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CVS-175980: Disable pre-allocation of memory for dynamic models through onnxruntime_perf_test #896

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Merged
MayureshV1 merged 4 commits into from
Jan 9, 2026
+15 −23
Merged

CVS-175980: Disable pre-allocation of memory for dynamic models through onnxruntime_perf_test #896

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596934f
Disable pre-allocation for dynamic models through onnxruntime_perf_test
n1harika Jan 8, 2026
6c201f7
Address review comments
n1harika Jan 8, 2026
35e276d
Address review comments 2
n1harika Jan 9, 2026
b9e7509
Remove reference type
n1harika Jan 9, 2026
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38 changes: 15 additions & 23 deletions onnxruntime/test/perftest/ort_test_session.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1016,37 +1016,29 @@ select from 'TF8', 'TF16', 'UINT8', 'FLOAT', 'ITENSOR'. \n)");
input_names_[i] = input_names_str_[i].c_str();
}

auto transform_fcn = std::function<int64_t(int64_t)>();
auto new_value = std::function<Ort::Value(OrtAllocator*, const std::vector<int64_t>&, Ort::ConstTensorTypeAndShapeInfo&)>();
if (device_memory_name_.empty()) {
transform_fcn = [](int64_t input) { return input; };
new_value = [](OrtAllocator*, const std::vector<int64_t>&, Ort::ConstTensorTypeAndShapeInfo&) {
return Ort::Value(nullptr);
};
} else {
if (!device_memory_name_.empty()) {

Ort::MemoryInfo memory_info(nullptr); // Default initialize, will be overwritten
if (device_memory_name_ == CUDA) {
memory_info = Ort::MemoryInfo(device_memory_name_.data(), OrtArenaAllocator, 0, OrtMemTypeDefault);
memory_info = Ort::MemoryInfo(device_memory_name_.data(), OrtArenaAllocator, 0, OrtMemTypeDefault);
} else {
memory_info = Ort::MemoryInfo(device_memory_name_.data(), OrtArenaAllocator, 0, OrtMemTypeCPUOutput);
memory_info = Ort::MemoryInfo(device_memory_name_.data(), OrtArenaAllocator, 0, OrtMemTypeCPUOutput);
}
custom_allocator_ = Ort::Allocator(session_, memory_info);
// Switch to custom
// Switch to custom allocator
allocator_ = Ort::UnownedAllocator(custom_allocator_);

// free dimensions are treated as 1 if not overridden
transform_fcn = [](int64_t input) { return (input == -1) ? -input : input; };
new_value = [](OrtAllocator* allocator, const std::vector<int64_t>& output_shape, Ort::ConstTensorTypeAndShapeInfo& tensor_info) {
return Ort::Value::CreateTensor(allocator, output_shape.data(), output_shape.size(), tensor_info.GetElementType());
};
}

for (size_t i = 0; i < output_names_raw_ptr.size(); i++) {
Ort::TypeInfo type_info = session_.GetOutputTypeInfo(i);
auto tensor_info = type_info.GetTensorTypeAndShapeInfo();
std::vector<int64_t> output_shape = tensor_info.GetShape();
std::transform(output_shape.begin(), output_shape.end(), output_shape.begin(), transform_fcn);
outputs_.emplace_back(new_value(allocator_, output_shape, tensor_info));
Ort::TypeInfo type_info = session_.GetOutputTypeInfo(i);
auto tensor_info = type_info.GetTensorTypeAndShapeInfo();
std::vector<int64_t> output_shape = tensor_info.GetShape();
auto is_dynamic = std::find(output_shape.begin(), output_shape.end(), -1) != output_shape.end();
if (is_dynamic || device_memory_name_.empty()) {
outputs_.emplace_back(Ort::Value(nullptr));
} else {
auto new_value = Ort::Value::CreateTensor(allocator_, output_shape.data(), output_shape.size(), tensor_info.GetElementType());
outputs_.emplace_back(std::move(new_value));
}
}
}

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