MaxView

2026-04-16 02:07:41.934216: 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 02:07:42.052003 138873210453120 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag.
I0416 02:08:31.169890 138873210453120 max_utils.py:800] System Information: Jax Version: 0.9.2
I0416 02:08:31.170008 138873210453120 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0416 02:08:31.170061 138873210453120 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 02:08:31.170088 138873210453120 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system
I0416 02:08:31.170109 138873210453120 train_utils.py:377] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0416 02:08:31.170192 138873210453120 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper.
W0416 02:08:31.264082 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:31.660021 138873210453120 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0416 02:08:31.757797 138873210453120 checkpointing.py:688] Setting up checkpoint logger...
I0416 02:08:31.757906 138873210453120 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0416 02:08:31.757947 138873210453120 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None
I0416 02:08:31.758162 138873210453120 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 0x7e4d597f4f20>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0416 02:08:34.144110 138873210453120 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0416 02:08:34.144312 138873210453120 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 0x7e46da516cc0>}, handler_registry=None
I0416 02:08:34.144589 138873210453120 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e46da516cc0>` 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 02:08:34.144631 138873210453120 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e46da594ce0>` 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 02:08:34.144659 138873210453120 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 0x7e46da516cc0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e46da516cc0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e46da594ce0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e46da594ce0>}).
I0416 02:08:34.145201 138873210453120 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28
I0416 02:08:34.145255 138873210453120 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7e46dad85940> timeout: 600 secs and primary_host=0 for async checkpoint writes
I0416 02:08:34.269165 138873210453120 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints
I0416 02:08:34.269406 138873210453120 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/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7e46da595760>
I0416 02:08:34.269487 138873210453120 checkpointing.py:302] Checkpoint manager created!
W0416 02:08:34.286244 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:34.502821 138873210453120 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0416 02:08:34.502934 138873210453120 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
W0416 02:08:34.613661 3526102 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 02:08:34.807175 138873210453120 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:08:34.807263 138873210453120 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:08:34.812473 138873210453120 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:08:34.812523 138873210453120 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:08:34.826629 138873210453120 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:08:34.826682 138873210453120 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:08:34.840151 138873210453120 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:08:34.840198 138873210453120 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:08:34.861124 138873210453120 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 02:08:34.861184 138873210453120 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:08:34.874644 138873210453120 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 02:08:34.874695 138873210453120 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:08:34.888200 138873210453120 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 02:08:34.888250 138873210453120 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:08:34.915997 138873210453120 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0416 02:08:34.916080 138873210453120 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:08:34.933135 138873210453120 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0416 02:08:34.933189 138873210453120 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None).
W0416 02:08:35.651537 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:35.771469 138873210453120 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 02:08:35.772077 138873210453120 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter.
I0416 02:08:35.773410 138873210453120 metric_logger.py:289] number parameters: 1.104 billion
W0416 02:08:36.397798 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:36.495199 138873210453120 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0416 02:08:36.611452 138873210453120 checkpointing.py:798] Waited 0.11623477935791016 seconds for step 0 to finish before starting checkpointing.
I0416 02:08:36.611922 138873210453120 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 02:08:36.612092 138873210453120 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0
I0416 02:08:36.612506 138873210453120 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0.
I0416 02:08:36.692602 138873210453120 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient
I0416 02:08:36.770018 138765746046528 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0
I0416 02:08:36.786607 138873210453120 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 02:08:36.786705 138873210453120 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 02:08:37.442168 138765735560768 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/items
W0416 02:08:37.468552 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.480492 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.494891 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.511137 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.516627 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.522378 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.527424 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.531709 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:37.619781 138765695714880 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305317346452616, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776305317346452616, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:08:37.970363 138873210453120 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.184839s
I0416 02:08:37.971383 138873210453120 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 9.661 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host)
I0416 02:08:37.971452 138873210453120 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.277464s (batch_requests_ready=0.083885s, total_serialization_initiated=1.192730s, others=0.000849s)
I0416 02:08:37.971540 138873210453120 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.278090s (all_items=0.000019s, per_item={'items': '0.00001884'}, temp_paths=1.278071)
I0416 02:08:37.972838 138765685229120 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 02:08:37.973004 138873210453120 async_checkpointer.py:561] Finished blocking save. Time taken: 1.360868s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0.
