2026-04-16 01:16:30.910610: 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) I0416 01:16:31.027865 134489513024640 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 01:17:28.670632 134489513024640 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 01:17:28.670751 134489513024640 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 01:17:28.670787 134489513024640 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 I0416 01:17:28.670817 134489513024640 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 01:17:28.670898 134489513024640 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 01:17:28.764396 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 01:17:29.171955 134489513024640 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 01:17:29.172146 134489513024640 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 01:17:29.172332 134489513024640 checkpointing.py:688] Setting up checkpoint logger... I0416 01:17:29.172373 134489513024640 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 01:17:29.172422 134489513024640 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 01:17:29.172890 134489513024640 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 0x7a50b0bd3ad0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 01:17:31.594472 134489513024640 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 01:17:31.594671 134489513024640 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 0x7a4a34d7c4d0>}, handler_registry=None I0416 01:17:31.594933 134489513024640 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7a4a34d7c4d0>` 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`. I0416 01:17:31.594973 134489513024640 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a4a34935d90>` 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`. I0416 01:17:31.595002 134489513024640 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 0x7a4a34d7c4d0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7a4a34d7c4d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a4a34935d90>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a4a34935d90>}). I0416 01:17:31.595304 134489513024640 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 01:17:31.595359 134489513024640 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7a4a349420c0> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 01:17:31.732453 134489513024640 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints I0416 01:17:31.732688 134489513024640 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=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), root_directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7a4a349358b0> I0416 01:17:31.732768 134489513024640 checkpointing.py:302] Checkpoint manager created! I0416 01:17:31.809881 134489513024640 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 01:17:31.812908 134489513024640 reader.py:262] Creating a tf.data.Dataset reading 8 files located in folders: tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0. I0416 01:17:31.868386 134489513024640 logging_logger.py:49] Constructing tf.data.Dataset __local_c4_builder for split train, from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 01:17:31.897534 134489513024640 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 01:17:31.897614 134489513024640 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 01:17:32.905406 134489513024640 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 01:17:32.905558 134489513024640 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 01:17:33.008879 134489513024640 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 01:17:33.008968 134489513024640 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 01:17:33.024119 134489513024640 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 01:17:33.024171 134489513024640 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 01:17:33.046853 134489513024640 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 01:17:33.046915 134489513024640 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 01:17:33.062073 134489513024640 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 01:17:33.062126 134489513024640 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 01:17:33.077083 134489513024640 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 01:17:33.077135 134489513024640 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 01:17:33.099668 134489513024640 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 01:17:33.099730 134489513024640 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 01:17:33.118588 134489513024640 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0416 01:17:33.118644 134489513024640 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). I0416 01:17:33.312770 134489513024640 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 01:17:33.312889 134489513024640 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 01:17:33.364449 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. [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 I0416 01:17:33.759333 134489513024640 maxtext_utils.py:1790] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: P('norm',) Physical: (None,) I0416 01:17:33.759448 134489513024640 maxtext_utils.py:1790] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0416 01:17:33.759491 134489513024640 maxtext_utils.py:1790] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0416 01:17:33.759536 134489513024640 maxtext_utils.py:1790] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: P('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0416 01:17:33.759576 134489513024640 maxtext_utils.py:1790] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0416 01:17:33.759603 134489513024640 maxtext_utils.py:1790] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0416 01:17:33.759642 134489513024640 maxtext_utils.py:1790] 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) I0416 01:17:33.759680 134489513024640 maxtext_utils.py:1790] 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') I0416 01:17:33.759708 134489513024640 maxtext_utils.py:1790] 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) I0416 01:17:33.759734 134489513024640 maxtext_utils.py:1790] 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) I0416 01:17:33.759776 134489513024640 maxtext_utils.py:1790] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: P('embed_vocab', 'vocab') Physical: ('fsdp', None) I0416 01:17:33.759809 134489513024640 maxtext_utils.py:1790] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: P('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0416 01:17:34.193517 134489513024640 train.py:157] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0416 01:17:34.193611 134489513024640 train.py:157] train/xent Physical: float32[8,2048]............................................. ('fsdp', None). I0416 01:17:34.208158 134489513024640 train.py:164] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0416 01:17:34.208212 134489513024640 train.py:164] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None). W0416 01:17:34.503171 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 01:17:34.617815 134489513024640 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. I0416 01:17:34.618378 134489513024640 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 01:17:34.618527 134489513024640 metric_logger.py:289] number parameters: 1.104 billion W0416 01:17:37.781006 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 01:17:37.913032 134489513024640 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 01:17:38.033365 134489513024640 checkpointing.py:798] Waited 0.12031364440917969 seconds for step 0 to finish before starting checkpointing. I0416 01:17:38.033833 134489513024640 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 01:17:38.033989 134489513024640 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 01:17:38.034426 134489513024640 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0. I0416 01:17:38.115122 134489513024640 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 01:17:38.206505 134489513024640 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0416 01:17:38.206648 134376304150080 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 I0416 01:17:38.207020 134489513024640 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 W0416 01:17:38.438560 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.445207 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.458125 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.467123 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.475936 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.482499 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.487801 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:38.492311 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 01:17:38.985124 134376293664320 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items I0416 01:17:39.151201 134376253818432 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776302258891087693, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776302258891087693, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 01:17:39.497686 3479277 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 01:17:39.497759 3479277 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 01:17:40.807861 134489513024640 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.602152s I0416 01:17:40.808447 134489513024640 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 4.584 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host) I0416 01:17:40.808512 134489513024640 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.692270s (batch_requests_ready=0.085964s, total_serialization_initiated=2.605893s, others=0.000413s) I0416 01:17:40.808588 134489513024640 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.692900s (all_items=0.000021s, per_item={'items': '0.00002050'}, temp_paths=2.692880) I0416 01:17:40.814755 134376314635840 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 01:17:40.814902 134489513024640 async_checkpointer.py:561] Finished blocking save. Time taken: 2.780858s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0. I0416 01:17:40.815173 134489513024640 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 01:17:40.815362 134376190903872 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 01:17:40.815453 134489513024640 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776302258.0338206, 'wait_for_prev_duration_secs': 4.3392181396484375e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776302258.0340111, 'checkpointer_blocking_duration_secs': 2.7810561656951904, 'get_old_steps_start_time': 1776302260.815094, 'get_old_steps_duration_secs': 3.170967102050781e-05, 'checkpoint_manager_blocking_start_time': 1776302258.033723, 'checkpoint_manager_blocking_duration_secs': 2.7816920280456543} I0416 01:17:40.815600 134489513024640 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 01:17:40.815652 134489513024640 max_utils.py:750] Memstats: After params initialized: I0416 01:17:40.815703 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0416 01:17:40.815729 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0416 01:17:40.815749 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0416 01:17:40.815768 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0416 01:17:40.815786 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0416 01:17:40.815804 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0416 01:17:40.815822 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0416 01:17:40.815839 134489513024640 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) W0416 01:17:40.822492 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:40.830400 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 01:17:40.835141 3476494 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 01:17:41.179186 134489513024640 metric_logger.py:185] completed step: 0, seconds: 3.294, TFLOP/s/device: 4.125, Tokens/s/device: 621.733, total_weights: 13328, loss: 10.828 I0416 01:17:41.180207 134489513024640 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/tensorboard/' I0416 01:17:41.295828 134489513024640 metric_logger.py:185] completed step: 1, seconds: 3.264, TFLOP/s/device: 4.163, Tokens/s/device: 627.472, total_weights: 12332, loss: 10.828 I0416 01:17:41.413284 134489513024640 metric_logger.py:185] completed step: 2, seconds: 0.010, TFLOP/s/device: 1335.344, Tokens/s/device: 201277.641, total_weights: 15161, loss: 9.823 I0416 01:17:41.531401 134489513024640 metric_logger.py:185] completed step: 3, seconds: 0.118, TFLOP/s/device: 115.466, Tokens/s/device: 17404.310, total_weights: 13327, loss: 9.405 I0416 01:17:41.848998 134376272692800 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items/array_metadatas/process_0 I0416 01:18:00.687170 134489513024640 metric_logger.py:185] completed step: 4, seconds: 0.117, TFLOP/s/device: 115.678, Tokens/s/device: 17436.317, total_weights: 11939, loss: 9.045 I0416 01:18:00.696116 134489513024640 metric_logger.py:185] completed step: 5, seconds: 0.118, TFLOP/s/device: 115.271, Tokens/s/device: 17374.927, total_weights: 15502, loss: 8.953 I0416 01:18:00.813274 134489513024640 metric_logger.py:185] completed step: 6, seconds: 19.155, TFLOP/s/device: 0.709, Tokens/s/device: 106.917, total_weights: 13864, loss: 8.775 I0416 01:18:00.930847 134489513024640 metric_logger.py:185] completed step: 7, seconds: 0.006, TFLOP/s/device: 2269.439, Tokens/s/device: 342074.495, total_weights: 12988, loss: 8.688 I0416 01:18:01.048358 134489513024640 metric_logger.py:185] completed step: 8, seconds: 0.118, TFLOP/s/device: 114.872, Tokens/s/device: 17314.700, total_weights: 13820, loss: 8.740 I0416 01:18:01.165199 134489513024640 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 01:18:01.166109 134489513024640 checkpointing.py:798] Waited 0.0009391307830810547 seconds for step 9 to finish before starting checkpointing. I0416 01:18:01.166412 134489513024640 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 01:18:07.703014 134376201389632 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 26.894088s (commit=26.403457s, array_metadata_write=0.490631s) I0416 01:18:07.704215 134376314635840 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 427.093 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 29 seconds) (per-host) I0416 01:18:07.704338 134376314635840 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 26.889369s. I0416 01:18:07.988342 134376314635840 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776302258891087693, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 01:18:08.175703 134376314635840 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0416 01:18:08.389718 134376253818432 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776302258891087693, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 01:18:08.612563 134376314635840 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 01:18:08.612757 134376314635840 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.581502s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items I0416 01:18:08.613499 134376314635840 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items I0416 01:18:08.844519 134376314635840 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 I0416 01:18:09.537853 134376314635840 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0`. I0416 01:18:09.538592 134376314635840 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 31.504565s. directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 I0416 01:18:09.538670 134376314635840 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 28.723706s. I0416 01:18:09.538797 134376190903872 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 01:18:09.538854 134376190903872 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 01:18:09.538915 134376190903872 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 01:18:09.538962 134376190903872 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 01:18:09.539125 134489513024640 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0. W0416 01:18:09.539183 134489513024640 checkpoint_manager.py:1441] Waiting for previous save to complete took 8.372799 seconds. If this number is high, consider checkpointing less frequently. I0416 01:18:09.540298 134489513024640 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 01:18:09.540547 134489513024640 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9. I0416 01:18:09.717551 134376190903872 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 01:18:09.729332 134489513024640 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0416 01:18:09.729439 134489513024640 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 I0416 01:18:10.434890 134376180418112 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 01:18:20.391330 134489513024640 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 10.662500s I0416 01:18:20.396444 134489513024640 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.146 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 10 seconds) (per-host) I0416 01:18:20.396536 134489513024640 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 10.767544s (batch_requests_ready=0.096826s, total_serialization_initiated=10.665735s, others=0.004984s) I0416 01:18:20.396635 134489513024640 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 10.768180s (all_items=0.000027s, per_item={'items': '0.00002670'}, temp_paths=10.768153) I0416 01:18:20.398578 134376201389632 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 01:18:20.398694 134489513024640 async_checkpointer.py:561] Finished blocking save. Time taken: 10.858347s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9. I0416 01:18:20.399062 134489513024640 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 01:18:20.399352 134376392230464 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 01:18:20.399519 134489513024640 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776302281.1663644, 'wait_for_prev_duration_secs': 8.372799396514893, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776302289.5403204, 'checkpointer_blocking_duration_secs': 10.858522653579712, 'get_old_steps_start_time': 1776302300.3988667, 'get_old_steps_duration_secs': 0.00012135505676269531, 'checkpoint_manager_blocking_start_time': 1776302281.1663098, 'checkpoint_manager_blocking_duration_secs': 19.233163356781006} I0416 01:18:20.399693 134489513024640 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 01:18:20.399734 134489513024640 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 01:18:21.195605 134396342437440 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items/array_metadatas/process_0 I0416 01:18:45.275198 134376180418112 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 24.877952s (commit=24.421089s, array_metadata_write=0.456863s) I0416 01:18:45.276521 134376201389632 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 354.494 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 35 seconds) (per-host) I0416 01:18:45.276687 134376201389632 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 24.877934s. I0416 01:18:45.683343 134376201389632 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0416 01:18:46.131463 134376201389632 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 01:18:46.132381 134376201389632 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.586270s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 01:18:46.133200 134376201389632 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 01:18:46.365034 134376201389632 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 01:18:47.039835 134376201389632 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9`. I0416 01:18:47.040642 134376201389632 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 37.500308s. directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/linen_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 01:18:47.040744 134376201389632 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 26.641994s. I0416 01:18:47.040967 134376392230464 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 01:18:47.041121 134376392230464 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 01:18:47.041230 134376392230464 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 01:18:47.041298 134376392230464 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 01:18:47.041649 134489513024640 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9. I0416 01:18:47.041826 134489513024640 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 01:18:47.042757 134489513024640 metric_logger.py:185] completed step: 9, seconds: 0.118, TFLOP/s/device: 115.503, Tokens/s/device: 17409.933, total_weights: 12300, loss: 8.710 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops