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EPCtx changes for dynamic model with reshape_input provider option #720

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Jul 1, 2025
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EPCtx changes for dynamic model with reshape_input provider option #720

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12 changes: 10 additions & 2 deletions onnxruntime/core/providers/openvino/backend_manager.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,11 @@ BackendManager::BackendManager(SessionContext& session_context,
ptr_stream_t model_stream;
std::unique_ptr<onnx::ModelProto> model_proto;
if (subgraph_context_.is_ep_ctx_graph) {
if (!session_context_.reshape.empty()) {
std::string exception_str =
"[OpenVINO-EP] Bounded dynamic model execution using provider option reshape_input is not supported for OVEP EPContext model";
ORT_THROW(exception_str);
}
model_stream = ep_ctx_handle_.GetModelBlobStream(session_context_.so_context_file_path, subgraph);
} else {
model_proto = GetModelProtoFromFusedNode(fused_node, subgraph, logger);
Expand All @@ -110,7 +115,10 @@ BackendManager::BackendManager(SessionContext& session_context,
if (ModelHasSymbolicInputDims(subgraph)) {
subgraph_context_.has_dynamic_input_shape = true;
LOGS_DEFAULT(INFO) << "[OpenVINO-EP] Model has symbolic input dims";
if (!session_context_.disable_dynamic_shapes) {
if ((!session_context_.disable_dynamic_shapes &&
(session_context_.device_type.find("CPU") != std::string::npos ||
session_context_.device_type.find("GPU") != std::string::npos)) ||
(subgraph_context_.is_ep_ctx_graph)) {
LOGS_DEFAULT(INFO) << "[OpenVINO-EP] Starting backend initialization. "
<< "Creating backend Dynamic Shapes";
try {
Expand Down Expand Up @@ -590,7 +598,7 @@ void BackendManager::Compute(OrtKernelContext* context) {
// by rewriting the model to static shaped model at runtime based on input shape.
// disable_dynamic_shapes should be set for devices that don't support dynamic shapes.
bool need_dynamic_backend = subgraph_context_.has_dynamic_input_shape &&
session_context_.disable_dynamic_shapes;
session_context_.disable_dynamic_shapes && !subgraph_context_.is_ep_ctx_graph;

if (!need_dynamic_backend) {
concrete_backend_->Infer(context);
Expand Down
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