754070185792 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.322 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2898561954498291 s) (per-host) I0425 10:55:18.814522 138754070185792 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.289931s (batch_requests_ready=0.003327s, total_serialization_initiated=0.286521s, others=0.000083s) I0425 10:55:18.814630 138754070185792 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.294575s (all_items=0.000018s, per_item={'items': '0.00001836'}, temp_paths=0.294556) I0425 10:55:18.815464 138754070185792 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.57 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/0. I0425 10:55:18.815751 138626830685952 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 11:15:18.815718 I0425 10:55:18.828195 138754070185792 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0425 10:55:18.828497 138625735972608 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save. I0425 10:55:18.828653 138754070185792 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777114518.2422144, 'wait_for_prev_duration_secs': 7.581710815429688e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777114518.2441697, 'checkpointer_blocking_duration_secs': 0.5717287063598633, 'get_old_steps_start_time': 1777114518.8159246, 'get_old_steps_duration_secs': 2.9802322387695312e-05, 'checkpoint_manager_blocking_start_time': 1777114518.2404087, 'checkpoint_manager_blocking_duration_secs': 0.5882062911987305} I0425 10:55:18.828759 138754070185792 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0425 10:55:18.828826 138754070185792 max_utils.py:750] Memstats: After params initialized: I0425 10:55:18.828875 138754070185792 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_24(process=6,(0,6,0,0)) I0425 10:55:18.828910 138754070185792 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_25(process=6,(1,6,0,0)) I0425 10:55:18.828935 138754070185792 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_28(process=6,(0,7,0,0)) I0425 10:55:18.828961 138754070185792 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_29(process=6,(1,7,0,0)) I0425 10:55:19.147397 138754070185792 metric_logger.py:196] completed step: 0, seconds: 4.067, TFLOP/s/device: 0.197, Tokens/s/device: 31.473, total_weights: 4096, loss: 10.874, lm_loss: 10.874, perplexity: 52805.141 I0425 10:55:19.336536 138754070185792 metric_logger.py:196] completed step: 1, seconds: 1.141, TFLOP/s/device: 0.702, Tokens/s/device: 112.176, total_weights: 4096, loss: 10.892, lm_loss: 10.892, perplexity: 53764.488 I0425 10:55:19.747726 138754070185792 metric_logger.py:196] completed step: 2, seconds: 0.121, TFLOP/s/device: 6.628, Tokens/s/device: 1059.296, total_weights: 4096, loss: 9.969, lm_loss: 9.969, perplexity: 21350.100 I0425 10:55:19.818242 138754070185792 metric_logger.py:196] completed step: 3, seconds: 0.399, TFLOP/s/device: 2.007, Tokens/s/device: 320.757, total_weights: 4096, loss: 9.125, lm_loss: 9.125, perplexity: 9186.262 I0425 10:55:19.959989 138754070185792 metric_logger.py:196] completed step: 4, seconds: 0.089, TFLOP/s/device: 9.034, Tokens/s/device: 1443.799, total_weights: 4096, loss: 8.469, lm_loss: 8.469, perplexity: 4765.735 I0425 10:55:19.968088 138754070185792 metric_logger.py:196] completed step: 5, seconds: 0.070, TFLOP/s/device: 11.433, Tokens/s/device: 1827.266, total_weights: 4096, loss: 7.908, lm_loss: 7.908, perplexity: 2719.938 I0425 10:55:21.899893 2805 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com I0425 10:55:24.228423 138625744365312 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/0/items/array_metadatas/process_6 I0425 10:55:29.722787 138754070185792 metric_logger.py:196] completed step: 6, seconds: 0.143, TFLOP/s/device: 5.610, Tokens/s/device: 896.660, total_weights: 4096, loss: 7.554, lm_loss: 7.554, perplexity: 1909.063 I0425 10:55:29.793247 138754070185792 metric_logger.py:196] completed step: 7, seconds: 9.685, TFLOP/s/device: 0.083, Tokens/s/device: 13.216, total_weights: 4096, loss: 7.313, lm_loss: 7.313, perplexity: 1500.206 I0425 10:55:29.863772 138754070185792 metric_logger.py:196] completed step: 8, seconds: 0.077, TFLOP/s/device: 10.436, Tokens/s/device: 1667.905, total_weights: 4096, loss: 7.091, lm_loss: 7.091, perplexity: 1200.912 I0425 10:55:29.935078 138754070185792 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0425 10:55:29.935732 138754070185792 checkpointing.py:798] Waited 0.0006630420684814453 seconds for step 9 to finish before starting checkpointing. I0425 10:55:29.937724 138754070185792 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 10:55:51.055638 138626830685952 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 48.557 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 32.5309898853302 s) (per-host) I0425 10:55:51.055748 138626830685952 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 32.239886s. I0425 10:55:59.438031 138626830685952 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 40.622151s. I0425 10:55:59.438327 138625735972608 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 10:55:59.438446 138625735972608 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save. I0425 10:55:59.438498 138625735972608 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0425 10:55:59.440613 138625735972608 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0425 10:55:59.440815 138754070185792 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0. W0425 10:55:59.440960 138754070185792 checkpoint_manager.py:1452] Waiting for previous save to complete took 29.503237 seconds. If this number is high, consider checkpointing less frequently. I0425 10:55:59.442806 138754070185792 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9 I0425 10:55:59.444815 138754070185792 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/9. I0425 10:55:59.743111 138754070185792 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array. I0425 10:55:59.743209 138754070185792 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False I0425 10:55:59.777446 138754070185792 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.035974s I0425 10:55:59.777622 138754070185792 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 35.468 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04349160194396973 s) (per-host) I0425 10:55:59.777675 138754070185792 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.043554s (batch_requests_ready=0.003069s, total_serialization_initiated=0.040415s, others=0.000070s) I0425 10:55:59.777771 138754070185792 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.047566s (all_items=0.000016s, per_item={'items': '0.00001574'}, temp_paths=0.047550) I0425 10:55:59.778458 138754070185792 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/9. I0425 10:55:59.778806 138625735972608 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 11:15:59.778769 I0425 10:55:59.780750 138754070185792 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0425 10:55:59.780985 138626804016896 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save. I0425 10:55:59.781088 138754070185792 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777114529.937693, 'wait_for_prev_duration_secs': 29.503236532211304, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777114559.4428453, 'checkpointer_blocking_duration_secs': 0.3361053466796875, 'get_old_steps_start_time': 1777114559.7789733, 'get_old_steps_duration_secs': 2.7894973754882812e-05, 'checkpoint_manager_blocking_start_time': 1777114529.9359674, 'checkpoint_manager_blocking_duration_secs': 29.845086812973022} I0425 10:55:59.781269 138754070185792 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0425 10:55:59.781323 138754070185792 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 10:56:04.842082 138601828345600 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_03_dropout/checkpoints/9/items/array_metadatas/process_6 I0425 10:56:39.636874 138625735972608 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 39.586 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 39.9027214050293 s) (per-host) I0425 10:56:39.636992 138625735972608 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 39.858070s. I0425 10:56:48.366320 138625735972608 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 48.587377s. I0425 10:56:48.366590 138626804016896 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 10:56:48.366648 138626804016896 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save. I0425 10:56:48.366693 138626804016896 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0425 10:56:48.369266 138626804016896 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0425 10:56:48.369448 138754070185792 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9. I0425 10:56:48.369623 138754070185792 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 10:56:48.370596 138754070185792 metric_logger.py:196] completed step: 9, seconds: 0.072, TFLOP/s/device: 11.177, Tokens/s/device: 1786.437, total_weights: 4096, loss: 7.016, lm_loss: 7.016, perplexity: 1113.843 Per train step: Total TFLOPs: 0.80 split as 99.60% learnable weight flops and 0.40% attention flops XPK End: Sat Apr 25 10:56:58 UTC 2026 EXIT_CODE=0