2026-04-16 12:48:30.301432: 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 12:48:30.417573 131978395622528 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag.
I0416 12:49:26.143056 131978395622528 max_utils.py:800] System Information: Jax Version: 0.9.2
I0416 12:49:26.143165 131978395622528 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0416 12:49:26.143198 131978395622528 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 12:49:26.143236 131978395622528 train_utils.py:334] WARNING: 'dataset_path' might be pointing your local file system
I0416 12:49:26.143327 131978395622528 train.py:683] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper.
W0416 12:49:26.237561 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:26.631987 131978395622528 maxtext_utils.py:1517] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0416 12:49:26.632332 131978395622528 checkpointing.py:677] Setting up checkpoint logger...
I0416 12:49:26.632376 131978395622528 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0416 12:49:26.632416 131978395622528 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None
I0416 12:49:26.633125 131978395622528 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 0x78080672d610>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0416 12:49:29.002041 131978395622528 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0416 12:49:29.002336 131978395622528 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 0x7801ae6f9f40>}, handler_registry=None
I0416 12:49:29.002619 131978395622528 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7801ae6f9f40>` 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 12:49:29.002658 131978395622528 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78018a9344d0>` 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 12:49:29.002689 131978395622528 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 0x7801ae6f9f40>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7801ae6f9f40>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78018a9344d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78018a9344d0>}).
I0416 12:49:29.003060 131978395622528 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28
I0416 12:49:29.003115 131978395622528 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x78018a940f40> timeout: 600 secs and primary_host=0 for async checkpoint writes
I0416 12:49:29.122855 131978395622528 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints
I0416 12:49:29.123108 131978395622528 checkpoint_manager.py:921] [process=0][thread=MainThread] CheckpointManager created, primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_hns=False, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False), root_directory=gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x78033a900440>
I0416 12:49:29.123188 131978395622528 checkpointing.py:301] Checkpoint manager created!
I0416 12:49:29.204005 131978395622528 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0
I0416 12:49:29.207038 131978395622528 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 12:49:29.260720 131978395622528 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 12:49:29.291470 131978395622528 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 12:49:29.291537 131978395622528 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 12:49:30.430251 131978395622528 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 12:49:30.430354 131978395622528 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 12:49:30.534251 131978395622528 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 12:49:30.534326 131978395622528 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 12:49:30.549212 131978395622528 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 12:49:30.549258 131978395622528 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 12:49:30.595173 131978395622528 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 12:49:30.595245 131978395622528 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 12:49:30.610195 131978395622528 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 12:49:30.610245 131978395622528 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 12:49:30.625191 131978395622528 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 12:49:30.625240 131978395622528 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 12:49:30.647289 131978395622528 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0416 12:49:30.647348 131978395622528 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 12:49:30.692701 131978395622528 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0416 12:49:30.692765 131978395622528 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None).
I0416 12:49:31.068997 131978395622528 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0416 12:49:31.069101 131978395622528 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
W0416 12:49:31.136120 3831784 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 12:49:31.902384 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902484 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902522 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902551 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902576 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902607 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_0/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902630 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902651 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902671 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902692 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902715 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902736 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wi_1/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902757 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902777 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902799 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902820 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902841 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902861 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/mlp/wo/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902880 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902900 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902920 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902939 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902960 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.902980 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/key/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.902999 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903019 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903038 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903074 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903094 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903113 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/out/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903134 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903154 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903173 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903193 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903212 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903231 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/query/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903252 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/input_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903271 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/input_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903290 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/kernel_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903309 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/kernel_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903329 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/output_grad_amax_history
Shape: float32[16,1024]
Logical: P()
Physical: ()
I0416 12:49:31.903348 131978395622528 maxtext_utils.py:1620] params/_overwrite_with_gradient/decoder/layers/self_attention/value/Fp8DirectDotGeneralOp_0/output_grad_scale
Shape: float32[16,1]
Logical: P()
Physical: ()
I0416 12:49:31.903387 131978395622528 maxtext_utils.py:1620] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0416 12:49:31.903429 131978395622528 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wi_0/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0416 12:49:31.903455 131978395622528 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wi_1/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0416 12:49:31.903490 131978395622528 maxtext_utils.py:1620] params/params/decoder/layers/mlp/wo/kernel
Shape: float32[7168,16,2048]
Logical: P('mlp', 'layers', 'embed')
Physical: (None, None, 'fsdp')
I0416 12:49:31.903522 131978395622528 maxtext_utils.py:1620] params/params/decoder/layers/post_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0416 12:49:31.903545 131978395622528 maxtext_utils.py:1620] params/params/decoder/layers/pre_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0416 12:49:31.903579 131978395622528 maxtext_utils.py:1620] 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 12:49:31.903618 131978395622528 maxtext_utils.py:1620] 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 12:49:31.903644 131978395622528 maxtext_utils.py:1620] 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 12:49:31.903667 131978395622528 maxtext_utils.py:1620] 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 12:49:31.903699 131978395622528 maxtext_utils.py:1620] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0416 12:49:31.903730 131978395622528 maxtext_utils.py:1620] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0416 12:49:33.303002 131978395622528 train.py:155] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0416 12:49:33.303092 131978395622528 train.py:155] train/xent Physical: float32[8,2048]............................................. ('fsdp', None).
I0416 12:49:33.317492 131978395622528 train.py:162] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0416 12:49:33.317539 131978395622528 train.py:162] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None).
W0416 12:49:33.760597 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:33.933943 131978395622528 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 12:49:33.934469 131978395622528 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter.
I0416 12:49:33.934679 131978395622528 metric_logger.py:289] number parameters: 1.105 billion
W0416 12:49:38.159005 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:38.357100 131978395622528 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0416 12:49:38.470339 131978395622528 checkpointing.py:776] Waited 0.11322307586669922 seconds for step 0 to finish before starting checkpointing.
I0416 12:49:38.470816 131978395622528 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 12:49:38.470978 131978395622528 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0
I0416 12:49:38.471351 131978395622528 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints/0.
I0416 12:49:38.556202 131978395622528 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient
I0416 12:49:38.642261 131865073681984 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints/0
I0416 12:49:38.655783 131978395622528 jax_array_handlers.py:347] Scheduling D2H of 81 prioritized jax.Array.
I0416 12:49:38.655840 131978395622528 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 12:49:39.323307 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.334439 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.346358 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:39.349291 131865063196224 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints/0/items
W0416 12:49:39.364559 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.374902 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.380166 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.384351 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:39.388407 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:39.535511 131865023350336 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776343779254545655, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776343779254545655, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints/0/_CHECKPOINT_METADATA
I0416 12:49:39.964601 3834485 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json
I0416 12:49:39.964653 3834485 google_auth_provider.cc:156] Using OAuth2 AuthProvider
I0416 12:49:40.372432 131978395622528 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.717082s
I0416 12:49:40.380091 131978395622528 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 6.773 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host)
I0416 12:49:40.380154 131978395622528 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.822401s (batch_requests_ready=0.091348s, total_serialization_initiated=1.723491s, others=0.007562s)
I0416 12:49:40.380234 131978395622528 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.823578s (all_items=0.000023s, per_item={'items': '0.00002265'}, temp_paths=1.823555)
I0416 12:49:40.381910 131865084167744 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 12:49:40.381993 131978395622528 async_checkpointer.py:561] Finished blocking save. Time taken: 1.910975s. Continuing background save to gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints/0.
I0416 12:49:40.382186 131978395622528 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 12:49:40.382377 131864949950016 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 12:49:40.382483 131978395622528 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776343778.4708037, 'wait_for_prev_duration_secs': 4.00543212890625e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776343778.4709992, 'checkpointer_blocking_duration_secs': 1.9111106395721436, 'get_old_steps_start_time': 1776343780.3821292, 'get_old_steps_duration_secs': 2.1457672119140625e-05, 'checkpoint_manager_blocking_start_time': 1776343778.4707236, 'checkpoint_manager_blocking_duration_secs': 1.9117324352264404}
I0416 12:49:40.382611 131978395622528 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0416 12:49:40.382652 131978395622528 max_utils.py:750]
Memstats: After params initialized:
I0416 12:49:40.382694 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_0(process=0,(0,0,0,0))
I0416 12:49:40.382718 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_1(process=0,(1,0,0,0))
I0416 12:49:40.382738 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_2(process=0,(0,1,0,0))
I0416 12:49:40.382757 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_3(process=0,(1,1,0,0))
I0416 12:49:40.382774 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_4(process=0,(0,2,0,0))
I0416 12:49:40.382791 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_5(process=0,(1,2,0,0))
I0416 12:49:40.382809 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_6(process=0,(0,3,0,0))
I0416 12:49:40.382825 131978395622528 max_utils.py:756] Using (GB) 1.61 / 31.25 (5.152000%) on TPU_7(process=0,(1,3,0,0))
W0416 12:49:40.388366 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:40.394924 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 12:49:40.399518 3831784 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 12:49:40.716189 131978395622528 metric_logger.py:185] completed step: 0, seconds: 4.422, TFLOP/s/device: 3.073, Tokens/s/device: 463.149, total_weights: 13328, loss: 10.844
I0416 12:49:40.717158 131978395622528 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_05_fp8/tensorboard/'
I0416 12:49:40.823817 131978395622528 metric_logger.py:185] completed step: 1, seconds: 2.356, TFLOP/s/device: 5.767, Tokens/s/device: 869.207, total_weights: 12332, loss: nan
I0416 12:49:40.824882 131978395622528 metric_logger.py:225] Aborting training due to NaN loss.
I0416 12:49:40.824993 131978395622528 metric_logger.py:185] completed step: 1, seconds: 2.356, TFLOP/s/device: 5.767, Tokens/s/device: 869.207, total_weights: 12332, loss: nan
I0416 12:49:40.825108 131978395622528 metric_logger.py:225] Aborting training due to NaN loss.
E0416 12:49:40.840523 131865042224704 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 12:49:40.843553 131864970921536 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 12:49:40.845394 131865084167744 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/linen_ckpt_main_20260416_123638/linen_main_20260416_123638_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 12:49:40.847021 131864949950016 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 12:49:40.847164 131864949950016 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0416 12:49:40.847250 131864949950016 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