2026-04-23 02:22:47.255881: 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 00:00:1776910967.269001 2318256 cuda_dnn.cc:8579] Unable to register cuDNN factory: Attempting to register factory for plugin cuDNN when one has already been registered E0000 00:00:1776910967.272829 2318256 cuda_blas.cc:1407] Unable to register cuBLAS factory: Attempting to register factory for plugin cuBLAS when one has already been registered W0000 00:00:1776910967.284355 2318256 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776910967.284373 2318256 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776910967.284374 2318256 computation_placer.cc:177] computation placer already registered. Please check linkage and avoid linking the same target more than once. W0000 00:00:1776910967.284376 2318256 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 02:22:50.958630: 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 02:22:51.094091 140150244964160 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0423 02:23:50.575204 140150244964160 max_utils.py:800] System Information: Jax Version: 0.8.1 I0423 02:23:50.575471 140150244964160 max_utils.py:801] System Information: Jaxlib Version: 0.8.1 I0423 02:23:50.575523 140150244964160 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 02:23:50.575557 140150244964160 train_utils.py:348] WARNING: 'dataset_path' might be pointing your local file system I0423 02:23:50.575582 140150244964160 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0423 02:23:50.575752 140150244964160 train.py:703] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. I0423 02:23:51.227574 140150244964160 maxtext_utils.py:1604] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0423 02:23:51.227844 140150244964160 checkpointing.py:677] Setting up checkpoint logger... I0423 02:23:51.227890 140150244964160 checkpointing.py:233] Creating checkpoint manager with ocdbt=False and zarr3=True I0423 02:23:51.227926 140150244964160 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0423 02:23:51.228380 140150244964160 base_pytree_checkpoint_handler.py:411] Created BasePyTreeCheckpointHandler: use_ocdbt=False, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x7f77009bb080>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0423 02:23:53.593259 140150244964160 checkpointing.py:265] Enabling policy for fixed interval checkpointing. I0423 02:23:53.593633 140150244964160 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 0x7f752c145d00>}, handler_registry=None I0423 02:23:53.593871 140150244964160 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f752c145d00>` 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 02:23:53.593909 140150244964160 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f752c146240>` 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 02:23:53.593939 140150244964160 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 0x7f752c145d00>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f752c145d00>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f752c146240>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f752c146240>}). I0423 02:23:53.594229 140150244964160 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0423 02:23:53.594281 140150244964160 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7f752c160900> timeout: 600 secs and primary_host=0 for async checkpoint writes I0423 02:23:53.724709 140150244964160 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints I0423 02:23:53.724954 140150244964160 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_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f752c145040> I0423 02:23:53.725245 140150244964160 checkpointing.py:301] Checkpoint manager created! I0423 02:23:54.106975 140150244964160 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0423 02:23:54.107091 140150244964160 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 02:23:54.389470 140150244964160 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0423 02:23:54.389560 140150244964160 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 02:23:54.402029 140150244964160 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0423 02:23:54.402092 140150244964160 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0423 02:23:54.421336 140150244964160 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 02:23:54.421396 140150244964160 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 02:23:54.433929 140150244964160 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 02:23:54.433979 140150244964160 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 02:23:54.446492 140150244964160 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 02:23:54.446544 140150244964160 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 02:23:54.466272 140150244964160 attentions.py:1198] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0423 02:23:54.466337 140150244964160 attentions.py:1198] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0423 02:23:54.482019 140150244964160 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0423 02:23:54.482086 140150244964160 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). I0423 02:23:54.635589 140150244964160 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint I0423 02:23:54.635695 140150244964160 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 02:23:55.257937 140150244964160 maxtext_utils.py:1707] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: PartitionSpec('norm',) Physical: (None,) I0423 02:23:55.258398 140150244964160 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 02:23:55.258451 140150244964160 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 02:23:55.258502 140150244964160 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 02:23:55.258550 140150244964160 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 02:23:55.258579 140150244964160 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 02:23:55.258619 140150244964160 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 02:23:55.258659 140150244964160 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 02:23:55.258688 140150244964160 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 02:23:55.258713 140150244964160 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 02:23:55.258748 140150244964160 maxtext_utils.py:1707] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: PartitionSpec('embed_vocab', 'vocab') Physical: ('fsdp', None) I0423 02:23:55.258791 140150244964160 maxtext_utils.py:1707] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: PartitionSpec('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0423 02:23:55.675912 140150244964160 train.py:155] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0423 02:23:55.676012 140150244964160 train.py:155] train/xent Physical: float32[8,2048]............................................. ('fsdp', None). I0423 02:23:55.687879 140150244964160 train.py:162] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0423 02:23:55.687927 140150244964160 train.py:162] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None). I0423 02:23:56.489759 140150244964160 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 02:23:56.490355 140150244964160 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0423 02:23:56.490503 140150244964160 metric_logger.py:301] number parameters: 1.104 billion I0423 02:23:59.013340 140150244964160 checkpointing.py:772] Waiting for step 0 to finish before checkpoint... I0423 02:23:59.131709 140150244964160 checkpointing.py:776] Waited 0.11834883689880371 seconds for step 0 to finish before starting checkpointing. I0423 02:23:59.132349 140150244964160 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0423 02:23:59.132502 140150244964160 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0423 02:23:59.132896 140150244964160 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0. I0423 02:23:59.221037 140150244964160 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0423 02:23:59.309247 140119103243840 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0 I0423 02:23:59.316184 140150244964160 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0423 02:23:59.316286 140150244964160 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 02:24:00.052853 140119092758080 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/items I0423 02:24:00.201922 140118706882112 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776911039965233557, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776911039965233557, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/_CHECKPOINT_METADATA I0423 02:24:00.535613 2320343 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0423 02:24:00.535673 2320343 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0423 02:24:00.882576 140150244964160 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.566825s I0423 02:24:00.883450 140150244964160 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 7.430 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host) I0423 02:24:00.883515 140150244964160 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.661080s (batch_requests_ready=0.089877s, total_serialization_initiated=1.570482s, others=0.000721s) I0423 02:24:00.883598 140150244964160 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.662006s (all_items=0.000021s, per_item={'items': '0.00002098'}, temp_paths=1.661985) I0423 02:24:00.890535 140119113729600 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0423 02:24:00.890692 140150244964160 async_checkpointer.py:561] Finished blocking save. Time taken: 1.758139s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0. I0423 02:24:00.891118 140150244964160 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0423 02:24:00.891540 140118102902336 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0423 02:24:00.891660 140150244964160 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776911039.1323364, 'wait_for_prev_duration_secs': 4.38690185546875e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776911039.1325233, 'checkpointer_blocking_duration_secs': 1.7583231925964355, 'get_old_steps_start_time': 1776911040.8908732, 'get_old_steps_duration_secs': 0.0001423358917236328, 'checkpoint_manager_blocking_start_time': 1776911039.1322532, 'checkpoint_manager_blocking_duration_secs': 1.759376049041748} I0423 02:24:00.891795 140150244964160 checkpointing.py:408] Started an asynchronous checkpoint save for step 0 I0423 02:24:00.891842 140150244964160 max_utils.py:750] Memstats: After params initialized: I0423 02:24:00.891902 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0423 02:24:00.891930 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0423 02:24:00.891953 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0423 02:24:00.891974 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0423 02:24:00.891993 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0423 02:24:00.892012 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0423 02:24:00.892029 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0423 02:24:00.892066 140150244964160 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) I0423 02:24:01.152715 140150244964160 metric_logger.py:196] completed step: 0, seconds: 2.522, TFLOP/s/device: 5.387, Tokens/s/device: 811.953, total_weights: 16384, loss: 10.874, lm_loss: 10.874, perplexity: 52770.941 I0423 02:24:01.153691 140150244964160 metric_logger.py:281] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/tensorboard/' I0423 02:24:01.269477 140150244964160 metric_logger.py:196] completed step: 1, seconds: 2.137, TFLOP/s/device: 6.357, Tokens/s/device: 958.221, total_weights: 16384, loss: 10.874, lm_loss: 10.874, perplexity: 52770.941 I0423 02:24:01.388681 140150244964160 metric_logger.py:196] completed step: 2, seconds: 0.009, TFLOP/s/device: 1496.874, Tokens/s/device: 225625.207, total_weights: 16384, loss: 10.276, lm_loss: 10.276, perplexity: 29019.973 I0423 02:24:01.508780 140150244964160 metric_logger.py:196] completed step: 3, seconds: 0.117, TFLOP/s/device: 116.496, Tokens/s/device: 17559.503, total_weights: 16384, loss: 9.282, lm_loss: 9.282, perplexity: 10739.224 I0423 02:24:01.516889 140150244964160 checkpointing.py:772] Waiting for step 5 to finish before checkpoint... I0423 02:24:01.637890 140118933374528 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_15_ocdbt_false/checkpoints/0/items/array_metadatas/process_0 I0423 02:24:01.747235 140150244964160 checkpointing.py:776] Waited 0.23028969764709473 seconds for step 5 to finish before starting checkpointing. I0423 02:24:01.748651 140150244964160 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0423 02:24:07.567077 140118293743168 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 6.677382s (commit=6.219631s, array_metadata_write=0.457750s) I0423 02:24:07.568221 140119113729600 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 1.479 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 8 seconds) (per-host) I0423 02:24:07.568330 140119113729600 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 6.677579s. I0423 02:24:07.815748 140119113729600 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776911039965233557, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/_CHECKPOINT_METADATA W0423 02:24:07.905320 140119113729600 ocdbt_utils.py:175] [process=0][thread=async_save] Skipping merge of OCDBT checkpoints: No per-process OCDBT checkpoint subdirs found in gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/items, I0423 02:24:08.031621 140119113729600 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 02:24:08.031745 140119113729600 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.176600s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/items I0423 02:24:08.032546 140119113729600 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/items I0423 02:24:08.205146 140118706882112 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776911039965233557, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0/_CHECKPOINT_METADATA I0423 02:24:08.249302 140119113729600 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0 I0423 02:24:08.900527 140119113729600 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_15_ocdbt_false/checkpoints/0`. I0423 02:24:08.901410 140119113729600 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 9.768875s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/0 I0423 02:24:08.901484 140119113729600 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 8.010735s. I0423 02:24:08.901705 140118102902336 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0423 02:24:08.901832 140118102902336 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0423 02:24:08.901903 140118102902336 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0423 02:24:08.901956 140118102902336 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0423 02:24:08.902201 140150244964160 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 02:24:08.902336 140150244964160 checkpoint_manager.py:1441] Waiting for previous save to complete took 7.153703 seconds. If this number is high, consider checkpointing less frequently. I0423 02:24:08.903834 140150244964160 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 5 I0423 02:24:08.904156 140150244964160 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5. I0423 02:24:09.077987 140150244964160 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0423 02:24:09.078104 140150244964160 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 02:24:09.083741 140119113729600 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5 I0423 02:24:09.796202 140150244964160 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.718693s I0423 02:24:09.796653 140150244964160 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 15.259 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 808 milliseconds) (per-host) I0423 02:24:09.796706 140150244964160 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 0.808859s (batch_requests_ready=0.086175s, total_serialization_initiated=0.722338s, others=0.000346s) I0423 02:24:09.796775 140150244964160 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.809427s (all_items=0.000018s, per_item={'items': '0.00001764'}, temp_paths=0.809409) I0423 02:24:09.797837 140118901917248 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0423 02:24:09.797950 140150244964160 async_checkpointer.py:561] Finished blocking save. Time taken: 0.894073s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5. I0423 02:24:09.798159 140150244964160 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=5] Starting CheckpointManager Save Finalize thread=save_finalize I0423 02:24:09.798351 140150244964160 standard_logger.py:34] {'step': 5, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776911041.7486167, 'wait_for_prev_duration_secs': 7.153702735900879, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776911048.9038584, 'checkpointer_blocking_duration_secs': 0.8942182064056396, 'get_old_steps_start_time': 1776911049.798094, 'get_old_steps_duration_secs': 2.6702880859375e-05, 'checkpoint_manager_blocking_start_time': 1776911041.7485173, 'checkpoint_manager_blocking_duration_secs': 8.049810886383057} I0423 02:24:09.798452 140150244964160 checkpointing.py:408] Started an asynchronous checkpoint save for step 5 I0423 02:24:09.799206 140150244964160 metric_logger.py:196] completed step: 4, seconds: 0.119, TFLOP/s/device: 114.160, Tokens/s/device: 17207.481, total_weights: 16384, loss: 8.327, lm_loss: 8.327, perplexity: 4134.812 I0423 02:24:09.802765 140118933374528 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5/items I0423 02:24:09.808391 140150244964160 metric_logger.py:196] completed step: 5, seconds: 0.121, TFLOP/s/device: 112.068, Tokens/s/device: 16892.115, total_weights: 16384, loss: 7.367, lm_loss: 7.367, perplexity: 1583.522 I0423 02:24:09.925219 140150244964160 metric_logger.py:196] completed step: 6, seconds: 8.290, TFLOP/s/device: 1.639, Tokens/s/device: 247.057, total_weights: 16384, loss: 6.459, lm_loss: 6.459, perplexity: 638.363 I0423 02:24:09.929717 140118102902336 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0423 02:24:10.043881 140150244964160 metric_logger.py:196] completed step: 7, seconds: 0.006, TFLOP/s/device: 2101.644, Tokens/s/device: 316782.676, total_weights: 16384, loss: 5.622, lm_loss: 5.622, perplexity: 276.577 I0423 02:24:10.163558 140150244964160 metric_logger.py:196] completed step: 8, seconds: 0.118, TFLOP/s/device: 114.701, Tokens/s/device: 17288.974, total_weights: 16384, loss: 4.864, lm_loss: 4.864, perplexity: 129.523 I0423 02:24:10.281759 140150244964160 checkpointing.py:772] Waiting for step 9 to finish before checkpoint... I0423 02:24:10.282871 140150244964160 checkpointing.py:776] Waited 0.0011556148529052734 seconds for step 9 to finish before starting checkpointing. I0423 02:24:10.283167 140150244964160 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=5][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0423 02:24:10.965038 140118912403008 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_15_ocdbt_false/checkpoints/5/items/array_metadatas/process_0 I0423 02:24:17.420502 140118293743168 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 7.162350s (commit=6.754497s, array_metadata_write=0.407853s) I0423 02:24:17.421484 140118901917248 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 1.463 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 8 seconds) (per-host) I0423 02:24:17.421599 140118901917248 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 7.623599s. W0423 02:24:17.756462 140118901917248 ocdbt_utils.py:175] [process=0][thread=async_save] Skipping merge of OCDBT checkpoints: No per-process OCDBT checkpoint subdirs found in gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5/items, I0423 02:24:17.876794 140118901917248 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 02:24:17.876921 140118901917248 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.183718s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5/items I0423 02:24:17.877746 140118901917248 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5/items I0423 02:24:18.105741 140118901917248 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5 I0423 02:24:18.762967 140118901917248 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_15_ocdbt_false/checkpoints/5`. I0423 02:24:18.763797 140118901917248 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 9.859926s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/5 I0423 02:24:18.763867 140118901917248 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 8.965869s. I0423 02:24:18.764036 140118102902336 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0423 02:24:18.764168 140118102902336 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0423 02:24:18.764218 140118102902336 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=5] CheckpointManager Save Finalize is syncing with other hosts... I0423 02:24:18.764257 140118102902336 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=5] CheckpointManager Save Finalize is done on all hosts. I0423 02:24:18.764407 140150244964160 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=5][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=5. W0423 02:24:18.764522 140150244964160 checkpoint_manager.py:1441] Waiting for previous save to complete took 8.481369 seconds. If this number is high, consider checkpointing less frequently. I0423 02:24:18.764816 140150244964160 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0423 02:24:18.765122 140150244964160 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9. I0423 02:24:18.924686 140118901917248 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9 I0423 02:24:18.936200 140150244964160 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0423 02:24:18.936299 140150244964160 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 02:24:19.588598 140118912403008 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9/items I0423 02:24:24.020718 140150244964160 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 5.084968s I0423 02:24:24.021296 140150244964160 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 2.386 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 5 seconds) (per-host) I0423 02:24:24.021351 140150244964160 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 5.172892s (batch_requests_ready=0.084374s, total_serialization_initiated=5.088073s, others=0.000446s) I0423 02:24:24.021418 140150244964160 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 5.173905s (all_items=0.000014s, per_item={'items': '0.00001407'}, temp_paths=5.173891) I0423 02:24:24.027063 140118922888768 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0423 02:24:24.027155 140150244964160 async_checkpointer.py:561] Finished blocking save. Time taken: 5.262292s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9. I0423 02:24:24.027348 140150244964160 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0423 02:24:24.027523 140118102902336 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0423 02:24:24.027637 140150244964160 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776911050.2831395, 'wait_for_prev_duration_secs': 8.48136854171753, 'time_between_consecutive_saves_sec': 1.3811686038970947, 'checkpointer_blocking_start_time': 1776911058.7648396, 'checkpointer_blocking_duration_secs': 5.262445449829102, 'get_old_steps_start_time': 1776911064.0272958, 'get_old_steps_duration_secs': 1.9788742065429688e-05, 'checkpoint_manager_blocking_start_time': 1776911050.2831047, 'checkpoint_manager_blocking_duration_secs': 13.744508028030396} I0423 02:24:24.027755 140150244964160 checkpointing.py:408] Started an asynchronous checkpoint save for step 9 I0423 02:24:24.027786 140150244964160 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0423 02:24:24.852842 140118933374528 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_15_ocdbt_false/checkpoints/9/items/array_metadatas/process_0 I0423 02:24:30.305111 140118912403008 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 6.279230s (commit=5.865829s, array_metadata_write=0.413401s) I0423 02:24:30.306214 140118922888768 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 1.077 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0423 02:24:30.306334 140118922888768 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 6.279124s. W0423 02:24:30.646634 140118922888768 ocdbt_utils.py:175] [process=0][thread=async_save] Skipping merge of OCDBT checkpoints: No per-process OCDBT checkpoint subdirs found in gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9/items, I0423 02:24:30.794790 140118922888768 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 02:24:30.794924 140118922888768 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.204854s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9/items I0423 02:24:30.795655 140118922888768 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9/items I0423 02:24:31.023123 140118922888768 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9 I0423 02:24:31.724742 140118922888768 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_15_ocdbt_false/checkpoints/9`. I0423 02:24:31.725491 140118922888768 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 12.960640s. directory=gs://wanglance-maxtext/linen_ckpt_main_20260423_012248/linen_main_20260423_012248_15_ocdbt_false/checkpoints/9 I0423 02:24:31.725568 140118922888768 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 7.698359s. I0423 02:24:31.725803 140118102902336 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0423 02:24:31.725925 140118102902336 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0423 02:24:31.725968 140118102902336 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0423 02:24:31.726006 140118102902336 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0423 02:24:31.726138 140150244964160 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 02:24:31.726208 140150244964160 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0423 02:24:31.727188 140150244964160 metric_logger.py:196] completed step: 9, seconds: 0.118, TFLOP/s/device: 114.777, Tokens/s/device: 17300.512, total_weights: 16384, loss: 4.189, lm_loss: 4.189, perplexity: 65.979 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops