Add config

config.json

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+{
+  "_name_or_path": "t5-base",
+  "architectures": [
+    "T5ForConditionalGeneration"
+  ],
+  "d_ff": 4096,
+  "d_kv": 64,
+  "d_model": 1024,
+  "decoder_start_token_id": 0,
+  "dropout_rate": 0.1,
+  "eos_token_id": 1,
+  "feed_forward_proj": "relu",
+  "initializer_factor": 1.0,
+  "is_encoder_decoder": true,
+  "layer_norm_epsilon": 1e-06,
+  "model_type": "t5",
+  "n_positions": 512,
+  "num_decoder_layers": 24,
+  "num_heads": 16,
+  "num_layers": 2,
+  "pad_token_id": 0,
+  "relative_attention_num_buckets": 32,
+  "transformers_version": "4.17.0.dev0",
+  "use_cache": true,
+  "vocab_size": 32128
+}

operative_config.gin

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+import mesh_tensorflow.optimize
+import mesh_tensorflow.transformer.dataset
+import mesh_tensorflow.transformer.learning_rate_schedules
+import mesh_tensorflow.transformer.t2t_vocabulary
+import mesh_tensorflow.transformer.transformer
+import mesh_tensorflow.transformer.transformer_layers
+import mesh_tensorflow.transformer.utils
+import t5.models.mesh_transformer
+
+# Macros:
+# ==============================================================================
+d_ff = 4096
+d_kv = 64
+d_model = 1024
+dropout_rate = 0.0
+inputs_length = 512
+mean_noise_span_length = 3.0
+MIXTURE_NAME = 'c4_v220_unsupervised'
+noise_density = 0.15
+num_heads = 16
+num_layers = 24
+
+# Parameters for adafactor_decay_rate_pow:
+# ==============================================================================
+adafactor_decay_rate_pow.offset = 0
+
+# Parameters for AdafactorOptimizer:
+# ==============================================================================
+AdafactorOptimizer.beta1 = 0.0
+AdafactorOptimizer.clipping_threshold = 1.0
+AdafactorOptimizer.decay_rate = None
+AdafactorOptimizer.epsilon1 = 1e-30
+AdafactorOptimizer.epsilon2 = 0.001
+AdafactorOptimizer.factored = True
+AdafactorOptimizer.min_dim_size_to_factor = 128
+AdafactorOptimizer.multiply_by_parameter_scale = True
+
+# Parameters for Bitransformer:
+# ==============================================================================
+Bitransformer.shared_embedding = True
+
+# Parameters for denoise:
+# ==============================================================================
+denoise.inputs_fn = @preprocessors.noise_span_to_unique_sentinel
+denoise.noise_density = %noise_density
+denoise.noise_mask_fn = @preprocessors.random_spans_noise_mask
+denoise.targets_fn = @preprocessors.nonnoise_span_to_unique_sentinel
+
+# Parameters for decoder/DenseReluDense:
+# ==============================================================================
+decoder/DenseReluDense.activation = 'relu'
+decoder/DenseReluDense.dropout_rate = %dropout_rate
+decoder/DenseReluDense.hidden_size = %d_ff
+decoder/DenseReluDense.use_bias = False
+
+# Parameters for encoder/DenseReluDense:
+# ==============================================================================
+encoder/DenseReluDense.activation = 'relu'
+encoder/DenseReluDense.dropout_rate = %dropout_rate
+encoder/DenseReluDense.hidden_size = %d_ff
+encoder/DenseReluDense.use_bias = False
+
+# Parameters for enc_dec_attention:
+# ==============================================================================
+# None.
+
+# Parameters for enc_dec_attention_bias:
+# ==============================================================================
+# None.
+
+# Parameters for decoder/EncDecAttention:
+# ==============================================================================
+decoder/EncDecAttention.relative_attention_type = None
+
+# Parameters for get_variable_dtype:
+# ==============================================================================
+get_variable_dtype.activation_dtype = 'bfloat16'
+
+# Parameters for get_vocab_embedding_cls:
+# ==============================================================================
+# None.
+
+# Parameters for get_vocabulary:
+# ==============================================================================
+get_vocabulary.mixture_or_task_name = %MIXTURE_NAME
+
+# Parameters for decoder/LayerStack:
+# ==============================================================================
+decoder/LayerStack.dropout_rate = None
+decoder/LayerStack.norm_epsilon = None
+decoder/LayerStack.recompute_grads = False
+decoder/LayerStack.sublayers_final = \
+[@transformer.sublayer_rms_norm, @transformer.sublayer_dropout]
+decoder/LayerStack.sublayers_initial = [@transformer.sublayer_dropout]
+decoder/LayerStack.sublayers_per_layer = \
+[@transformer.sublayer_rms_norm,
+@transformer.sublayer_call_layer,
+@transformer.sublayer_dropout,
+@transformer.sublayer_residual]
+
+# Parameters for encoder/LayerStack:
+# ==============================================================================
+encoder/LayerStack.dropout_rate = None
+encoder/LayerStack.norm_epsilon = None
+encoder/LayerStack.recompute_grads = False
+encoder/LayerStack.sublayers_final = \
+[@transformer.sublayer_rms_norm, @transformer.sublayer_dropout]
+encoder/LayerStack.sublayers_initial = [@transformer.sublayer_dropout]
+encoder/LayerStack.sublayers_per_layer = \
+[@transformer.sublayer_rms_norm,
+@transformer.sublayer_call_layer,
+@transformer.sublayer_dropout,
+@transformer.sublayer_residual]
+
+# Parameters for learning_rate_schedule_noam:
+# ==============================================================================
+learning_rate_schedule_noam.linear_decay_fraction = 0.0
+learning_rate_schedule_noam.multiplier = 1.0
+learning_rate_schedule_noam.offset = 0
+learning_rate_schedule_noam.warmup_steps = 10000
+
+# Parameters for make_bitransformer:
+# ==============================================================================
+make_bitransformer.decoder_name = 'decoder'
+make_bitransformer.encoder_name = 'encoder'
+
+# Parameters for decoder/make_layer_stack:
+# ==============================================================================
+decoder/make_layer_stack.block_scope = True
+decoder/make_layer_stack.layers = \
+[@mesh_tensorflow.transformer.transformer_layers.SelfAttention,
+@mesh_tensorflow.transformer.transformer_layers.EncDecAttention,
+@mesh_tensorflow.transformer.transformer_layers.DenseReluDense]
+decoder/make_layer_stack.num_layers = %num_layers
+
+# Parameters for encoder/make_layer_stack:
+# ==============================================================================
+encoder/make_layer_stack.block_scope = True
+encoder/make_layer_stack.layers = \
+[@mesh_tensorflow.transformer.transformer_layers.SelfAttention,
+@mesh_tensorflow.transformer.transformer_layers.DenseReluDense]
+encoder/make_layer_stack.num_layers = 2
+
+# Parameters for mesh_train_dataset_fn:
+# ==============================================================================
+mesh_train_dataset_fn.mixture_or_task_name = %MIXTURE_NAME
+mesh_train_dataset_fn.pack = True
+mesh_train_dataset_fn.seed = None
+mesh_train_dataset_fn.shuffle = True
+mesh_train_dataset_fn.use_cached = 1
+
+# Parameters for noise_span_to_unique_sentinel:
+# ==============================================================================
+# None.
+
+# Parameters for nonnoise_span_to_unique_sentinel:
+# ==============================================================================
+# None.
+
+# Parameters for pack_dataset:
+# ==============================================================================
+pack_dataset.use_custom_ops = True
+
+# Parameters for pack_or_pad:
+# ==============================================================================
+# None.
+
+# Parameters for random_spans_helper:
+# ==============================================================================
+random_spans_helper.extra_tokens_per_span_inputs = 1
+random_spans_helper.extra_tokens_per_span_targets = 1
+random_spans_helper.inputs_length = %inputs_length
+random_spans_helper.mean_noise_span_length = %mean_noise_span_length
+random_spans_helper.noise_density = %noise_density
+random_spans_helper.verbose = False
+
+# Parameters for random_spans_noise_mask:
+# ==============================================================================
+random_spans_noise_mask.mean_noise_span_length = %mean_noise_span_length
+
+# Parameters for random_spans_tokens_length:
+# ==============================================================================
+# None.
+
+# Parameters for reduce_concat_tokens:
+# ==============================================================================
+reduce_concat_tokens.batch_size = 128
+reduce_concat_tokens.feature_key = 'targets'
+
+# Parameters for rewrite_stack_variables:
+# ==============================================================================
+rewrite_stack_variables.max_combined_variable_size = 536870912
+
+# Parameters for run:
+# ==============================================================================
+run.autostack = True
+run.batch_size = ('tokens_per_batch', 65536)
+run.checkpoint_input_pipeline = False
+run.dataset_split = 'train'
+run.ensemble_inputs = None
+run.eval_checkpoint_step = None
+run.eval_dataset_fn = None
+run.eval_summary_dir = None
+run.export_checkpoint_step = None
+run.export_path = ''
+run.init_checkpoint = None
+run.iterations_per_loop = 100
+run.keep_checkpoint_max = None
+run.layout_rules = \
+'ensemble:ensemble,batch:batch,d_ff:model,heads:model,vocab:model,experts:batch'
+run.learning_rate_schedule = @learning_rate_schedules.learning_rate_schedule_noam
+run.mesh_devices = None
+run.mesh_shape = @mesh_tensorflow.transformer.utils.tpu_mesh_shape()
+run.mode = 'train'
+run.model_type = 'bitransformer'
+run.optimizer = @optimize.AdafactorOptimizer
+run.output_eval_examples = True
+run.perplexity_eval_steps = 100
+run.predict_fn = None
+run.save_checkpoints_steps = 5000
+run.seen_data_init_step = 0
+run.sequence_length = {'inputs': 512, 'targets': 128}
+run.skip_seen_data = False
+run.total_run_steps = None
+run.train_dataset_fn = @t5.models.mesh_transformer.mesh_train_dataset_fn
+run.train_steps = 524288
+run.variable_filter = None
+
+# Parameters for select_random_chunk:
+# ==============================================================================
+select_random_chunk.additional_feature_keys = None
+select_random_chunk.additional_passthrough_keys = None
+select_random_chunk.feature_key = 'targets'
+select_random_chunk.max_length = 65536
+select_random_chunk.uniform_random_start = False
+
+# Parameters for decoder/SelfAttention:
+# ==============================================================================
+decoder/SelfAttention.attention_func = None
+decoder/SelfAttention.attention_kwargs = None
+decoder/SelfAttention.combine_dims = True
+decoder/SelfAttention.dropout_rate = %dropout_rate
+decoder/SelfAttention.fold_scaling_into_initializer = True
+decoder/SelfAttention.keep_query_heads_dims = False
+decoder/SelfAttention.key_value_size = %d_kv
+decoder/SelfAttention.num_heads = %num_heads
+decoder/SelfAttention.num_memory_heads = 0
+decoder/SelfAttention.relative_attention_num_buckets = 32
+decoder/SelfAttention.relative_attention_type = 'bias_shared'
+decoder/SelfAttention.shared_kv = False
+
+# Parameters for encoder/SelfAttention:
+# ==============================================================================
+encoder/SelfAttention.attention_func = None
+encoder/SelfAttention.attention_kwargs = None
+encoder/SelfAttention.combine_dims = True
+encoder/SelfAttention.dropout_rate = %dropout_rate
+encoder/SelfAttention.fold_scaling_into_initializer = True
+encoder/SelfAttention.keep_query_heads_dims = False
+encoder/SelfAttention.key_value_size = %d_kv
+encoder/SelfAttention.num_heads = %num_heads
+encoder/SelfAttention.num_memory_heads = 0
+encoder/SelfAttention.relative_attention_num_buckets = 32
+encoder/SelfAttention.relative_attention_type = 'bias_shared'
+encoder/SelfAttention.shared_kv = False
+
+# Parameters for serialize_num_microbatches:
+# ==============================================================================
+serialize_num_microbatches.tokens_per_microbatch_per_replica = 8192
+
+# Parameters for SimdMeshImpl:
+# ==============================================================================
+SimdMeshImpl.allreduce_in_bfloat16_max_group_size = 8
+
+# Parameters for split_tokens:
+# ==============================================================================
+split_tokens.additional_feature_keys = None
+split_tokens.feature_key = 'targets'
+split_tokens.max_tokens_per_segment = @preprocessors.random_spans_tokens_length()
+split_tokens.min_tokens_per_segment = None
+split_tokens.passthrough_feature_keys = None
+
+# Parameters for sublayer_call_layer:
+# ==============================================================================
+# None.
+
+# Parameters for sublayer_dropout:
+# ==============================================================================
+sublayer_dropout.dropout_rate = %dropout_rate
+
+# Parameters for sublayer_mask_padding:
+# ==============================================================================
+# None.
+
+# Parameters for sublayer_residual:
+# ==============================================================================
+# None.
+
+# Parameters for sublayer_rms_norm:
+# ==============================================================================
+sublayer_rms_norm.epsilon = 1e-06
+sublayer_rms_norm.name = 'rms_norm'
+
+# Parameters for tpu_estimator_model_fn:
+# ==============================================================================
+tpu_estimator_model_fn.hierarchical_tiling_spec = None
+tpu_estimator_model_fn.init_variable_filter = ''
+tpu_estimator_model_fn.model_info_file = ''
+tpu_estimator_model_fn.outer_batch_size = 1
+tpu_estimator_model_fn.tpu_summaries = False
+
+# Parameters for tpu_mesh_shape:
+# ==============================================================================
+tpu_mesh_shape.ensemble_parallelism = None
+tpu_mesh_shape.model_parallelism = 2
+tpu_mesh_shape.tpu_topology = '4x4'
+
+# Parameters for unit_scaling_convention:
+# ==============================================================================
+unit_scaling_convention.value = False
+
+# Parameters for decoder/Unitransformer:
+# ==============================================================================
+decoder/Unitransformer.d_model = %d_model
+decoder/Unitransformer.ensemble = None
+decoder/Unitransformer.input_full_attention = False
+decoder/Unitransformer.label_smoothing = 0.0
+decoder/Unitransformer.loss_denominator = None
+decoder/Unitransformer.loss_fn = None
+decoder/Unitransformer.loss_on_targets_only = False
+decoder/Unitransformer.max_length = 512
+decoder/Unitransformer.positional_embedding = False
+decoder/Unitransformer.shared_embedding_and_softmax_weights = True
+decoder/Unitransformer.sinusoid_positional_embedding = False
+decoder/Unitransformer.token_dropout_rate = 0.0
+decoder/Unitransformer.vocab_divisor = 128
+decoder/Unitransformer.z_loss = 0.0001
+
+# Parameters for encoder/Unitransformer:
+# ==============================================================================
+encoder/Unitransformer.d_model = %d_model
+encoder/Unitransformer.ensemble = None
+encoder/Unitransformer.input_full_attention = False
+encoder/Unitransformer.label_smoothing = 0.0
+encoder/Unitransformer.loss_denominator = None
+encoder/Unitransformer.loss_fn = None
+encoder/Unitransformer.loss_on_targets_only = False
+encoder/Unitransformer.max_length = 512
+encoder/Unitransformer.positional_embedding = False
+encoder/Unitransformer.shared_embedding_and_softmax_weights = True
+encoder/Unitransformer.sinusoid_positional_embedding = False
+encoder/Unitransformer.token_dropout_rate = 0.0
+encoder/Unitransformer.vocab_divisor = 128
+encoder/Unitransformer.z_loss = 0.0001
+
+# Parameters for unsupervised:
+# ==============================================================================
+unsupervised.preprocessors = \
+[@preprocessors.select_random_chunk,
+@preprocessors.reduce_concat_tokens,
+@preprocessors.split_tokens,
+@preprocessors.denoise]
+
+# Parameters for VarianceScalingInitializer:
+# ==============================================================================
+VarianceScalingInitializer.distribution = 'normal'
+VarianceScalingInitializer.mode = 'fan_in'
+VarianceScalingInitializer.scale = 1.0
+
+# Parameters for VocabEmbedding:
+# ==============================================================================
+VocabEmbedding.scale_variable_like_classifier_weights = False