I0416 02:08:37.973211 138873210453120 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 02:08:37.973677 138765735560768 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 02:08:37.974716 138873210453120 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776305316.6119084, 'wait_for_prev_duration_secs': 4.2438507080078125e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776305316.6121135, 'checkpointer_blocking_duration_secs': 1.3609981536865234, 'get_old_steps_start_time': 1776305317.9731379, 'get_old_steps_duration_secs': 2.956390380859375e-05, 'checkpoint_manager_blocking_start_time': 1776305316.6118188, 'checkpoint_manager_blocking_duration_secs': 1.3628573417663574}
I0416 02:08:37.974833 138873210453120 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0416 02:08:37.974905 138873210453120 max_utils.py:750] 
Memstats: After params initialized:
I0416 02:08:37.975035 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0))
I0416 02:08:37.975080 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0))
I0416 02:08:37.975107 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0))
I0416 02:08:37.975128 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0))
I0416 02:08:37.975150 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0))
I0416 02:08:37.975170 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0))
I0416 02:08:37.975190 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0))
I0416 02:08:37.975209 138873210453120 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0))
I0416 02:08:37.987100 3528277 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json
I0416 02:08:37.987181 3528277 google_auth_provider.cc:156] Using OAuth2 AuthProvider
W0416 02:08:37.991029 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:37.998836 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:08:38.004376 3526102 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:08:38.323715 138873210453120 metric_logger.py:185] completed step: 0, seconds: 0.721, TFLOP/s/device: 18.857, Tokens/s/device: 2842.384, total_weights: 16384, loss: 10.881
I0416 02:08:38.324671 138873210453120 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/tensorboard/'
I0416 02:08:38.436598 138873210453120 metric_logger.py:185] completed step: 1, seconds: 1.825, TFLOP/s/device: 7.447, Tokens/s/device: 1122.445, total_weights: 16384, loss: 10.881
I0416 02:08:38.555875 138873210453120 metric_logger.py:185] completed step: 2, seconds: 0.018, TFLOP/s/device: 741.858, Tokens/s/device: 111820.912, total_weights: 16384, loss: 9.779
I0416 02:08:38.674899 138873210453120 metric_logger.py:185] completed step: 3, seconds: 0.106, TFLOP/s/device: 128.606, Tokens/s/device: 19384.944, total_weights: 16384, loss: 8.837
I0416 02:08:38.746502 138765746046528 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/items/array_metadatas/process_0
I0416 02:08:57.898643 138873210453120 metric_logger.py:185] completed step: 4, seconds: 0.120, TFLOP/s/device: 113.397, Tokens/s/device: 17092.448, total_weights: 16384, loss: 7.961
I0416 02:08:57.908553 138873210453120 metric_logger.py:185] completed step: 5, seconds: 0.118, TFLOP/s/device: 114.746, Tokens/s/device: 17295.837, total_weights: 16384, loss: 7.226
I0416 02:08:58.023220 138873210453120 metric_logger.py:185] completed step: 6, seconds: 19.225, TFLOP/s/device: 0.707, Tokens/s/device: 106.529, total_weights: 16384, loss: 6.669
I0416 02:08:58.141659 138873210453120 metric_logger.py:185] completed step: 7, seconds: 0.007, TFLOP/s/device: 2025.813, Tokens/s/device: 305352.617, total_weights: 16384, loss: 6.286
I0416 02:08:58.260678 138873210453120 metric_logger.py:185] completed step: 8, seconds: 0.116, TFLOP/s/device: 117.101, Tokens/s/device: 17650.760, total_weights: 16384, loss: 6.048
I0416 02:08:58.379905 138873210453120 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0416 02:08:58.381030 138873210453120 checkpointing.py:798] Waited 0.0011436939239501953 seconds for step 9 to finish before starting checkpointing.
I0416 02:08:58.381310 138873210453120 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0416 02:09:07.778512 138765725075008 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 29.788658s (commit=29.353033s, array_metadata_write=0.435626s)
I0416 02:09:07.779767 138765685229120 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 406.514 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 31 seconds) (per-host)
I0416 02:09:07.779881 138765685229120 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 29.806926s.
I0416 02:09:08.074544 138765685229120 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305317346452616, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:09:08.259474 138765685229120 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 02:09:08.475112 138765695714880 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305317346452616, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:09:08.708245 138765685229120 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 02:09:08.708905 138765685229120 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.595215s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/items
I0416 02:09:08.709665 138765685229120 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0/items
I0416 02:09:08.948861 138765685229120 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0
I0416 02:09:09.604803 138765685229120 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0`.
I0416 02:09:09.605556 138765685229120 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 32.993431s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/0
I0416 02:09:09.605631 138765685229120 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 31.632677s.
I0416 02:09:09.605753 138765735560768 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 02:09:09.605803 138765735560768 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 02:09:09.605859 138765735560768 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0416 02:09:09.605902 138765735560768 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0416 02:09:09.606069 138873210453120 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 02:09:09.606227 138873210453120 checkpoint_manager.py:1441] Waiting for previous save to complete took 11.224919 seconds. If this number is high, consider checkpointing less frequently.
I0416 02:09:09.606926 138873210453120 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9
I0416 02:09:09.607259 138873210453120 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9.
I0416 02:09:09.788271 138765735560768 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9
I0416 02:09:09.791922 138873210453120 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 02:09:09.792033 138873210453120 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 02:09:10.525746 138765601343040 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9/items
I0416 02:09:12.684510 138873210453120 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.893736s
I0416 02:09:12.685201 138873210453120 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 4.127 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host)
I0416 02:09:12.685264 138873210453120 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.990670s (batch_requests_ready=0.088544s, total_serialization_initiated=2.901593s, others=0.000533s)
I0416 02:09:12.685347 138873210453120 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.991255s (all_items=0.000018s, per_item={'items': '0.00001764'}, temp_paths=2.991237)
I0416 02:09:12.693963 138765632800320 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 02:09:12.694172 138873210453120 async_checkpointer.py:561] Finished blocking save. Time taken: 3.087196s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9.
I0416 02:09:12.694589 138873210453120 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 02:09:12.694903 138765685229120 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 02:09:12.695028 138873210453120 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776305338.3812714, 'wait_for_prev_duration_secs': 11.224919319152832, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776305349.6069493, 'checkpointer_blocking_duration_secs': 3.0873911380767822, 'get_old_steps_start_time': 1776305352.6943657, 'get_old_steps_duration_secs': 0.0001285076141357422, 'checkpoint_manager_blocking_start_time': 1776305338.3812342, 'checkpoint_manager_blocking_duration_secs': 14.313758134841919}
I0416 02:09:12.695188 138873210453120 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0416 02:09:12.695227 138873210453120 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0416 02:09:13.420148 138765746046528 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9/items/array_metadatas/process_0
I0416 02:09:43.029581 138765725075008 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 30.336389s (commit=29.922292s, array_metadata_write=0.414097s)
I0416 02:09:43.030871 138765632800320 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 379.071 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 33 seconds) (per-host)
I0416 02:09:43.030992 138765632800320 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 30.336757s.
I0416 02:09:43.461674 138765632800320 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 02:09:43.898755 138765632800320 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 02:09:43.899456 138765632800320 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.580495s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9/items
I0416 02:09:43.900252 138765632800320 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9/items
I0416 02:09:44.132237 138765632800320 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9
I0416 02:09:44.772789 138765632800320 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9`.
I0416 02:09:44.773554 138765632800320 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 35.166591s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_02_synthetic/checkpoints/9
I0416 02:09:44.773640 138765632800320 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 32.079409s.
I0416 02:09:44.773893 138765685229120 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 02:09:44.774014 138765685229120 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 02:09:44.774085 138765685229120 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0416 02:09:44.774142 138765685229120 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0416 02:09:44.774428 138873210453120 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 02:09:44.775147 138873210453120 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 02:09:44.775825 138873210453120 metric_logger.py:185] completed step: 9, seconds: 0.118, TFLOP/s/device: 115.182, Tokens/s/device: 17361.523, total_weights: 16384, loss: 5.908
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops