CudaMemoryManager.hpp

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#ifndef HTGS_CUDAMEMORYMANAGER_HPP
#define HTGS_CUDAMEMORYMANAGER_HPP
#ifdef USE_CUDA

#include <htgs/core/memory/MemoryManager.hpp>
#include <htgs/api/IMemoryAllocator.hpp>
#include <cuda_runtime_api.h>

namespace htgs {
template<class T>
class CudaMemoryManager : public MemoryManager<T> {

 public:
  CudaMemoryManager(std::string name,
                    int *cudaIds,
                    size_t memoryPoolSize,
                    std::shared_ptr<IMemoryAllocator < T>> memoryAllocator,
                    MMType type) :
      MemoryManager<T>(name, memoryPoolSize, memoryAllocator, type) {
    this->cudaIds = cudaIds;
    if (type != MMType::Static)
    {
      std::cerr << "WARNING: The CudaMemoryManagers " << name << " should use Static memory allocation to avoid "
          "unnecessary GPU synchronization" << std::endl;
    }
  }

  void initialize() override {
    cudaSetDevice(this->cudaIds[this->getPipelineId()]);
    MemoryManager<T>::initialize();
  }

  std::string getName() override {
    return "Cuda" + MemoryManager<T>::getName();
  }

  MemoryManager <T> *copy() override {
    return new CudaMemoryManager(this->getMemoryManagerName(),
                                 this->cudaIds,
                                 this->getMemoryPoolSize(),
                                 this->getAllocator(),
                                 this->getType());
  }

 private:
  int *cudaIds; 
};

}
#endif //USE_CUDA
#endif //HTGS_CUDAMEMORYMANAGER_HPP