Add GGML_OV_FRONTEND option. Add readme.

This commit is contained in:
yumengbo 2024-11-23 06:03:08 +08:00 committed by Mustafa Cavus
parent 9b7b63d12c
commit 31bd816426
2 changed files with 0 additions and 114 deletions

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#include "ggml-ov-frontend-utils.h"
#include "ggml-backend-impl.h"
#include <openvino/frontend/manager.hpp>
#include <openvino/openvino.hpp>
using ov::frontend::tensorflow::ggml::GgmlOvGraphIterator;
std::shared_ptr<GgmlOvGraphIterator> get_ggml_graph_iterator(struct ggml_cgraph * cgraph) {
return std::make_shared<GgmlOvGraphIterator>(cgraph);
}
std::vector<ov::Tensor> get_ggml_graph_input_tensors(std::shared_ptr<GgmlOvGraphIterator> ggml_graph_iterator) {
std::vector<ov::Tensor> input_tensors;
auto input_names = ggml_graph_iterator->get_input_names();
ggml_graph_iterator->reset();
for (; !ggml_graph_iterator->is_end(); ggml_graph_iterator->next()) {
auto decoder = std::dynamic_pointer_cast<GgmlOvDecoder>(ggml_graph_iterator->get_decoder());
for (size_t inp = 0; inp < decoder->get_input_size(); ++inp) {
if (std::find(input_names.begin(), input_names.end(), decoder->get_input_name(inp)) != input_names.end()) {
auto input_data = decoder->get_input_ggml_tensor(inp)->data;
ov::Tensor input_tensor = ov::Tensor(decoder->get_input_type(inp), decoder->get_input_shape(inp).to_shape(), input_data);
input_tensors.push_back(input_tensor);
}
}
}
return input_tensors;
}
static ov::frontend::FrontEnd::Ptr get_ggml_frontend() {
ov::frontend::FrontEnd::Ptr front_end = nullptr;
auto fem = ov::frontend::FrontEndManager();
// std::string fe_so_path = "/home/yumeng/Code/test/openvino/bin/intel64/Release/libopenvino_ggml_frontend.so";
std::string fe_so_path = "/home/yumeng/Code/ov-ggml-frontend/openvino/bin/intel64/Release/libopenvino_ggml_frontend.so";
fem.register_front_end("ggml", fe_so_path);
front_end = fem.load_by_framework("ggml");
return front_end;
}
enum ggml_status openvino_frontend_compute (ggml_backend_t backend, struct ggml_cgraph * cgraph) {
ov::Core core;
auto devices = core.get_available_devices();
#ifdef GGML_OPENVINO_DEBUG
GGML_LOG_INFO("Device numbers: %d\n", devices.size());
#endif
// Get GGML Frontend
auto front_end = get_ggml_frontend();
if (!front_end) {
GGML_LOG_ERROR("GGML FrontEnd is not initialized \n");
return GGML_STATUS_FAILED;
} else {
#ifdef GGML_OPENVINO_DEBUG
GGML_LOG_INFO("GGML FrontEnd is initialized \n");
#endif
}
auto ggml_graph_iterator = get_ggml_graph_iterator(cgraph);
std::shared_ptr<ov::frontend::tensorflow::GraphIterator> graph_iterator = ggml_graph_iterator;
// Load GraphIterator -> InputModel
ov::frontend::InputModel::Ptr input_model = front_end->load(graph_iterator);
if (!input_model) {
GGML_LOG_ERROR("Input Model is not loaded \n");
return GGML_STATUS_FAILED;
} else {
#ifdef GGML_OPENVINO_DEBUG
GGML_LOG_INFO("Input Model loaded \n");
#endif
}
// TODO: Convert InputModel -> ov::Model
std::shared_ptr<ov::Model> model = front_end->convert(input_model);
if (!model) {
GGML_LOG_ERROR("Model is not converted \n");
} else {
#ifdef GGML_OPENVINO_DEBUG
GGML_LOG_INFO("Model converted \n");
#endif
}
// Loading a model to the device
ov::CompiledModel compiled_model = core.compile_model(model);
// Create infer request
ov::InferRequest infer_request = compiled_model.create_infer_request();
// Get input tensor
auto input_tensor = get_ggml_graph_input_tensors(ggml_graph_iterator);
// Set input tensor
for (size_t i = 0; i < input_tensor.size(); i++) {
infer_request.set_input_tensor(i, input_tensor[i]);
}
infer_request.infer();
ov::Tensor output_tensor = infer_request.get_output_tensor();
// Put data in output tensor to the last node -> data in cgraph
// Get output type
ggml_tensor* dst = cgraph->nodes[cgraph->n_nodes - 1];
std::memcpy(dst->data, output_tensor.data(), output_tensor.get_byte_size());
#ifdef GGML_OPENVINO_DEBUG
GGML_LOG_INFO("%f\n", *output_tensor.data<float>());
#endif
return GGML_STATUS_SUCCESS;
GGML_UNUSED(backend);
}

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#include "ggml-graph-iterator.h"
#include "ggml-backend-impl.h"
std::shared_ptr<ov::frontend::tensorflow::ggml::GgmlOvGraphIterator> get_ggml_graph_iterator(struct ggml_cgraph * cgraph);
enum ggml_status openvino_frontend_compute (ggml_backend_t backend, struct ggml_cgraph * cgraph);