2026-04-15 22:03:48.407355: 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) I0415 22:03:48.523908 127057361124480 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0415 22:04:36.934202 127057361124480 max_utils.py:800] System Information: Jax Version: 0.9.2 I0415 22:04:36.934307 127057361124480 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0415 22:04:36.934341 127057361124480 max_utils.py:802] System Information: Jax Backend: PJRT C API TFRT TPU v6 lite Built on Apr 6 2026 20:48:10 (1775533690) cl/895581894 I0415 22:04:36.934369 127057361124480 train_utils.py:334] WARNING: 'dataset_path' might be pointing your local file system I0415 22:04:36.934391 127057361124480 train_utils.py:347] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0415 22:04:36.934460 127057361124480 train.py:683] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0415 22:04:37.026933 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:37.433808 127057361124480 maxtext_utils.py:1517] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0415 22:04:37.434166 127057361124480 checkpointing.py:677] Setting up checkpoint logger... I0415 22:04:37.434216 127057361124480 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True I0415 22:04:37.434260 127057361124480 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0415 22:04:37.434754 127057361124480 base_pytree_checkpoint_handler.py:411] 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 0x738e41f00c20>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0415 22:04:39.075419 127057361124480 checkpointing.py:265] Enabling policy for fixed interval checkpointing. I0415 22:04:39.075598 127057361124480 checkpoint_manager.py:702] [process=0][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7387c650ecf0>}, handler_registry=None I0415 22:04:39.075934 127057361124480 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7387c650ecf0>` 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`. I0415 22:04:39.075982 127057361124480 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7387c613e1b0>` 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`. I0415 22:04:39.076013 127057361124480 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 0x7387c650ecf0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7387c650ecf0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7387c613e1b0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7387c613e1b0>}). I0415 22:04:39.076696 127057361124480 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0415 22:04:39.076759 127057361124480 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7387c61353a0> timeout: 600 secs and primary_host=0 for async checkpoint writes I0415 22:04:39.479802 126959824668224 checkpoint.py:228] Read Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776290555275431576, 'commit_timestamp_nsecs': 1776290603881506821, 'custom_metadata': {}} from gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/9/_CHECKPOINT_METADATA I0415 22:04:39.560906 126959824668224 checkpoint_manager.py:1847] Missing metrics for step 9 I0415 22:04:39.615766 127057361124480 checkpoint_manager.py:1788] Found 3 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints I0415 22:04:39.616282 127057361124480 checkpoint_manager.py:921] [process=0][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_hns=False, 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=5), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False), root_directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7387c613d160> I0415 22:04:39.616378 127057361124480 checkpointing.py:301] Checkpoint manager created! W0415 22:04:39.633237 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:39.816495 127057361124480 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0415 22:04:39.816596 127057361124480 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0415 22:04:39.919958 127057361124480 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0415 22:04:39.920056 127057361124480 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0415 22:04:39.934160 127057361124480 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0415 22:04:39.934207 127057361124480 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0415 22:04:39.954597 127057361124480 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0415 22:04:39.954657 127057361124480 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0415 22:04:39.968846 127057361124480 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0415 22:04:39.968895 127057361124480 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0415 22:04:39.983064 127057361124480 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0415 22:04:39.983113 127057361124480 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0415 22:04:40.004688 127057361124480 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0415 22:04:40.004744 127057361124480 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0415 22:04:40.022950 127057361124480 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0415 22:04:40.023002 127057361124480 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). I0415 22:04:40.203987 127057361124480 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint I0415 22:04:40.204095 127057361124480 checkpointing.py:581] restoring from this run's directory step 9 I0415 22:04:40.370913 127057361124480 checkpointer.py:304] Restoring checkpoint from gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/9. I0415 22:04:40.939375 3282721 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0415 22:04:40.939438 3282721 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0415 22:04:46.767710 127057361124480 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/read/gbytes_per_sec: 2.040 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 6 seconds) (per-host) I0415 22:04:46.768110 127057361124480 checkpointer.py:318] Finished restoring checkpoint in 6.48 seconds from gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/9. I0415 22:04:46.768230 127057361124480 standard_logger.py:34] {'step': 9, 'event_type': 'restore', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints', 'checkpointer_start_time': 1776290680.2874737, 'checkpointer_duration_secs': 6.480699062347412, 'checkpoint_manager_start_time': 1776290680.204359, 'checkpoint_manager_duration_secs': 6.563817262649536} [DECOUPLED NO-OP] gcs_storage: using stubs. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] workload_monitor: using stub. [DECOUPLED NO-OP] vertex_tensorboard: using stub. fsdp: 8 I0415 22:04:47.257686 127057361124480 maxtext_utils.py:1620] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: P('norm',) Physical: (None,) I0415 22:04:47.257794 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0415 22:04:47.257836 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0415 22:04:47.257880 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: P('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0415 22:04:47.257919 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0415 22:04:47.257946 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0415 22:04:47.257982 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/self_attention/key/kernel Shape: float32[2048,16,16,128] Logical: P('embed', 'layers', 'kv_heads', 'kv_head_dim') Physical: ('fsdp', None, None, None) I0415 22:04:47.258019 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/self_attention/out/kernel Shape: float32[16,16,128,2048] Logical: P('heads', 'layers', 'kv', 'embed') Physical: (None, None, None, 'fsdp') I0415 22:04:47.258062 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/self_attention/query/kernel Shape: float32[2048,16,16,128] Logical: P('embed', 'layers', 'q_heads', 'kv') Physical: ('fsdp', None, None, None) I0415 22:04:47.258090 127057361124480 maxtext_utils.py:1620] params/params/decoder/layers/self_attention/value/kernel Shape: float32[2048,16,16,128] Logical: P('embed', 'layers', 'kv_heads', 'kv_head_dim') Physical: ('fsdp', None, None, None) I0415 22:04:47.258124 127057361124480 maxtext_utils.py:1620] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: P('embed_vocab', 'vocab') Physical: ('fsdp', None) I0415 22:04:47.258158 127057361124480 maxtext_utils.py:1620] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: P('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0415 22:04:47.673756 127057361124480 train.py:155] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0415 22:04:47.673835 127057361124480 train.py:155] train/xent Physical: float32[8,2048]............................................. ('fsdp', None). I0415 22:04:47.687285 127057361124480 train.py:162] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0415 22:04:47.687336 127057361124480 train.py:162] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None). W0415 22:04:48.349091 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:48.412919 127057361124480 max_utils.py:791] Total memory size: 3.6 GB, Output size: 1.5 GB, Temp size: 2.0 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB. I0415 22:04:48.413421 127057361124480 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0415 22:04:48.413576 127057361124480 metric_logger.py:289] number parameters: 1.104 billion W0415 22:04:49.224299 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:49.292855 127057361124480 checkpointing.py:772] Waiting for step 10 to finish before checkpoint... I0415 22:04:49.409286 127057361124480 checkpointing.py:776] Waited 0.11642003059387207 seconds for step 10 to finish before starting checkpointing. I0415 22:04:49.409720 127057361124480 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0415 22:04:49.409896 127057361124480 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 10 I0415 22:04:49.410258 127057361124480 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10. I0415 22:04:49.487726 127057361124480 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0415 22:04:49.571030 126958232929856 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10 I0415 22:04:49.582373 127057361124480 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0415 22:04:49.582458 127057361124480 replica_slices.py:410] 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 W0415 22:04:49.825180 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.834841 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.843846 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.849640 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.853843 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.857811 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.861743 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:49.865754 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:50.314982 126958222444096 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/items I0415 22:04:50.478595 126958190986816 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776290690233357133, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776290690233357133, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/_CHECKPOINT_METADATA I0415 22:04:57.200733 127057361124480 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 7.618784s I0415 22:04:57.205028 127057361124480 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.599 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 7 seconds) (per-host) I0415 22:04:57.205099 127057361124480 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 7.716449s (batch_requests_ready=0.090680s, total_serialization_initiated=7.621570s, others=0.004199s) I0415 22:04:57.205169 127057361124480 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 7.716981s (all_items=0.000023s, per_item={'items': '0.00002337'}, temp_paths=7.716958) I0415 22:04:57.206512 126958232929856 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0415 22:04:57.206668 127057361124480 async_checkpointer.py:561] Finished blocking save. Time taken: 7.796725s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10. I0415 22:04:57.206875 127057361124480 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=10] Starting CheckpointManager Save Finalize thread=save_finalize I0415 22:04:57.207091 126958243415616 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0415 22:04:57.207211 127057361124480 standard_logger.py:34] {'step': 10, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776290689.4097044, 'wait_for_prev_duration_secs': 4.1484832763671875e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776290689.4099252, 'checkpointer_blocking_duration_secs': 7.796865940093994, 'get_old_steps_start_time': 1776290697.2068088, 'get_old_steps_duration_secs': 2.7418136596679688e-05, 'checkpoint_manager_blocking_start_time': 1776290689.409605, 'checkpoint_manager_blocking_duration_secs': 7.797580718994141} I0415 22:04:57.207296 127057361124480 checkpointing.py:408] Started an asynchronous checkpoint save for step 10 I0415 22:04:57.207343 127057361124480 max_utils.py:750] Memstats: After params initialized: I0415 22:04:57.207385 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0415 22:04:57.207410 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0415 22:04:57.207430 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0415 22:04:57.207447 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0415 22:04:57.207465 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0415 22:04:57.207481 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0415 22:04:57.207498 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0415 22:04:57.207515 127057361124480 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) W0415 22:04:57.213005 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:57.218812 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0415 22:04:57.222859 3281152 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0415 22:04:57.413291 127057361124480 metric_logger.py:185] completed step: 10, seconds: 0.879, TFLOP/s/device: 15.461, Tokens/s/device: 2330.509, total_weights: 16384, loss: 3.602 I0415 22:04:57.529555 127057361124480 metric_logger.py:185] completed step: 11, seconds: 8.119, TFLOP/s/device: 1.674, Tokens/s/device: 252.252, total_weights: 16384, loss: 3.101 I0415 22:04:57.648312 127057361124480 metric_logger.py:185] completed step: 12, seconds: 0.005, TFLOP/s/device: 2698.536, Tokens/s/device: 406752.731, total_weights: 16384, loss: 2.684 I0415 22:04:57.767012 127057361124480 metric_logger.py:185] completed step: 13, seconds: 0.117, TFLOP/s/device: 115.793, Tokens/s/device: 17453.554, total_weights: 16384, loss: 2.348 I0415 22:04:57.771792 127057361124480 checkpointing.py:772] Waiting for step 15 to finish before checkpoint... I0415 22:04:57.974397 126958201472576 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/items/array_metadatas/process_0 I0415 22:04:58.003503 127057361124480 checkpointing.py:776] Waited 0.23168087005615234 seconds for step 15 to finish before starting checkpointing. I0415 22:04:58.003898 127057361124480 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=10][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0415 22:05:28.525200 126958222444096 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 31.319427s (commit=30.840807s, array_metadata_write=0.478620s) I0415 22:05:28.526193 126958232929856 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 323.709 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 39 seconds) (per-host) I0415 22:05:28.526300 126958232929856 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 31.319587s. I0415 22:05:28.914751 126958232929856 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0415 22:05:29.126374 126958190986816 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776290690233357133, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/_CHECKPOINT_METADATA I0415 22:05:29.338120 126958232929856 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0415 22:05:29.338675 126958232929856 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.557470s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/items I0415 22:05:29.339335 126958232929856 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10/items I0415 22:05:29.576566 126958232929856 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10 I0415 22:05:30.268654 126958232929856 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10`. I0415 22:05:30.269279 126958232929856 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 40.859340s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/10 I0415 22:05:30.269350 126958232929856 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 33.062637s. I0415 22:05:30.269526 126958243415616 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0415 22:05:30.269634 126958243415616 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0415 22:05:30.269699 126958243415616 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=10] CheckpointManager Save Finalize is syncing with other hosts... I0415 22:05:30.269745 126958243415616 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=10] CheckpointManager Save Finalize is done on all hosts. I0415 22:05:30.269888 127057361124480 