taskfusion.h

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// This file is part of the Peano project. For conditions of distribution and
// use, please see the copyright notice at www.peano-framework.org
#pragma once
 
 
#include <map>
 
#include "tarch/multicore/multicore.h"
#include "tarch/multicore/BooleanSemaphore.h"
#include "tarch/timing/GlidingAverageMeasurement.h"
 
 
namespace tarch {
  namespace multicore {
    class Task;
 
    namespace taskfusion {
      extern const std::string DirectlyInsertFusedTaskIntoReadyQueueStatisticsIdentifier;
 
      extern const std::string MapFusedTaskOntoNativeTaskStatisticsIdentifier;
 
      extern const std::string ProcessFusedTaskDirectlyStatisticsIdentifier;
 
      struct FusableTasksQueue;
 
      void handleFusableTask(
        Task*                  task,
        std::set<TaskNumber>   inDependencies,
        const TaskNumber&      taskNumber
      );
 
      void processAllReadyTasks();
 
      void processAndFuseAllReadyTasks();
 
      void handleFusableTask_ProducerConsumerTaskSequence(
        Task*                  task,
        FusableTasksQueue&     taskQueue,
        std::set<TaskNumber>   inDependencies,
        const TaskNumber&      taskNumber,
        const tarch::multicore::orchestration::Strategy::FuseInstruction&  fuseInstruction
      );
 
      void handleFusableTask_LazyEvaluation(
        Task*                  task,
        FusableTasksQueue&     taskQueue,
        std::set<TaskNumber>   inDependencies,
        const TaskNumber&      taskNumber,
        const tarch::multicore::orchestration::Strategy::FuseInstruction&  fuseInstruction
      );
 
      void handleFusableTask_EagerConsumerTasks(
        Task*                  task,
        FusableTasksQueue&     taskQueue,
        std::set<TaskNumber>   inDependencies,
        const TaskNumber&      taskNumber,
        const tarch::multicore::orchestration::Strategy::FuseInstruction&  fuseInstruction
      );
 
      bool ensureHeldBackTasksAreMappedOntoNativeTasks(const std::set<TaskNumber>& taskNumbers);
 
      bool ensureHeldBackTasksAreMappedOntoNativeTasks_LazyEvaluation(const std::set<TaskNumber>& inDependencies);
 
      bool ensureHeldBackTasksAreMappedOntoNativeTasks_EagerConsumerTasks(const std::set<TaskNumber>& inDependencies);
    } // namespace taskfusion
  }
}