Function host_alloc

src/device/multi/device.cpp:347–356

  }

  void *host_alloc(const MemoryType type, const size_t size) override
  {
    for (SubDevice &sub : devices) {
      if (sub.device->info.type != DEVICE_CPU) {
        return sub.device->host_alloc(type, size);
      }
    }

    return Device::host_alloc(type, size);
  }

  void host_free(const MemoryType type, void *host_pointer, const size_t size) override
  {