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=10][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=10. W0415 22:05:30.270006 127057361124480 checkpoint_manager.py:1441] Waiting for previous save to complete took 32.266109 seconds. If this number is high, consider checkpointing less frequently. I0415 22:05:30.270566 127057361124480 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 15 I0415 22:05:30.270856 127057361124480 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15. I0415 22:05:30.447567 127057361124480 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0415 22:05:30.447653 127057361124480 replica_slices.py:410] 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 I0415 22:05:30.452471 126958243415616 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15 I0415 22:05:31.140746 126958180501056 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15/items I0415 22:05:44.833394 127057361124480 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 14.386213s I0415 22:05:44.837795 127057361124480 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 872.476 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 14 seconds) (per-host) I0415 22:05:44.837863 127057361124480 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 14.483913s (batch_requests_ready=0.090226s, total_serialization_initiated=14.389404s, others=0.004283s) I0415 22:05:44.837975 127057361124480 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 14.484445s (all_items=0.000012s, per_item={'items': '0.00001240'}, temp_paths=14.484432) I0415 22:05:44.839432 126958232929856 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0415 22:05:44.839530 127057361124480 async_checkpointer.py:561] Finished blocking save. Time taken: 14.568918s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15. I0415 22:05:44.839774 127057361124480 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=15] Starting CheckpointManager Save Finalize thread=save_finalize I0415 22:05:44.840032 126959761753664 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0415 22:05:44.840166 127057361124480 standard_logger.py:34] {'step': 15, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776290698.0038753, 'wait_for_prev_duration_secs': 32.266109466552734, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776290730.2705905, 'checkpointer_blocking_duration_secs': 14.569055318832397, 'get_old_steps_start_time': 1776290744.8396726, 'get_old_steps_duration_secs': 4.0531158447265625e-05, 'checkpoint_manager_blocking_start_time': 1776290698.0038106, 'checkpoint_manager_blocking_duration_secs': 46.836328983306885} I0415 22:05:44.840331 127057361124480 checkpointing.py:408] Started an asynchronous checkpoint save for step 15 I0415 22:05:44.840783 127057361124480 metric_logger.py:185] completed step: 14, seconds: 0.119, TFLOP/s/device: 114.524, Tokens/s/device: 17262.306, total_weights: 16384, loss: 2.083 I0415 22:05:44.847590 127057361124480 metric_logger.py:185] completed step: 15, seconds: 0.119, TFLOP/s/device: 114.231, Tokens/s/device: 17218.187, total_weights: 16384, loss: 1.880 I0415 22:05:44.963509 127057361124480 metric_logger.py:185] completed step: 16, seconds: 47.074, TFLOP/s/device: 0.289, Tokens/s/device: 43.506, total_weights: 16384, loss: 1.726 I0415 22:05:45.082074 127057361124480 metric_logger.py:185] completed step: 17, seconds: 0.005, TFLOP/s/device: 2490.766, Tokens/s/device: 375435.380, total_weights: 16384, loss: 1.610 I0415 22:05:45.200659 127057361124480 metric_logger.py:185] completed step: 18, seconds: 0.117, TFLOP/s/device: 116.454, Tokens/s/device: 17553.182, total_weights: 16384, loss: 1.521 I0415 22:05:45.318291 127057361124480 checkpointing.py:772] Waiting for step 19 to finish before checkpoint... I0415 22:05:45.319114 127057361124480 checkpointing.py:776] Waited 0.0008349418640136719 seconds for step 19 to finish before starting checkpointing. I0415 22:05:45.319356 127057361124480 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=15][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0415 22:05:45.570439 126957782042176 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15/items/array_metadatas/process_0 I0415 22:06:25.877153 126959803696704 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 41.038579s (commit=40.587447s, array_metadata_write=0.451132s) I0415 22:06:25.878168 126958232929856 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 227.591 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 55 seconds) (per-host) I0415 22:06:25.878277 126958232929856 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.038701s. I0415 22:06:26.322466 126958232929856 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0415 22:06:26.763391 126958232929856 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0415 22:06:26.764169 126958232929856 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.586336s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15/items I0415 22:06:26.764822 126958232929856 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15/items I0415 22:06:26.999627 126958232929856 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15 I0415 22:06:27.672543 126958232929856 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15`. I0415 22:06:27.673169 126958232929856 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 57.402566s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/15 I0415 22:06:27.673245 126958232929856 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 42.833672s. I0415 22:06:27.673382 126959761753664 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0415 22:06:27.673488 126959761753664 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0415 22:06:27.673555 126959761753664 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=15] CheckpointManager Save Finalize is syncing with other hosts... I0415 22:06:27.673609 126959761753664 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=15] CheckpointManager Save Finalize is done on all hosts. I0415 22:06:27.674160 127057361124480 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=15][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=15. W0415 22:06:27.674270 127057361124480 checkpoint_manager.py:1441] Waiting for previous save to complete took 42.354924 seconds. If this number is high, consider checkpointing less frequently. I0415 22:06:27.674485 127057361124480 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 19 I0415 22:06:27.674794 127057361124480 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19. I0415 22:06:27.845186 126959761753664 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19 I0415 22:06:27.874891 127057361124480 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0415 22:06:27.874982 127057361124480 replica_slices.py:410] 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 I0415 22:06:28.584704 126959751267904 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19/items I0415 22:06:37.503365 127057361124480 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 9.628855s I0415 22:06:37.507374 127057361124480 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.267 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 9 seconds) (per-host) I0415 22:06:37.507434 127057361124480 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 9.742898s (batch_requests_ready=0.107028s, total_serialization_initiated=9.631961s, others=0.003908s) I0415 22:06:37.507505 127057361124480 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 9.743397s (all_items=0.000017s, per_item={'items': '0.00001669'}, temp_paths=9.743381) I0415 22:06:37.509087 126959740782144 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0415 22:06:37.509166 127057361124480 async_checkpointer.py:561] Finished blocking save. Time taken: 9.834631s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19. I0415 22:06:37.509332 127057361124480 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=19] Starting CheckpointManager Save Finalize thread=save_finalize I0415 22:06:37.509522 126959719810624 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0415 22:06:37.509628 127057361124480 standard_logger.py:34] {'step': 19, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776290745.3193278, 'wait_for_prev_duration_secs': 42.35492444038391, 'time_between_consecutive_saves_sec': 15.04956865310669, 'checkpointer_blocking_start_time': 1776290787.6745167, 'checkpointer_blocking_duration_secs': 9.834751605987549, 'get_old_steps_start_time': 1776290797.509281, 'get_old_steps_duration_secs': 1.811981201171875e-05, 'checkpoint_manager_blocking_start_time': 1776290745.319296, 'checkpoint_manager_blocking_duration_secs': 52.19030952453613} I0415 22:06:37.509737 127057361124480 checkpointing.py:408] Started an asynchronous checkpoint save for step 19 I0415 22:06:37.509769 127057361124480 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=19][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0415 22:06:38.267162 126959793210944 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19/items/array_metadatas/process_0 I0415 22:07:05.225203 126959803696704 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 27.717168s (commit=27.277830s, array_metadata_write=0.439339s) I0415 22:07:05.226099 126959740782144 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 337.327 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 37 seconds) (per-host) I0415 22:07:05.226149 126959740782144 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 27.716941s. I0415 22:07:05.651095 126959740782144 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0415 22:07:06.084767 126959740782144 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0415 22:07:06.084939 126959740782144 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.572984s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19/items I0415 22:07:06.085553 126959740782144 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19/items I0415 22:07:06.337577 126959740782144 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19 I0415 22:07:07.062654 126959740782144 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19`. I0415 22:07:07.063280 126959740782144 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 39.388753s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260415_211126/linen_main_20260415_211126_15_ocdbt_true/checkpoints/19 I0415 22:07:07.063343 126959740782144 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 29.554135s. I0415 22:07:07.063478 126959719810624 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0415 22:07:07.063578 126959719810624 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0415 22:07:07.063619 126959719810624 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=19] CheckpointManager Save Finalize is syncing with other hosts... I0415 22:07:07.063657 126959719810624 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=19] CheckpointManager Save Finalize is done on all hosts. I0415 22:07:07.063795 127057361124480 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=19][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=19. I0415 22:07:07.063926 127057361124480 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0415 22:07:07.064389 127057361124480 metric_logger.py:185] completed step: 19, seconds: 0.119, TFLOP/s/device: 114.627, Tokens/s/device: 17277.889, total_weights: 16384, loss: 1.449 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops