cuda_data_offloading_node.h

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#pragma once
 
#include <cstddef>
 
#include "sdfg/codegen/dispatchers/block_dispatcher.h"
#include "sdfg/data_flow/data_flow_graph.h"
#include "sdfg/data_flow/data_flow_node.h"
#include "sdfg/data_flow/library_node.h"
#include "sdfg/element.h"
#include "sdfg/function.h"
#include "sdfg/graph/graph.h"
#include "sdfg/serializer/json_serializer.h"
#include "sdfg/symbolic/symbolic.h"
#include "sdfg/targets/offloading/data_offloading_node.h"
 
namespace sdfg {
namespace cuda {
 
inline data_flow::LibraryNodeCode LibraryNodeType_CUDA_Offloading("CUDAOffloading");
 
class CUDADataOffloadingNode : public offloading::DataOffloadingNode {
private:
    symbolic::Expression device_id_;
 
public:
    CUDADataOffloadingNode(
        size_t element_id,
        const DebugInfo& debug_info,
        const graph::Vertex vertex,
        data_flow::DataFlowGraph& parent,
        offloading::DataTransferDirection transfer_direction,
        offloading::BufferLifecycle buffer_lifecycle,
        symbolic::Expression size,
        symbolic::Expression device_id
    );
 
    void validate(const Function& function) const override;
 
    const symbolic::Expression device_id() const;
 
    std::unique_ptr<data_flow::DataFlowNode>
    clone(size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph& parent) const override;
 
    symbolic::SymbolSet symbols() const override;
 
    void replace(const symbolic::Expression old_expression, const symbolic::Expression new_expression) override;
 
    virtual bool blocking() const override;
 
    virtual bool redundant_with(const offloading::DataOffloadingNode& other) const override;
 
    virtual bool equal_with(const offloading::DataOffloadingNode& other) const override;
 
    virtual bool is_same_target(const DataOffloadingNode& other) const override;
};
 
class CUDADataOffloadingNodeDispatcher : public codegen::LibraryNodeDispatcher {
public:
    CUDADataOffloadingNodeDispatcher(
        codegen::LanguageExtension& language_extension,
        const Function& function,
        const data_flow::DataFlowGraph& data_flow_graph,
        const data_flow::LibraryNode& node
    );
 
    void dispatch_code_with_edges(
        codegen::CodegenOutput& out,
        std::vector<codegen::DispatchInput>& inputs,
        std::vector<codegen::DispatchOutput>& outputs
    ) override;
 
    virtual codegen::InstrumentationInfo instrumentation_info() const override;
};
 
class CUDADataOffloadingNodeSerializer : public offloading::DataOffloadingNodeSerializer {
public:
    nlohmann::json serialize(const sdfg::data_flow::LibraryNode& library_node) override;
 
    data_flow::LibraryNode& deserialize(
        const nlohmann::json& j,
        sdfg::builder::StructuredSDFGBuilder& builder,
        sdfg::structured_control_flow::Block& parent
    ) override;
};
 
} // namespace cuda
} // namespace sdfg