sdc_scheduling.hpp

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/*
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 *
 *             ***********************************************
 *                              PandA Project
 *                     URL: http://panda.dei.polimi.it
 *                       Politecnico di Milano - DEIB
 *                        System Architectures Group
 *             ***********************************************
 *              Copyright (C) 2014-2024 Politecnico di Milano
 *
 *   This file is part of the PandA framework.
 *
 *   The PandA framework is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 3 of the License, or
 *   (at your option) any later version.
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 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
#ifndef SDC_SCHEDULING_HPP
#define SDC_SCHEDULING_HPP

#include "scheduling.hpp"

#include "custom_map.hpp"
#include "custom_set.hpp"
#include "hash_helper.hpp"

#include <list>
#include <set>
#include <vector>

CONSTREF_FORWARD_DECL(AllocationInformation);
class bb_vertex_order_by_map;
CONSTREF_FORWARD_DECL(BBGraph);
CONSTREF_FORWARD_DECL(BehavioralHelper);
REF_FORWARD_DECL(fu_binding);
REF_FORWARD_DECL(meilp_solver);
class OpVertexSet;
REF_FORWARD_DECL(SDCSorter);

class SDCScheduling : public Scheduling
{
   OpGraphConstRef op_graph;

   BBGraphConstRef basic_block_graph;

   OpGraphConstRef feedback_op_graph;

   BehavioralHelperConstRef behavioral_helper;

   AllocationInformationConstRef allocation_information;

   fu_bindingRef res_binding;

   double clock_period;

   double margin;

   CustomUnorderedMap<std::pair<vertex, unsigned int>, unsigned int> operation_to_varindex;

   // CustomSet<vertex> unbounded_operations;

   CustomUnorderedMap<unsigned int, CustomSet<vertex>> sharing_operations;

   // CustomMap<vertex, CustomSet<vertex>> full_reachability_map;

   CustomUnorderedSet<unsigned int> limited_resources;

#ifndef NDEBUG
   CustomUnorderedSet<EdgeDescriptor> temp_edges;
#endif

   void ExecLoop();

   void Initialize() override;

   void AddDelayConstraints(const meilp_solverRef solver, const OpGraphConstRef filtered_op_graph,
#ifndef NDEBUG
                            const OpGraphConstRef debug_filtered_op_graph,
#endif
                            const std::set<vertex, bb_vertex_order_by_map>& loop_bbs);

   void AddDependenceConstraint(const meilp_solverRef solver, const vertex source, const vertex target,
                                const bool simultaneous) const;

   void AddStageConstraints(const meilp_solverRef solver, const vertex operation) const;

   const CustomUnorderedSet<std::tuple<HLSFlowStep_Type, HLSFlowStepSpecializationConstRef, HLSFlowStep_Relationship>>
   ComputeHLSRelationships(const DesignFlowStep::RelationshipType relationship_type) const override;

   void ComputeRelationships(DesignFlowStepSet& relationship,
                             const DesignFlowStep::RelationshipType relationship_type) override;

 public:
   std::list<std::vector<unsigned int>> movements_list;

   SDCScheduling(const ParameterConstRef parameters, const HLS_managerRef HLSMgr, unsigned int function_id,
                 const DesignFlowManagerConstRef design_flow_manager,
                 const HLSFlowStepSpecializationConstRef hls_flow_step_specialization);

   ~SDCScheduling() override;

   bool HasToBeExecuted() const override;

   DesignFlowStep_Status InternalExec() override;
};
#endif