2026-04-16 19:09:57.384249: 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 19:09:57.501169 137725793389696 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 19:10:57.479930 137725793389696 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 19:10:57.480032 137725793389696 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 19:10:57.480085 137725793389696 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 19:10:57.480110 137725793389696 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 19:10:57.480134 137725793389696 train_utils.py:377] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0416 19:10:57.480212 137725793389696 train.py:811] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 19:10:57.572632 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:10:57.972321 137725793389696 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 19:10:57.972486 137725793389696 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 19:10:57.972713 137725793389696 checkpointing.py:688] Setting up checkpoint logger... I0416 19:10:57.972753 137725793389696 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 19:10:57.972791 137725793389696 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 19:10:57.973473 137725793389696 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 0x7d4232df8c80>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 19:11:00.389139 137725793389696 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 19:11:00.389326 137725793389696 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 0x7d3bb653dc40>}, handler_registry=None I0416 19:11:00.389570 137725793389696 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d3bb653dc40>` 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 19:11:00.389620 137725793389696 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d3bb653e210>` 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 19:11:00.389651 137725793389696 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 0x7d3bb653dc40>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d3bb653dc40>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d3bb653e210>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d3bb653e210>}). I0416 19:11:00.389949 137725793389696 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 19:11:00.390000 137725793389696 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7d3bb6531ee0> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 19:11:00.520070 137725793389696 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints I0416 19:11:00.520294 137725793389696 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_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7d3bb653c260> I0416 19:11:00.520369 137725793389696 checkpointing.py:302] Checkpoint manager created! W0416 19:11:00.537479 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:11:00.732686 137725793389696 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 19:11:00.732844 137725793389696 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:11:00.824281 137725793389696 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 19:11:00.824359 137725793389696 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:11:00.838532 137725793389696 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 19:11:00.838580 137725793389696 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:11:00.859696 137725793389696 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 19:11:00.859750 137725793389696 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:11:00.874033 137725793389696 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 19:11:00.874099 137725793389696 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:11:00.888386 137725793389696 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 19:11:00.888433 137725793389696 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:11:00.909993 137725793389696 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 19:11:00.910062 137725793389696 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:11:00.928243 137725793389696 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0416 19:11:00.928296 137725793389696 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). I0416 19:11:01.134186 137725793389696 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 19:11:01.134284 137725793389696 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 19:11:01.184847 4022459 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 19:11:01.578958 137725793389696 maxtext_utils.py:1796] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: P('norm',) Physical: (None,) I0416 19:11:01.579085 137725793389696 maxtext_utils.py:1796] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0416 19:11:01.579128 137725793389696 maxtext_utils.py:1796] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0416 19:11:01.579176 137725793389696 maxtext_utils.py:1796] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: P('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0416 19:11:01.579218 137725793389696 maxtext_utils.py:1796] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0416 19:11:01.579246 137725793389696 maxtext_utils.py:1796] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0416 19:11:01.579286 137725793389696 maxtext_utils.py:1796] 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 19:11:01.579324 137725793389696 maxtext_utils.py:1796] 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 19:11:01.579353 137725793389696 maxtext_utils.py:1796] 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 19:11:01.579378 137725793389696 maxtext_utils.py:1796] 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 19:11:01.579412 137725793389696 maxtext_utils.py:1796] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: P('embed_vocab', 'vocab') Physical: ('fsdp', None) I0416 19:11:01.579447 137725793389696 maxtext_utils.py:1796] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: P('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0416 19:11:02.013790 137725793389696 train.py:157] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0416 19:11:02.013870 137725793389696 train.py:157] train/xent Physical: float32[8,2048]............................................. ('fsdp', None). I0416 19:11:02.027818 137725793389696 train.py:164] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length'). I0416 19:11:02.027869 137725793389696 train.py:164] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None). W0416 19:11:02.666097 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:11:02.790887 137725793389696 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 19:11:02.791363 137725793389696 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 19:11:02.791502 137725793389696 metric_logger.py:289] number parameters: 1.104 billion W0416 19:11:03.692731 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:11:03.792126 137725793389696 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 19:11:03.909214 137725793389696 checkpointing.py:798] Waited 0.11712813377380371 seconds for step 0 to finish before starting checkpointing. I0416 19:11:03.909742 137725793389696 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 19:11:03.909901 137725793389696 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 19:11:03.910367 137725793389696 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0. I0416 19:11:03.997108 137725793389696 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 19:11:04.081236 137618295621184 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0 I0416 19:11:04.089232 137725793389696 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0416 19:11:04.089322 137725793389696 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 19:11:04.301620 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.312295 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.319196 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.333309 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.348467 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.354642 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.360934 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:04.364925 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:11:04.805508 137618285135424 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/items I0416 19:11:04.950336 137618253678144 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776366664709570595, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776366664709570595, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/_CHECKPOINT_METADATA I0416 19:11:05.319761 4024562 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 19:11:05.319811 4024562 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 19:11:06.195250 137725793389696 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.106387s I0416 19:11:06.200180 137725793389696 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 5.605 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host) I0416 19:11:06.200254 137725793389696 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.201937s (batch_requests_ready=0.086589s, total_serialization_initiated=2.110563s, others=0.004785s) I0416 19:11:06.200352 137725793389696 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.202789s (all_items=0.000021s, per_item={'items': '0.00002098'}, temp_paths=2.202768) I0416 19:11:06.201985 137618190763584 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 19:11:06.202085 137725793389696 async_checkpointer.py:561] Finished blocking save. Time taken: 2.292143s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0. I0416 19:11:06.202303 137725793389696 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 19:11:06.202527 137618306106944 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 19:11:06.202633 137725793389696 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776366663.9097285, 'wait_for_prev_duration_secs': 4.2438507080078125e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776366663.9099228, 'checkpointer_blocking_duration_secs': 2.2922816276550293, 'get_old_steps_start_time': 1776366666.2022364, 'get_old_steps_duration_secs': 2.765655517578125e-05, 'checkpoint_manager_blocking_start_time': 1776366663.909631, 'checkpoint_manager_blocking_duration_secs': 2.2929723262786865} I0416 19:11:06.202766 137725793389696 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 19:11:06.202825 137725793389696 max_utils.py:750] Memstats: After params initialized: I0416 19:11:06.202881 137725793389696 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_0(process=0,(0,0,0,0)) I0416 19:11:06.202906 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0416 19:11:06.202926 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0416 19:11:06.202944 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0416 19:11:06.202961 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0416 19:11:06.202978 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0416 19:11:06.202994 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0416 19:11:06.203010 137725793389696 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) W0416 19:11:06.209017 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:06.215015 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:11:06.219430 4022459 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:11:06.407229 137725793389696 metric_logger.py:185] completed step: 0, seconds: 1.000, TFLOP/s/device: 13.586, Tokens/s/device: 2047.826, total_weights: 16384, loss: 10.874 I0416 19:11:06.408150 137725793389696 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/tensorboard/' I0416 19:11:06.523262 137725793389696 metric_logger.py:185] completed step: 1, seconds: 2.614, TFLOP/s/device: 5.199, Tokens/s/device: 783.613, total_weights: 16384, loss: 10.874 I0416 19:11:06.641897 137725793389696 metric_logger.py:185] completed step: 2, seconds: 0.006, TFLOP/s/device: 2451.665, Tokens/s/device: 369541.682, total_weights: 16384, loss: 10.276 I0416 19:11:06.760076 137725793389696 metric_logger.py:185] completed step: 3, seconds: 0.117, TFLOP/s/device: 116.475, Tokens/s/device: 17556.342, total_weights: 16384, loss: 9.282 I0416 19:11:06.764592 137725793389696 checkpointing.py:794] Waiting for step 5 to finish before checkpoint... I0416 19:11:06.937224 137618264163904 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/items/array_metadatas/process_0 I0416 19:11:06.996366 137725793389696 checkpointing.py:798] Waited 0.23174500465393066 seconds for step 5 to finish before starting checkpointing. I0416 19:11:06.996750 137725793389696 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 19:11:44.301543 137618211735104 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 38.100774s (commit=37.628020s, array_metadata_write=0.472755s) I0416 19:11:44.302490 137618190763584 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 313.535 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 40 seconds) (per-host) I0416 19:11:44.302545 137618190763584 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 38.100412s. I0416 19:11:44.554275 137618190763584 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776366664709570595, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/_CHECKPOINT_METADATA I0416 19:11:44.744959 137618190763584 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 19:11:44.946750 137618253678144 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776366664709570595, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/_CHECKPOINT_METADATA I0416 19:11:45.177793 137618190763584 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 19:11:45.178457 137618190763584 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.576671s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/items I0416 19:11:45.179108 137618190763584 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0/items I0416 19:11:45.436529 137618190763584 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0 I0416 19:11:46.154687 137618190763584 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0`. I0416 19:11:46.155345 137618190763584 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 42.245409s. directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/0 I0416 19:11:46.155420 137618190763584 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 39.953289s. I0416 19:11:46.155612 137618306106944 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 19:11:46.155720 137618306106944 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 19:11:46.155781 137618306106944 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 19:11:46.155826 137618306106944 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 19:11:46.155977 137725793389696 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 19:11:46.156114 137725793389696 checkpoint_manager.py:1441] Waiting for previous save to complete took 39.159363 seconds. If this number is high, consider checkpointing less frequently. I0416 19:11:46.156916 137725793389696 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 5 I0416 19:11:46.157212 137725793389696 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5. I0416 19:11:46.334233 137725793389696 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0416 19:11:46.334373 137618306106944 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5 I0416 19:11:46.334448 137725793389696 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 19:11:47.053485 137618180277824 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5/items I0416 19:11:57.635629 137725793389696 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 11.302126s I0416 19:11:57.639757 137725793389696 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.083 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0416 19:11:57.639828 137725793389696 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 11.397292s (batch_requests_ready=0.088027s, total_serialization_initiated=11.305231s, others=0.004034s) I0416 19:11:57.639907 137725793389696 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 11.397799s (all_items=0.000017s, per_item={'items': '0.00001693'}, temp_paths=11.397782) I0416 19:11:57.641400 137618413061696 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 19:11:57.641497 137725793389696 async_checkpointer.py:561] Finished blocking save. Time taken: 11.484537s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5. I0416 19:11:57.641701 137725793389696 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=5] Starting CheckpointManager Save Finalize thread=save_finalize I0416 19:11:57.641869 137618190763584 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 19:11:57.641969 137725793389696 standard_logger.py:34] {'step': 5, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776366666.9967232, 'wait_for_prev_duration_secs': 39.15936303138733, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776366706.156941, 'checkpointer_blocking_duration_secs': 11.484680652618408, 'get_old_steps_start_time': 1776366717.641637, 'get_old_steps_duration_secs': 2.09808349609375e-05, 'checkpoint_manager_blocking_start_time': 1776366666.9966595, 'checkpoint_manager_blocking_duration_secs': 50.64528250694275} I0416 19:11:57.642103 137725793389696 checkpointing.py:409] Started an asynchronous checkpoint save for step 5 I0416 19:11:57.642555 137725793389696 metric_logger.py:185] completed step: 4, seconds: 0.119, TFLOP/s/device: 114.652, Tokens/s/device: 17281.534, total_weights: 16384, loss: 8.327 I0416 19:11:57.649099 137725793389696 metric_logger.py:185] completed step: 5, seconds: 0.118, TFLOP/s/device: 114.971, Tokens/s/device: 17329.644, total_weights: 16384, loss: 7.367 I0416 19:11:57.765289 137725793389696 metric_logger.py:185] completed step: 6, seconds: 50.883, TFLOP/s/device: 0.267, Tokens/s/device: 40.249, total_weights: 16384, loss: 6.459 I0416 19:11:57.883868 137725793389696 metric_logger.py:185] completed step: 7, seconds: 0.005, TFLOP/s/device: 2602.898, Tokens/s/device: 392337.165, total_weights: 16384, loss: 5.622 I0416 19:11:58.002586 137725793389696 metric_logger.py:185] completed step: 8, seconds: 0.117, TFLOP/s/device: 115.797, Tokens/s/device: 17454.149, total_weights: 16384, loss: 4.864 I0416 19:11:58.120389 137725793389696 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 19:11:58.121162 137725793389696 checkpointing.py:798] Waited 0.0007939338684082031 seconds for step 9 to finish before starting checkpointing. I0416 19:11:58.121405 137725793389696 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=5][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 19:11:58.453375 137618423547456 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5/items/array_metadatas/process_0 I0416 19:12:32.131221 137618211735104 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 34.490846s (commit=33.994949s, array_metadata_write=0.495897s) I0416 19:12:32.132221 137618413061696 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 275.373 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 45 seconds) (per-host) I0416 19:12:32.132327 137618413061696 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 34.490771s. I0416 19:12:32.574672 137618413061696 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 19:12:33.046683 137618413061696 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 19:12:33.046851 137618413061696 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.624030s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5/items I0416 19:12:33.047467 137618413061696 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5/items I0416 19:12:33.307209 137618413061696 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5 I0416 19:12:34.035811 137618413061696 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5`. I0416 19:12:34.036437 137618413061696 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 47.879484s. directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/5 I0416 19:12:34.036513 137618413061696 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 36.394959s. I0416 19:12:34.036686 137618190763584 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 19:12:34.036788 137618190763584 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 19:12:34.036853 137618190763584 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=5] CheckpointManager Save Finalize is syncing with other hosts... I0416 19:12:34.036903 137618190763584 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=5] CheckpointManager Save Finalize is done on all hosts. I0416 19:12:34.037034 137725793389696 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. W0416 19:12:34.037148 137725793389696 checkpoint_manager.py:1441] Waiting for previous save to complete took 35.915753 seconds. If this number is high, consider checkpointing less frequently. I0416 19:12:34.037341 137725793389696 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 19:12:34.037613 137725793389696 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9. I0416 19:12:34.217218 137725793389696 jax_array_handlers.py:347] Scheduling D2H of 39 prioritized jax.Array. I0416 19:12:34.217307 137725793389696 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 19:12:34.226294 137618413061696 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9 I0416 19:12:34.931095 137618402575936 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9/items I0416 19:12:45.420331 137725793389696 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 11.203481s I0416 19:12:45.424369 137725793389696 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.092 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0416 19:12:45.424430 137725793389696 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 11.297661s (batch_requests_ready=0.087075s, total_serialization_initiated=11.206651s, others=0.003934s) I0416 19:12:45.424498 137725793389696 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 11.298137s (all_items=0.000011s, per_item={'items': '0.00001073'}, temp_paths=11.298126) I0416 19:12:45.426114 137618413061696 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 19:12:45.426200 137725793389696 async_checkpointer.py:561] Finished blocking save. Time taken: 11.388818s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9. I0416 19:12:45.426364 137725793389696 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 19:12:45.426520 137618190763584 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 19:12:45.426626 137725793389696 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776366718.1213808, 'wait_for_prev_duration_secs': 35.91575264930725, 'time_between_consecutive_saves_sec': 11.965540409088135, 'checkpointer_blocking_start_time': 1776366754.0373645, 'checkpointer_blocking_duration_secs': 11.388941049575806, 'get_old_steps_start_time': 1776366765.426317, 'get_old_steps_duration_secs': 1.5974044799804688e-05, 'checkpoint_manager_blocking_start_time': 1776366718.121348, 'checkpoint_manager_blocking_duration_secs': 47.305254220962524} I0416 19:12:45.426738 137725793389696 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 19:12:45.426769 137725793389696 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 19:12:46.204342 137617676961344 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9/items/array_metadatas/process_0 I0416 19:13:23.951453 137618306106944 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 38.526590s (commit=38.011091s, array_metadata_write=0.515499s) I0416 19:13:23.952626 137618413061696 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 253.619 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 49 seconds) (per-host) I0416 19:13:23.952732 137618413061696 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 38.526486s. I0416 19:13:24.361334 137618413061696 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 19:13:24.813541 137618413061696 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 19:13:24.814303 137618413061696 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.600622s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9/items I0416 19:13:24.814985 137618413061696 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9/items I0416 19:13:25.069691 137618413061696 atomicity.py:608] Finalizing gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9 I0416 19:13:25.765969 137618413061696 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9`. I0416 19:13:25.766608 137618413061696 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 51.729232s. directory=gs://wanglance-maxtext/linen_ckpt_feat_nnx_post_train_fixes_20260416_181521/linen_feat_nnx_post_train_fixes_20260416_181521_15_ocdbt_true/checkpoints/9 I0416 19:13:25.766673 137618413061696 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 40.340428s. I0416 19:13:25.766835 137618190763584 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 19:13:25.766943 137618190763584 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 19:13:25.767003 137618190763584 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 19:13:25.767053 137618190763584 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 19:13:25.767507 137725793389696 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 19:13:25.768175 137725793389696 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 19:13:25.769493 137725793389696 metric_logger.py:185] completed step: 9, seconds: 0.118, TFLOP/s/device: 114.750, Tokens/s/device: 17296.421, total_weights: 16384, loss: 4.189 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops