support mamba models

Author: eaidova

optimum/exporters/openvino/model_configs.py

@@ -95,6 +95,7 @@
     LlamaModelPatcher,
     LlavaImageEmbeddingModelPatcher,
     LlavaQwen2ImageEmbeddingsModelPatcher,
+    MambaPatcher,
     MiniCPM3Patcher,
     MiniCPMModelPatcher,
     MiniCPMVImageEmbeddingsModelPatcher,
@@ -2880,3 +2881,126 @@ def patch_model_for_export(
         self, model: Union["PreTrainedModel", "TFPreTrainedModel"], model_kwargs: Optional[Dict[str, Any]] = None
     ) -> "ModelPatcher":
         return DeepseekPatcher(self, model, model_kwargs=model_kwargs)
+
+
+class MambaCacheDummyInputGenerator(DummyInputGenerator):
+    """
+    Generates dummy past_key_values inputs for seq2seq architectures.
+    """
+
+    SUPPORTED_INPUT_NAMES = ("past_ssm_states", "past_conv_states", "cache_position")
+
+    def __init__(
+        self,
+        task: str,
+        normalized_config,
+        batch_size: int = DEFAULT_DUMMY_SHAPES["batch_size"],
+        sequence_length: int = DEFAULT_DUMMY_SHAPES["sequence_length"],
+        **kwargs,
+    ):
+        self.normalized_config = normalized_config
+        self.batch_size = batch_size
+        self.sequence_length = sequence_length
+        self.intermediate_size = self.normalized_config.config.intermediate_size
+        self.ssm_state_size = self.normalized_config.config.state_size
+        self.conv_kernel_size = self.normalized_config.config.conv_kernel
+
+
+    def generate(self, input_name: str, framework: str = "pt", int_dtype: str = "int64", float_dtype: str = "fp32"):
+        if input_name == "past_ssm_states":
+            ssm_shape = [self.batch_size, self.intermediate_size, self.ssm_state_size]
+            return [self.random_float_tensor(ssm_shape, framework=framework, dtype=float_dtype) for _ in range(self.normalized_config.num_layers)]
+
+        elif input_name == "past_conv_states":
+            conv_shape = [self.batch_size, self.intermediate_size, self.conv_kernel_size]
+            return [self.random_float_tensor(conv_shape, framework=framework, dtype=float_dtype) for _ in range(self.normalized_config.num_layers)]
+
+        elif input_name == "cache_position":
+            return self.random_int_tensor(
+                shape=[self.conv_kernel_size],
+                max_value=self.sequence_length,
+                framework=framework,
+                dtype=int_dtype,
+            )
+
+        raise ValueError(f"Unsupported input name {input_name}")
+
+@register_in_tasks_manager(
+    "mamba", *["text-generation", "text-generation-with-past"], library_name="transformers"
+)
+class MambaOpenVINOConfig(TextDecoderOnnxConfig):
+    DUMMY_INPUT_GENERATOR_CLASSES = (DummyTextInputGenerator, MambaCacheDummyInputGenerator)
+    DUMMY_PKV_GENERATOR_CLASS = MambaCacheDummyInputGenerator
+    NORMALIZED_CONFIG_CLASS = NormalizedTextConfig
+
+    @property
+    def inputs(self) -> Dict[str, Dict[int, str]]:
+        if self.use_past_in_inputs:
+            common_inputs = {"input_ids": {0: "batch_size", 1: "sequence_length"}}
+            self.add_past_key_values(common_inputs, direction="inputs")
+            #common_inputs["attention_mask"] = {0: "batch_size", 1: "past_sequence_length + 1"}
+            common_inputs["cache_position"] = {0: "cache_sequence_length"}
+        else:
+            common_inputs = {
+                "input_ids": {0: "batch_size", 1: "sequence_length"},
+                #"attention_mask": {0: "batch_size", 1: "sequence_length"},
+                "cache_position": {0: "cache_sequence_length"}
+            }
+        return common_inputs
+
+    def add_past_key_values(self, inputs_or_outputs: Dict[str, Dict[int, str]], direction: str):
+        """
+        Fills `input_or_outputs` mapping with past_key_values dynamic axes considering the direction.
+
+        Args:
+            inputs_or_outputs (`Dict[str, Dict[int, str]]`):
+                The mapping to fill.
+            direction (`str`):
+                either "inputs" or "outputs", it specifies whether `input_or_outputs` is the input mapping or the
+                output mapping, this is important for axes naming.
+        """
+        if direction not in ["inputs", "outputs"]:
+            raise ValueError(f'direction must either be "inputs" or "outputs", but {direction} was given')
+
+        if direction == "inputs":
+            ssm_name = "past_ssm_states"
+            conv_name = "past_conv_states"
+        else:
+            ssm_name = "present_ssm_states"
+            conv_name = "present_conv_states"
+
+        for i in range(self._normalized_config.num_layers):
+            inputs_or_outputs[f"{ssm_name}.{i}"] = {0: "batch_size"}
+
+        for i in range(self._normalized_config.num_layers):
+            inputs_or_outputs[f"{conv_name}.{i}"] = {0: "batch_size"}
+
+    def patch_model_for_export(self, model: Union["PreTrainedModel", "TFPreTrainedModel"], model_kwargs: Optional[Dict[str, Any]] = None):
+        return MambaPatcher(self, model, model_kwargs)
+
+    def generate_dummy_inputs(self, framework: str = "pt", **kwargs):
+            dummy_inputs_generators = self._create_dummy_input_generator_classes(**kwargs)
+
+            dummy_inputs = {}
+            input_names = [key for key in self.inputs.keys() if not key.startswith("past_")]
+            if self.use_past_in_inputs and self.use_cache_branch is not False:
+                input_names.extend(["past_ssm_states", "past_conv_states"])
+
+            for input_name in input_names:
+                input_was_inserted = False
+                for dummy_input_gen in dummy_inputs_generators:
+                    if dummy_input_gen.supports_input(input_name):
+                        dummy_inputs[input_name] = self.overwrite_shape_and_generate_input(
+                            dummy_input_gen,
+                            input_name,
+                            framework,
+                            input_shapes=kwargs,
+                        )
+                        input_was_inserted = True
+                        break
+                if not input_was_inserted:
+                    raise RuntimeError(
+                        f'Could not generate dummy input for "{input_name}". Try adding a proper dummy input generator to the model ONNX config.'
+                    )
+
+            return dummy_inputs