2026-04-16 19:51:00.834213: 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 19:51:00.951061 130917826292864 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 19:51:58.271830 130917826292864 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 19:51:58.271938 130917826292864 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 19:51:58.271972 130917826292864 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 19:51:58.271997 130917826292864 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 19:51:58.272103 130917826292864 train.py:811] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 19:51:58.364313 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:51:58.767683 130917826292864 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 19:51:59.153548 130917826292864 checkpointing.py:688] Setting up checkpoint logger... I0416 19:51:59.153754 130917826292864 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 19:51:59.153845 130917826292864 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 19:51:59.154139 130917826292864 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 0x771118368dd0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 19:52:01.511542 130917826292864 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 19:52:01.511799 130917826292864 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 0x770a9a7a4710>}, handler_registry=None I0416 19:52:01.512248 130917826292864 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x770a9a7a4710>` 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 19:52:01.512291 130917826292864 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x770a9a7a58b0>` 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 19:52:01.512321 130917826292864 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 0x770a9a7a4710>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x770a9a7a4710>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x770a9a7a58b0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x770a9a7a58b0>}). I0416 19:52:01.512643 130917826292864 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 19:52:01.512709 130917826292864 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x770a9a7180e0> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 19:52:01.647706 130917826292864 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints I0416 19:52:01.647979 130917826292864 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_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x770a9a7a5670> I0416 19:52:01.648090 130917826292864 checkpointing.py:302] Checkpoint manager created! I0416 19:52:01.732425 130917826292864 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 19:52:01.735503 130917826292864 reader.py:262] Creating a tf.data.Dataset reading 8 files located in folders: tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0. I0416 19:52:01.788853 130917826292864 logging_logger.py:49] Constructing tf.data.Dataset __local_c4_builder for split train, from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 19:52:01.822539 130917826292864 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 19:52:01.822605 130917826292864 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 19:52:03.103028 130917826292864 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 19:52:03.103146 130917826292864 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 19:52:03.449037 4063132 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 19:52:03.806056 130917826292864 maxtext_utils.py:1805] decoder/decoder_norm/scale/value Shape: float32[2048] Physical: (None,) I0416 19:52:03.806158 130917826292864 maxtext_utils.py:1805] decoder/layers/mlp/wi_0/kernel/value Shape: float32[2048,16,7168] Physical: ('fsdp', None, None) I0416 19:52:03.806199 130917826292864 maxtext_utils.py:1805] decoder/layers/mlp/wi_1/kernel/value Shape: float32[2048,16,7168] Physical: ('fsdp', None, None) I0416 19:52:03.806230 130917826292864 maxtext_utils.py:1805] decoder/layers/mlp/wo/kernel/value Shape: float32[7168,16,2048] Physical: (None, None, 'fsdp') I0416 19:52:03.806257 130917826292864 maxtext_utils.py:1805] decoder/layers/post_self_attention_layer_norm/scale/value Shape: float32[2048,16] Physical: (None, None) I0416 19:52:03.806281 130917826292864 maxtext_utils.py:1805] decoder/layers/pre_self_attention_layer_norm/scale/value Shape: float32[2048,16] Physical: (None, None) I0416 19:52:03.806306 130917826292864 maxtext_utils.py:1805] decoder/layers/self_attention/key/kernel/value Shape: float32[2048,16,16,128] Physical: ('fsdp', None, None, None) I0416 19:52:03.806330 130917826292864 maxtext_utils.py:1805] decoder/layers/self_attention/out/kernel/value Shape: float32[16,16,128,2048] Physical: (None, None, None, 'fsdp') I0416 19:52:03.806353 130917826292864 maxtext_utils.py:1805] decoder/layers/self_attention/query/kernel/value Shape: float32[2048,16,16,128] Physical: ('fsdp', None, None, None) I0416 19:52:03.806375 130917826292864 maxtext_utils.py:1805] decoder/layers/self_attention/value/kernel/value Shape: float32[2048,16,16,128] Physical: ('fsdp', None, None, None) I0416 19:52:03.806397 130917826292864 maxtext_utils.py:1805] decoder/logits_dense/kernel/value Shape: float32[2048,32000] Physical: ('fsdp', None) I0416 19:52:03.806419 130917826292864 maxtext_utils.py:1805] token_embedder/embedding/value Shape: float32[32000,2048] Physical: (None, 'fsdp') I0416 19:52:03.935301 130917826292864 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 19:52:03.935379 130917826292864 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:52:03.940187 130917826292864 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 19:52:03.940232 130917826292864 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:52:03.955634 130917826292864 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 19:52:03.955684 130917826292864 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:52:03.970463 130917826292864 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 19:52:03.970510 130917826292864 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 19:52:04.023546 130917826292864 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 19:52:04.023617 130917826292864 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:52:04.038558 130917826292864 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 19:52:04.038608 130917826292864 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:52:04.053424 130917826292864 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 19:52:04.053472 130917826292864 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:52:04.082552 130917826292864 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 19:52:04.082616 130917826292864 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 19:52:04.137071 130917826292864 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0416 19:52:04.137139 130917826292864 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). W0416 19:52:05.180456 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:52:05.346618 130917826292864 max_utils.py:791] Total memory size: 3.5 GB, Output size: 1.5 GB, Temp size: 1.9 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB. I0416 19:52:05.347154 130917826292864 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 19:52:05.349749 130917826292864 metric_logger.py:289] number parameters: 1.104 billion W0416 19:52:08.566225 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:52:08.743545 130917826292864 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 19:52:08.855256 130917826292864 checkpointing.py:798] Waited 0.11170792579650879 seconds for step 0 to finish before starting checkpointing. I0416 19:52:08.855956 130917826292864 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 19:52:08.856156 130917826292864 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 19:52:08.856565 130917826292864 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0. I0416 19:52:08.948211 130917826292864 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 19:52:09.030543 130804531332672 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0 I0416 19:52:09.056744 130917826292864 jax_array_handlers.py:347] Scheduling D2H of 153 prioritized jax.Array. I0416 19:52:09.056814 130917826292864 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 19:52:09.741331 130804520846912 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0/items I0416 19:52:09.877458 130804476806720 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776369129646154006, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776369129646154006, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0/_CHECKPOINT_METADATA W0416 19:52:10.167656 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.178790 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.184119 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.190144 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.195227 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.199352 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.203515 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.207685 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:52:10.303291 4065859 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 19:52:10.303348 4065859 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 19:52:10.476095 130917826292864 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.421106s I0416 19:52:10.489182 130917826292864 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 8.019 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host) I0416 19:52:10.489292 130917826292864 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.539303s (batch_requests_ready=0.088809s, total_serialization_initiated=1.437553s, others=0.012941s) I0416 19:52:10.489417 130917826292864 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.540728s (all_items=0.000052s, per_item={'items': '0.00005174'}, temp_paths=1.540676) I0416 19:52:10.491013 130804541818432 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 19:52:10.491190 130917826292864 async_checkpointer.py:561] Finished blocking save. Time taken: 1.634976s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0. I0416 19:52:10.491453 130917826292864 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 19:52:10.491686 130804392920640 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 19:52:10.491802 130917826292864 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776369128.8559365, 'wait_for_prev_duration_secs': 4.8160552978515625e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776369128.8561785, 'checkpointer_blocking_duration_secs': 1.6350946426391602, 'get_old_steps_start_time': 1776369130.4913127, 'get_old_steps_duration_secs': 7.581710815429688e-05, 'checkpoint_manager_blocking_start_time': 1776369128.8557642, 'checkpoint_manager_blocking_duration_secs': 1.6359977722167969} I0416 19:52:10.491958 130917826292864 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 19:52:10.492092 130917826292864 max_utils.py:750] Memstats: After params initialized: I0416 19:52:10.492163 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_0(process=0,(0,0,0,0)) I0416 19:52:10.492192 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_1(process=0,(1,0,0,0)) I0416 19:52:10.492214 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_2(process=0,(0,1,0,0)) I0416 19:52:10.492234 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_3(process=0,(1,1,0,0)) I0416 19:52:10.492254 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_4(process=0,(0,2,0,0)) I0416 19:52:10.492273 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_5(process=0,(1,2,0,0)) I0416 19:52:10.492292 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_6(process=0,(0,3,0,0)) I0416 19:52:10.492310 130917826292864 max_utils.py:756] Using (GB) 1.6 / 31.25 (5.120000%) on TPU_7(process=0,(1,3,0,0)) W0416 19:52:10.500523 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.507173 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 19:52:10.511980 4063132 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 19:52:10.849467 130917826292864 metric_logger.py:185] completed step: 0, seconds: 3.392, TFLOP/s/device: 4.006, Tokens/s/device: 603.835, total_weights: 13328, loss: 10.885 I0416 19:52:10.850374 130917826292864 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/tensorboard/' I0416 19:52:10.948984 130917826292864 metric_logger.py:185] completed step: 1, seconds: 2.099, TFLOP/s/device: 6.474, Tokens/s/device: 975.839, total_weights: 12332, loss: nan I0416 19:52:10.949971 130917826292864 metric_logger.py:225] Aborting training due to NaN loss. I0416 19:52:10.950099 130917826292864 metric_logger.py:185] completed step: 1, seconds: 2.099, TFLOP/s/device: 6.474, Tokens/s/device: 975.839, total_weights: 12332, loss: nan I0416 19:52:10.950205 130917826292864 metric_logger.py:225] Aborting training due to NaN loss. E0416 19:52:10.967620 130804424377920 future.py:315] [process=0][thread=array_type_handler][operation_id=1] _SignalingThread.run() raised an exception: cannot schedule new futures after shutdown Traceback (most recent call last): File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run super().run() File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run self._target(*self._args, **self._kwargs) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result self._result = target() ^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda> target=lambda: asyncio_utils.run_sync(coro), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync return asyncio.run(coro) ^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run return runner.run(main) ^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run return self._loop.run_until_complete(task) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete return future.result() ^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher await async_serialize_replica_slices_batch( File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices await asyncio.gather(*write_coros) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 195, in write if await async_path.exists(file_path): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 67, in exists return await asyncio.to_thread(path.exists) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread return await loop.run_in_executor(None, func_call) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor executor.submit(func, *args), loop=self) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit raise RuntimeError('cannot schedule new futures after shutdown') RuntimeError: cannot schedule new futures after shutdown E0416 19:52:10.970883 130804413892160 future.py:315] [process=0][thread=write_metadata_after_commits][operation_id=1] _SignalingThread.run() raised an exception: cannot schedule new futures after shutdown Traceback (most recent call last): File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run super().run() File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run self._target(*self._args, **self._kwargs) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result self._result = target() ^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda> target=lambda: asyncio_utils.run_sync(coro), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync return asyncio.run(coro) ^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run return runner.run(main) ^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run return self._loop.run_until_complete(task) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete return future.result() ^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/handlers/base_pytree_checkpoint_handler.py", line 1192, in _write_metadata_after_commits await asyncio.to_thread(commit_future.result) File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread return await loop.run_in_executor(None, func_call) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 59, in run result = self.fn(*self.args, **self.kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result return self._f.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result return self._t.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result self.join(timeout=timeout) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join raise self._exception File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run super().run() File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run self._target(*self._args, **self._kwargs) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result self._result = target() ^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda> target=lambda: asyncio_utils.run_sync(coro), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync return asyncio.run(coro) ^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run return runner.run(main) ^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run return self._loop.run_until_complete(task) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete return future.result() ^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher await async_serialize_replica_slices_batch( File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices await asyncio.gather(*write_coros) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 195, in write if await async_path.exists(file_path): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 67, in exists return await asyncio.to_thread(path.exists) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread return await loop.run_in_executor(None, func_call) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor executor.submit(func, *args), loop=self) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit raise RuntimeError('cannot schedule new futures after shutdown') RuntimeError: cannot schedule new futures after shutdown E0416 19:52:10.972885 130804541818432 async_checkpointer.py:229] [process=0] Failed to run 3 Handler Commit operations or the Commit callback in background save thread, directory: gs://wanglance-maxtext/nnx_ckpt_feat_nnx_post_train_fixes_20260416_181521/nnx_feat_nnx_post_train_fixes_20260416_181521_05_fp8/checkpoints/0 Traceback (most recent call last): File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/checkpointers/async_checkpointer.py", line 215, in _thread_func _background_wait_for_commit_futures( File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/checkpointers/async_checkpointer.py", line 88, in _background_wait_for_commit_futures commit_future.result() File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 196, in result f.result(timeout=time_remaining) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result return self._f.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result return self._t.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result self.join(timeout=timeout) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join raise self._exception File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run super().run() File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run self._target(*self._args, **self._kwargs) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result self._result = target() ^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda> target=lambda: asyncio_utils.run_sync(coro), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync return asyncio.run(coro) ^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run return runner.run(main) ^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run return self._loop.run_until_complete(task) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete return future.result() ^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/handlers/base_pytree_checkpoint_handler.py", line 1192, in _write_metadata_after_commits await asyncio.to_thread(commit_future.result) File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread return await loop.run_in_executor(None, func_call) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 59, in run result = self.fn(*self.args, **self.kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result return self._f.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result return self._t.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result self.join(timeout=timeout) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join raise self._exception File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run super().run() File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run self._target(*self._args, **self._kwargs) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result self._result = target() ^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda> target=lambda: asyncio_utils.run_sync(coro), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync return asyncio.run(coro) ^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run return runner.run(main) ^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run return self._loop.run_until_complete(task) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete return future.result() ^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher await async_serialize_replica_slices_batch( File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices await asyncio.gather(*write_coros) File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 195, in write if await async_path.exists(file_path): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 67, in exists return await asyncio.to_thread(path.exists) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread return await loop.run_in_executor(None, func_call) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor executor.submit(func, *args), loop=self) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit raise RuntimeError('cannot schedule new futures after shutdown') RuntimeError: cannot schedule new futures after shutdown I0416 19:52:10.974566 130804392920640 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 19:52:10.974644 130804392920640 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 19:52:10.974727 130804392920640 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops