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[OVEP] Enable stateful mode for Phi-silica models #821

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[OVEP] Enable stateful mode for Phi-silica models #821

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65bbecc
trigger stateful path for Phisilica model
Kotomi-Du Oct 2, 2025
1e132f3
unify the code
Kotomi-Du Oct 11, 2025
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6 changes: 5 additions & 1 deletion onnxruntime/core/providers/openvino/ov_interface.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -361,7 +361,11 @@ void OVInferRequest::Infer() {
StatefulOVInferRequest::StatefulOVInferRequest(ov::InferRequest infer_request, std::string device)
: OVInferRequest(std::move(infer_request)), target_device(device) {
bool gpu_or_npu = ((device.find("NPU") != std::string::npos) || (device.find("GPU") != std::string::npos));
if (gpu_or_npu) {

// check if there is input_ids tensors and if the tensor type is int64,
// because logic prefill_use_full_chat_history is only for specific inputs and data type
auto input_ids_opt = FindTensor("input_ids");
if (gpu_or_npu && input_ids_opt.has_value() && input_ids_opt->get_element_type() != ov::element::i64) {
prefill_use_full_chat_history = true;
}
}
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32 changes: 21 additions & 11 deletions onnxruntime/core/providers/openvino/ov_stateful_patch_utils.cc
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Expand Up @@ -72,6 +72,14 @@ void FuseCacheReorder(std::shared_ptr<ov::Model> ov_model,
main_input_name = "input_ids";
}

if (ModelHasInputOutputNames(ov_model, "input_hidden_states")) {
main_input_name = "input_hidden_states";
}

if (ModelHasInputOutputNames(ov_model, "/model/embed_tokens/Gather_output_0")) {
main_input_name = "/model/embed_tokens/Gather_output_0";
}

auto input_batch = ov_model->input(main_input_name).get_partial_shape()[0];

auto beam_idx = std::make_shared<ov::opset13::Parameter>(ov::element::i32, ov::PartialShape({std::move(input_batch)}));
Expand Down Expand Up @@ -121,20 +129,22 @@ void MakeStateful(std::shared_ptr<ov::Model>& ov_model,
void PatchStatefulDecoder(std::shared_ptr<ov::Model> model) {
std::vector<std::string> key_value_input_names;
std::vector<std::string> not_kv_inputs;
for (const ov::Output<ov::Node>& input : model->inputs()) {
auto& names = input.get_names();

bool found = false;
for (auto& name : names) {
if (name.find("key_values") != std::string::npos) {
key_value_input_names.push_back(name);
const auto& params = model->get_parameters();
bool found = false;
for (auto i = 0; i < params.size(); i++) {
auto param_name = params.at(i)->output(0).get_any_name();
if (param_name.find("key_values") != std::string::npos) {
key_value_input_names.push_back(param_name);
found = true;
} else if (param_name.find("key") != std::string::npos) {
key_value_input_names.push_back(param_name);
found = true;
} else if (param_name.find("value") != std::string::npos) {
key_value_input_names.push_back(param_name);
found = true;
break;
}
}

if (!found) {
not_kv_inputs.push_back(input.get_any_name());
not_kv_inputs.push_back(param_name);
}
}

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