2026-04-23 01:38:23.078725: E external/local_xla/xla/stream_executor/cuda/cuda_fft.cc:467] Unable to register cuFFT factory: Attempting to register factory for plugin cuFFT when one has already been registered WARNING: All log messages before absl::InitializeLog() is called are written to STDERR E0000 00:00:1776908303.091663 2275839 cuda_dnn.cc:8579] Unable to register cuDNN factory: Attempting to register factory for plugin cuDNN when one has already been registered E0000 00:00:1776908303.095468 2275839 cuda_blas.cc:1407] Unable to register cuBLAS factory: Attempting to register factory for plugin cuBLAS when one has already been registered W0000 00:00:1776908303.106941 2275839 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776908303.106955 2275839 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776908303.106957 2275839 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776908303.106959 2275839 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. Unrecognized keys in `rope_scaling` for 'rope_type'='yarn': {'rope_theta'} `rope_scaling`'s factor field must be a float >= 1, got 40 `rope_scaling`'s beta_fast field must be a float, got 32 `rope_scaling`'s beta_slow field must be a float, got 1 Unrecognized keys in `rope_scaling` for 'rope_type'='yarn': {'rope_theta'} Unrecognized keys in `rope_scaling` for 'rope_type'='yarn': {'rope_theta'} Unrecognized keys in `rope_scaling` for 'rope_type'='yarn': {'rope_theta'} 2026-04-23 01:38:26.777635: 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) I0423 01:38:26.914352 124229166630720 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0423 01:38:58.850556 124229166630720 max_utils.py:800] System Information: Jax Version: 0.8.1 I0423 01:38:58.850844 124229166630720 max_utils.py:801] System Information: Jaxlib Version: 0.8.1 I0423 01:38:58.850891 124229166630720 max_utils.py:802] System Information: Jax Backend: PJRT C API TFRT TPU v6 lite Built on Nov 12 2025 14:16:36 (1762985796) cl/831091709 I0423 01:38:58.850920 124229166630720 train_utils.py:348] WARNING: 'dataset_path' might be pointing your local file system I0423 01:38:58.851124 124229166630720 train.py:703] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. I0423 01:38:59.511929 124229166630720 maxtext_utils.py:1604] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0423 01:38:59.512218 124229166630720 checkpointing.py:677] Setting up checkpoint logger... I0423 01:38:59.512264 124229166630720 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True I0423 01:38:59.512300 124229166630720 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0423 01:38:59.512723 124229166630720 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 0x70fc165b1eb0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0423 01:39:01.945936 124229166630720 checkpointing.py:265] Enabling policy for fixed interval checkpointing. I0423 01:39:01.946435 124229166630720 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 0x70fa44bf9be0>}, handler_registry=None I0423 01:39:01.946771 124229166630720 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x70fa44bf9be0>` 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`. I0423 01:39:01.946811 124229166630720 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x70fa44bfa1e0>` 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`. I0423 01:39:01.946843 124229166630720 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 0x70fa44bf9be0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x70fa44bf9be0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x70fa44bfa1e0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x70fa44bfa1e0>}). I0423 01:39:01.947326 124229166630720 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0423 01:39:01.947391 124229166630720 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x70fa3f70c540> timeout: 600 secs and primary_host=0 for async checkpoint writes I0423 01:39:02.075163 124229166630720 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints I0423 01:39:02.075405 124229166630720 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_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x70fa44fd9340> I0423 01:39:02.075693 124229166630720 checkpointing.py:301] Checkpoint manager created! I0423 01:39:02.156064 124229166630720 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0423 01:39:02.159137 124229166630720 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. I0423 01:39:02.226764 124229166630720 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 I0423 01:39:02.252614 124229166630720 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0423 01:39:02.252681 124229166630720 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0423 01:39:02.796333 124229166630720 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0423 01:39:02.797987 124229166630720 reader.py:262] Creating a tf.data.Dataset reading 2 files located in folders: tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0. I0423 01:39:02.812908 124229166630720 logging_logger.py:49] Constructing tf.data.Dataset __local_c4_builder for split validation, from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0423 01:39:02.815434 124229166630720 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0423 01:39:02.815486 124229166630720 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0423 01:39:03.124824 124229166630720 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0423 01:39:03.124924 124229166630720 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 01:39:03.432300 124229166630720 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0423 01:39:03.432394 124229166630720 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 01:39:03.445219 124229166630720 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0423 01:39:03.445269 124229166630720 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 01:39:03.464416 124229166630720 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0423 01:39:03.464478 124229166630720 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 01:39:03.477397 124229166630720 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0423 01:39:03.477453 124229166630720 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 01:39:03.490242 124229166630720 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0423 01:39:03.490292 124229166630720 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 01:39:03.510465 124229166630720 attentions.py:1198] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0423 01:39:03.510527 124229166630720 attentions.py:1198] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 01:39:03.526497 124229166630720 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0423 01:39:03.526552 124229166630720 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). I0423 01:39:03.681525 124229166630720 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint I0423 01:39:03.681630 124229166630720 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint. [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 I0423 01:39:04.260119 124229166630720 maxtext_utils.py:1707] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: PartitionSpec('norm',) Physical: (None,) I0423 01:39:04.260240 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: PartitionSpec('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0423 01:39:04.260283 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: PartitionSpec('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0423 01:39:04.260328 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: PartitionSpec('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0423 01:39:04.260369 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: PartitionSpec('norm', 'layers') Physical: (None, None) I0423 01:39:04.260396 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: PartitionSpec('norm', 'layers') Physical: (None, None) I0423 01:39:04.260436 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/self_attention/key/kernel Shape: float32[2048,16,16,128] Logical: PartitionSpec('embed', 'layers', 'kv_heads', 'kv_head_dim') Physical: ('fsdp', None, None, None) I0423 01:39:04.260475 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/self_attention/out/kernel Shape: float32[16,16,128,2048] Logical: PartitionSpec('heads', 'layers', 'kv', 'embed') Physical: (None, None, None, 'fsdp') I0423 01:39:04.260505 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/self_attention/query/kernel Shape: float32[2048,16,16,128] Logical: PartitionSpec('embed', 'layers', 'q_heads', 'kv') Physical: ('fsdp', None, None, None) I0423 01:39:04.260533 124229166630720 maxtext_utils.py:1707] params/params/decoder/layers/self_attention/value/kernel Shape: float32[2048,16,16,128] Logical: PartitionSpec('embed', 'layers', 'kv_heads', 'kv_head_dim') Physical: ('fsdp', None, None, None) I0423 01:39:04.260567 124229166630720 maxtext_utils.py:1707] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: PartitionSpec('embed_vocab', 'vocab') Physical: ('fsdp', None) I0423 01:39:04.260602 124229166630720 maxtext_utils.py:1707] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: PartitionSpec('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0423 01:39:04.965895 124229166630720 train.py:155] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0423 01:39:04.965991 124229166630720 train.py:155] train/xent Physical: float32[8,2048]............................................. ('fsdp', None). I0423 01:39:04.978470 124229166630720 train.py:162] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0423 01:39:04.978524 124229166630720 train.py:162] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None). I0423 01:39:05.767811 124229166630720 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. I0423 01:39:05.768421 124229166630720 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0423 01:39:05.768570 124229166630720 metric_logger.py:301] number parameters: 1.104 billion I0423 01:39:10.261955 124229166630720 checkpointing.py:772] Waiting for step 0 to finish before checkpoint... I0423 01:39:10.383416 124229166630720 checkpointing.py:776] Waited 0.12144136428833008 seconds for step 0 to finish before starting checkpointing. I0423 01:39:10.384093 124229166630720 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0423 01:39:10.384244 124229166630720 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0423 01:39:10.384627 124229166630720 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0. I0423 01:39:10.469206 124229166630720 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0423 01:39:10.563465 124098436924992 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0 I0423 01:39:10.568840 124229166630720 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0423 01:39:10.568936 124229166630720 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 I0423 01:39:11.313932 124098426439232 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/items I0423 01:39:11.484929 124098394981952 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776908351224506792, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776908351224506792, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/_CHECKPOINT_METADATA I0423 01:39:11.845874 2278510 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0423 01:39:11.845938 2278510 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0423 01:39:12.563257 124229166630720 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.994866s I0423 01:39:12.568409 124229166630720 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 5.882 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host) I0423 01:39:12.568478 124229166630720 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.098179s (batch_requests_ready=0.094234s, total_serialization_initiated=1.998907s, others=0.005038s) I0423 01:39:12.568553 124229166630720 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.098796s (all_items=0.000020s, per_item={'items': '0.00001955'}, temp_paths=2.098777) I0423 01:39:12.569982 124098447410752 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0423 01:39:12.570077 124229166630720 async_checkpointer.py:561] Finished blocking save. Time taken: 2.185793s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0. I0423 01:39:12.570263 124229166630720 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0423 01:39:12.570439 124097673561664 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0423 01:39:12.570540 124229166630720 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776908350.3840804, 'wait_for_prev_duration_secs': 4.3392181396484375e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776908350.3842654, 'checkpointer_blocking_duration_secs': 2.1859171390533447, 'get_old_steps_start_time': 1776908352.5702, 'get_old_steps_duration_secs': 2.8371810913085938e-05, 'checkpoint_manager_blocking_start_time': 1776908350.3839824, 'checkpoint_manager_blocking_duration_secs': 2.1865296363830566} I0423 01:39:12.570653 124229166630720 checkpointing.py:408] Started an asynchronous checkpoint save for step 0 I0423 01:39:12.570694 124229166630720 max_utils.py:750] Memstats: After params initialized: I0423 01:39:12.570758 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0423 01:39:12.570784 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0423 01:39:12.570807 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0423 01:39:12.570825 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0423 01:39:12.570842 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0423 01:39:12.570858 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0423 01:39:12.570875 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0423 01:39:12.570894 124229166630720 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) I0423 01:39:12.948951 124229166630720 metric_logger.py:196] completed step: 0, seconds: 4.493, TFLOP/s/device: 3.024, Tokens/s/device: 455.837, total_weights: 13328, loss: 10.828, lm_loss: 10.828, perplexity: 50404.086 I0423 01:39:12.949765 124229166630720 metric_logger.py:281] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/tensorboard/' I0423 01:39:13.065030 124229166630720 metric_logger.py:196] completed step: 1, seconds: 2.685, TFLOP/s/device: 5.061, Tokens/s/device: 762.792, total_weights: 12332, loss: 10.828, lm_loss: 10.828, perplexity: 50391.758 I0423 01:39:13.182838 124229166630720 metric_logger.py:196] completed step: 2, seconds: 0.010, TFLOP/s/device: 1375.215, Tokens/s/device: 207287.449, total_weights: 15161, loss: 9.823, lm_loss: 9.823, perplexity: 18444.867 I0423 01:39:13.309140 124098405467712 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/items/array_metadatas/process_0 I0423 01:39:16.076078 124229166630720 train.py:620] Completed eval step 0 I0423 01:39:16.118221 124229166630720 train.py:620] Completed eval step 1 I0423 01:39:16.123603 124229166630720 metric_logger.py:216] eval metrics after step: 4, loss=8.979, perplexity=7936.996, total_weights=26703.0 I0423 01:39:16.124174 124229166630720 metric_logger.py:196] completed step: 3, seconds: 0.119, TFLOP/s/device: 114.562, Tokens/s/device: 17267.983, total_weights: 13327, loss: 9.405, lm_loss: 9.405, perplexity: 12149.331 I0423 01:39:35.628219 124229166630720 metric_logger.py:196] completed step: 4, seconds: 0.116, TFLOP/s/device: 116.900, Tokens/s/device: 17620.387, total_weights: 11939, loss: 9.045, lm_loss: 9.045, perplexity: 8471.842 I0423 01:39:35.639559 124229166630720 metric_logger.py:196] completed step: 5, seconds: 2.942, TFLOP/s/device: 4.619, Tokens/s/device: 696.185, total_weights: 15502, loss: 8.953, lm_loss: 8.953, perplexity: 7728.546 I0423 01:39:35.756791 124229166630720 metric_logger.py:196] completed step: 6, seconds: 19.505, TFLOP/s/device: 0.697, Tokens/s/device: 104.999, total_weights: 13864, loss: 8.775, lm_loss: 8.775, perplexity: 6468.536 I0423 01:39:35.874651 124229166630720 metric_logger.py:196] completed step: 7, seconds: 0.007, TFLOP/s/device: 1817.676, Tokens/s/device: 273979.933, total_weights: 12988, loss: 8.688, lm_loss: 8.688, perplexity: 5928.887 I0423 01:39:36.587506 124229166630720 train.py:620] Completed eval step 0 I0423 01:39:36.627360 124229166630720 train.py:620] Completed eval step 1 I0423 01:39:36.630609 124229166630720 metric_logger.py:216] eval metrics after step: 9, loss=8.653, perplexity=5725.923, total_weights=26703.0 I0423 01:39:36.631062 124229166630720 metric_logger.py:196] completed step: 8, seconds: 0.118, TFLOP/s/device: 114.835, Tokens/s/device: 17309.139, total_weights: 13820, loss: 8.740, lm_loss: 8.740, perplexity: 6250.123 I0423 01:39:36.633745 124229166630720 checkpointing.py:772] Waiting for step 9 to finish before checkpoint... I0423 01:39:36.634369 124229166630720 checkpointing.py:776] Waited 0.0006263256072998047 seconds for step 9 to finish before starting checkpointing. I0423 01:39:36.634663 124229166630720 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0423 01:39:59.265682 124097874888256 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 46.696591s (commit=46.210472s, array_metadata_write=0.486119s) I0423 01:39:59.266945 124098447410752 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 258.969 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 48 seconds) (per-host) I0423 01:39:59.267087 124098447410752 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 46.696963s. I0423 01:39:59.525120 124098447410752 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776908351224506792, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/_CHECKPOINT_METADATA I0423 01:39:59.730056 124098447410752 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0423 01:39:59.932265 124098394981952 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776908351224506792, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/_CHECKPOINT_METADATA I0423 01:40:00.119952 124098447410752 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0423 01:40:00.120162 124098447410752 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.548407s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/items I0423 01:40:00.120977 124098447410752 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0/items I0423 01:40:00.352367 124098447410752 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0 I0423 01:40:01.034518 124098447410752 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0`. I0423 01:40:01.035313 124098447410752 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 50.651031s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/0 I0423 01:40:01.035400 124098447410752 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 48.465281s. I0423 01:40:01.035574 124097673561664 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0423 01:40:01.035698 124097673561664 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0423 01:40:01.035760 124097673561664 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0423 01:40:01.035812 124097673561664 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0423 01:40:01.035961 124229166630720 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. W0423 01:40:01.036134 124229166630720 checkpoint_manager.py:1441] Waiting for previous save to complete took 24.401482 seconds. If this number is high, consider checkpointing less frequently. I0423 01:40:01.037429 124229166630720 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0423 01:40:01.037774 124229166630720 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9. I0423 01:40:01.201992 124229166630720 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0423 01:40:01.202108 124229166630720 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 I0423 01:40:01.204583 124098447410752 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9 I0423 01:40:01.933970 124098405467712 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9/items I0423 01:40:04.149242 124229166630720 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.947744s I0423 01:40:04.153859 124229166630720 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 4.058 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 3 seconds) (per-host) I0423 01:40:04.153929 124229166630720 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 3.041417s (batch_requests_ready=0.084903s, total_serialization_initiated=2.952021s, others=0.004494s) I0423 01:40:04.154010 124229166630720 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 3.042056s (all_items=0.000023s, per_item={'items': '0.00002313'}, temp_paths=3.042033) I0423 01:40:04.155935 124097673561664 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0423 01:40:04.156022 124229166630720 async_checkpointer.py:561] Finished blocking save. Time taken: 3.118541s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9. I0423 01:40:04.156249 124229166630720 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0423 01:40:04.156452 124097874888256 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0423 01:40:04.156589 124229166630720 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776908376.6346116, 'wait_for_prev_duration_secs': 24.401482105255127, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776908401.0374577, 'checkpointer_blocking_duration_secs': 3.1186940670013428, 'get_old_steps_start_time': 1776908404.1561666, 'get_old_steps_duration_secs': 4.172325134277344e-05, 'checkpoint_manager_blocking_start_time': 1776908376.634552, 'checkpoint_manager_blocking_duration_secs': 27.522013187408447} I0423 01:40:04.156672 124229166630720 checkpointing.py:408] Started an asynchronous checkpoint save for step 9 I0423 01:40:04.156703 124229166630720 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0423 01:40:04.883353 124098246084160 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9/items/array_metadatas/process_0 I0423 01:40:39.287545 124098235598400 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 35.132838s (commit=34.656495s, array_metadata_write=0.476343s) I0423 01:40:39.288647 124097673561664 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 331.013 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 38 seconds) (per-host) I0423 01:40:39.288704 124097673561664 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 35.132616s. I0423 01:40:39.814014 124097673561664 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0423 01:40:40.194952 124097673561664 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0423 01:40:40.195231 124097673561664 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.568984s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9/items I0423 01:40:40.196089 124097673561664 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9/items I0423 01:40:40.437267 124097673561664 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9 I0423 01:40:41.138599 124097673561664 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9`. I0423 01:40:41.139356 124097673561664 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 40.101881s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_07_eval/checkpoints/9 I0423 01:40:41.139429 124097673561664 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 36.983342s. I0423 01:40:41.139599 124097874888256 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0423 01:40:41.139719 124097874888256 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0423 01:40:41.139785 124097874888256 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0423 01:40:41.139830 124097874888256 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0423 01:40:41.139959 124229166630720 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. I0423 01:40:41.140113 124229166630720 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0423 01:40:41.140980 124229166630720 metric_logger.py:196] completed step: 9, seconds: 0.118, TFLOP/s/device: 115.558, Tokens/s/device: 17418.224, total_weights: 12300, loss: 8.710, lm_loss: 8.710, perplexity: 6065.008 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops